Moved zoom implementation to zutil. Man page for zoomsh
authorAdam Dickmeiss <adam@indexdata.dk>
Mon, 16 Sep 2002 18:45:13 +0000 (18:45 +0000)
committerAdam Dickmeiss <adam@indexdata.dk>
Mon, 16 Sep 2002 18:45:13 +0000 (18:45 +0000)
16 files changed:
Makefile.am
configure.in
debian/rules
doc/Makefile.am
doc/yaz-man.sgml
doc/zoomsh.sgml [new file with mode: 0644]
lib/Makefile.am
win/yaz.nsi
zoom/Makefile.am
zoom/zoom-c.c [deleted file]
zoom/zoom-opt.c [deleted file]
zoom/zoom-p.h [deleted file]
zutil/Makefile.am
zutil/zoom-c.c [new file with mode: 0644]
zutil/zoom-opt.c [new file with mode: 0644]
zutil/zoom-p.h [new file with mode: 0644]

index 7c8b583..86477e2 100644 (file)
@@ -1,10 +1,10 @@
-## $Id: Makefile.am,v 1.14 2002-06-02 21:34:45 adam Exp $
+## $Id: Makefile.am,v 1.15 2002-09-16 18:45:13 adam Exp $
 
 AUTOMAKE_OPTIONS = foreign 
 
-DIST_SUBDIRS=util odr z39.50 ill zutil comstack ccl tab retrieval server lib zoom include client ztest doc
+DIST_SUBDIRS=util odr z39.50 ill zutil comstack ccl tab retrieval server lib include client ztest zoom doc
 
-SUBDIRS = util odr comstack z39.50 ill zutil ccl zoom tab retrieval server include lib client ztest
+SUBDIRS = util odr comstack z39.50 ill zutil ccl tab retrieval server include lib client ztest zoom
 
 aclocaldir=$(datadir)/aclocal
 
index cf5c14d..c5d35b0 100644 (file)
@@ -1,6 +1,6 @@
 dnl YAZ Toolkit, Index Data 1994-2002
 dnl See the file LICENSE for details.
-dnl $Id: configure.in,v 1.88 2002-09-16 14:16:31 adam Exp $
+dnl $Id: configure.in,v 1.89 2002-09-16 18:45:13 adam Exp $
 AC_INIT(include/yaz/yaz-version.h)
 AM_INIT_AUTOMAKE(yaz, 1.9.1)
 dnl
@@ -328,9 +328,9 @@ server/Makefile
 include/Makefile
 include/yaz/Makefile
 lib/Makefile
-zoom/Makefile
 client/Makefile
 ztest/Makefile
+zoom/Makefile
 doc/Makefile
 doc/yaz.xml
 doc/yazhtml.dsl
index b8c2d8c..90573eb 100755 (executable)
@@ -84,7 +84,7 @@ stamp-install: stamp-build
 binary-indep: build install
        dh_testdir
        dh_testroot
-       dh_installdocs -p yaz-doc doc/
+       dh_installdocs -p yaz-doc doc/*.html doc/*.pdf
        dh_installchangelogs -p yaz-doc
        dh_link -p yaz-doc
        dh_strip -p yaz-doc
@@ -118,8 +118,8 @@ endif
 
        dh_installdeb -p yaz-runtime
        dh_installdeb -p yaz-devel
-       dh_installman -p yaz-runtime doc/yaz-client.1 doc/yaz-ztest.8 doc/yaz-config.1 doc/yaz.7
-       dh_undocumented -p yaz-runtime yaz-comp.1 zoomsh.1
+       dh_installman -p yaz-runtime doc/yaz-client.1 doc/yaz-ztest.8 doc/yaz-config.1 doc/yaz.7 doc/zoomsh.1
+       dh_undocumented -p yaz-runtime yaz-comp.1
        echo "libyaz 1 yaz-runtime" > debian/yaz-runtime/DEBIAN/shlibs
        echo "libyazthread 1 yaz-runtime" >> debian/yaz-runtime/DEBIAN/shlibs
        echo "libyazmalloc 1 yaz-runtime" >> debian/yaz-runtime/DEBIAN/shlibs
index f1a3a19..15a2f59 100644 (file)
@@ -1,4 +1,4 @@
-## $Id: Makefile.am,v 1.32 2002-09-16 14:16:31 adam Exp $
+## $Id: Makefile.am,v 1.33 2002-09-16 18:45:13 adam Exp $
 
 docdir=$(datadir)/doc/@PACKAGE@
 
@@ -27,8 +27,9 @@ HTMLFILES = asn.external.html asn.html asn.oid.html asn.pdu.html \
 
 DOCFILES=$(HTMLFILES) yaz.pdf
 MANFILES=yaz-client.1 yaz-client-ssl.1 yaz-ztest.8 \
-       yaz-ztest-ssl.8 yaz-config.1 yaz.7
-REFFILES=yaz-client.sgml yaz-ztest.sgml yaz-config.sgml yaz-man.sgml
+       yaz-ztest-ssl.8 yaz-config.1 yaz.7 zoomsh.1
+REFFILES=yaz-client.sgml yaz-ztest.sgml yaz-config.sgml \
+       yaz-man.sgml zoomsh.sgml
 
 SUPPORTFILES=yazhtml.dsl yazphp.dsl yazprint.dsl xml.dcl id.eps id.png
 
@@ -49,6 +50,9 @@ yaz-config.1: yaz-config.sgml
 yaz.7: yaz-man.sgml
        cd $(srcdir); docbook2man yaz-man.sgml
 
+zoomsh.1: zoomsh.sgml
+       cd $(srcdir); docbook2man zoomsh.sgml
+
 yaz-ztest-ssl.8: yaz-ztest.8
        ln -s yaz-ztest.8 yaz-ztest-ssl.8
 
index 8f5bdce..0bb8517 100644 (file)
@@ -1,5 +1,5 @@
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN">
-<!-- $Id: yaz-man.sgml,v 1.1 2002-09-16 14:16:31 adam Exp $ -->
+<!-- $Id: yaz-man.sgml,v 1.2 2002-09-16 18:45:13 adam Exp $ -->
 <refentry id="yaz">
  <refmeta>
   <refentrytitle>yaz</refentrytitle>
@@ -64,7 +64,8 @@
  <refsect1><title>SEE ALSO</title>
   <para><command>yaz-client(1)</command>, 
    <command>yaz-ztest(8)</command>, 
-   <command>yaz-config(1)</command>
+   <command>yaz-config(1)</command>,
+   <command>zoomsh(1)</command>
   </para>
   <para>YAZ manual (
    <filename><replaceable>prefix</replaceable>/share/yaz/doc</filename>)
diff --git a/doc/zoomsh.sgml b/doc/zoomsh.sgml
new file mode 100644 (file)
index 0000000..4d56535
--- /dev/null
@@ -0,0 +1,152 @@
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN" [
+     <!ENTITY zoomsh-commands SYSTEM "zoomsh-commands.xml">
+]>
+<!-- $Id: zoomsh.sgml,v 1.1 2002-09-16 18:45:13 adam Exp $ -->
+<refentry id="zoomsh">
+ <refmeta>
+  <refentrytitle>zoomsh</refentrytitle>
+  <manvolnum>1</manvolnum>
+ </refmeta>
+ <refnamediv>
+  <refname>zoomsh</refname>
+  <refpurpose>ZOOM shell</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+  <cmdsynopsis>
+   <command>zoomsh</command>
+   <arg choice="opt" rep="repeat">commands</arg>
+  </cmdsynopsis>
+
+  <refsect1><title>DESCRIPTION</title>
+   <para>
+    <command>zoomsh</command> is a ZOOM client with a simple
+    command line interface. The client demonstrates the ZOOM
+    API and is useful for testing targets.
+   </para>
+   <para>
+    You may parse one or more commands to <command>zoomsh</command>.
+    These commands are invoked first. 
+   </para>
+  </refsect1>
+  <refsect1><title>EXAMPLES</title>
+   <para>
+    If you start the <command>yaz-ztest</command> in one console you
+    can use the ZOOM shell as follows:
+    <screen><![CDATA[
+$ zoomsh
+ZOOM>connect localhost:9999
+ZOOM>search computer
+localhost:9999: 7 hits
+ZOOM>show 0 1
+1 Default USmarc
+001    11224466 
+003 DLC
+005 00000000000000.0
+008 910710c19910701nju           00010 eng  
+010    $a    11224466 
+040    $a DLC $c DLC
+050 00 $a 123-xyz
+100 10 $a Jack Collins
+245 10 $a How to program a computer
+260 1  $a Penguin
+263    $a 8710
+300    $a p. cm.
+ZOOM>quit
+]]>
+    </screen>
+   </para>
+   <para>
+    You can also achieve the same result by passing the commands
+    as arguments on a single command line:
+   </para>
+   <para>
+    <literal>$ zoomsh "connect localhost:9999" "search computer"</literal>
+    <literal>"show 0 1" quit</literal>
+   </para>
+  </refsect1>
+  <refsect1><title>COMMANDS</title>
+   <variablelist>
+    
+    <varlistentry><term><literal>connect</literal>
+      <replaceable>zurl</replaceable></term>
+     <listitem><para>
+       Connects to the target given by <replaceable>zurl</replaceable>.
+      </para></listitem></varlistentry>
+    
+    <varlistentry><term><literal>close</literal>
+      [<replaceable>zurl</replaceable>]</term>
+     <listitem><para>
+       Closes connection to target given by
+       <replaceable>zurl</replaceable> or all targets if
+       <replaceable>zurl</replaceable> was omitted.
+      </para></listitem></varlistentry>
+    
+    <varlistentry><term><literal>show</literal>
+      [<replaceable>start</replaceable>
+      [<replaceable>count</replaceable>]]
+     </term>
+     <listitem><para>
+       Displays <literal>count</literal> records starting at offset given
+       by <replaceable>start</replaceable>. First records has offset 0
+       (unlike the Z39.50 protocol).
+      </para></listitem></varlistentry>
+    
+    <varlistentry><term><literal>quit</literal>
+     </term>
+     <listitem><para>
+       Quits <command>zoomsh</command>.
+      </para></listitem></varlistentry>
+    
+    <varlistentry><term><literal>set</literal>
+      <replaceable>name</replaceable>
+      [<replaceable>value</replaceable>]
+     </term>
+     <listitem><para>
+       Sets option <replaceable>name</replaceable> to
+       <replaceable>value</replaceable>.
+      </para></listitem></varlistentry>
+    
+    <varlistentry><term><literal>get</literal>
+      <replaceable>name</replaceable>
+     </term>
+     <listitem><para>
+       Prints value of option <replaceable>name</replaceable>.
+      </para></listitem></varlistentry>
+    
+    <varlistentry><term><literal>help</literal>
+     </term>
+     <listitem><para>
+       Prints list of available commands.
+      </para></listitem></varlistentry>
+    
+   </variablelist>
+   
+  </refsect1>
+  <refsect1><title>SEE ALSO</title>
+   <para>yaz(7), <command>yaz-ztest(8)</command></para>
+   <para>
+    Section "Building clients with ZOOM" in the YAZ manual.
+   </para>
+   <para>
+    <ulink url="http://zoom.z3950.org/">ZOOM home page</ulink>.
+   </para>
+  </refsect1>
+</refentry>
+
+<!-- Keep this comment at the end of the file
+Local variables:
+mode: sgml
+sgml-omittag:t
+sgml-shorttag:t
+sgml-minimize-attributes:nil
+sgml-always-quote-attributes:t
+sgml-indent-step:1
+sgml-indent-data:t
+sgml-parent-document:nil
+sgml-local-catalogs: nil
+sgml-namecase-general:t
+End:
+-->
index 94c371e..1965843 100644 (file)
@@ -1,4 +1,4 @@
-## $Id: Makefile.am,v 1.22 2002-06-02 21:34:45 adam Exp $
+## $Id: Makefile.am,v 1.23 2002-09-16 18:45:13 adam Exp $
 
 if ISTHR
 extra=libyazthread.la
@@ -76,5 +76,5 @@ libyaz_la_LIBADD=../odr/libodr.la \
  ../comstack/libcomstack.la ../server/libserver.la \
  ../util/libutil.la ../retrieval/libret.la \
  ../ccl/libccl.la ../zutil/libzutil.la \
- ../zoom/libzoom.la ../ill/libill.la ../z39.50/libz39.50.la
+ ../ill/libill.la ../z39.50/libz39.50.la
 
index 98939e8..b5ef142 100644 (file)
@@ -1,4 +1,4 @@
-; $Id: yaz.nsi,v 1.12 2002-09-10 18:43:03 adam Exp $
+; $Id: yaz.nsi,v 1.13 2002-09-16 18:45:14 adam Exp $
 
 !define VERSION "1.9.1"
 
@@ -107,11 +107,11 @@ Section "YAZ Source"
        File ..\ill\*.asn
        SetOutPath $INSTDIR\zutil
        File ..\zutil\*.c
+       File ..\zutil\*.h
        SetOutPath $INSTDIR\ccl
        File ..\ccl\*.c
        SetOutPath $INSTDIR\zoom
        File ..\zoom\*.c
-       File ..\zoom\*.h
        SetOutPath $INSTDIR\comstack
        File ..\comstack\*.c
        SetOutPath $INSTDIR\server
index 24e7f4c..d656356 100644 (file)
@@ -1,25 +1,21 @@
-## $Id: Makefile.am,v 1.4 2002-06-02 21:27:17 adam Exp $
+## $Id: Makefile.am,v 1.5 2002-09-16 18:45:14 adam Exp $
 ## Copyright (C) 2001, Index Data
 
 AM_CPPFLAGS = -I$(top_srcdir)/include
-noinst_LTLIBRARIES = libzoom.la
-libzoom_la_SOURCES = zoom-opt.c zoom-c.c zoom-p.h
-
-zoomlibs = libzoom.la ../comstack/libcomstack.la ../z39.50/libz39.50.la ../ill/libill.la ../zutil/libzutil.la  ../odr/libodr.la ../util/libutil.la $(READLINE_LIBS)
-
-zoomsh_LDADD = $(zoomlibs)
-zoomtst1_LDADD = $(zoomlibs)
-zoomtst2_LDADD = $(zoomlibs)
-zoomtst3_LDADD = $(zoomlibs)
-zoomtst4_LDADD = $(zoomlibs)
-zoomtst5_LDADD = $(zoomlibs)
-zoomtst6_LDADD = $(zoomlibs)
-zoomtst7_LDADD = $(zoomlibs)
-zoomtst8_LDADD = $(zoomlibs)
 
 noinst_PROGRAMS = zoomtst1 zoomtst2 zoomtst3 zoomtst4 zoomtst5 zoomtst6 zoomtst7 zoomtst8
 bin_PROGRAMS = zoomsh
 
+zoomtst1_LDADD = ../lib/libyaz.la
+zoomtst2_LDADD = ../lib/libyaz.la
+zoomtst3_LDADD = ../lib/libyaz.la
+zoomtst4_LDADD = ../lib/libyaz.la
+zoomtst5_LDADD = ../lib/libyaz.la
+zoomtst6_LDADD = ../lib/libyaz.la
+zoomtst7_LDADD = ../lib/libyaz.la
+zoomtst8_LDADD = ../lib/libyaz.la
+zoomsh_LDADD = ../lib/libyaz.la $(READLINE_LIBS)
+
 zoomtst1_SOURCES = zoomtst1.c
 zoomtst2_SOURCES = zoomtst2.c
 zoomtst3_SOURCES = zoomtst3.c
diff --git a/zoom/zoom-c.c b/zoom/zoom-c.c
deleted file mode 100644 (file)
index e081199..0000000
+++ /dev/null
@@ -1,2504 +0,0 @@
-/*
- * $Id: zoom-c.c,v 1.44 2002-09-13 08:57:03 adam Exp $
- *
- * ZOOM layer for C, connections, result sets, queries.
- */
-#include <assert.h>
-#include <yaz/xmalloc.h>
-#include <yaz/otherinfo.h>
-#include <yaz/log.h>
-#include <yaz/pquery.h>
-#include <yaz/diagbib1.h>
-#include <yaz/charneg.h>
-#include <yaz/ill.h>
-
-#include "zoom-p.h"
-
-#if HAVE_SYS_POLL_H
-#include <sys/poll.h>
-#endif
-
-static int ZOOM_connection_send_init (ZOOM_connection c);
-static int do_write_ex (ZOOM_connection c, char *buf_out, int len_out);
-
-static ZOOM_Event ZOOM_Event_create (int kind)
-{
-    ZOOM_Event event = (ZOOM_Event) xmalloc (sizeof(*event));
-    event->kind = kind;
-    event->next = 0;
-    event->prev = 0;
-    return event;
-}
-
-static void ZOOM_Event_destroy (ZOOM_Event event)
-{
-    xfree (event);
-}
-
-static void ZOOM_connection_put_event (ZOOM_connection c, ZOOM_Event event)
-{
-    if (c->m_queue_back)
-    {
-       c->m_queue_back->prev = event;
-       assert (c->m_queue_front);
-    }
-    else
-    {
-       assert (!c->m_queue_front);
-       c->m_queue_front = event;
-    }
-    event->next = c->m_queue_back;
-    event->prev = 0;
-    c->m_queue_back = event;
-}
-
-static ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c)
-{
-    ZOOM_Event event = c->m_queue_front;
-    if (!event)
-       return 0;
-    assert (c->m_queue_back);
-    c->m_queue_front = event->prev;
-    if (c->m_queue_front)
-    {
-       assert (c->m_queue_back);
-       c->m_queue_front->next = 0;
-    }
-    else
-       c->m_queue_back = 0;
-    c->last_event = event->kind;
-    return event;
-}
-
-static void clear_error (ZOOM_connection c)
-{
-
-    switch (c->error)
-    {
-    case ZOOM_ERROR_CONNECT:
-    case ZOOM_ERROR_MEMORY:
-    case ZOOM_ERROR_DECODE:
-    case ZOOM_ERROR_CONNECTION_LOST:
-    case ZOOM_ERROR_INIT:
-    case ZOOM_ERROR_INTERNAL:
-        break;
-    default:
-        c->error = ZOOM_ERROR_NONE;
-        xfree (c->addinfo);
-        c->addinfo = 0;
-    }
-}
-
-ZOOM_task ZOOM_connection_add_task (ZOOM_connection c, int which)
-{
-    ZOOM_task *taskp = &c->tasks;
-    while (*taskp)
-       taskp = &(*taskp)->next;
-    *taskp = (ZOOM_task) xmalloc (sizeof(**taskp));
-    (*taskp)->running = 0;
-    (*taskp)->which = which;
-    (*taskp)->next = 0;
-    clear_error (c);
-    return *taskp;
-}
-
-ZOOM_task ZOOM_connection_insert_task (ZOOM_connection c, int which)
-{
-    ZOOM_task task = (ZOOM_task) xmalloc (sizeof(*task));
-
-    task->next = c->tasks;
-    c->tasks = task;
-
-    task->running = 0;
-    task->which = which;
-    clear_error (c);
-    return task;
-}
-
-void ZOOM_connection_remove_task (ZOOM_connection c)
-{
-    ZOOM_task task = c->tasks;
-
-    if (task)
-    {
-       c->tasks = task->next;
-       switch (task->which)
-       {
-       case ZOOM_TASK_SEARCH:
-           ZOOM_resultset_destroy (task->u.search.resultset);
-           break;
-       case ZOOM_TASK_RETRIEVE:
-           ZOOM_resultset_destroy (task->u.retrieve.resultset);
-           break;
-        case ZOOM_TASK_CONNECT:
-            break;
-        case ZOOM_TASK_SCAN:
-            ZOOM_scanset_destroy (task->u.scan.scan);
-            break;
-        case ZOOM_TASK_PACKAGE:
-            ZOOM_package_destroy (task->u.package);
-            break;
-       default:
-           assert (0);
-       }
-       xfree (task);
-    }
-}
-
-void ZOOM_connection_remove_tasks (ZOOM_connection c)
-{
-    while (c->tasks)
-       ZOOM_connection_remove_task(c);
-}
-
-static ZOOM_record record_cache_lookup (ZOOM_resultset r, int pos);
-
-ZOOM_API(ZOOM_connection)
-ZOOM_connection_create (ZOOM_options options)
-{
-    ZOOM_connection c = (ZOOM_connection) xmalloc (sizeof(*c));
-
-    c->cs = 0;
-    c->mask = 0;
-    c->reconnect_ok = 0;
-    c->state = STATE_IDLE;
-    c->error = ZOOM_ERROR_NONE;
-    c->addinfo = 0;
-    c->buf_in = 0;
-    c->len_in = 0;
-    c->buf_out = 0;
-    c->len_out = 0;
-    c->resultsets = 0;
-
-    c->options = ZOOM_options_create_with_parent(options);
-
-    c->host_port = 0;
-    c->proxy = 0;
-    
-    c->charset = c->lang = 0;
-
-    c->cookie_out = 0;
-    c->cookie_in = 0;
-    c->client_IP = 0;
-    c->tasks = 0;
-
-    c->odr_in = odr_createmem (ODR_DECODE);
-    c->odr_out = odr_createmem (ODR_ENCODE);
-
-    c->async = 0;
-    c->support_named_resultsets = 0;
-    c->last_event = ZOOM_EVENT_NONE;
-
-    c->m_queue_front = 0;
-    c->m_queue_back = 0;
-    return c;
-}
-
-/* set database names. Take local databases (if set); otherwise
-   take databases given in ZURL (if set); otherwise use Default */
-static char **set_DatabaseNames (ZOOM_connection con, ZOOM_options options,
-                                 int *num)
-{
-    char **databaseNames;
-    const char *c;
-    int no = 2;
-    const char *cp = ZOOM_options_get (options, "databaseName");
-    
-    if (!cp || !*cp)
-    {
-        if (strncmp (con->host_port, "unix:", 5) == 0)
-           cp = strchr (con->host_port+5, ':');
-       else
-           cp = strchr (con->host_port, '/');
-       if (cp)
-           cp++;
-    }
-    if (cp)
-    {
-       c = cp;
-       while ((c = strchr(c, '+')))
-       {
-           c++;
-           no++;
-       }
-    }
-    else
-       cp = "Default";
-    databaseNames = (char**)
-        odr_malloc (con->odr_out, no * sizeof(*databaseNames));
-    no = 0;
-    while (*cp)
-    {
-       c = strchr (cp, '+');
-       if (!c)
-           c = cp + strlen(cp);
-       else if (c == cp)
-       {
-           cp++;
-           continue;
-       }
-       /* cp ptr to first char of db name, c is char
-          following db name */
-       databaseNames[no] = (char*) odr_malloc (con->odr_out, 1+c-cp);
-       memcpy (databaseNames[no], cp, c-cp);
-       databaseNames[no++][c-cp] = '\0';
-       cp = c;
-       if (*cp)
-           cp++;
-    }
-    databaseNames[no] = NULL;
-    *num = no;
-    return databaseNames;
-}
-
-ZOOM_API(ZOOM_connection)
-ZOOM_connection_new (const char *host, int portnum)
-{
-    ZOOM_connection c = ZOOM_connection_create (0);
-
-    ZOOM_connection_connect (c, host, portnum);
-    return c;
-}
-
-ZOOM_API(void)
-ZOOM_connection_connect(ZOOM_connection c,
-                        const char *host, int portnum)
-{
-    const char *val;
-    ZOOM_task task;
-
-    if (c->cs)
-    {
-        yaz_log (LOG_DEBUG, "reconnect");
-        c->reconnect_ok = 1;
-        return;
-    }
-    yaz_log(LOG_DEBUG, "connect");
-    xfree (c->proxy);
-    val = ZOOM_options_get (c->options, "proxy");
-    if (val && *val)
-       c->proxy = xstrdup (val);
-    else
-       c->proxy = 0;
-
-    xfree (c->charset);
-    val = ZOOM_options_get (c->options, "charset");
-    if (val && *val)
-       c->charset = xstrdup (val);
-    else
-       c->charset = 0;
-
-    xfree (c->lang);
-    val = ZOOM_options_get (c->options, "lang");
-    if (val && *val)
-       c->lang = xstrdup (val);
-    else
-       c->lang = 0;
-
-    xfree (c->host_port);
-    if (portnum)
-    {
-       char hostn[128];
-       sprintf (hostn, "%.80s:%d", host, portnum);
-       c->host_port = xstrdup(hostn);
-    }
-    else
-       c->host_port = xstrdup(host);
-
-    ZOOM_options_set(c->options, "host", c->host_port);
-
-    val = ZOOM_options_get (c->options, "cookie");
-    if (val && *val)
-        c->cookie_out = xstrdup (val);
-
-    val = ZOOM_options_get (c->options, "clientIP");
-    if (val && *val)
-        c->client_IP = xstrdup (val);
-
-    c->async = ZOOM_options_get_bool (c->options, "async", 0);
-    c->error = ZOOM_ERROR_NONE;
-
-    task = ZOOM_connection_add_task (c, ZOOM_TASK_CONNECT);
-
-    if (!c->async)
-    {
-       while (ZOOM_event (1, &c))
-           ;
-    }
-}
-
-ZOOM_API(ZOOM_query)
-ZOOM_query_create(void)
-{
-    ZOOM_query s = (ZOOM_query) xmalloc (sizeof(*s));
-
-    s->refcount = 1;
-    s->query = 0;
-    s->sort_spec = 0;
-    s->odr = odr_createmem (ODR_ENCODE);
-
-    return s;
-}
-
-ZOOM_API(void)
-ZOOM_query_destroy(ZOOM_query s)
-{
-    if (!s)
-       return;
-
-    (s->refcount)--;
-    yaz_log (LOG_DEBUG, "ZOOM_query_destroy count=%d", s->refcount);
-    if (s->refcount == 0)
-    {
-       odr_destroy (s->odr);
-       xfree (s);
-    }
-}
-
-ZOOM_API(int)
-ZOOM_query_prefix(ZOOM_query s, const char *str)
-{
-    s->query = (Z_Query *) odr_malloc (s->odr, sizeof(*s->query));
-    s->query->which = Z_Query_type_1;
-    s->query->u.type_1 =  p_query_rpn(s->odr, PROTO_Z3950, str);
-    if (!s->query->u.type_1)
-       return -1;
-    return 0;
-}
-
-ZOOM_API(int)
-ZOOM_query_sortby(ZOOM_query s, const char *criteria)
-{
-    s->sort_spec = yaz_sort_spec (s->odr, criteria);
-    if (!s->sort_spec)
-       return -1;
-    return 0;
-}
-
-static int do_write(ZOOM_connection c);
-
-ZOOM_API(void)
-ZOOM_connection_destroy(ZOOM_connection c)
-{
-    ZOOM_resultset r;
-    if (!c)
-       return;
-    if (c->cs)
-       cs_close (c->cs);
-    for (r = c->resultsets; r; r = r->next)
-       r->connection = 0;
-
-    xfree (c->buf_in);
-    xfree (c->addinfo);
-    odr_destroy (c->odr_in);
-    odr_destroy (c->odr_out);
-    ZOOM_options_destroy (c->options);
-    ZOOM_connection_remove_tasks (c);
-    xfree (c->host_port);
-    xfree (c->proxy);
-    xfree (c->charset);
-    xfree (c->lang);
-    xfree (c->cookie_out);
-    xfree (c->cookie_in);
-    xfree (c->client_IP);
-    xfree (c);
-}
-
-void ZOOM_resultset_addref (ZOOM_resultset r)
-{
-    if (r)
-       (r->refcount)++;
-}
-ZOOM_resultset ZOOM_resultset_create ()
-{
-    ZOOM_resultset r = (ZOOM_resultset) xmalloc (sizeof(*r));
-
-    r->refcount = 1;
-    r->size = 0;
-    r->odr = odr_createmem (ODR_ENCODE);
-    r->start = 0;
-    r->piggyback = 1;
-    r->setname = 0;
-    r->count = 0;
-    r->record_cache = 0;
-    r->r_sort_spec = 0;
-    r->r_query = 0;
-    r->search = 0;
-    r->connection = 0;
-    r->next = 0;
-    return r;
-}
-
-ZOOM_API(ZOOM_resultset)
-ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
-{
-    ZOOM_resultset r;
-    ZOOM_query s = ZOOM_query_create();
-
-    ZOOM_query_prefix (s, q);
-
-    r = ZOOM_connection_search (c, s);
-    ZOOM_query_destroy (s);
-    return r;
-}
-
-ZOOM_API(ZOOM_resultset)
-ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
-{
-    ZOOM_resultset r = ZOOM_resultset_create ();
-    ZOOM_task task;
-    const char *cp;
-
-    r->r_sort_spec = q->sort_spec;
-    r->r_query = q->query;
-    r->search = q;
-
-    r->options = ZOOM_options_create_with_parent(c->options);
-
-    r->start = ZOOM_options_get_int(r->options, "start", 0);
-    r->count = ZOOM_options_get_int(r->options, "count", 0);
-    r->piggyback = ZOOM_options_get_bool (r->options, "piggyback", 1);
-    cp = ZOOM_options_get (r->options, "setname");
-    if (cp)
-        r->setname = xstrdup (cp);
-    
-    r->connection = c;
-
-    r->next = c->resultsets;
-    c->resultsets = r;
-
-    task = ZOOM_connection_add_task (c, ZOOM_TASK_SEARCH);
-    task->u.search.resultset = r;
-    ZOOM_resultset_addref (r);  
-
-    (q->refcount)++;
-
-    if (!c->async)
-    {
-       while (ZOOM_event (1, &c))
-           ;
-    }
-    return r;
-}
-
-ZOOM_API(void)
-ZOOM_resultset_destroy(ZOOM_resultset r)
-{
-    if (!r)
-        return;
-    (r->refcount)--;
-    yaz_log (LOG_DEBUG, "destroy r = %p count=%d", r, r->refcount);
-    if (r->refcount == 0)
-    {
-        ZOOM_record_cache rc;
-
-        for (rc = r->record_cache; rc; rc = rc->next)
-            if (rc->rec.wrbuf_marc)
-                wrbuf_free (rc->rec.wrbuf_marc, 1);
-       if (r->connection)
-       {
-           /* remove ourselves from the resultsets in connection */
-           ZOOM_resultset *rp = &r->connection->resultsets;
-           while (1)
-           {
-               assert (*rp);   /* we must be in this list!! */
-               if (*rp == r)
-               {   /* OK, we're here - take us out of it */
-                   *rp = (*rp)->next;
-                   break;
-               }
-               rp = &(*rp)->next;
-           }
-       }
-       ZOOM_query_destroy (r->search);
-       ZOOM_options_destroy (r->options);
-       odr_destroy (r->odr);
-        xfree (r->setname);
-       xfree (r);
-    }
-}
-
-ZOOM_API(size_t)
-ZOOM_resultset_size (ZOOM_resultset r)
-{
-    return r->size;
-}
-
-static void do_close (ZOOM_connection c)
-{
-    if (c->cs)
-       cs_close(c->cs);
-    c->cs = 0;
-    c->mask = 0;
-    c->state = STATE_IDLE;
-}
-
-static void ZOOM_resultset_retrieve (ZOOM_resultset r,
-                                     int force_sync, int start, int count)
-{
-    ZOOM_task task;
-    ZOOM_connection c;
-
-    if (!r)
-       return;
-    c = r->connection;
-    if (!c)
-       return;
-    task = ZOOM_connection_add_task (c, ZOOM_TASK_RETRIEVE);
-    task->u.retrieve.resultset = r;
-    task->u.retrieve.start = start;
-    task->u.retrieve.count = count;
-
-    ZOOM_resultset_addref (r);
-
-    if (!r->connection->async || force_sync)
-       while (r->connection && ZOOM_event (1, &r->connection))
-           ;
-}
-
-ZOOM_API(void)
-ZOOM_resultset_records (ZOOM_resultset r, ZOOM_record *recs,
-                        size_t start, size_t count)
-{
-    int force_present = 0;
-
-    if (!r)
-       return ;
-    if (count && recs)
-        force_present = 1;
-    ZOOM_resultset_retrieve (r, force_present, start, count);
-    if (force_present)
-    {
-        size_t i;
-        for (i = 0; i< count; i++)
-            recs[i] = ZOOM_resultset_record_immediate (r, i+start);
-    }
-}
-
-static int do_connect (ZOOM_connection c)
-{
-    void *add;
-    const char *effective_host;
-
-    if (c->proxy)
-       effective_host = c->proxy;
-    else
-       effective_host = c->host_port;
-
-    yaz_log (LOG_DEBUG, "do_connect host=%s", effective_host);
-
-    assert (!c->cs);
-    c->cs = cs_create_host (effective_host, 0, &add);
-
-    if (c->cs)
-    {
-       int ret = cs_connect (c->cs, add);
-        if (ret == 0)
-        {
-            ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
-            ZOOM_connection_put_event(c, event);
-            ZOOM_connection_send_init(c);
-            c->state = STATE_ESTABLISHED;
-            return 1;
-        }
-        else if (ret > 0)
-       {
-           c->state = STATE_CONNECTING; 
-            c->mask = ZOOM_SELECT_EXCEPT;
-            if (c->cs->io_pending & CS_WANT_WRITE)
-                c->mask += ZOOM_SELECT_WRITE;
-            if (c->cs->io_pending & CS_WANT_READ)
-                c->mask += ZOOM_SELECT_READ;
-           return 1;
-       }
-    }
-    c->state = STATE_IDLE;
-    c->error = ZOOM_ERROR_CONNECT;
-    return 0;
-}
-
-int z3950_connection_socket(ZOOM_connection c)
-{
-    if (c->cs)
-       return cs_fileno(c->cs);
-    return -1;
-}
-
-int z3950_connection_mask(ZOOM_connection c)
-{
-    if (c->cs)
-       return c->mask;
-    return 0;
-}
-
-static void otherInfo_attach (ZOOM_connection c, Z_APDU *a, ODR out)
-{
-    int i;
-    for (i = 0; i<200; i++)
-    {
-        size_t len;
-       Z_OtherInformation **oi;
-        char buf[80];
-        const char *val;
-        const char *cp;
-        int oidval;
-
-        sprintf (buf, "otherInfo%d", i);
-        val = ZOOM_options_get (c->options, buf);
-        if (!val)
-            break;
-        cp = strchr (val, ':');
-        if (!cp)
-            continue;
-        len = cp - val;
-        if (len >= sizeof(buf))
-            len = sizeof(buf)-1;
-        memcpy (buf, val, len);
-        buf[len] = '\0';
-        oidval = oid_getvalbyname (buf);
-        if (oidval == VAL_NONE)
-            continue;
-        
-       yaz_oi_APDU(a, &oi);
-       yaz_oi_set_string_oidval(oi, out, oidval, 1, cp+1);
-    }
-}
-
-static int encode_APDU(ZOOM_connection c, Z_APDU *a, ODR out)
-{
-    assert (a);
-    if (c->cookie_out)
-    {
-       Z_OtherInformation **oi;
-       yaz_oi_APDU(a, &oi);
-       yaz_oi_set_string_oidval(oi, out, VAL_COOKIE, 1, c->cookie_out);
-    }
-    if (c->client_IP)
-    {
-       Z_OtherInformation **oi;
-       yaz_oi_APDU(a, &oi);
-       yaz_oi_set_string_oidval(oi, out, VAL_CLIENT_IP, 1, c->client_IP);
-    }
-    otherInfo_attach (c, a, out);
-    if (!z_APDU(out, &a, 0, 0))
-    {
-       FILE *outf = fopen("/tmp/apdu.txt", "a");
-       if (a && outf)
-       {
-           ODR odr_pr = odr_createmem(ODR_PRINT);
-           fprintf (outf, "a=%p\n", a);
-           odr_setprint(odr_pr, outf);
-           z_APDU(odr_pr, &a, 0, 0);
-           odr_destroy(odr_pr);
-       }
-       c->error = ZOOM_ERROR_ENCODE;
-       do_close (c);
-       return -1;
-    }
-    
-    return 0;
-}
-
-static int send_APDU (ZOOM_connection c, Z_APDU *a)
-{
-    ZOOM_Event event;
-    assert (a);
-    if (encode_APDU(c, a, c->odr_out))
-       return -1;
-    c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
-    event = ZOOM_Event_create (ZOOM_EVENT_SEND_APDU);
-    ZOOM_connection_put_event (c, event);
-    odr_reset(c->odr_out);
-    do_write (c);
-    return 0;
-}
-
-static int ZOOM_connection_send_init (ZOOM_connection c)
-{
-    const char *impname;
-    Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_initRequest);
-    Z_InitRequest *ireq = apdu->u.initRequest;
-    Z_IdAuthentication *auth = (Z_IdAuthentication *)
-        odr_malloc(c->odr_out, sizeof(*auth));
-    const char *auth_groupId = ZOOM_options_get (c->options, "group");
-    const char *auth_userId = ZOOM_options_get (c->options, "user");
-    const char *auth_password = ZOOM_options_get (c->options, "pass");
-    
-    ODR_MASK_SET(ireq->options, Z_Options_search);
-    ODR_MASK_SET(ireq->options, Z_Options_present);
-    ODR_MASK_SET(ireq->options, Z_Options_scan);
-    ODR_MASK_SET(ireq->options, Z_Options_sort);
-    ODR_MASK_SET(ireq->options, Z_Options_extendedServices);
-    ODR_MASK_SET(ireq->options, Z_Options_namedResultSets);
-    
-    ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_1);
-    ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_2);
-    ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_3);
-    
-    impname = ZOOM_options_get (c->options, "implementationName");
-    ireq->implementationName =
-       (char *) odr_malloc (c->odr_out, 15 + (impname ? strlen(impname) : 0));
-    strcpy (ireq->implementationName, "");
-    if (impname)
-    {
-       strcat (ireq->implementationName, impname);
-       strcat (ireq->implementationName, "/");
-    }                                         
-    strcat (ireq->implementationName, "ZOOM-C/YAZ");
-    
-    *ireq->maximumRecordSize =
-       ZOOM_options_get_int (c->options, "maximumRecordSize", 1024*1024);
-    *ireq->preferredMessageSize =
-       ZOOM_options_get_int (c->options, "preferredMessageSize", 1024*1024);
-    
-    if (auth_groupId || auth_password)
-    {
-       Z_IdPass *pass = (Z_IdPass *) odr_malloc(c->odr_out, sizeof(*pass));
-       int i = 0;
-       pass->groupId = 0;
-       if (auth_groupId && *auth_groupId)
-       {
-           pass->groupId = (char *)
-                odr_malloc(c->odr_out, strlen(auth_groupId)+1);
-           strcpy(pass->groupId, auth_groupId);
-           i++;
-       }
-       pass->userId = 0;
-       if (auth_userId && *auth_userId)
-       {
-           pass->userId = (char *)
-                odr_malloc(c->odr_out, strlen(auth_userId)+1);
-           strcpy(pass->userId, auth_userId);
-           i++;
-       }
-       pass->password = 0;
-       if (auth_password && *auth_password)
-       {
-           pass->password = (char *)
-                odr_malloc(c->odr_out, strlen(auth_password)+1);
-           strcpy(pass->password, auth_password);
-           i++;
-       }
-       if (i)
-       {
-           auth->which = Z_IdAuthentication_idPass;
-           auth->u.idPass = pass;
-           ireq->idAuthentication = auth;
-       }
-    }
-    else if (auth_userId)
-    {
-       auth->which = Z_IdAuthentication_open;
-       auth->u.open = (char *)
-            odr_malloc(c->odr_out, strlen(auth_userId)+1);
-       strcpy(auth->u.open, auth_userId);
-       ireq->idAuthentication = auth;
-    }
-    if (c->proxy)
-       yaz_oi_set_string_oidval(&ireq->otherInfo, c->odr_out,
-                                VAL_PROXY, 1, c->host_port);
-    if (c->charset||c->lang)
-    {
-       Z_OtherInformation **oi;
-       Z_OtherInformationUnit *oi_unit;
-       
-       yaz_oi_APDU(apdu, &oi);
-       
-       if ((oi_unit = yaz_oi_update(oi, c->odr_out, NULL, 0, 0)))
-       {
-            ODR_MASK_SET(ireq->options, Z_Options_negotiationModel);
-            
-            oi_unit->which = Z_OtherInfo_externallyDefinedInfo;
-            oi_unit->information.externallyDefinedInfo =
-                yaz_set_proposal_charneg
-                (c->odr_out,
-                 (const char **)&c->charset, (c->charset) ? 1:0,
-                 (const char **)&c->lang, (c->lang) ? 1:0, 1);
-       }
-    }
-    assert (apdu);
-    send_APDU (c, apdu);
-    
-    return 0;
-}
-
-static int ZOOM_connection_send_search (ZOOM_connection c)
-{
-    ZOOM_resultset r;
-    int lslb, ssub, mspn;
-    const char *syntax;
-    Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_searchRequest);
-    Z_SearchRequest *search_req = apdu->u.searchRequest;
-    const char *elementSetName;
-    const char *smallSetElementSetName;
-    const char *mediumSetElementSetName;
-    const char *schema;
-
-    assert (c->tasks);
-    assert (c->tasks->which == ZOOM_TASK_SEARCH);
-
-    r = c->tasks->u.search.resultset;
-
-    elementSetName =
-       ZOOM_options_get (r->options, "elementSetName");
-    smallSetElementSetName  =
-       ZOOM_options_get (r->options, "smallSetElementSetName");
-    mediumSetElementSetName =
-       ZOOM_options_get (r->options, "mediumSetElementSetName");
-    schema =
-       ZOOM_options_get (r->options, "schema");
-
-    if (!smallSetElementSetName)
-       smallSetElementSetName = elementSetName;
-
-    if (!mediumSetElementSetName)
-       mediumSetElementSetName = elementSetName;
-
-    assert (r);
-    assert (r->r_query);
-
-    /* prepare query for the search request */
-    search_req->query = r->r_query;
-
-    search_req->databaseNames =
-       set_DatabaseNames (c, r->options, &search_req->num_databaseNames);
-
-    /* get syntax (no need to provide unless piggyback is in effect) */
-    syntax = ZOOM_options_get (r->options, "preferredRecordSyntax");
-
-    lslb = ZOOM_options_get_int (r->options, "largeSetLowerBound", -1);
-    ssub = ZOOM_options_get_int (r->options, "smallSetUpperBound", -1);
-    mspn = ZOOM_options_get_int (r->options, "mediumSetPresentNumber", -1);
-    if (lslb != -1 && ssub != -1 && mspn != -1)
-    {
-       /* So're a Z39.50 expert? Let's hope you don't do sort */
-       *search_req->largeSetLowerBound = lslb;
-       *search_req->smallSetUpperBound = ssub;
-       *search_req->mediumSetPresentNumber = mspn;
-    }
-    else if (r->start == 0 && r->count > 0
-            && r->piggyback && !r->r_sort_spec && !schema)
-    {
-       /* Regular piggyback - do it unless we're going to do sort */
-       *search_req->largeSetLowerBound = 2000000000;
-       *search_req->smallSetUpperBound = r->count;
-       *search_req->mediumSetPresentNumber = r->count;
-       smallSetElementSetName = 0;  /* no need to provide this */
-    }
-    else
-    {
-       /* non-piggyback. Need not provide elementsets or syntaxes .. */
-       smallSetElementSetName = 0;
-       mediumSetElementSetName = 0;
-       syntax = 0;
-    }
-    if (smallSetElementSetName && *smallSetElementSetName)
-    {
-       Z_ElementSetNames *esn = (Z_ElementSetNames *)
-            odr_malloc (c->odr_out, sizeof(*esn));
-       
-       esn->which = Z_ElementSetNames_generic;
-       esn->u.generic = odr_strdup (c->odr_out, smallSetElementSetName);
-       search_req->smallSetElementSetNames = esn;
-    }
-    if (mediumSetElementSetName && *mediumSetElementSetName)
-    {
-       Z_ElementSetNames *esn = (Z_ElementSetNames *)
-            odr_malloc (c->odr_out, sizeof(*esn));
-       
-       esn->which = Z_ElementSetNames_generic;
-       esn->u.generic = odr_strdup (c->odr_out, mediumSetElementSetName);
-       search_req->mediumSetElementSetNames = esn;
-    }
-    if (syntax)
-       search_req->preferredRecordSyntax =
-           yaz_str_to_z3950oid (c->odr_out, CLASS_RECSYN, syntax);
-    
-    if (!r->setname)
-    {
-        if (c->support_named_resultsets)
-        {
-            char setname[14];
-            int ord;
-            /* find the lowest unused ordinal so that we re-use
-               result sets on the server. */
-            for (ord = 1; ; ord++)
-            {
-                ZOOM_resultset rp;
-                sprintf (setname, "%d", ord);
-                for (rp = c->resultsets; rp; rp = rp->next)
-                    if (rp->setname && !strcmp (rp->setname, setname))
-                        break;
-                if (!rp)
-                    break;
-            }
-            r->setname = xstrdup (setname);
-            yaz_log (LOG_DEBUG, "allocating %s", r->setname);
-        }
-        else
-            r->setname = xstrdup ("default");
-        ZOOM_options_set (r->options, "setname", r->setname);
-    }
-    search_req->resultSetName = odr_strdup(c->odr_out, r->setname);
-    /* send search request */
-    send_APDU (c, apdu);
-    return 1;
-}
-
-static void response_diag (ZOOM_connection c, Z_DiagRec *p)
-{
-    Z_DefaultDiagFormat *r;
-    char *addinfo = 0;
-    
-    xfree (c->addinfo);
-    c->addinfo = 0;
-    if (p->which != Z_DiagRec_defaultFormat)
-    {
-       c->error = ZOOM_ERROR_DECODE;
-       return;
-    }
-    r = p->u.defaultFormat;
-    switch (r->which)
-    {
-    case Z_DefaultDiagFormat_v2Addinfo:
-       addinfo = r->u.v2Addinfo;
-       break;
-    case Z_DefaultDiagFormat_v3Addinfo:
-       addinfo = r->u.v3Addinfo;
-       break;
-    }
-    if (addinfo)
-       c->addinfo = xstrdup (addinfo);
-    c->error = *r->condition;
-}
-
-ZOOM_API(ZOOM_record)
-ZOOM_record_clone (ZOOM_record srec)
-{
-    char *buf;
-    int size;
-    ODR odr_enc;
-    ZOOM_record nrec;
-
-    odr_enc = odr_createmem(ODR_ENCODE);
-    if (!z_NamePlusRecord (odr_enc, &srec->npr, 0, 0))
-       return 0;
-    buf = odr_getbuf (odr_enc, &size, 0);
-    
-    nrec = (ZOOM_record) xmalloc (sizeof(*nrec));
-    nrec->odr = odr_createmem(ODR_DECODE);
-    nrec->wrbuf_marc = 0;
-    odr_setbuf (nrec->odr, buf, size, 0);
-    z_NamePlusRecord (nrec->odr, &nrec->npr, 0, 0);
-    
-    odr_destroy (odr_enc);
-    return nrec;
-}
-
-ZOOM_API(ZOOM_record)
-ZOOM_resultset_record_immediate (ZOOM_resultset s,size_t pos)
-{
-    return record_cache_lookup (s, pos);
-}
-
-ZOOM_API(ZOOM_record)
-ZOOM_resultset_record (ZOOM_resultset r, size_t pos)
-{
-    ZOOM_resultset_retrieve (r, 1, pos, 1);
-    return ZOOM_resultset_record_immediate (r, pos);
-}
-
-ZOOM_API(void)
-ZOOM_record_destroy (ZOOM_record rec)
-{
-    if (!rec)
-       return;
-    if (rec->wrbuf_marc)
-       wrbuf_free (rec->wrbuf_marc, 1);
-    odr_destroy (rec->odr);
-    xfree (rec);
-}
-
-ZOOM_API(const char *)
-ZOOM_record_get (ZOOM_record rec, const char *type, int *len)
-{
-    Z_NamePlusRecord *npr;
-    
-    if (len)
-       *len = 0; /* default return */
-       
-    if (!rec)
-       return 0;
-    npr = rec->npr;
-    if (!npr)
-       return 0;
-    if (!strcmp (type, "database"))
-    {
-       if (len)
-            *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
-       return npr->databaseName;
-    }
-    else if (!strcmp (type, "syntax"))
-    {
-       if (npr->which == Z_NamePlusRecord_databaseRecord)
-       {
-           Z_External *r = (Z_External *) npr->u.databaseRecord;
-           oident *ent = oid_getentbyoid(r->direct_reference);
-           if (ent)
-           {
-               if (len)
-                    *len = strlen(ent->desc);
-               return ent->desc;
-           }
-       }
-       return "none";
-    }
-    else if (!strcmp (type, "render") && 
-             npr->which == Z_NamePlusRecord_databaseRecord)
-    {
-        Z_External *r = (Z_External *) npr->u.databaseRecord;
-        oident *ent = oid_getentbyoid(r->direct_reference);
-        
-        if (r->which == Z_External_sutrs)
-        {
-            if (len) *len = r->u.sutrs->len;
-            return (const char *) r->u.sutrs->buf;
-        }
-        else if (r->which == Z_External_octet)
-        {
-            switch (ent->value)
-            {
-            case VAL_SOIF:
-            case VAL_HTML:
-            case VAL_SUTRS:
-                break;
-            case VAL_TEXT_XML:
-            case VAL_APPLICATION_XML:
-                break;
-            default:
-                if (!rec->wrbuf_marc)
-                    rec->wrbuf_marc = wrbuf_alloc();
-                wrbuf_rewind (rec->wrbuf_marc);
-                if (yaz_marc_decode ((const char *)
-                                     r->u.octet_aligned->buf,
-                                     rec->wrbuf_marc, 0,
-                                     r->u.octet_aligned->len,
-                                     0) > 0)
-                {
-                    if (len) *len = wrbuf_len(rec->wrbuf_marc);
-                    return wrbuf_buf(rec->wrbuf_marc);
-                }
-            }
-            if (len) *len = r->u.octet_aligned->len;
-            return (const char *) r->u.octet_aligned->buf;
-        }
-        else if (r->which == Z_External_grs1)
-        {
-            if (len) *len = 5;
-            return "GRS-1";
-        }
-       return 0;
-    }
-    else if (!strcmp (type, "xml") && 
-             npr->which == Z_NamePlusRecord_databaseRecord)
-    {
-        Z_External *r = (Z_External *) npr->u.databaseRecord;
-        oident *ent = oid_getentbyoid(r->direct_reference);
-        
-        if (r->which == Z_External_sutrs)
-        {
-            if (len) *len = r->u.sutrs->len;
-            return (const char *) r->u.sutrs->buf;
-        }
-        else if (r->which == Z_External_octet)
-        {
-            switch (ent->value)
-            {
-            case VAL_SOIF:
-            case VAL_HTML:
-            case VAL_SUTRS:
-                break;
-            case VAL_TEXT_XML:
-            case VAL_APPLICATION_XML:
-                break;
-            default:
-                if (!rec->wrbuf_marc)
-                    rec->wrbuf_marc = wrbuf_alloc();
-                wrbuf_rewind (rec->wrbuf_marc);
-                if (yaz_marc_decode ((const char *)
-                                     r->u.octet_aligned->buf,
-                                     rec->wrbuf_marc, 0,
-                                     r->u.octet_aligned->len,
-                                     1) > 0)
-                {
-                    if (len) *len = wrbuf_len(rec->wrbuf_marc);
-                    return wrbuf_buf(rec->wrbuf_marc);
-                }
-            }
-            if (len) *len = r->u.octet_aligned->len;
-            return (const char *) r->u.octet_aligned->buf;
-        }
-        else if (r->which == Z_External_grs1)
-        {
-            if (len) *len = 5;
-            return "GRS-1";
-        }
-       return 0;
-    }
-    else if (!strcmp (type, "raw"))
-    {
-       if (npr->which == Z_NamePlusRecord_databaseRecord)
-       {
-           Z_External *r = (Z_External *) npr->u.databaseRecord;
-           
-           if (r->which == Z_External_sutrs)
-           {
-               if (len) *len = r->u.sutrs->len;
-               return (const char *) r->u.sutrs->buf;
-           }
-           else if (r->which == Z_External_octet)
-           {
-               if (len) *len = r->u.octet_aligned->len;
-               return (const char *) r->u.octet_aligned->buf;
-           }
-           else /* grs-1, explain, ... */
-           {
-               if (len) *len = -1;
-                return (const char *) npr->u.databaseRecord;
-           }
-       }
-       return 0;
-    }
-    else if (!strcmp (type, "ext"))
-    {
-       if (npr->which == Z_NamePlusRecord_databaseRecord)
-            return (const char *) npr->u.databaseRecord;
-       return 0;
-    }
-    return 0;
-}
-
-static void record_cache_add (ZOOM_resultset r, Z_NamePlusRecord *npr, int pos)
-{
-    ZOOM_record_cache rc;
-    const char *elementSetName =
-        ZOOM_resultset_option_get (r, "elementSetName");
-    const char *syntax = 
-        ZOOM_resultset_option_get (r, "preferredRecordSyntax");
-    
-
-    for (rc = r->record_cache; rc; rc = rc->next)
-    {
-       if (pos == rc->pos)
-       {
-           if ((!elementSetName && !rc->elementSetName)
-               || (elementSetName && rc->elementSetName &&
-                   !strcmp (elementSetName, rc->elementSetName)))
-           {
-                if ((!syntax && !rc->syntax)
-                    || (syntax && rc->syntax &&
-                        !strcmp (syntax, rc->syntax)))
-                {
-                    /* not destroying rc->npr (it's handled by nmem )*/
-                    rc->rec.npr = npr;
-                    /* keeping wrbuf_marc too */
-                    return;
-                }
-           }
-       }
-    }
-    rc = (ZOOM_record_cache) odr_malloc (r->odr, sizeof(*rc));
-    rc->rec.npr = npr; 
-    rc->rec.odr = 0;
-    rc->rec.wrbuf_marc = 0;
-    if (elementSetName)
-       rc->elementSetName = odr_strdup (r->odr, elementSetName);
-    else
-       rc->elementSetName = 0;
-
-    if (syntax)
-       rc->syntax = odr_strdup (r->odr, syntax);
-    else
-       rc->syntax = 0;
-
-    rc->pos = pos;
-    rc->next = r->record_cache;
-    r->record_cache = rc;
-}
-
-static ZOOM_record record_cache_lookup (ZOOM_resultset r, int pos)
-{
-    ZOOM_record_cache rc;
-    const char *elementSetName =
-        ZOOM_resultset_option_get (r, "elementSetName");
-    const char *syntax = 
-        ZOOM_resultset_option_get (r, "preferredRecordSyntax");
-    
-    for (rc = r->record_cache; rc; rc = rc->next)
-    {
-       if (pos == rc->pos)
-       {
-           if ((!elementSetName && !rc->elementSetName)
-               || (elementSetName && rc->elementSetName &&
-                   !strcmp (elementSetName, rc->elementSetName)))
-            {
-                if ((!syntax && !rc->syntax)
-                    || (syntax && rc->syntax &&
-                        !strcmp (syntax, rc->syntax)))
-                    return &rc->rec;
-            }
-       }
-    }
-    return 0;
-}
-                                            
-static void handle_records (ZOOM_connection c, Z_Records *sr,
-                           int present_phase)
-{
-    ZOOM_resultset resultset;
-
-    if (!c->tasks)
-       return ;
-    switch (c->tasks->which)
-    {
-    case ZOOM_TASK_SEARCH:
-        resultset = c->tasks->u.search.resultset;
-        break;
-    case ZOOM_TASK_RETRIEVE:
-        resultset = c->tasks->u.retrieve.resultset;        
-       break;
-    default:
-        return;
-    }
-    if (sr && sr->which == Z_Records_NSD)
-    {
-       Z_DiagRec dr, *dr_p = &dr;
-       dr.which = Z_DiagRec_defaultFormat;
-       dr.u.defaultFormat = sr->u.nonSurrogateDiagnostic;
-       
-       response_diag (c, dr_p);
-    }
-    else if (sr && sr->which == Z_Records_multipleNSD)
-    {
-       if (sr->u.multipleNonSurDiagnostics->num_diagRecs >= 1)
-           response_diag(c, sr->u.multipleNonSurDiagnostics->diagRecs[0]);
-       else
-           c->error = ZOOM_ERROR_DECODE;
-    }
-    else 
-    {
-       if (resultset->count + resultset->start > resultset->size)
-           resultset->count = resultset->size - resultset->start;
-       if (resultset->count < 0)
-           resultset->count = 0;
-       if (sr && sr->which == Z_Records_DBOSD)
-       {
-           int i;
-           NMEM nmem = odr_extract_mem (c->odr_in);
-           Z_NamePlusRecordList *p =
-               sr->u.databaseOrSurDiagnostics;
-           for (i = 0; i<p->num_records; i++)
-           {
-               record_cache_add (resultset, p->records[i],
-                                  i+ resultset->start);
-           }
-           /* transfer our response to search_nmem .. we need it later */
-           nmem_transfer (resultset->odr->mem, nmem);
-           nmem_destroy (nmem);
-           if (present_phase && p->num_records == 0)
-           {
-               /* present response and we didn't get any records! */
-               c->error = ZOOM_ERROR_DECODE;
-           }
-       }
-       else if (present_phase)
-       {
-           /* present response and we didn't get any records! */
-           c->error = ZOOM_ERROR_DECODE;
-       }
-    }
-}
-
-static void handle_present_response (ZOOM_connection c, Z_PresentResponse *pr)
-{
-    handle_records (c, pr->records, 1);
-}
-
-static void handle_search_response (ZOOM_connection c, Z_SearchResponse *sr)
-{
-    ZOOM_resultset resultset;
-
-    yaz_log (LOG_DEBUG, "got search response");
-
-    if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
-       return ;
-
-    resultset = c->tasks->u.search.resultset;
-
-    resultset->size = *sr->resultCount;
-    handle_records (c, sr->records, 0);
-}
-
-static void sort_response (ZOOM_connection c, Z_SortResponse *res)
-{
-    if (res->diagnostics && res->num_diagnostics > 0)
-       response_diag (c, res->diagnostics[0]);
-}
-
-static int scan_response (ZOOM_connection c, Z_ScanResponse *res)
-{
-    NMEM nmem = odr_extract_mem (c->odr_in);
-    ZOOM_scanset scan;
-
-    if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
-        return 0;
-    scan = c->tasks->u.scan.scan;
-
-    if (res->entries && res->entries->nonsurrogateDiagnostics)
-        response_diag(c, res->entries->nonsurrogateDiagnostics[0]);
-    scan->scan_response = res;
-    nmem_transfer (scan->odr->mem, nmem);
-    if (res->stepSize)
-        ZOOM_options_set_int (scan->options, "stepSize", *res->stepSize);
-    if (res->positionOfTerm)
-        ZOOM_options_set_int (scan->options, "position", *res->positionOfTerm);
-    if (res->scanStatus)
-        ZOOM_options_set_int (scan->options, "scanStatus", *res->scanStatus);
-    if (res->numberOfEntriesReturned)
-        ZOOM_options_set_int (scan->options, "number",
-                              *res->numberOfEntriesReturned);
-    nmem_destroy (nmem);
-    return 1;
-}
-
-static int send_sort (ZOOM_connection c)
-{
-    ZOOM_resultset  resultset;
-
-    if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
-       return 0;
-
-    resultset = c->tasks->u.search.resultset;
-
-    if (c->error)
-    {
-       resultset->r_sort_spec = 0;
-       return 0;
-    }
-    if (resultset->r_sort_spec)
-    {
-       Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_sortRequest);
-       Z_SortRequest *req = apdu->u.sortRequest;
-       
-       req->num_inputResultSetNames = 1;
-       req->inputResultSetNames = (Z_InternationalString **)
-           odr_malloc (c->odr_out, sizeof(*req->inputResultSetNames));
-       req->inputResultSetNames[0] =
-            odr_strdup (c->odr_out, resultset->setname);
-       req->sortedResultSetName = odr_strdup (c->odr_out, resultset->setname);
-       req->sortSequence = resultset->r_sort_spec;
-       resultset->r_sort_spec = 0;
-       send_APDU (c, apdu);
-       return 1;
-    }
-    return 0;
-}
-
-static int send_present (ZOOM_connection c)
-{
-    Z_APDU *apdu = 0;
-    Z_PresentRequest *req = 0;
-    int i = 0;
-    const char *syntax = 0;
-    const char *elementSetName = 0;
-    const char *schema = 0;
-    ZOOM_resultset  resultset;
-
-    if (!c->tasks)
-       return 0;
-
-    switch (c->tasks->which)
-    {
-    case ZOOM_TASK_SEARCH:
-        resultset = c->tasks->u.search.resultset;
-        break;
-    case ZOOM_TASK_RETRIEVE:
-        resultset = c->tasks->u.retrieve.resultset;
-        resultset->start = c->tasks->u.retrieve.start;
-        resultset->count = c->tasks->u.retrieve.count;
-
-        if (resultset->start >= resultset->size)
-            return 0;
-        if (resultset->start + resultset->count > resultset->size)
-            resultset->count = resultset->size - resultset->start;
-       break;
-    default:
-        return 0;
-    }
-
-    syntax = ZOOM_resultset_option_get (resultset, "preferredRecordSyntax");
-    elementSetName = ZOOM_resultset_option_get (resultset, "elementSetName");
-    schema = ZOOM_resultset_option_get (resultset, "schema");
-
-    if (c->error)                  /* don't continue on error */
-       return 0;
-    if (resultset->start < 0)
-       return 0;
-    for (i = 0; i<resultset->count; i++)
-    {
-       ZOOM_record rec =
-           record_cache_lookup (resultset, i + resultset->start);
-       if (!rec)
-           break;
-    }
-    if (i == resultset->count)
-       return 0;
-
-    apdu = zget_APDU(c->odr_out, Z_APDU_presentRequest);
-    req = apdu->u.presentRequest;
-
-    resultset->start += i;
-    resultset->count -= i;
-    *req->resultSetStartPoint = resultset->start + 1;
-    *req->numberOfRecordsRequested = resultset->count;
-    assert (*req->numberOfRecordsRequested > 0);
-
-    if (syntax && *syntax)
-       req->preferredRecordSyntax =
-           yaz_str_to_z3950oid (c->odr_out, CLASS_RECSYN, syntax);
-
-    if (schema && *schema)
-    {
-       Z_RecordComposition *compo = (Z_RecordComposition *)
-            odr_malloc (c->odr_out, sizeof(*compo));
-
-        req->recordComposition = compo;
-        compo->which = Z_RecordComp_complex;
-        compo->u.complex = (Z_CompSpec *)
-            odr_malloc(c->odr_out, sizeof(*compo->u.complex));
-        compo->u.complex->selectAlternativeSyntax = (bool_t *) 
-            odr_malloc(c->odr_out, sizeof(bool_t));
-        *compo->u.complex->selectAlternativeSyntax = 0;
-
-        compo->u.complex->generic = (Z_Specification *)
-            odr_malloc(c->odr_out, sizeof(*compo->u.complex->generic));
-
-        compo->u.complex->generic->schema = (Odr_oid *)
-            yaz_str_to_z3950oid (c->odr_out, CLASS_SCHEMA, schema);
-
-        if (!compo->u.complex->generic->schema)
-        {
-            /* OID wasn't a schema! Try record syntax instead. */
-
-            compo->u.complex->generic->schema = (Odr_oid *)
-                yaz_str_to_z3950oid (c->odr_out, CLASS_RECSYN, schema);
-        }
-        if (elementSetName && *elementSetName)
-        {
-            compo->u.complex->generic->elementSpec = (Z_ElementSpec *)
-                odr_malloc(c->odr_out, sizeof(Z_ElementSpec));
-            compo->u.complex->generic->elementSpec->which =
-                Z_ElementSpec_elementSetName;
-            compo->u.complex->generic->elementSpec->u.elementSetName =
-                odr_strdup (c->odr_out, elementSetName);
-        }
-        else
-            compo->u.complex->generic->elementSpec = 0;
-        compo->u.complex->num_dbSpecific = 0;
-        compo->u.complex->dbSpecific = 0;
-        compo->u.complex->num_recordSyntax = 0;
-        compo->u.complex->recordSyntax = 0;
-    }
-    else if (elementSetName && *elementSetName)
-    {
-       Z_ElementSetNames *esn = (Z_ElementSetNames *)
-            odr_malloc (c->odr_out, sizeof(*esn));
-       Z_RecordComposition *compo = (Z_RecordComposition *)
-            odr_malloc (c->odr_out, sizeof(*compo));
-       
-       esn->which = Z_ElementSetNames_generic;
-       esn->u.generic = odr_strdup (c->odr_out, elementSetName);
-       compo->which = Z_RecordComp_simple;
-       compo->u.simple = esn;
-       req->recordComposition = compo;
-    }
-    req->resultSetId = odr_strdup(c->odr_out, resultset->setname);
-    send_APDU (c, apdu);
-    return 1;
-}
-
-ZOOM_API(ZOOM_scanset)
-ZOOM_connection_scan (ZOOM_connection c, const char *start)
-{
-    ZOOM_scanset scan = (ZOOM_scanset) xmalloc (sizeof(*scan));
-
-    scan->connection = c;
-    scan->odr = odr_createmem (ODR_DECODE);
-    scan->options = ZOOM_options_create_with_parent (c->options);
-    scan->refcount = 1;
-    scan->scan_response = 0;
-
-    if ((scan->termListAndStartPoint =
-         p_query_scan(scan->odr, PROTO_Z3950, &scan->attributeSet,
-                      start)))
-    {
-        ZOOM_task task = ZOOM_connection_add_task (c, ZOOM_TASK_SCAN);
-        task->u.scan.scan = scan;
-        
-        (scan->refcount)++;
-        if (!c->async)
-        {
-            while (ZOOM_event (1, &c))
-                ;
-        }
-    }
-    return scan;
-}
-
-ZOOM_API(void)
-ZOOM_scanset_destroy (ZOOM_scanset scan)
-{
-    if (!scan)
-        return;
-    (scan->refcount)--;
-    if (scan->refcount == 0)
-    {
-        odr_destroy (scan->odr);
-        
-        ZOOM_options_destroy (scan->options);
-        xfree (scan);
-    }
-}
-
-static int send_package (ZOOM_connection c)
-{
-    ZOOM_Event event;
-    if (!c->tasks)
-        return 0;
-    assert (c->tasks->which == ZOOM_TASK_PACKAGE);
-
-    event = ZOOM_Event_create (ZOOM_EVENT_SEND_APDU);
-    ZOOM_connection_put_event (c, event);
-
-    do_write_ex (c, c->tasks->u.package->buf_out,
-                 c->tasks->u.package->len_out);
-    return 1;
-}
-
-static int send_scan (ZOOM_connection c)
-{
-    ZOOM_scanset scan;
-    Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_scanRequest);
-    Z_ScanRequest *req = apdu->u.scanRequest;
-    if (!c->tasks)
-        return 0;
-    assert (c->tasks->which == ZOOM_TASK_SCAN);
-    scan = c->tasks->u.scan.scan;
-
-    req->termListAndStartPoint = scan->termListAndStartPoint;
-    req->attributeSet = scan->attributeSet;
-
-    *req->numberOfTermsRequested =
-        ZOOM_options_get_int(scan->options, "number", 10);
-
-    req->preferredPositionInResponse =
-        odr_intdup (c->odr_out,
-                    ZOOM_options_get_int(scan->options, "position", 1));
-
-    req->stepSize =
-        odr_intdup (c->odr_out,
-                    ZOOM_options_get_int(scan->options, "stepSize", 0));
-    
-    req->databaseNames = set_DatabaseNames (c, scan->options, 
-                                            &req->num_databaseNames);
-
-    send_APDU (c, apdu);
-
-    return 1;
-}
-
-ZOOM_API(size_t)
-ZOOM_scanset_size (ZOOM_scanset scan)
-{
-    if (!scan || !scan->scan_response || !scan->scan_response->entries)
-        return 0;
-    return scan->scan_response->entries->num_entries;
-}
-
-ZOOM_API(const char *)
-ZOOM_scanset_term (ZOOM_scanset scan, size_t pos,
-                               int *occ, int *len)
-{
-    const char *term = 0;
-    size_t noent = ZOOM_scanset_size (scan);
-    Z_ScanResponse *res = scan->scan_response;
-    
-    *len = 0;
-    *occ = 0;
-    if (pos >= noent)
-        return 0;
-    if (res->entries->entries[pos]->which == Z_Entry_termInfo)
-    {
-        Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
-        
-        if (t->term->which == Z_Term_general)
-        {
-            term = (const char *) t->term->u.general->buf;
-            *len = t->term->u.general->len;
-        }
-        *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
-    }
-    return term;
-}
-
-ZOOM_API(const char *)
-ZOOM_scanset_option_get (ZOOM_scanset scan, const char *key)
-{
-    return ZOOM_options_get (scan->options, key);
-}
-
-ZOOM_API(void)
-ZOOM_scanset_option_set (ZOOM_scanset scan, const char *key,
-                              const char *val)
-{
-    ZOOM_options_set (scan->options, key, val);
-}
-
-
-
-static Z_APDU *create_es_package (ZOOM_package p, int type)
-{
-    const char *str;
-    Z_APDU *apdu = zget_APDU(p->odr_out, Z_APDU_extendedServicesRequest);
-    Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
-    
-    *req->function = Z_ExtendedServicesRequest_create;
-    
-    str = ZOOM_options_get(p->options, "package-name");
-    if (str && *str)
-        req->packageName = nmem_strdup (p->odr_out->mem, str);
-    
-    str = ZOOM_options_get(p->options, "user-id");
-    if (str)
-        req->userId = nmem_strdup (p->odr_out->mem, str);
-    
-    req->packageType = yaz_oidval_to_z3950oid(p->odr_out, CLASS_EXTSERV,
-                                              type);
-
-    str = ZOOM_options_get(p->options, "function");
-    if (str)
-    {
-        if (!strcmp (str, "create"))
-            *req->function = 1;
-        if (!strcmp (str, "delete"))
-            *req->function = 2;
-        if (!strcmp (str, "modify"))
-            *req->function = 3;
-    }
-    return apdu;
-}
-
-static const char *ill_array_lookup (void *clientData, const char *idx)
-{
-    ZOOM_package p = (ZOOM_package) clientData;
-    return ZOOM_options_get (p->options, idx+4);
-}
-
-static Z_External *encode_ill_request (ZOOM_package p)
-{
-    ODR out = p->odr_out;
-    ILL_Request *req;
-    Z_External *r = 0;
-    struct ill_get_ctl ctl;
-       
-    ctl.odr = p->odr_out;
-    ctl.clientData = p;
-    ctl.f = ill_array_lookup;
-       
-    req = ill_get_ILLRequest(&ctl, "ill", 0);
-       
-    if (!ill_Request (out, &req, 0, 0))
-    {
-        int ill_request_size;
-        char *ill_request_buf = odr_getbuf (out, &ill_request_size, 0);
-        if (ill_request_buf)
-            odr_setbuf (out, ill_request_buf, ill_request_size, 1);
-        return 0;
-    }
-    else
-    {
-        oident oid;
-        int illRequest_size = 0;
-        char *illRequest_buf = odr_getbuf (out, &illRequest_size, 0);
-               
-        oid.proto = PROTO_GENERAL;
-        oid.oclass = CLASS_GENERAL;
-        oid.value = VAL_ISO_ILL_1;
-               
-        r = (Z_External *) odr_malloc (out, sizeof(*r));
-        r->direct_reference = odr_oiddup(out,oid_getoidbyent(&oid)); 
-        r->indirect_reference = 0;
-        r->descriptor = 0;
-        r->which = Z_External_single;
-               
-        r->u.single_ASN1_type = (Odr_oct *)
-            odr_malloc (out, sizeof(*r->u.single_ASN1_type));
-        r->u.single_ASN1_type->buf = odr_malloc (out, illRequest_size);
-        r->u.single_ASN1_type->len = illRequest_size;
-        r->u.single_ASN1_type->size = illRequest_size;
-        memcpy (r->u.single_ASN1_type->buf, illRequest_buf, illRequest_size);
-    }
-    return r;
-}
-
-static Z_ItemOrder *encode_item_order(ZOOM_package p)
-{
-    Z_ItemOrder *req = odr_malloc (p->odr_out, sizeof(*req));
-    const char *str;
-    
-    req->which=Z_IOItemOrder_esRequest;
-    req->u.esRequest = (Z_IORequest *) 
-        odr_malloc(p->odr_out,sizeof(Z_IORequest));
-
-    /* to keep part ... */
-    req->u.esRequest->toKeep = (Z_IOOriginPartToKeep *)
-       odr_malloc(p->odr_out,sizeof(Z_IOOriginPartToKeep));
-    req->u.esRequest->toKeep->supplDescription = 0;
-    req->u.esRequest->toKeep->contact =
-        odr_malloc (p->odr_out, sizeof(*req->u.esRequest->toKeep->contact));
-       
-    str = ZOOM_options_get(p->options, "contact-name");
-    req->u.esRequest->toKeep->contact->name = str ?
-        nmem_strdup (p->odr_out->mem, str) : 0;
-       
-    str = ZOOM_options_get(p->options, "contact-phone");
-    req->u.esRequest->toKeep->contact->phone = str ?
-        nmem_strdup (p->odr_out->mem, str) : 0;
-       
-    str = ZOOM_options_get(p->options, "contact-email");
-    req->u.esRequest->toKeep->contact->email = str ?
-        nmem_strdup (p->odr_out->mem, str) : 0;
-       
-    req->u.esRequest->toKeep->addlBilling = 0;
-       
-    /* not to keep part ... */
-    req->u.esRequest->notToKeep = (Z_IOOriginPartNotToKeep *)
-        odr_malloc(p->odr_out,sizeof(Z_IOOriginPartNotToKeep));
-       
-    req->u.esRequest->notToKeep->resultSetItem = (Z_IOResultSetItem *)
-        odr_malloc(p->odr_out, sizeof(Z_IOResultSetItem));
-
-    str = ZOOM_options_get(p->options, "itemorder-setname");
-    if (!str)
-        str = "default";
-    req->u.esRequest->notToKeep->resultSetItem->resultSetId =
-        nmem_strdup (p->odr_out->mem, str);
-    req->u.esRequest->notToKeep->resultSetItem->item =
-        (int *) odr_malloc(p->odr_out, sizeof(int));
-       
-    str = ZOOM_options_get(p->options, "itemorder-item");
-    *req->u.esRequest->notToKeep->resultSetItem->item =
-        (str ? atoi(str) : 1);
-    
-    req->u.esRequest->notToKeep->itemRequest = encode_ill_request(p);
-    
-    return req;
-}
-
-ZOOM_API(void)
-    ZOOM_package_send (ZOOM_package p, const char *type)
-{
-    Z_APDU *apdu = 0;
-    ZOOM_connection c;
-    if (!p)
-        return;
-    c = p->connection;
-    odr_reset (p->odr_out);
-    xfree (p->buf_out);
-    p->buf_out = 0;
-    if (!strcmp(type, "itemorder"))
-    {
-        Z_External *r;
-        apdu = create_es_package (p, VAL_ITEMORDER);
-        if (apdu)
-        {
-            r = odr_malloc (p->odr_out, sizeof(*r));
-            
-            r->direct_reference =
-                yaz_oidval_to_z3950oid(p->odr_out, CLASS_EXTSERV,
-                                       VAL_ITEMORDER);
-            r->descriptor = 0;
-            r->which = Z_External_itemOrder;
-            r->indirect_reference = 0;
-            r->u.itemOrder = encode_item_order (p);
-
-            apdu->u.extendedServicesRequest->taskSpecificParameters = r;
-        }
-    }
-    if (apdu)
-    {
-        if (encode_APDU(p->connection, apdu, p->odr_out) == 0)
-        {
-            char *buf;
-
-            ZOOM_task task = ZOOM_connection_add_task (c, ZOOM_TASK_PACKAGE);
-            task->u.package = p;
-            buf = odr_getbuf(p->odr_out, &p->len_out, 0);
-            p->buf_out = xmalloc (p->len_out);
-            memcpy (p->buf_out, buf, p->len_out);
-            
-            (p->refcount)++;
-            if (!c->async)
-            {
-                while (ZOOM_event (1, &c))
-                    ;
-            }
-        }
-    }
-}
-
-ZOOM_API(ZOOM_package)
-    ZOOM_connection_package (ZOOM_connection c, ZOOM_options options)
-{
-    ZOOM_package p = (ZOOM_package) xmalloc (sizeof(*p));
-
-    p->connection = c;
-    p->odr_out = odr_createmem (ODR_ENCODE);
-    p->options = ZOOM_options_create_with_parent2 (options, c->options);
-    p->refcount = 1;
-    p->buf_out = 0;
-    p->len_out = 0;
-    return p;
-}
-
-ZOOM_API(void)
-    ZOOM_package_destroy(ZOOM_package p)
-{
-    if (!p)
-        return;
-    (p->refcount)--;
-    if (p->refcount == 0)
-    {
-        odr_destroy (p->odr_out);
-        xfree (p->buf_out);
-        
-        ZOOM_options_destroy (p->options);
-        xfree (p);
-    }
-}
-
-ZOOM_API(const char *)
-ZOOM_package_option_get (ZOOM_package p, const char *key)
-{
-    return ZOOM_options_get (p->options, key);
-}
-
-ZOOM_API(void)
-ZOOM_package_option_set (ZOOM_package p, const char *key,
-                              const char *val)
-{
-    ZOOM_options_set (p->options, key, val);
-}
-
-static int ZOOM_connection_exec_task (ZOOM_connection c)
-{
-    ZOOM_task task = c->tasks;
-
-    yaz_log (LOG_DEBUG, "ZOOM_connection_exec_task");
-    if (!task)
-       return 0;
-    if (c->error != ZOOM_ERROR_NONE ||
-        (!c->cs && task->which != ZOOM_TASK_CONNECT))
-    {
-       ZOOM_connection_remove_tasks (c);
-       return 0;
-    }
-    yaz_log (LOG_DEBUG, "ZOOM_connection_exec_task type=%d run=%d",
-             task->which, task->running);
-    if (task->running)
-       return 0;
-    task->running = 1;
-    switch (task->which)
-    {
-    case ZOOM_TASK_SEARCH:
-       /* see if search hasn't been sent yet. */
-       if (ZOOM_connection_send_search (c))
-           return 1;
-       break;
-    case ZOOM_TASK_RETRIEVE:
-       if (send_present (c))
-           return 1;
-       break;
-    case ZOOM_TASK_CONNECT:
-        if (do_connect(c))
-            return 1;
-        break;
-    case ZOOM_TASK_SCAN:
-        if (send_scan(c))
-            return 1;
-        break;
-    case ZOOM_TASK_PACKAGE:
-        if (send_package(c))
-            return 1;
-    }
-    ZOOM_connection_remove_task (c);
-    return 0;
-}
-
-static int send_sort_present (ZOOM_connection c)
-{
-    int r = send_sort (c);
-    if (!r)
-       r = send_present (c);
-    return r;
-}
-
-static int es_response (ZOOM_connection c,
-                        Z_ExtendedServicesResponse *res)
-{
-    if (!c->tasks || c->tasks->which != ZOOM_TASK_PACKAGE)
-        return 0;
-    if (res->diagnostics && res->num_diagnostics > 0)
-        response_diag(c, res->diagnostics[0]);
-    if (res->taskPackage &&
-        res->taskPackage->which == Z_External_extendedService)
-    {
-        Z_TaskPackage *taskPackage = res->taskPackage->u.extendedService;
-        Odr_oct *id = taskPackage->targetReference;
-        
-        if (id)
-            ZOOM_options_setl (c->tasks->u.package->options,
-                               "targetReference", id->buf, id->len);
-    }
-    return 1;
-}
-
-
-static void handle_apdu (ZOOM_connection c, Z_APDU *apdu)
-{
-    Z_InitResponse *initrs;
-    
-    c->mask = 0;
-    yaz_log (LOG_DEBUG, "hande_apdu type=%d", apdu->which);
-    switch(apdu->which)
-    {
-    case Z_APDU_initResponse:
-       initrs = apdu->u.initResponse;
-       if (!*initrs->result)
-       {
-           c->error = ZOOM_ERROR_INIT;
-       }
-       else
-       {
-           char *cookie =
-               yaz_oi_get_string_oidval (&apdu->u.initResponse->otherInfo,
-                                         VAL_COOKIE, 1, 0);
-           xfree (c->cookie_in);
-           c->cookie_in = 0;
-           if (cookie)
-               c->cookie_in = xstrdup(cookie);
-            if (ODR_MASK_GET(initrs->options, Z_Options_namedResultSets) &&
-                ODR_MASK_GET(initrs->protocolVersion, Z_ProtocolVersion_3))
-                c->support_named_resultsets = 1;
-            if (c->tasks)
-            {
-                assert (c->tasks->which == ZOOM_TASK_CONNECT);
-                ZOOM_connection_remove_task (c);
-            }
-           ZOOM_connection_exec_task (c);
-       }
-       if (ODR_MASK_GET(initrs->options, Z_Options_negotiationModel))
-       {
-            NMEM tmpmem = nmem_create();
-            Z_CharSetandLanguageNegotiation *p =
-                yaz_get_charneg_record(initrs->otherInfo);
-            
-            if (p)
-            {
-                char *charset=NULL, *lang=NULL;
-                int selected;
-                
-                yaz_get_response_charneg(tmpmem, p, &charset, &lang, &selected);
-                yaz_log(LOG_DEBUG, "Target accepted: charset - %s,"
-                        "language - %s, select - %d",
-                        charset, lang, selected);
-                
-                nmem_destroy(tmpmem);
-            }
-       }       
-       break;
-    case Z_APDU_searchResponse:
-       handle_search_response (c, apdu->u.searchResponse);
-       if (!send_sort_present (c))
-           ZOOM_connection_remove_task (c);
-       break;
-    case Z_APDU_presentResponse:
-       handle_present_response (c, apdu->u.presentResponse);
-       if (!send_present (c))
-           ZOOM_connection_remove_task (c);
-       break;
-    case Z_APDU_sortResponse:
-       sort_response (c, apdu->u.sortResponse);
-       if (!send_present (c))
-           ZOOM_connection_remove_task (c);
-        break;
-    case Z_APDU_scanResponse:
-        scan_response (c, apdu->u.scanResponse);
-        ZOOM_connection_remove_task (c);
-        break;
-    case Z_APDU_extendedServicesResponse:
-        es_response (c, apdu->u.extendedServicesResponse);
-        ZOOM_connection_remove_task (c);
-        break;
-    case Z_APDU_close:
-        if (c->reconnect_ok)
-        {
-            do_close(c);
-            c->tasks->running = 0;
-            ZOOM_connection_insert_task (c, ZOOM_TASK_CONNECT);
-        }
-        else
-        {
-            c->error = ZOOM_ERROR_CONNECTION_LOST;
-            do_close(c);
-        }
-        break;
-    default:
-        c->error = ZOOM_ERROR_DECODE;
-        do_close(c);
-    }
-}
-
-static int do_read (ZOOM_connection c)
-{
-    int r;
-    Z_APDU *apdu;
-    ZOOM_Event event;
-    
-    event = ZOOM_Event_create (ZOOM_EVENT_RECV_DATA);
-    ZOOM_connection_put_event (c, event);
-    
-    yaz_log (LOG_DEBUG, "do_read len=%d", c->len_in);
-
-    r = cs_get (c->cs, &c->buf_in, &c->len_in);
-    if (r == 1)
-       return 0;
-    if (r <= 0)
-    {
-        if (c->reconnect_ok)
-        {
-            do_close (c);
-            c->reconnect_ok = 0;
-            yaz_log (LOG_DEBUG, "reconnect read");
-            c->tasks->running = 0;
-            ZOOM_connection_insert_task (c, ZOOM_TASK_CONNECT);
-        }
-        else
-        {
-            c->error= ZOOM_ERROR_CONNECTION_LOST;
-            do_close (c);
-        }
-    }
-    else
-    {
-        ZOOM_Event event;
-       odr_reset (c->odr_in);
-       odr_setbuf (c->odr_in, c->buf_in, r, 0);
-        event = ZOOM_Event_create (ZOOM_EVENT_RECV_APDU);
-        ZOOM_connection_put_event (c, event);
-       if (!z_APDU (c->odr_in, &apdu, 0, 0))
-       {
-           c->error = ZOOM_ERROR_DECODE;
-           do_close (c);
-       }
-       else
-           handle_apdu (c, apdu);
-        c->reconnect_ok = 0;
-    }
-    return 1;
-}
-
-static int do_write_ex (ZOOM_connection c, char *buf_out, int len_out)
-{
-    int r;
-    ZOOM_Event event;
-    
-    event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
-    ZOOM_connection_put_event (c, event);
-
-    yaz_log (LOG_DEBUG, "do_write_ex len=%d", len_out);
-    if ((r=cs_put (c->cs, buf_out, len_out)) < 0)
-    {
-        if (c->reconnect_ok)
-        {
-            do_close (c);
-            c->reconnect_ok = 0;
-            yaz_log (LOG_DEBUG, "reconnect write");
-            c->tasks->running = 0;
-            ZOOM_connection_insert_task (c, ZOOM_TASK_CONNECT);
-            return 0;
-        }
-       if (c->state == STATE_CONNECTING)
-           c->error = ZOOM_ERROR_CONNECT;
-       else
-           c->error = ZOOM_ERROR_CONNECTION_LOST;
-       do_close (c);
-       return 1;
-    }
-    else if (r == 1)
-    {    
-        c->mask = ZOOM_SELECT_EXCEPT;
-        if (c->cs->io_pending & CS_WANT_WRITE)
-            c->mask += ZOOM_SELECT_WRITE;
-        if (c->cs->io_pending & CS_WANT_READ)
-            c->mask += ZOOM_SELECT_READ;
-        yaz_log (LOG_DEBUG, "do_write_ex 1 mask=%d", c->mask);
-    }
-    else
-    {
-        // c->reconnect_ok = 0;
-        c->mask = ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT;
-        yaz_log (LOG_DEBUG, "do_write_ex 2 mask=%d", c->mask);
-    }
-    return 0;
-}
-
-static int do_write(ZOOM_connection c)
-{
-    return do_write_ex (c, c->buf_out, c->len_out);
-}
-
-
-ZOOM_API(const char *)
-ZOOM_connection_option_get (ZOOM_connection c, const char *key)
-{
-    return ZOOM_options_get (c->options, key);
-}
-
-ZOOM_API(void)
-ZOOM_connection_option_set (ZOOM_connection c, const char *key,
-                                  const char *val)
-{
-    ZOOM_options_set (c->options, key, val);
-}
-
-ZOOM_API(const char *)
-ZOOM_resultset_option_get (ZOOM_resultset r, const char *key)
-{
-    return ZOOM_options_get (r->options, key);
-}
-
-ZOOM_API(void)
-ZOOM_resultset_option_set (ZOOM_resultset r, const char *key,
-                                  const char *val)
-{
-    ZOOM_options_set (r->options, key, val);
-}
-
-
-ZOOM_API(int)
-ZOOM_connection_errcode (ZOOM_connection c)
-{
-    return ZOOM_connection_error (c, 0, 0);
-}
-
-ZOOM_API(const char *)
-ZOOM_connection_errmsg (ZOOM_connection c)
-{
-    const char *msg;
-    ZOOM_connection_error (c, &msg, 0);
-    return msg;
-}
-
-ZOOM_API(const char *)
-ZOOM_connection_addinfo (ZOOM_connection c)
-{
-    const char *addinfo;
-    ZOOM_connection_error (c, 0, &addinfo);
-    return addinfo;
-}
-
-ZOOM_API(int)
-ZOOM_connection_error (ZOOM_connection c, const char **cp,
-                           const char **addinfo)
-{
-    int error = c->error;
-    if (cp)
-    {
-       switch (error)
-       {
-       case ZOOM_ERROR_NONE:
-           *cp = "No error"; break;
-       case ZOOM_ERROR_CONNECT:
-           *cp = "Connect failed"; break;
-       case ZOOM_ERROR_MEMORY:
-           *cp = "Out of memory"; break;
-       case ZOOM_ERROR_ENCODE:
-           *cp = "Encoding failed"; break;
-       case ZOOM_ERROR_DECODE:
-           *cp = "Decoding failed"; break;
-       case ZOOM_ERROR_CONNECTION_LOST:
-           *cp = "Connection lost"; break;
-       case ZOOM_ERROR_INIT:
-           *cp = "Init rejected"; break;
-       case ZOOM_ERROR_INTERNAL:
-           *cp = "Internal failure"; break;
-       case ZOOM_ERROR_TIMEOUT:
-           *cp = "Timeout"; break;
-       default:
-           *cp = diagbib1_str (error);
-       }
-    }
-    if (addinfo)
-    {
-       if (c->addinfo)
-           *addinfo = c->addinfo;
-       else
-           *addinfo = "";
-    }
-    return c->error;
-}
-
-static int ZOOM_connection_do_io(ZOOM_connection c, int mask)
-{
-    ZOOM_Event event = 0;
-    int r = cs_look(c->cs);
-    yaz_log (LOG_DEBUG, "ZOOM_connection_do_io c=%p mask=%d cs_look=%d",
-            c, mask, r);
-    
-    if (r == CS_NONE)
-    {
-        event = ZOOM_Event_create (ZOOM_EVENT_CONNECT);
-       c->error = ZOOM_ERROR_CONNECT;
-       do_close (c);
-        ZOOM_connection_put_event (c, event);
-    }
-    else if (r == CS_CONNECT)
-    {
-        int ret;
-        event = ZOOM_Event_create (ZOOM_EVENT_CONNECT);
-
-        ret = cs_rcvconnect (c->cs);
-        yaz_log (LOG_DEBUG, "cs_rcvconnect returned %d", ret);
-        if (ret == 1)
-        {
-            c->mask = ZOOM_SELECT_EXCEPT;
-            if (c->cs->io_pending & CS_WANT_WRITE)
-                c->mask += ZOOM_SELECT_WRITE;
-            if (c->cs->io_pending & CS_WANT_READ)
-                c->mask += ZOOM_SELECT_READ;
-            ZOOM_connection_put_event (c, event);
-        }
-        else if (ret == 0)
-        {
-            ZOOM_connection_put_event (c, event);
-            ZOOM_connection_send_init (c);
-            c->state = STATE_ESTABLISHED;
-        }
-        else
-        {
-            c->error = ZOOM_ERROR_CONNECT;
-            do_close (c);
-            ZOOM_connection_put_event (c, event);
-        }
-    }
-    else
-    {
-        if (mask & ZOOM_SELECT_READ)
-            do_read (c);
-        if (c->cs && (mask & ZOOM_SELECT_WRITE))
-            do_write (c);
-    }
-    return 1;
-}
-
-ZOOM_API(int)
-ZOOM_connection_last_event(ZOOM_connection cs)
-{
-    if (!cs)
-        return ZOOM_EVENT_NONE;
-    return cs->last_event;
-}
-
-ZOOM_API(int)
-ZOOM_event (int no, ZOOM_connection *cs)
-{
-    int timeout = 5000;
-#if HAVE_SYS_POLL_H
-    struct pollfd pollfds[1024];
-    ZOOM_connection poll_cs[1024];
-#else
-    struct timeval tv;
-    fd_set input, output, except;
-#endif
-    int i, r, nfds;
-    int max_fd = 0;
-
-    for (i = 0; i<no; i++)
-    {
-       ZOOM_connection c = cs[i];
-        ZOOM_Event event;
-       if (c && (event = ZOOM_connection_get_event(c)))
-        {
-            ZOOM_Event_destroy (event);
-           return i+1;
-        }
-    }
-    for (i = 0; i<no; i++)
-    {
-        ZOOM_connection c = cs[i];
-        ZOOM_Event event;
-        if (c && ZOOM_connection_exec_task (c))
-        {
-            if ((event = ZOOM_connection_get_event(c)))
-            {
-                ZOOM_Event_destroy (event);
-                return i+1;
-            }
-        }
-    }
-#if HAVE_SYS_POLL_H
-
-#else
-    FD_ZERO (&input);
-    FD_ZERO (&output);
-    FD_ZERO (&except);
-#endif
-    nfds = 0;
-    for (i = 0; i<no; i++)
-    {
-       ZOOM_connection c = cs[i];
-       int fd, mask;
-        int this_timeout;
-       
-       if (!c)
-           continue;
-       fd = z3950_connection_socket(c);
-       mask = z3950_connection_mask(c);
-
-       if (fd == -1)
-           continue;
-       if (max_fd < fd)
-           max_fd = fd;
-
-        this_timeout = ZOOM_options_get_int (c->options, "timeout", -1);
-        if (this_timeout != -1 && this_timeout < timeout)
-            timeout = this_timeout;
-#if HAVE_SYS_POLL_H
-        if (mask)
-        {
-            short poll_events = 0;
-
-            if (mask & ZOOM_SELECT_READ)
-                poll_events += POLLIN;
-            if (mask & ZOOM_SELECT_WRITE)
-                poll_events += POLLOUT;
-            if (mask & ZOOM_SELECT_EXCEPT)
-                poll_events += POLLERR;
-            pollfds[nfds].fd = fd;
-            pollfds[nfds].events = poll_events;
-            pollfds[nfds].revents = 0;
-            poll_cs[nfds] = c;
-            nfds++;
-        }
-#else
-       if (mask & ZOOM_SELECT_READ)
-       {
-           FD_SET (fd, &input);
-           nfds++;
-       }
-       if (mask & ZOOM_SELECT_WRITE)
-       {
-           FD_SET (fd, &output);
-           nfds++;
-       }
-       if (mask & ZOOM_SELECT_EXCEPT)
-       {
-           FD_SET (fd, &except);
-           nfds++;
-       }
-#endif
-    }
-    if (timeout >= 5000)
-        timeout = 30;
-
-    if (!nfds)
-        return 0;
-
-#if HAVE_SYS_POLL_H
-    r = poll (pollfds, nfds, timeout * 1000);
-    for (i = 0; i<nfds; i++)
-    {
-        ZOOM_connection c = poll_cs[i];
-        if (r && c->mask)
-        {
-            int mask = 0;
-            if (pollfds[i].revents & POLLIN)
-                mask += ZOOM_SELECT_READ;
-            if (pollfds[i].revents & POLLOUT)
-                mask += ZOOM_SELECT_WRITE;
-            if (pollfds[i].revents & POLLERR)
-                mask += ZOOM_SELECT_EXCEPT;
-            if (mask)
-                ZOOM_connection_do_io(c, mask);
-        }
-        else if (r == 0 && c->mask)
-        {
-            ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
-           /* timeout and this connection was waiting */
-           c->error = ZOOM_ERROR_TIMEOUT;
-            do_close (c);
-            ZOOM_connection_put_event(c, event);
-        }
-    }
-#else
-    tv.tv_sec = timeout;
-    tv.tv_usec = 0;
-    yaz_log (LOG_DEBUG, "select start");
-    r = select (max_fd+1, &input, &output, &except, &tv);
-    yaz_log (LOG_DEBUG, "select stop, returned r=%d", r);
-    for (i = 0; i<no; i++)
-    {
-       ZOOM_connection c = cs[i];
-       int fd, mask;
-
-       if (!c)
-           continue;
-       fd = z3950_connection_socket(c);
-       mask = 0;
-       if (r && c->mask)
-       {
-           /* no timeout and real socket */
-           if (FD_ISSET(fd, &input))
-               mask += ZOOM_SELECT_READ;
-           if (FD_ISSET(fd, &output))
-               mask += ZOOM_SELECT_WRITE;
-           if (FD_ISSET(fd, &except))
-               mask += ZOOM_SELECT_EXCEPT;
-           if (mask)
-               ZOOM_connection_do_io(c, mask);
-       }
-       if (r == 0 && c->mask)
-       {
-            ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
-           /* timeout and this connection was waiting */
-           c->error = ZOOM_ERROR_TIMEOUT;
-            do_close (c);
-            yaz_log (LOG_DEBUG, "timeout");
-            ZOOM_connection_put_event(c, event);
-       }
-    }
-#endif
-    for (i = 0; i<no; i++)
-    {
-       ZOOM_connection c = cs[i];
-        ZOOM_Event event;
-       if (c && (event = ZOOM_connection_get_event(c)))
-        {
-            ZOOM_Event_destroy (event);
-           return i+1;
-        }
-    }
-    return 0;
-}
diff --git a/zoom/zoom-opt.c b/zoom/zoom-opt.c
deleted file mode 100644 (file)
index 19d1e49..0000000
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- * $Id: zoom-opt.c,v 1.7 2002-06-04 08:33:49 adam Exp $
- *
- * ZOOM layer for C, options handling
- */
-#include <assert.h>
-#include <yaz/xmalloc.h>
-#include <yaz/log.h>
-
-#include "zoom-p.h"
-
-ZOOM_API(ZOOM_options)
-ZOOM_options_create_with_parent (ZOOM_options parent)
-{
-    return ZOOM_options_create_with_parent2(parent, 0);
-}
-
-ZOOM_API(ZOOM_options)
-ZOOM_options_create (void)
-{
-    return ZOOM_options_create_with_parent (0);
-}
-
-
-ZOOM_API(ZOOM_options)
-ZOOM_options_create_with_parent2 (ZOOM_options parent1, ZOOM_options parent2)
-{
-    ZOOM_options opt = (ZOOM_options) xmalloc (sizeof(*opt));
-
-    opt->refcount = 1;
-    opt->callback_func = 0;
-    opt->callback_handle = 0;
-    opt->entries = 0;
-    opt->parent1= parent1;
-    if (parent1)
-       (parent1->refcount)++;
-    opt->parent2= parent2;
-    if (parent2)
-       (parent2->refcount)++;
-    return opt;
-}
-
-
-void ZOOM_options_addref (ZOOM_options opt)
-{
-    (opt->refcount)++;
-}
-
-ZOOM_API(ZOOM_options_callback)
-ZOOM_options_set_callback (
-    ZOOM_options opt,
-    ZOOM_options_callback callback_func,
-    void *callback_handle)
-{
-    ZOOM_options_callback callback_old;
-
-    assert (opt);
-    callback_old = opt->callback_func;
-    opt->callback_func = callback_func;
-    opt->callback_handle = callback_handle;
-    return callback_old;
-}
-
-ZOOM_API(void)
-ZOOM_options_destroy (ZOOM_options opt)
-{
-    if (!opt)
-       return;
-    (opt->refcount)--;
-    if (opt->refcount == 0)
-    {
-       struct ZOOM_options_entry *e;
-       
-       ZOOM_options_destroy (opt->parent1);
-       ZOOM_options_destroy (opt->parent2);
-       e = opt->entries;
-       while (e)
-       {
-           struct ZOOM_options_entry *e0 = e;
-           xfree (e->name);
-           xfree (e->value);
-           e = e->next;
-           xfree (e0);
-       }
-       xfree (opt);
-    }
-}
-
-ZOOM_API(void)
-ZOOM_options_setl (ZOOM_options opt, const char *name, const char *value,
-                   int len)
-{
-    struct ZOOM_options_entry **e;
-
-    e = &opt->entries;
-    while (*e)
-    {
-       if (!strcmp((*e)->name, name))
-       {
-           xfree ((*e)->value);
-            (*e)->value = 0;
-            if (value)
-            {
-                (*e)->value = xmalloc (len+1);
-                memcpy ((*e)->value, value, len);
-                (*e)->value[len] = '\0';
-            }
-           return;
-       }
-       e = &(*e)->next;
-    }
-    *e = (struct ZOOM_options_entry *) xmalloc (sizeof(**e));
-    (*e)->name = xstrdup (name);
-    (*e)->value = 0;
-    if (value)
-    {
-        (*e)->value = xmalloc (len+1);
-        memcpy ((*e)->value, value, len);
-        (*e)->value[len] = '\0';
-    }
-    (*e)->next = 0;
-}
-
-ZOOM_API(void)
-ZOOM_options_set (ZOOM_options opt, const char *name, const char *value)
-{
-    ZOOM_options_setl (opt, name, value, value ? strlen(value): 0);
-}
-
-ZOOM_API(const char *)
-ZOOM_options_get (ZOOM_options opt, const char *name)
-{
-    const char *v = 0;
-    if (!opt)
-       return 0;
-    if (opt->callback_func)
-       v = (*opt->callback_func)(opt->callback_handle, name);
-    if (!v)
-    {
-       struct ZOOM_options_entry *e;
-       for (e = opt->entries; e; e = e->next)
-           if (!strcmp(e->name, name))
-           {
-               v = e->value;
-               break;
-           }
-    }
-    if (!v)
-       v = ZOOM_options_get(opt->parent1, name);
-    if (!v)
-       v = ZOOM_options_get(opt->parent2, name);
-    return v;
-}
-
-ZOOM_API(int)
-ZOOM_options_get_bool (ZOOM_options opt, const char *name, int defa)
-{
-    const char *v = ZOOM_options_get (opt, name);
-
-    if (!v)
-       return defa;
-    if (!strcmp (v, "1") || !strcmp(v, "T"))
-       return 1;
-    return 0;
-}
-
-ZOOM_API(int)
-ZOOM_options_get_int (ZOOM_options opt, const char *name, int defa)
-{
-    const char *v = ZOOM_options_get (opt, name);
-
-    if (!v || !*v)
-       return defa;
-    return atoi(v);
-}
-
-ZOOM_API(void)
-ZOOM_options_set_int(ZOOM_options opt, const char *name, int value)
-{
-    char s[40];
-
-    sprintf (s, "%d", value);
-    ZOOM_options_set (opt, name, s);
-}
diff --git a/zoom/zoom-p.h b/zoom/zoom-p.h
deleted file mode 100644 (file)
index 2d7d95d..0000000
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * Private C header for ZOOM C.
- * $Id: zoom-p.h,v 1.12 2002-08-20 08:19:40 adam Exp $
- */
-#include <yaz/proto.h>
-#include <yaz/comstack.h>
-#include <yaz/wrbuf.h>
-#include <yaz/zoom.h>
-#include <yaz/sortspec.h>
-
-typedef struct ZOOM_Event_p *ZOOM_Event;
-
-struct ZOOM_query_p {
-    Z_Query *query;
-    Z_SortKeySpecList *sort_spec;
-    int refcount;
-    ODR odr;
-};
-
-#define STATE_IDLE 0
-#define STATE_CONNECTING 1
-#define STATE_ESTABLISHED 2
-
-#define ZOOM_SELECT_READ 1
-#define ZOOM_SELECT_WRITE 2
-#define ZOOM_SELECT_EXCEPT 4
-
-struct ZOOM_connection_p {
-    COMSTACK cs;
-    char *host_port;
-    int error;
-    char *addinfo;
-    int state;
-    int mask;
-    int reconnect_ok;
-    ODR odr_in;
-    ODR odr_out;
-    char *buf_in;
-    int len_in;
-    char *buf_out;
-    int len_out;
-    char *proxy;
-    char *charset;
-    char *lang;
-    char *cookie_out;
-    char *cookie_in;
-    char *client_IP;
-    int async;
-    int support_named_resultsets;
-    int last_event;
-    ZOOM_task tasks;
-    ZOOM_options options;
-    ZOOM_resultset resultsets;
-    ZOOM_Event m_queue_front;
-    ZOOM_Event m_queue_back;
-};
-
-
-struct ZOOM_options_entry {
-    char *name;
-    char *value;
-    struct ZOOM_options_entry *next;
-};
-
-struct ZOOM_options_p {
-    int refcount;
-    void *callback_handle;
-    ZOOM_options_callback callback_func;
-    struct ZOOM_options_entry *entries;
-    ZOOM_options parent1;
-    ZOOM_options parent2;
-};
-
-typedef struct ZOOM_record_cache_p *ZOOM_record_cache;
-
-struct ZOOM_resultset_p {
-    Z_Query *r_query;
-    Z_SortKeySpecList *r_sort_spec;
-    ZOOM_query search;
-    int refcount;
-    int size;
-    int start;
-    int count;
-    int piggyback;
-    char *setname;
-    ODR odr;
-    ZOOM_record_cache record_cache;
-    ZOOM_options options;
-    ZOOM_connection connection;
-    ZOOM_resultset next;
-};
-
-struct ZOOM_record_p {
-    ODR odr;
-    WRBUF wrbuf_marc;
-    Z_NamePlusRecord *npr;
-};
-
-struct ZOOM_record_cache_p {
-    struct ZOOM_record_p rec;
-    char *elementSetName;
-    char *syntax;
-    int pos;
-    ZOOM_record_cache next;
-};
-
-struct ZOOM_scanset_p {
-    int refcount;
-    ODR odr;
-    ZOOM_options options;
-    ZOOM_connection connection;
-    Z_AttributesPlusTerm *termListAndStartPoint;
-    Z_AttributeSetId *attributeSet;
-    Z_ScanResponse *scan_response;
-};
-
-struct ZOOM_package_p {
-    int refcount;
-    ODR odr_out;
-    ZOOM_options options;
-    ZOOM_connection connection;
-    char *buf_out;
-    int len_out;
-};
-
-struct ZOOM_task_p {
-    int running;
-    int which;
-    union {
-#define ZOOM_TASK_SEARCH 1
-        struct {
-            ZOOM_resultset resultset;
-        } search;
-#define ZOOM_TASK_RETRIEVE 2
-        struct {
-            int start;
-            ZOOM_resultset resultset;
-            int count;
-        } retrieve;
-#define ZOOM_TASK_CONNECT 3
-#define ZOOM_TASK_SCAN 4
-        struct {
-            ZOOM_scanset scan;
-        } scan;
-#define ZOOM_TASK_PACKAGE 5
-        ZOOM_package package;
-    } u;
-    ZOOM_task next;
-};
-
-struct ZOOM_Event_p {
-    int kind;
-    ZOOM_Event next;
-    ZOOM_Event prev;
-};
-
-void ZOOM_options_addref (ZOOM_options opt);
index 3cc9b75..574a9e8 100644 (file)
@@ -1,7 +1,8 @@
-## $Id: Makefile.am,v 1.11 2002-09-11 21:25:57 adam Exp $
+## $Id: Makefile.am,v 1.12 2002-09-16 18:45:14 adam Exp $
 noinst_LTLIBRARIES = libzutil.la
 
 AM_CPPFLAGS=-I$(top_srcdir)/include 
 
 libzutil_la_SOURCES = zget.c yaz-ccl.c diagbib1.c logrpn.c \
-  otherinfo.c pquery.c sortspec.c z3950oid.c charneg.c
+  otherinfo.c pquery.c sortspec.c z3950oid.c charneg.c \
+  zoom-c.c zoom-opt.c zoom-p.h
diff --git a/zutil/zoom-c.c b/zutil/zoom-c.c
new file mode 100644 (file)
index 0000000..58a51bf
--- /dev/null
@@ -0,0 +1,2504 @@
+/*
+ * $Id: zoom-c.c,v 1.1 2002-09-16 18:45:14 adam Exp $
+ *
+ * ZOOM layer for C, connections, result sets, queries.
+ */
+#include <assert.h>
+#include <yaz/xmalloc.h>
+#include <yaz/otherinfo.h>
+#include <yaz/log.h>
+#include <yaz/pquery.h>
+#include <yaz/diagbib1.h>
+#include <yaz/charneg.h>
+#include <yaz/ill.h>
+
+#include "zoom-p.h"
+
+#if HAVE_SYS_POLL_H
+#include <sys/poll.h>
+#endif
+
+static int ZOOM_connection_send_init (ZOOM_connection c);
+static int do_write_ex (ZOOM_connection c, char *buf_out, int len_out);
+
+static ZOOM_Event ZOOM_Event_create (int kind)
+{
+    ZOOM_Event event = (ZOOM_Event) xmalloc (sizeof(*event));
+    event->kind = kind;
+    event->next = 0;
+    event->prev = 0;
+    return event;
+}
+
+static void ZOOM_Event_destroy (ZOOM_Event event)
+{
+    xfree (event);
+}
+
+static void ZOOM_connection_put_event (ZOOM_connection c, ZOOM_Event event)
+{
+    if (c->m_queue_back)
+    {
+       c->m_queue_back->prev = event;
+       assert (c->m_queue_front);
+    }
+    else
+    {
+       assert (!c->m_queue_front);
+       c->m_queue_front = event;
+    }
+    event->next = c->m_queue_back;
+    event->prev = 0;
+    c->m_queue_back = event;
+}
+
+static ZOOM_Event ZOOM_connection_get_event(ZOOM_connection c)
+{
+    ZOOM_Event event = c->m_queue_front;
+    if (!event)
+       return 0;
+    assert (c->m_queue_back);
+    c->m_queue_front = event->prev;
+    if (c->m_queue_front)
+    {
+       assert (c->m_queue_back);
+       c->m_queue_front->next = 0;
+    }
+    else
+       c->m_queue_back = 0;
+    c->last_event = event->kind;
+    return event;
+}
+
+static void clear_error (ZOOM_connection c)
+{
+
+    switch (c->error)
+    {
+    case ZOOM_ERROR_CONNECT:
+    case ZOOM_ERROR_MEMORY:
+    case ZOOM_ERROR_DECODE:
+    case ZOOM_ERROR_CONNECTION_LOST:
+    case ZOOM_ERROR_INIT:
+    case ZOOM_ERROR_INTERNAL:
+        break;
+    default:
+        c->error = ZOOM_ERROR_NONE;
+        xfree (c->addinfo);
+        c->addinfo = 0;
+    }
+}
+
+ZOOM_task ZOOM_connection_add_task (ZOOM_connection c, int which)
+{
+    ZOOM_task *taskp = &c->tasks;
+    while (*taskp)
+       taskp = &(*taskp)->next;
+    *taskp = (ZOOM_task) xmalloc (sizeof(**taskp));
+    (*taskp)->running = 0;
+    (*taskp)->which = which;
+    (*taskp)->next = 0;
+    clear_error (c);
+    return *taskp;
+}
+
+ZOOM_task ZOOM_connection_insert_task (ZOOM_connection c, int which)
+{
+    ZOOM_task task = (ZOOM_task) xmalloc (sizeof(*task));
+
+    task->next = c->tasks;
+    c->tasks = task;
+
+    task->running = 0;
+    task->which = which;
+    clear_error (c);
+    return task;
+}
+
+void ZOOM_connection_remove_task (ZOOM_connection c)
+{
+    ZOOM_task task = c->tasks;
+
+    if (task)
+    {
+       c->tasks = task->next;
+       switch (task->which)
+       {
+       case ZOOM_TASK_SEARCH:
+           ZOOM_resultset_destroy (task->u.search.resultset);
+           break;
+       case ZOOM_TASK_RETRIEVE:
+           ZOOM_resultset_destroy (task->u.retrieve.resultset);
+           break;
+        case ZOOM_TASK_CONNECT:
+            break;
+        case ZOOM_TASK_SCAN:
+            ZOOM_scanset_destroy (task->u.scan.scan);
+            break;
+        case ZOOM_TASK_PACKAGE:
+            ZOOM_package_destroy (task->u.package);
+            break;
+       default:
+           assert (0);
+       }
+       xfree (task);
+    }
+}
+
+void ZOOM_connection_remove_tasks (ZOOM_connection c)
+{
+    while (c->tasks)
+       ZOOM_connection_remove_task(c);
+}
+
+static ZOOM_record record_cache_lookup (ZOOM_resultset r, int pos);
+
+ZOOM_API(ZOOM_connection)
+ZOOM_connection_create (ZOOM_options options)
+{
+    ZOOM_connection c = (ZOOM_connection) xmalloc (sizeof(*c));
+
+    c->cs = 0;
+    c->mask = 0;
+    c->reconnect_ok = 0;
+    c->state = STATE_IDLE;
+    c->error = ZOOM_ERROR_NONE;
+    c->addinfo = 0;
+    c->buf_in = 0;
+    c->len_in = 0;
+    c->buf_out = 0;
+    c->len_out = 0;
+    c->resultsets = 0;
+
+    c->options = ZOOM_options_create_with_parent(options);
+
+    c->host_port = 0;
+    c->proxy = 0;
+    
+    c->charset = c->lang = 0;
+
+    c->cookie_out = 0;
+    c->cookie_in = 0;
+    c->client_IP = 0;
+    c->tasks = 0;
+
+    c->odr_in = odr_createmem (ODR_DECODE);
+    c->odr_out = odr_createmem (ODR_ENCODE);
+
+    c->async = 0;
+    c->support_named_resultsets = 0;
+    c->last_event = ZOOM_EVENT_NONE;
+
+    c->m_queue_front = 0;
+    c->m_queue_back = 0;
+    return c;
+}
+
+/* set database names. Take local databases (if set); otherwise
+   take databases given in ZURL (if set); otherwise use Default */
+static char **set_DatabaseNames (ZOOM_connection con, ZOOM_options options,
+                                 int *num)
+{
+    char **databaseNames;
+    const char *c;
+    int no = 2;
+    const char *cp = ZOOM_options_get (options, "databaseName");
+    
+    if (!cp || !*cp)
+    {
+        if (strncmp (con->host_port, "unix:", 5) == 0)
+           cp = strchr (con->host_port+5, ':');
+       else
+           cp = strchr (con->host_port, '/');
+       if (cp)
+           cp++;
+    }
+    if (cp)
+    {
+       c = cp;
+       while ((c = strchr(c, '+')))
+       {
+           c++;
+           no++;
+       }
+    }
+    else
+       cp = "Default";
+    databaseNames = (char**)
+        odr_malloc (con->odr_out, no * sizeof(*databaseNames));
+    no = 0;
+    while (*cp)
+    {
+       c = strchr (cp, '+');
+       if (!c)
+           c = cp + strlen(cp);
+       else if (c == cp)
+       {
+           cp++;
+           continue;
+       }
+       /* cp ptr to first char of db name, c is char
+          following db name */
+       databaseNames[no] = (char*) odr_malloc (con->odr_out, 1+c-cp);
+       memcpy (databaseNames[no], cp, c-cp);
+       databaseNames[no++][c-cp] = '\0';
+       cp = c;
+       if (*cp)
+           cp++;
+    }
+    databaseNames[no] = NULL;
+    *num = no;
+    return databaseNames;
+}
+
+ZOOM_API(ZOOM_connection)
+ZOOM_connection_new (const char *host, int portnum)
+{
+    ZOOM_connection c = ZOOM_connection_create (0);
+
+    ZOOM_connection_connect (c, host, portnum);
+    return c;
+}
+
+ZOOM_API(void)
+ZOOM_connection_connect(ZOOM_connection c,
+                        const char *host, int portnum)
+{
+    const char *val;
+    ZOOM_task task;
+
+    if (c->cs)
+    {
+        yaz_log (LOG_DEBUG, "reconnect");
+        c->reconnect_ok = 1;
+        return;
+    }
+    yaz_log(LOG_DEBUG, "connect");
+    xfree (c->proxy);
+    val = ZOOM_options_get (c->options, "proxy");
+    if (val && *val)
+       c->proxy = xstrdup (val);
+    else
+       c->proxy = 0;
+
+    xfree (c->charset);
+    val = ZOOM_options_get (c->options, "charset");
+    if (val && *val)
+       c->charset = xstrdup (val);
+    else
+       c->charset = 0;
+
+    xfree (c->lang);
+    val = ZOOM_options_get (c->options, "lang");
+    if (val && *val)
+       c->lang = xstrdup (val);
+    else
+       c->lang = 0;
+
+    xfree (c->host_port);
+    if (portnum)
+    {
+       char hostn[128];
+       sprintf (hostn, "%.80s:%d", host, portnum);
+       c->host_port = xstrdup(hostn);
+    }
+    else
+       c->host_port = xstrdup(host);
+
+    ZOOM_options_set(c->options, "host", c->host_port);
+
+    val = ZOOM_options_get (c->options, "cookie");
+    if (val && *val)
+        c->cookie_out = xstrdup (val);
+
+    val = ZOOM_options_get (c->options, "clientIP");
+    if (val && *val)
+        c->client_IP = xstrdup (val);
+
+    c->async = ZOOM_options_get_bool (c->options, "async", 0);
+    c->error = ZOOM_ERROR_NONE;
+
+    task = ZOOM_connection_add_task (c, ZOOM_TASK_CONNECT);
+
+    if (!c->async)
+    {
+       while (ZOOM_event (1, &c))
+           ;
+    }
+}
+
+ZOOM_API(ZOOM_query)
+ZOOM_query_create(void)
+{
+    ZOOM_query s = (ZOOM_query) xmalloc (sizeof(*s));
+
+    s->refcount = 1;
+    s->query = 0;
+    s->sort_spec = 0;
+    s->odr = odr_createmem (ODR_ENCODE);
+
+    return s;
+}
+
+ZOOM_API(void)
+ZOOM_query_destroy(ZOOM_query s)
+{
+    if (!s)
+       return;
+
+    (s->refcount)--;
+    yaz_log (LOG_DEBUG, "ZOOM_query_destroy count=%d", s->refcount);
+    if (s->refcount == 0)
+    {
+       odr_destroy (s->odr);
+       xfree (s);
+    }
+}
+
+ZOOM_API(int)
+ZOOM_query_prefix(ZOOM_query s, const char *str)
+{
+    s->query = (Z_Query *) odr_malloc (s->odr, sizeof(*s->query));
+    s->query->which = Z_Query_type_1;
+    s->query->u.type_1 =  p_query_rpn(s->odr, PROTO_Z3950, str);
+    if (!s->query->u.type_1)
+       return -1;
+    return 0;
+}
+
+ZOOM_API(int)
+ZOOM_query_sortby(ZOOM_query s, const char *criteria)
+{
+    s->sort_spec = yaz_sort_spec (s->odr, criteria);
+    if (!s->sort_spec)
+       return -1;
+    return 0;
+}
+
+static int do_write(ZOOM_connection c);
+
+ZOOM_API(void)
+ZOOM_connection_destroy(ZOOM_connection c)
+{
+    ZOOM_resultset r;
+    if (!c)
+       return;
+    if (c->cs)
+       cs_close (c->cs);
+    for (r = c->resultsets; r; r = r->next)
+       r->connection = 0;
+
+    xfree (c->buf_in);
+    xfree (c->addinfo);
+    odr_destroy (c->odr_in);
+    odr_destroy (c->odr_out);
+    ZOOM_options_destroy (c->options);
+    ZOOM_connection_remove_tasks (c);
+    xfree (c->host_port);
+    xfree (c->proxy);
+    xfree (c->charset);
+    xfree (c->lang);
+    xfree (c->cookie_out);
+    xfree (c->cookie_in);
+    xfree (c->client_IP);
+    xfree (c);
+}
+
+void ZOOM_resultset_addref (ZOOM_resultset r)
+{
+    if (r)
+       (r->refcount)++;
+}
+ZOOM_resultset ZOOM_resultset_create ()
+{
+    ZOOM_resultset r = (ZOOM_resultset) xmalloc (sizeof(*r));
+
+    r->refcount = 1;
+    r->size = 0;
+    r->odr = odr_createmem (ODR_ENCODE);
+    r->start = 0;
+    r->piggyback = 1;
+    r->setname = 0;
+    r->count = 0;
+    r->record_cache = 0;
+    r->r_sort_spec = 0;
+    r->r_query = 0;
+    r->search = 0;
+    r->connection = 0;
+    r->next = 0;
+    return r;
+}
+
+ZOOM_API(ZOOM_resultset)
+ZOOM_connection_search_pqf(ZOOM_connection c, const char *q)
+{
+    ZOOM_resultset r;
+    ZOOM_query s = ZOOM_query_create();
+
+    ZOOM_query_prefix (s, q);
+
+    r = ZOOM_connection_search (c, s);
+    ZOOM_query_destroy (s);
+    return r;
+}
+
+ZOOM_API(ZOOM_resultset)
+ZOOM_connection_search(ZOOM_connection c, ZOOM_query q)
+{
+    ZOOM_resultset r = ZOOM_resultset_create ();
+    ZOOM_task task;
+    const char *cp;
+
+    r->r_sort_spec = q->sort_spec;
+    r->r_query = q->query;
+    r->search = q;
+
+    r->options = ZOOM_options_create_with_parent(c->options);
+
+    r->start = ZOOM_options_get_int(r->options, "start", 0);
+    r->count = ZOOM_options_get_int(r->options, "count", 0);
+    r->piggyback = ZOOM_options_get_bool (r->options, "piggyback", 1);
+    cp = ZOOM_options_get (r->options, "setname");
+    if (cp)
+        r->setname = xstrdup (cp);
+    
+    r->connection = c;
+
+    r->next = c->resultsets;
+    c->resultsets = r;
+
+    task = ZOOM_connection_add_task (c, ZOOM_TASK_SEARCH);
+    task->u.search.resultset = r;
+    ZOOM_resultset_addref (r);  
+
+    (q->refcount)++;
+
+    if (!c->async)
+    {
+       while (ZOOM_event (1, &c))
+           ;
+    }
+    return r;
+}
+
+ZOOM_API(void)
+ZOOM_resultset_destroy(ZOOM_resultset r)
+{
+    if (!r)
+        return;
+    (r->refcount)--;
+    yaz_log (LOG_DEBUG, "destroy r = %p count=%d", r, r->refcount);
+    if (r->refcount == 0)
+    {
+        ZOOM_record_cache rc;
+
+        for (rc = r->record_cache; rc; rc = rc->next)
+            if (rc->rec.wrbuf_marc)
+                wrbuf_free (rc->rec.wrbuf_marc, 1);
+       if (r->connection)
+       {
+           /* remove ourselves from the resultsets in connection */
+           ZOOM_resultset *rp = &r->connection->resultsets;
+           while (1)
+           {
+               assert (*rp);   /* we must be in this list!! */
+               if (*rp == r)
+               {   /* OK, we're here - take us out of it */
+                   *rp = (*rp)->next;
+                   break;
+               }
+               rp = &(*rp)->next;
+           }
+       }
+       ZOOM_query_destroy (r->search);
+       ZOOM_options_destroy (r->options);
+       odr_destroy (r->odr);
+        xfree (r->setname);
+       xfree (r);
+    }
+}
+
+ZOOM_API(size_t)
+ZOOM_resultset_size (ZOOM_resultset r)
+{
+    return r->size;
+}
+
+static void do_close (ZOOM_connection c)
+{
+    if (c->cs)
+       cs_close(c->cs);
+    c->cs = 0;
+    c->mask = 0;
+    c->state = STATE_IDLE;
+}
+
+static void ZOOM_resultset_retrieve (ZOOM_resultset r,
+                                     int force_sync, int start, int count)
+{
+    ZOOM_task task;
+    ZOOM_connection c;
+
+    if (!r)
+       return;
+    c = r->connection;
+    if (!c)
+       return;
+    task = ZOOM_connection_add_task (c, ZOOM_TASK_RETRIEVE);
+    task->u.retrieve.resultset = r;
+    task->u.retrieve.start = start;
+    task->u.retrieve.count = count;
+
+    ZOOM_resultset_addref (r);
+
+    if (!r->connection->async || force_sync)
+       while (r->connection && ZOOM_event (1, &r->connection))
+           ;
+}
+
+ZOOM_API(void)
+ZOOM_resultset_records (ZOOM_resultset r, ZOOM_record *recs,
+                        size_t start, size_t count)
+{
+    int force_present = 0;
+
+    if (!r)
+       return ;
+    if (count && recs)
+        force_present = 1;
+    ZOOM_resultset_retrieve (r, force_present, start, count);
+    if (force_present)
+    {
+        size_t i;
+        for (i = 0; i< count; i++)
+            recs[i] = ZOOM_resultset_record_immediate (r, i+start);
+    }
+}
+
+static int do_connect (ZOOM_connection c)
+{
+    void *add;
+    const char *effective_host;
+
+    if (c->proxy)
+       effective_host = c->proxy;
+    else
+       effective_host = c->host_port;
+
+    yaz_log (LOG_DEBUG, "do_connect host=%s", effective_host);
+
+    assert (!c->cs);
+    c->cs = cs_create_host (effective_host, 0, &add);
+
+    if (c->cs)
+    {
+       int ret = cs_connect (c->cs, add);
+        if (ret == 0)
+        {
+            ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_CONNECT);
+            ZOOM_connection_put_event(c, event);
+            ZOOM_connection_send_init(c);
+            c->state = STATE_ESTABLISHED;
+            return 1;
+        }
+        else if (ret > 0)
+       {
+           c->state = STATE_CONNECTING; 
+            c->mask = ZOOM_SELECT_EXCEPT;
+            if (c->cs->io_pending & CS_WANT_WRITE)
+                c->mask += ZOOM_SELECT_WRITE;
+            if (c->cs->io_pending & CS_WANT_READ)
+                c->mask += ZOOM_SELECT_READ;
+           return 1;
+       }
+    }
+    c->state = STATE_IDLE;
+    c->error = ZOOM_ERROR_CONNECT;
+    return 0;
+}
+
+int z3950_connection_socket(ZOOM_connection c)
+{
+    if (c->cs)
+       return cs_fileno(c->cs);
+    return -1;
+}
+
+int z3950_connection_mask(ZOOM_connection c)
+{
+    if (c->cs)
+       return c->mask;
+    return 0;
+}
+
+static void otherInfo_attach (ZOOM_connection c, Z_APDU *a, ODR out)
+{
+    int i;
+    for (i = 0; i<200; i++)
+    {
+        size_t len;
+       Z_OtherInformation **oi;
+        char buf[80];
+        const char *val;
+        const char *cp;
+        int oidval;
+
+        sprintf (buf, "otherInfo%d", i);
+        val = ZOOM_options_get (c->options, buf);
+        if (!val)
+            break;
+        cp = strchr (val, ':');
+        if (!cp)
+            continue;
+        len = cp - val;
+        if (len >= sizeof(buf))
+            len = sizeof(buf)-1;
+        memcpy (buf, val, len);
+        buf[len] = '\0';
+        oidval = oid_getvalbyname (buf);
+        if (oidval == VAL_NONE)
+            continue;
+        
+       yaz_oi_APDU(a, &oi);
+       yaz_oi_set_string_oidval(oi, out, oidval, 1, cp+1);
+    }
+}
+
+static int encode_APDU(ZOOM_connection c, Z_APDU *a, ODR out)
+{
+    assert (a);
+    if (c->cookie_out)
+    {
+       Z_OtherInformation **oi;
+       yaz_oi_APDU(a, &oi);
+       yaz_oi_set_string_oidval(oi, out, VAL_COOKIE, 1, c->cookie_out);
+    }
+    if (c->client_IP)
+    {
+       Z_OtherInformation **oi;
+       yaz_oi_APDU(a, &oi);
+       yaz_oi_set_string_oidval(oi, out, VAL_CLIENT_IP, 1, c->client_IP);
+    }
+    otherInfo_attach (c, a, out);
+    if (!z_APDU(out, &a, 0, 0))
+    {
+       FILE *outf = fopen("/tmp/apdu.txt", "a");
+       if (a && outf)
+       {
+           ODR odr_pr = odr_createmem(ODR_PRINT);
+           fprintf (outf, "a=%p\n", a);
+           odr_setprint(odr_pr, outf);
+           z_APDU(odr_pr, &a, 0, 0);
+           odr_destroy(odr_pr);
+       }
+       c->error = ZOOM_ERROR_ENCODE;
+       do_close (c);
+       return -1;
+    }
+    
+    return 0;
+}
+
+static int send_APDU (ZOOM_connection c, Z_APDU *a)
+{
+    ZOOM_Event event;
+    assert (a);
+    if (encode_APDU(c, a, c->odr_out))
+       return -1;
+    c->buf_out = odr_getbuf(c->odr_out, &c->len_out, 0);
+    event = ZOOM_Event_create (ZOOM_EVENT_SEND_APDU);
+    ZOOM_connection_put_event (c, event);
+    odr_reset(c->odr_out);
+    do_write (c);
+    return 0;
+}
+
+static int ZOOM_connection_send_init (ZOOM_connection c)
+{
+    const char *impname;
+    Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_initRequest);
+    Z_InitRequest *ireq = apdu->u.initRequest;
+    Z_IdAuthentication *auth = (Z_IdAuthentication *)
+        odr_malloc(c->odr_out, sizeof(*auth));
+    const char *auth_groupId = ZOOM_options_get (c->options, "group");
+    const char *auth_userId = ZOOM_options_get (c->options, "user");
+    const char *auth_password = ZOOM_options_get (c->options, "pass");
+    
+    ODR_MASK_SET(ireq->options, Z_Options_search);
+    ODR_MASK_SET(ireq->options, Z_Options_present);
+    ODR_MASK_SET(ireq->options, Z_Options_scan);
+    ODR_MASK_SET(ireq->options, Z_Options_sort);
+    ODR_MASK_SET(ireq->options, Z_Options_extendedServices);
+    ODR_MASK_SET(ireq->options, Z_Options_namedResultSets);
+    
+    ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_1);
+    ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_2);
+    ODR_MASK_SET(ireq->protocolVersion, Z_ProtocolVersion_3);
+    
+    impname = ZOOM_options_get (c->options, "implementationName");
+    ireq->implementationName =
+       (char *) odr_malloc (c->odr_out, 15 + (impname ? strlen(impname) : 0));
+    strcpy (ireq->implementationName, "");
+    if (impname)
+    {
+       strcat (ireq->implementationName, impname);
+       strcat (ireq->implementationName, "/");
+    }                                         
+    strcat (ireq->implementationName, "ZOOM-C/YAZ");
+    
+    *ireq->maximumRecordSize =
+       ZOOM_options_get_int (c->options, "maximumRecordSize", 1024*1024);
+    *ireq->preferredMessageSize =
+       ZOOM_options_get_int (c->options, "preferredMessageSize", 1024*1024);
+    
+    if (auth_groupId || auth_password)
+    {
+       Z_IdPass *pass = (Z_IdPass *) odr_malloc(c->odr_out, sizeof(*pass));
+       int i = 0;
+       pass->groupId = 0;
+       if (auth_groupId && *auth_groupId)
+       {
+           pass->groupId = (char *)
+                odr_malloc(c->odr_out, strlen(auth_groupId)+1);
+           strcpy(pass->groupId, auth_groupId);
+           i++;
+       }
+       pass->userId = 0;
+       if (auth_userId && *auth_userId)
+       {
+           pass->userId = (char *)
+                odr_malloc(c->odr_out, strlen(auth_userId)+1);
+           strcpy(pass->userId, auth_userId);
+           i++;
+       }
+       pass->password = 0;
+       if (auth_password && *auth_password)
+       {
+           pass->password = (char *)
+                odr_malloc(c->odr_out, strlen(auth_password)+1);
+           strcpy(pass->password, auth_password);
+           i++;
+       }
+       if (i)
+       {
+           auth->which = Z_IdAuthentication_idPass;
+           auth->u.idPass = pass;
+           ireq->idAuthentication = auth;
+       }
+    }
+    else if (auth_userId)
+    {
+       auth->which = Z_IdAuthentication_open;
+       auth->u.open = (char *)
+            odr_malloc(c->odr_out, strlen(auth_userId)+1);
+       strcpy(auth->u.open, auth_userId);
+       ireq->idAuthentication = auth;
+    }
+    if (c->proxy)
+       yaz_oi_set_string_oidval(&ireq->otherInfo, c->odr_out,
+                                VAL_PROXY, 1, c->host_port);
+    if (c->charset||c->lang)
+    {
+       Z_OtherInformation **oi;
+       Z_OtherInformationUnit *oi_unit;
+       
+       yaz_oi_APDU(apdu, &oi);
+       
+       if ((oi_unit = yaz_oi_update(oi, c->odr_out, NULL, 0, 0)))
+       {
+            ODR_MASK_SET(ireq->options, Z_Options_negotiationModel);
+            
+            oi_unit->which = Z_OtherInfo_externallyDefinedInfo;
+            oi_unit->information.externallyDefinedInfo =
+                yaz_set_proposal_charneg
+                (c->odr_out,
+                 (const char **)&c->charset, (c->charset) ? 1:0,
+                 (const char **)&c->lang, (c->lang) ? 1:0, 1);
+       }
+    }
+    assert (apdu);
+    send_APDU (c, apdu);
+    
+    return 0;
+}
+
+static int ZOOM_connection_send_search (ZOOM_connection c)
+{
+    ZOOM_resultset r;
+    int lslb, ssub, mspn;
+    const char *syntax;
+    Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_searchRequest);
+    Z_SearchRequest *search_req = apdu->u.searchRequest;
+    const char *elementSetName;
+    const char *smallSetElementSetName;
+    const char *mediumSetElementSetName;
+    const char *schema;
+
+    assert (c->tasks);
+    assert (c->tasks->which == ZOOM_TASK_SEARCH);
+
+    r = c->tasks->u.search.resultset;
+
+    elementSetName =
+       ZOOM_options_get (r->options, "elementSetName");
+    smallSetElementSetName  =
+       ZOOM_options_get (r->options, "smallSetElementSetName");
+    mediumSetElementSetName =
+       ZOOM_options_get (r->options, "mediumSetElementSetName");
+    schema =
+       ZOOM_options_get (r->options, "schema");
+
+    if (!smallSetElementSetName)
+       smallSetElementSetName = elementSetName;
+
+    if (!mediumSetElementSetName)
+       mediumSetElementSetName = elementSetName;
+
+    assert (r);
+    assert (r->r_query);
+
+    /* prepare query for the search request */
+    search_req->query = r->r_query;
+
+    search_req->databaseNames =
+       set_DatabaseNames (c, r->options, &search_req->num_databaseNames);
+
+    /* get syntax (no need to provide unless piggyback is in effect) */
+    syntax = ZOOM_options_get (r->options, "preferredRecordSyntax");
+
+    lslb = ZOOM_options_get_int (r->options, "largeSetLowerBound", -1);
+    ssub = ZOOM_options_get_int (r->options, "smallSetUpperBound", -1);
+    mspn = ZOOM_options_get_int (r->options, "mediumSetPresentNumber", -1);
+    if (lslb != -1 && ssub != -1 && mspn != -1)
+    {
+       /* So're a Z39.50 expert? Let's hope you don't do sort */
+       *search_req->largeSetLowerBound = lslb;
+       *search_req->smallSetUpperBound = ssub;
+       *search_req->mediumSetPresentNumber = mspn;
+    }
+    else if (r->start == 0 && r->count > 0
+            && r->piggyback && !r->r_sort_spec && !schema)
+    {
+       /* Regular piggyback - do it unless we're going to do sort */
+       *search_req->largeSetLowerBound = 2000000000;
+       *search_req->smallSetUpperBound = r->count;
+       *search_req->mediumSetPresentNumber = r->count;
+       smallSetElementSetName = 0;  /* no need to provide this */
+    }
+    else
+    {
+       /* non-piggyback. Need not provide elementsets or syntaxes .. */
+       smallSetElementSetName = 0;
+       mediumSetElementSetName = 0;
+       syntax = 0;
+    }
+    if (smallSetElementSetName && *smallSetElementSetName)
+    {
+       Z_ElementSetNames *esn = (Z_ElementSetNames *)
+            odr_malloc (c->odr_out, sizeof(*esn));
+       
+       esn->which = Z_ElementSetNames_generic;
+       esn->u.generic = odr_strdup (c->odr_out, smallSetElementSetName);
+       search_req->smallSetElementSetNames = esn;
+    }
+    if (mediumSetElementSetName && *mediumSetElementSetName)
+    {
+       Z_ElementSetNames *esn = (Z_ElementSetNames *)
+            odr_malloc (c->odr_out, sizeof(*esn));
+       
+       esn->which = Z_ElementSetNames_generic;
+       esn->u.generic = odr_strdup (c->odr_out, mediumSetElementSetName);
+       search_req->mediumSetElementSetNames = esn;
+    }
+    if (syntax)
+       search_req->preferredRecordSyntax =
+           yaz_str_to_z3950oid (c->odr_out, CLASS_RECSYN, syntax);
+    
+    if (!r->setname)
+    {
+        if (c->support_named_resultsets)
+        {
+            char setname[14];
+            int ord;
+            /* find the lowest unused ordinal so that we re-use
+               result sets on the server. */
+            for (ord = 1; ; ord++)
+            {
+                ZOOM_resultset rp;
+                sprintf (setname, "%d", ord);
+                for (rp = c->resultsets; rp; rp = rp->next)
+                    if (rp->setname && !strcmp (rp->setname, setname))
+                        break;
+                if (!rp)
+                    break;
+            }
+            r->setname = xstrdup (setname);
+            yaz_log (LOG_DEBUG, "allocating %s", r->setname);
+        }
+        else
+            r->setname = xstrdup ("default");
+        ZOOM_options_set (r->options, "setname", r->setname);
+    }
+    search_req->resultSetName = odr_strdup(c->odr_out, r->setname);
+    /* send search request */
+    send_APDU (c, apdu);
+    return 1;
+}
+
+static void response_diag (ZOOM_connection c, Z_DiagRec *p)
+{
+    Z_DefaultDiagFormat *r;
+    char *addinfo = 0;
+    
+    xfree (c->addinfo);
+    c->addinfo = 0;
+    if (p->which != Z_DiagRec_defaultFormat)
+    {
+       c->error = ZOOM_ERROR_DECODE;
+       return;
+    }
+    r = p->u.defaultFormat;
+    switch (r->which)
+    {
+    case Z_DefaultDiagFormat_v2Addinfo:
+       addinfo = r->u.v2Addinfo;
+       break;
+    case Z_DefaultDiagFormat_v3Addinfo:
+       addinfo = r->u.v3Addinfo;
+       break;
+    }
+    if (addinfo)
+       c->addinfo = xstrdup (addinfo);
+    c->error = *r->condition;
+}
+
+ZOOM_API(ZOOM_record)
+ZOOM_record_clone (ZOOM_record srec)
+{
+    char *buf;
+    int size;
+    ODR odr_enc;
+    ZOOM_record nrec;
+
+    odr_enc = odr_createmem(ODR_ENCODE);
+    if (!z_NamePlusRecord (odr_enc, &srec->npr, 0, 0))
+       return 0;
+    buf = odr_getbuf (odr_enc, &size, 0);
+    
+    nrec = (ZOOM_record) xmalloc (sizeof(*nrec));
+    nrec->odr = odr_createmem(ODR_DECODE);
+    nrec->wrbuf_marc = 0;
+    odr_setbuf (nrec->odr, buf, size, 0);
+    z_NamePlusRecord (nrec->odr, &nrec->npr, 0, 0);
+    
+    odr_destroy (odr_enc);
+    return nrec;
+}
+
+ZOOM_API(ZOOM_record)
+ZOOM_resultset_record_immediate (ZOOM_resultset s,size_t pos)
+{
+    return record_cache_lookup (s, pos);
+}
+
+ZOOM_API(ZOOM_record)
+ZOOM_resultset_record (ZOOM_resultset r, size_t pos)
+{
+    ZOOM_resultset_retrieve (r, 1, pos, 1);
+    return ZOOM_resultset_record_immediate (r, pos);
+}
+
+ZOOM_API(void)
+ZOOM_record_destroy (ZOOM_record rec)
+{
+    if (!rec)
+       return;
+    if (rec->wrbuf_marc)
+       wrbuf_free (rec->wrbuf_marc, 1);
+    odr_destroy (rec->odr);
+    xfree (rec);
+}
+
+ZOOM_API(const char *)
+ZOOM_record_get (ZOOM_record rec, const char *type, int *len)
+{
+    Z_NamePlusRecord *npr;
+    
+    if (len)
+       *len = 0; /* default return */
+       
+    if (!rec)
+       return 0;
+    npr = rec->npr;
+    if (!npr)
+       return 0;
+    if (!strcmp (type, "database"))
+    {
+       if (len)
+            *len = (npr->databaseName ? strlen(npr->databaseName) : 0);
+       return npr->databaseName;
+    }
+    else if (!strcmp (type, "syntax"))
+    {
+       if (npr->which == Z_NamePlusRecord_databaseRecord)
+       {
+           Z_External *r = (Z_External *) npr->u.databaseRecord;
+           oident *ent = oid_getentbyoid(r->direct_reference);
+           if (ent)
+           {
+               if (len)
+                    *len = strlen(ent->desc);
+               return ent->desc;
+           }
+       }
+       return "none";
+    }
+    else if (!strcmp (type, "render") && 
+             npr->which == Z_NamePlusRecord_databaseRecord)
+    {
+        Z_External *r = (Z_External *) npr->u.databaseRecord;
+        oident *ent = oid_getentbyoid(r->direct_reference);
+        
+        if (r->which == Z_External_sutrs)
+        {
+            if (len) *len = r->u.sutrs->len;
+            return (const char *) r->u.sutrs->buf;
+        }
+        else if (r->which == Z_External_octet)
+        {
+            switch (ent->value)
+            {
+            case VAL_SOIF:
+            case VAL_HTML:
+            case VAL_SUTRS:
+                break;
+            case VAL_TEXT_XML:
+            case VAL_APPLICATION_XML:
+                break;
+            default:
+                if (!rec->wrbuf_marc)
+                    rec->wrbuf_marc = wrbuf_alloc();
+                wrbuf_rewind (rec->wrbuf_marc);
+                if (yaz_marc_decode ((const char *)
+                                     r->u.octet_aligned->buf,
+                                     rec->wrbuf_marc, 0,
+                                     r->u.octet_aligned->len,
+                                     0) > 0)
+                {
+                    if (len) *len = wrbuf_len(rec->wrbuf_marc);
+                    return wrbuf_buf(rec->wrbuf_marc);
+                }
+            }
+            if (len) *len = r->u.octet_aligned->len;
+            return (const char *) r->u.octet_aligned->buf;
+        }
+        else if (r->which == Z_External_grs1)
+        {
+            if (len) *len = 5;
+            return "GRS-1";
+        }
+       return 0;
+    }
+    else if (!strcmp (type, "xml") && 
+             npr->which == Z_NamePlusRecord_databaseRecord)
+    {
+        Z_External *r = (Z_External *) npr->u.databaseRecord;
+        oident *ent = oid_getentbyoid(r->direct_reference);
+        
+        if (r->which == Z_External_sutrs)
+        {
+            if (len) *len = r->u.sutrs->len;
+            return (const char *) r->u.sutrs->buf;
+        }
+        else if (r->which == Z_External_octet)
+        {
+            switch (ent->value)
+            {
+            case VAL_SOIF:
+            case VAL_HTML:
+            case VAL_SUTRS:
+                break;
+            case VAL_TEXT_XML:
+            case VAL_APPLICATION_XML:
+                break;
+            default:
+                if (!rec->wrbuf_marc)
+                    rec->wrbuf_marc = wrbuf_alloc();
+                wrbuf_rewind (rec->wrbuf_marc);
+                if (yaz_marc_decode ((const char *)
+                                     r->u.octet_aligned->buf,
+                                     rec->wrbuf_marc, 0,
+                                     r->u.octet_aligned->len,
+                                     1) > 0)
+                {
+                    if (len) *len = wrbuf_len(rec->wrbuf_marc);
+                    return wrbuf_buf(rec->wrbuf_marc);
+                }
+            }
+            if (len) *len = r->u.octet_aligned->len;
+            return (const char *) r->u.octet_aligned->buf;
+        }
+        else if (r->which == Z_External_grs1)
+        {
+            if (len) *len = 5;
+            return "GRS-1";
+        }
+       return 0;
+    }
+    else if (!strcmp (type, "raw"))
+    {
+       if (npr->which == Z_NamePlusRecord_databaseRecord)
+       {
+           Z_External *r = (Z_External *) npr->u.databaseRecord;
+           
+           if (r->which == Z_External_sutrs)
+           {
+               if (len) *len = r->u.sutrs->len;
+               return (const char *) r->u.sutrs->buf;
+           }
+           else if (r->which == Z_External_octet)
+           {
+               if (len) *len = r->u.octet_aligned->len;
+               return (const char *) r->u.octet_aligned->buf;
+           }
+           else /* grs-1, explain, ... */
+           {
+               if (len) *len = -1;
+                return (const char *) npr->u.databaseRecord;
+           }
+       }
+       return 0;
+    }
+    else if (!strcmp (type, "ext"))
+    {
+       if (npr->which == Z_NamePlusRecord_databaseRecord)
+            return (const char *) npr->u.databaseRecord;
+       return 0;
+    }
+    return 0;
+}
+
+static void record_cache_add (ZOOM_resultset r, Z_NamePlusRecord *npr, int pos)
+{
+    ZOOM_record_cache rc;
+    const char *elementSetName =
+        ZOOM_resultset_option_get (r, "elementSetName");
+    const char *syntax = 
+        ZOOM_resultset_option_get (r, "preferredRecordSyntax");
+    
+
+    for (rc = r->record_cache; rc; rc = rc->next)
+    {
+       if (pos == rc->pos)
+       {
+           if ((!elementSetName && !rc->elementSetName)
+               || (elementSetName && rc->elementSetName &&
+                   !strcmp (elementSetName, rc->elementSetName)))
+           {
+                if ((!syntax && !rc->syntax)
+                    || (syntax && rc->syntax &&
+                        !strcmp (syntax, rc->syntax)))
+                {
+                    /* not destroying rc->npr (it's handled by nmem )*/
+                    rc->rec.npr = npr;
+                    /* keeping wrbuf_marc too */
+                    return;
+                }
+           }
+       }
+    }
+    rc = (ZOOM_record_cache) odr_malloc (r->odr, sizeof(*rc));
+    rc->rec.npr = npr; 
+    rc->rec.odr = 0;
+    rc->rec.wrbuf_marc = 0;
+    if (elementSetName)
+       rc->elementSetName = odr_strdup (r->odr, elementSetName);
+    else
+       rc->elementSetName = 0;
+
+    if (syntax)
+       rc->syntax = odr_strdup (r->odr, syntax);
+    else
+       rc->syntax = 0;
+
+    rc->pos = pos;
+    rc->next = r->record_cache;
+    r->record_cache = rc;
+}
+
+static ZOOM_record record_cache_lookup (ZOOM_resultset r, int pos)
+{
+    ZOOM_record_cache rc;
+    const char *elementSetName =
+        ZOOM_resultset_option_get (r, "elementSetName");
+    const char *syntax = 
+        ZOOM_resultset_option_get (r, "preferredRecordSyntax");
+    
+    for (rc = r->record_cache; rc; rc = rc->next)
+    {
+       if (pos == rc->pos)
+       {
+           if ((!elementSetName && !rc->elementSetName)
+               || (elementSetName && rc->elementSetName &&
+                   !strcmp (elementSetName, rc->elementSetName)))
+            {
+                if ((!syntax && !rc->syntax)
+                    || (syntax && rc->syntax &&
+                        !strcmp (syntax, rc->syntax)))
+                    return &rc->rec;
+            }
+       }
+    }
+    return 0;
+}
+                                            
+static void handle_records (ZOOM_connection c, Z_Records *sr,
+                           int present_phase)
+{
+    ZOOM_resultset resultset;
+
+    if (!c->tasks)
+       return ;
+    switch (c->tasks->which)
+    {
+    case ZOOM_TASK_SEARCH:
+        resultset = c->tasks->u.search.resultset;
+        break;
+    case ZOOM_TASK_RETRIEVE:
+        resultset = c->tasks->u.retrieve.resultset;        
+       break;
+    default:
+        return;
+    }
+    if (sr && sr->which == Z_Records_NSD)
+    {
+       Z_DiagRec dr, *dr_p = &dr;
+       dr.which = Z_DiagRec_defaultFormat;
+       dr.u.defaultFormat = sr->u.nonSurrogateDiagnostic;
+       
+       response_diag (c, dr_p);
+    }
+    else if (sr && sr->which == Z_Records_multipleNSD)
+    {
+       if (sr->u.multipleNonSurDiagnostics->num_diagRecs >= 1)
+           response_diag(c, sr->u.multipleNonSurDiagnostics->diagRecs[0]);
+       else
+           c->error = ZOOM_ERROR_DECODE;
+    }
+    else 
+    {
+       if (resultset->count + resultset->start > resultset->size)
+           resultset->count = resultset->size - resultset->start;
+       if (resultset->count < 0)
+           resultset->count = 0;
+       if (sr && sr->which == Z_Records_DBOSD)
+       {
+           int i;
+           NMEM nmem = odr_extract_mem (c->odr_in);
+           Z_NamePlusRecordList *p =
+               sr->u.databaseOrSurDiagnostics;
+           for (i = 0; i<p->num_records; i++)
+           {
+               record_cache_add (resultset, p->records[i],
+                                  i+ resultset->start);
+           }
+           /* transfer our response to search_nmem .. we need it later */
+           nmem_transfer (resultset->odr->mem, nmem);
+           nmem_destroy (nmem);
+           if (present_phase && p->num_records == 0)
+           {
+               /* present response and we didn't get any records! */
+               c->error = ZOOM_ERROR_DECODE;
+           }
+       }
+       else if (present_phase)
+       {
+           /* present response and we didn't get any records! */
+           c->error = ZOOM_ERROR_DECODE;
+       }
+    }
+}
+
+static void handle_present_response (ZOOM_connection c, Z_PresentResponse *pr)
+{
+    handle_records (c, pr->records, 1);
+}
+
+static void handle_search_response (ZOOM_connection c, Z_SearchResponse *sr)
+{
+    ZOOM_resultset resultset;
+
+    yaz_log (LOG_DEBUG, "got search response");
+
+    if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
+       return ;
+
+    resultset = c->tasks->u.search.resultset;
+
+    resultset->size = *sr->resultCount;
+    handle_records (c, sr->records, 0);
+}
+
+static void sort_response (ZOOM_connection c, Z_SortResponse *res)
+{
+    if (res->diagnostics && res->num_diagnostics > 0)
+       response_diag (c, res->diagnostics[0]);
+}
+
+static int scan_response (ZOOM_connection c, Z_ScanResponse *res)
+{
+    NMEM nmem = odr_extract_mem (c->odr_in);
+    ZOOM_scanset scan;
+
+    if (!c->tasks || c->tasks->which != ZOOM_TASK_SCAN)
+        return 0;
+    scan = c->tasks->u.scan.scan;
+
+    if (res->entries && res->entries->nonsurrogateDiagnostics)
+        response_diag(c, res->entries->nonsurrogateDiagnostics[0]);
+    scan->scan_response = res;
+    nmem_transfer (scan->odr->mem, nmem);
+    if (res->stepSize)
+        ZOOM_options_set_int (scan->options, "stepSize", *res->stepSize);
+    if (res->positionOfTerm)
+        ZOOM_options_set_int (scan->options, "position", *res->positionOfTerm);
+    if (res->scanStatus)
+        ZOOM_options_set_int (scan->options, "scanStatus", *res->scanStatus);
+    if (res->numberOfEntriesReturned)
+        ZOOM_options_set_int (scan->options, "number",
+                              *res->numberOfEntriesReturned);
+    nmem_destroy (nmem);
+    return 1;
+}
+
+static int send_sort (ZOOM_connection c)
+{
+    ZOOM_resultset  resultset;
+
+    if (!c->tasks || c->tasks->which != ZOOM_TASK_SEARCH)
+       return 0;
+
+    resultset = c->tasks->u.search.resultset;
+
+    if (c->error)
+    {
+       resultset->r_sort_spec = 0;
+       return 0;
+    }
+    if (resultset->r_sort_spec)
+    {
+       Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_sortRequest);
+       Z_SortRequest *req = apdu->u.sortRequest;
+       
+       req->num_inputResultSetNames = 1;
+       req->inputResultSetNames = (Z_InternationalString **)
+           odr_malloc (c->odr_out, sizeof(*req->inputResultSetNames));
+       req->inputResultSetNames[0] =
+            odr_strdup (c->odr_out, resultset->setname);
+       req->sortedResultSetName = odr_strdup (c->odr_out, resultset->setname);
+       req->sortSequence = resultset->r_sort_spec;
+       resultset->r_sort_spec = 0;
+       send_APDU (c, apdu);
+       return 1;
+    }
+    return 0;
+}
+
+static int send_present (ZOOM_connection c)
+{
+    Z_APDU *apdu = 0;
+    Z_PresentRequest *req = 0;
+    int i = 0;
+    const char *syntax = 0;
+    const char *elementSetName = 0;
+    const char *schema = 0;
+    ZOOM_resultset  resultset;
+
+    if (!c->tasks)
+       return 0;
+
+    switch (c->tasks->which)
+    {
+    case ZOOM_TASK_SEARCH:
+        resultset = c->tasks->u.search.resultset;
+        break;
+    case ZOOM_TASK_RETRIEVE:
+        resultset = c->tasks->u.retrieve.resultset;
+        resultset->start = c->tasks->u.retrieve.start;
+        resultset->count = c->tasks->u.retrieve.count;
+
+        if (resultset->start >= resultset->size)
+            return 0;
+        if (resultset->start + resultset->count > resultset->size)
+            resultset->count = resultset->size - resultset->start;
+       break;
+    default:
+        return 0;
+    }
+
+    syntax = ZOOM_resultset_option_get (resultset, "preferredRecordSyntax");
+    elementSetName = ZOOM_resultset_option_get (resultset, "elementSetName");
+    schema = ZOOM_resultset_option_get (resultset, "schema");
+
+    if (c->error)                  /* don't continue on error */
+       return 0;
+    if (resultset->start < 0)
+       return 0;
+    for (i = 0; i<resultset->count; i++)
+    {
+       ZOOM_record rec =
+           record_cache_lookup (resultset, i + resultset->start);
+       if (!rec)
+           break;
+    }
+    if (i == resultset->count)
+       return 0;
+
+    apdu = zget_APDU(c->odr_out, Z_APDU_presentRequest);
+    req = apdu->u.presentRequest;
+
+    resultset->start += i;
+    resultset->count -= i;
+    *req->resultSetStartPoint = resultset->start + 1;
+    *req->numberOfRecordsRequested = resultset->count;
+    assert (*req->numberOfRecordsRequested > 0);
+
+    if (syntax && *syntax)
+       req->preferredRecordSyntax =
+           yaz_str_to_z3950oid (c->odr_out, CLASS_RECSYN, syntax);
+
+    if (schema && *schema)
+    {
+       Z_RecordComposition *compo = (Z_RecordComposition *)
+            odr_malloc (c->odr_out, sizeof(*compo));
+
+        req->recordComposition = compo;
+        compo->which = Z_RecordComp_complex;
+        compo->u.complex = (Z_CompSpec *)
+            odr_malloc(c->odr_out, sizeof(*compo->u.complex));
+        compo->u.complex->selectAlternativeSyntax = (bool_t *) 
+            odr_malloc(c->odr_out, sizeof(bool_t));
+        *compo->u.complex->selectAlternativeSyntax = 0;
+
+        compo->u.complex->generic = (Z_Specification *)
+            odr_malloc(c->odr_out, sizeof(*compo->u.complex->generic));
+
+        compo->u.complex->generic->schema = (Odr_oid *)
+            yaz_str_to_z3950oid (c->odr_out, CLASS_SCHEMA, schema);
+
+        if (!compo->u.complex->generic->schema)
+        {
+            /* OID wasn't a schema! Try record syntax instead. */
+
+            compo->u.complex->generic->schema = (Odr_oid *)
+                yaz_str_to_z3950oid (c->odr_out, CLASS_RECSYN, schema);
+        }
+        if (elementSetName && *elementSetName)
+        {
+            compo->u.complex->generic->elementSpec = (Z_ElementSpec *)
+                odr_malloc(c->odr_out, sizeof(Z_ElementSpec));
+            compo->u.complex->generic->elementSpec->which =
+                Z_ElementSpec_elementSetName;
+            compo->u.complex->generic->elementSpec->u.elementSetName =
+                odr_strdup (c->odr_out, elementSetName);
+        }
+        else
+            compo->u.complex->generic->elementSpec = 0;
+        compo->u.complex->num_dbSpecific = 0;
+        compo->u.complex->dbSpecific = 0;
+        compo->u.complex->num_recordSyntax = 0;
+        compo->u.complex->recordSyntax = 0;
+    }
+    else if (elementSetName && *elementSetName)
+    {
+       Z_ElementSetNames *esn = (Z_ElementSetNames *)
+            odr_malloc (c->odr_out, sizeof(*esn));
+       Z_RecordComposition *compo = (Z_RecordComposition *)
+            odr_malloc (c->odr_out, sizeof(*compo));
+       
+       esn->which = Z_ElementSetNames_generic;
+       esn->u.generic = odr_strdup (c->odr_out, elementSetName);
+       compo->which = Z_RecordComp_simple;
+       compo->u.simple = esn;
+       req->recordComposition = compo;
+    }
+    req->resultSetId = odr_strdup(c->odr_out, resultset->setname);
+    send_APDU (c, apdu);
+    return 1;
+}
+
+ZOOM_API(ZOOM_scanset)
+ZOOM_connection_scan (ZOOM_connection c, const char *start)
+{
+    ZOOM_scanset scan = (ZOOM_scanset) xmalloc (sizeof(*scan));
+
+    scan->connection = c;
+    scan->odr = odr_createmem (ODR_DECODE);
+    scan->options = ZOOM_options_create_with_parent (c->options);
+    scan->refcount = 1;
+    scan->scan_response = 0;
+
+    if ((scan->termListAndStartPoint =
+         p_query_scan(scan->odr, PROTO_Z3950, &scan->attributeSet,
+                      start)))
+    {
+        ZOOM_task task = ZOOM_connection_add_task (c, ZOOM_TASK_SCAN);
+        task->u.scan.scan = scan;
+        
+        (scan->refcount)++;
+        if (!c->async)
+        {
+            while (ZOOM_event (1, &c))
+                ;
+        }
+    }
+    return scan;
+}
+
+ZOOM_API(void)
+ZOOM_scanset_destroy (ZOOM_scanset scan)
+{
+    if (!scan)
+        return;
+    (scan->refcount)--;
+    if (scan->refcount == 0)
+    {
+        odr_destroy (scan->odr);
+        
+        ZOOM_options_destroy (scan->options);
+        xfree (scan);
+    }
+}
+
+static int send_package (ZOOM_connection c)
+{
+    ZOOM_Event event;
+    if (!c->tasks)
+        return 0;
+    assert (c->tasks->which == ZOOM_TASK_PACKAGE);
+
+    event = ZOOM_Event_create (ZOOM_EVENT_SEND_APDU);
+    ZOOM_connection_put_event (c, event);
+
+    do_write_ex (c, c->tasks->u.package->buf_out,
+                 c->tasks->u.package->len_out);
+    return 1;
+}
+
+static int send_scan (ZOOM_connection c)
+{
+    ZOOM_scanset scan;
+    Z_APDU *apdu = zget_APDU(c->odr_out, Z_APDU_scanRequest);
+    Z_ScanRequest *req = apdu->u.scanRequest;
+    if (!c->tasks)
+        return 0;
+    assert (c->tasks->which == ZOOM_TASK_SCAN);
+    scan = c->tasks->u.scan.scan;
+
+    req->termListAndStartPoint = scan->termListAndStartPoint;
+    req->attributeSet = scan->attributeSet;
+
+    *req->numberOfTermsRequested =
+        ZOOM_options_get_int(scan->options, "number", 10);
+
+    req->preferredPositionInResponse =
+        odr_intdup (c->odr_out,
+                    ZOOM_options_get_int(scan->options, "position", 1));
+
+    req->stepSize =
+        odr_intdup (c->odr_out,
+                    ZOOM_options_get_int(scan->options, "stepSize", 0));
+    
+    req->databaseNames = set_DatabaseNames (c, scan->options, 
+                                            &req->num_databaseNames);
+
+    send_APDU (c, apdu);
+
+    return 1;
+}
+
+ZOOM_API(size_t)
+ZOOM_scanset_size (ZOOM_scanset scan)
+{
+    if (!scan || !scan->scan_response || !scan->scan_response->entries)
+        return 0;
+    return scan->scan_response->entries->num_entries;
+}
+
+ZOOM_API(const char *)
+ZOOM_scanset_term (ZOOM_scanset scan, size_t pos,
+                               int *occ, int *len)
+{
+    const char *term = 0;
+    size_t noent = ZOOM_scanset_size (scan);
+    Z_ScanResponse *res = scan->scan_response;
+    
+    *len = 0;
+    *occ = 0;
+    if (pos >= noent)
+        return 0;
+    if (res->entries->entries[pos]->which == Z_Entry_termInfo)
+    {
+        Z_TermInfo *t = res->entries->entries[pos]->u.termInfo;
+        
+        if (t->term->which == Z_Term_general)
+        {
+            term = (const char *) t->term->u.general->buf;
+            *len = t->term->u.general->len;
+        }
+        *occ = t->globalOccurrences ? *t->globalOccurrences : 0;
+    }
+    return term;
+}
+
+ZOOM_API(const char *)
+ZOOM_scanset_option_get (ZOOM_scanset scan, const char *key)
+{
+    return ZOOM_options_get (scan->options, key);
+}
+
+ZOOM_API(void)
+ZOOM_scanset_option_set (ZOOM_scanset scan, const char *key,
+                              const char *val)
+{
+    ZOOM_options_set (scan->options, key, val);
+}
+
+
+
+static Z_APDU *create_es_package (ZOOM_package p, int type)
+{
+    const char *str;
+    Z_APDU *apdu = zget_APDU(p->odr_out, Z_APDU_extendedServicesRequest);
+    Z_ExtendedServicesRequest *req = apdu->u.extendedServicesRequest;
+    
+    *req->function = Z_ExtendedServicesRequest_create;
+    
+    str = ZOOM_options_get(p->options, "package-name");
+    if (str && *str)
+        req->packageName = nmem_strdup (p->odr_out->mem, str);
+    
+    str = ZOOM_options_get(p->options, "user-id");
+    if (str)
+        req->userId = nmem_strdup (p->odr_out->mem, str);
+    
+    req->packageType = yaz_oidval_to_z3950oid(p->odr_out, CLASS_EXTSERV,
+                                              type);
+
+    str = ZOOM_options_get(p->options, "function");
+    if (str)
+    {
+        if (!strcmp (str, "create"))
+            *req->function = 1;
+        if (!strcmp (str, "delete"))
+            *req->function = 2;
+        if (!strcmp (str, "modify"))
+            *req->function = 3;
+    }
+    return apdu;
+}
+
+static const char *ill_array_lookup (void *clientData, const char *idx)
+{
+    ZOOM_package p = (ZOOM_package) clientData;
+    return ZOOM_options_get (p->options, idx+4);
+}
+
+static Z_External *encode_ill_request (ZOOM_package p)
+{
+    ODR out = p->odr_out;
+    ILL_Request *req;
+    Z_External *r = 0;
+    struct ill_get_ctl ctl;
+       
+    ctl.odr = p->odr_out;
+    ctl.clientData = p;
+    ctl.f = ill_array_lookup;
+       
+    req = ill_get_ILLRequest(&ctl, "ill", 0);
+       
+    if (!ill_Request (out, &req, 0, 0))
+    {
+        int ill_request_size;
+        char *ill_request_buf = odr_getbuf (out, &ill_request_size, 0);
+        if (ill_request_buf)
+            odr_setbuf (out, ill_request_buf, ill_request_size, 1);
+        return 0;
+    }
+    else
+    {
+        oident oid;
+        int illRequest_size = 0;
+        char *illRequest_buf = odr_getbuf (out, &illRequest_size, 0);
+               
+        oid.proto = PROTO_GENERAL;
+        oid.oclass = CLASS_GENERAL;
+        oid.value = VAL_ISO_ILL_1;
+               
+        r = (Z_External *) odr_malloc (out, sizeof(*r));
+        r->direct_reference = odr_oiddup(out,oid_getoidbyent(&oid)); 
+        r->indirect_reference = 0;
+        r->descriptor = 0;
+        r->which = Z_External_single;
+               
+        r->u.single_ASN1_type = (Odr_oct *)
+            odr_malloc (out, sizeof(*r->u.single_ASN1_type));
+        r->u.single_ASN1_type->buf = odr_malloc (out, illRequest_size);
+        r->u.single_ASN1_type->len = illRequest_size;
+        r->u.single_ASN1_type->size = illRequest_size;
+        memcpy (r->u.single_ASN1_type->buf, illRequest_buf, illRequest_size);
+    }
+    return r;
+}
+
+static Z_ItemOrder *encode_item_order(ZOOM_package p)
+{
+    Z_ItemOrder *req = odr_malloc (p->odr_out, sizeof(*req));
+    const char *str;
+    
+    req->which=Z_IOItemOrder_esRequest;
+    req->u.esRequest = (Z_IORequest *) 
+        odr_malloc(p->odr_out,sizeof(Z_IORequest));
+
+    /* to keep part ... */
+    req->u.esRequest->toKeep = (Z_IOOriginPartToKeep *)
+       odr_malloc(p->odr_out,sizeof(Z_IOOriginPartToKeep));
+    req->u.esRequest->toKeep->supplDescription = 0;
+    req->u.esRequest->toKeep->contact =
+        odr_malloc (p->odr_out, sizeof(*req->u.esRequest->toKeep->contact));
+       
+    str = ZOOM_options_get(p->options, "contact-name");
+    req->u.esRequest->toKeep->contact->name = str ?
+        nmem_strdup (p->odr_out->mem, str) : 0;
+       
+    str = ZOOM_options_get(p->options, "contact-phone");
+    req->u.esRequest->toKeep->contact->phone = str ?
+        nmem_strdup (p->odr_out->mem, str) : 0;
+       
+    str = ZOOM_options_get(p->options, "contact-email");
+    req->u.esRequest->toKeep->contact->email = str ?
+        nmem_strdup (p->odr_out->mem, str) : 0;
+       
+    req->u.esRequest->toKeep->addlBilling = 0;
+       
+    /* not to keep part ... */
+    req->u.esRequest->notToKeep = (Z_IOOriginPartNotToKeep *)
+        odr_malloc(p->odr_out,sizeof(Z_IOOriginPartNotToKeep));
+       
+    req->u.esRequest->notToKeep->resultSetItem = (Z_IOResultSetItem *)
+        odr_malloc(p->odr_out, sizeof(Z_IOResultSetItem));
+
+    str = ZOOM_options_get(p->options, "itemorder-setname");
+    if (!str)
+        str = "default";
+    req->u.esRequest->notToKeep->resultSetItem->resultSetId =
+        nmem_strdup (p->odr_out->mem, str);
+    req->u.esRequest->notToKeep->resultSetItem->item =
+        (int *) odr_malloc(p->odr_out, sizeof(int));
+       
+    str = ZOOM_options_get(p->options, "itemorder-item");
+    *req->u.esRequest->notToKeep->resultSetItem->item =
+        (str ? atoi(str) : 1);
+    
+    req->u.esRequest->notToKeep->itemRequest = encode_ill_request(p);
+    
+    return req;
+}
+
+ZOOM_API(void)
+    ZOOM_package_send (ZOOM_package p, const char *type)
+{
+    Z_APDU *apdu = 0;
+    ZOOM_connection c;
+    if (!p)
+        return;
+    c = p->connection;
+    odr_reset (p->odr_out);
+    xfree (p->buf_out);
+    p->buf_out = 0;
+    if (!strcmp(type, "itemorder"))
+    {
+        Z_External *r;
+        apdu = create_es_package (p, VAL_ITEMORDER);
+        if (apdu)
+        {
+            r = odr_malloc (p->odr_out, sizeof(*r));
+            
+            r->direct_reference =
+                yaz_oidval_to_z3950oid(p->odr_out, CLASS_EXTSERV,
+                                       VAL_ITEMORDER);
+            r->descriptor = 0;
+            r->which = Z_External_itemOrder;
+            r->indirect_reference = 0;
+            r->u.itemOrder = encode_item_order (p);
+
+            apdu->u.extendedServicesRequest->taskSpecificParameters = r;
+        }
+    }
+    if (apdu)
+    {
+        if (encode_APDU(p->connection, apdu, p->odr_out) == 0)
+        {
+            char *buf;
+
+            ZOOM_task task = ZOOM_connection_add_task (c, ZOOM_TASK_PACKAGE);
+            task->u.package = p;
+            buf = odr_getbuf(p->odr_out, &p->len_out, 0);
+            p->buf_out = xmalloc (p->len_out);
+            memcpy (p->buf_out, buf, p->len_out);
+            
+            (p->refcount)++;
+            if (!c->async)
+            {
+                while (ZOOM_event (1, &c))
+                    ;
+            }
+        }
+    }
+}
+
+ZOOM_API(ZOOM_package)
+    ZOOM_connection_package (ZOOM_connection c, ZOOM_options options)
+{
+    ZOOM_package p = (ZOOM_package) xmalloc (sizeof(*p));
+
+    p->connection = c;
+    p->odr_out = odr_createmem (ODR_ENCODE);
+    p->options = ZOOM_options_create_with_parent2 (options, c->options);
+    p->refcount = 1;
+    p->buf_out = 0;
+    p->len_out = 0;
+    return p;
+}
+
+ZOOM_API(void)
+    ZOOM_package_destroy(ZOOM_package p)
+{
+    if (!p)
+        return;
+    (p->refcount)--;
+    if (p->refcount == 0)
+    {
+        odr_destroy (p->odr_out);
+        xfree (p->buf_out);
+        
+        ZOOM_options_destroy (p->options);
+        xfree (p);
+    }
+}
+
+ZOOM_API(const char *)
+ZOOM_package_option_get (ZOOM_package p, const char *key)
+{
+    return ZOOM_options_get (p->options, key);
+}
+
+ZOOM_API(void)
+ZOOM_package_option_set (ZOOM_package p, const char *key,
+                              const char *val)
+{
+    ZOOM_options_set (p->options, key, val);
+}
+
+static int ZOOM_connection_exec_task (ZOOM_connection c)
+{
+    ZOOM_task task = c->tasks;
+
+    yaz_log (LOG_DEBUG, "ZOOM_connection_exec_task");
+    if (!task)
+       return 0;
+    if (c->error != ZOOM_ERROR_NONE ||
+        (!c->cs && task->which != ZOOM_TASK_CONNECT))
+    {
+       ZOOM_connection_remove_tasks (c);
+       return 0;
+    }
+    yaz_log (LOG_DEBUG, "ZOOM_connection_exec_task type=%d run=%d",
+             task->which, task->running);
+    if (task->running)
+       return 0;
+    task->running = 1;
+    switch (task->which)
+    {
+    case ZOOM_TASK_SEARCH:
+       /* see if search hasn't been sent yet. */
+       if (ZOOM_connection_send_search (c))
+           return 1;
+       break;
+    case ZOOM_TASK_RETRIEVE:
+       if (send_present (c))
+           return 1;
+       break;
+    case ZOOM_TASK_CONNECT:
+        if (do_connect(c))
+            return 1;
+        break;
+    case ZOOM_TASK_SCAN:
+        if (send_scan(c))
+            return 1;
+        break;
+    case ZOOM_TASK_PACKAGE:
+        if (send_package(c))
+            return 1;
+    }
+    ZOOM_connection_remove_task (c);
+    return 0;
+}
+
+static int send_sort_present (ZOOM_connection c)
+{
+    int r = send_sort (c);
+    if (!r)
+       r = send_present (c);
+    return r;
+}
+
+static int es_response (ZOOM_connection c,
+                        Z_ExtendedServicesResponse *res)
+{
+    if (!c->tasks || c->tasks->which != ZOOM_TASK_PACKAGE)
+        return 0;
+    if (res->diagnostics && res->num_diagnostics > 0)
+        response_diag(c, res->diagnostics[0]);
+    if (res->taskPackage &&
+        res->taskPackage->which == Z_External_extendedService)
+    {
+        Z_TaskPackage *taskPackage = res->taskPackage->u.extendedService;
+        Odr_oct *id = taskPackage->targetReference;
+        
+        if (id)
+            ZOOM_options_setl (c->tasks->u.package->options,
+                               "targetReference", id->buf, id->len);
+    }
+    return 1;
+}
+
+
+static void handle_apdu (ZOOM_connection c, Z_APDU *apdu)
+{
+    Z_InitResponse *initrs;
+    
+    c->mask = 0;
+    yaz_log (LOG_DEBUG, "hande_apdu type=%d", apdu->which);
+    switch(apdu->which)
+    {
+    case Z_APDU_initResponse:
+       initrs = apdu->u.initResponse;
+       if (!*initrs->result)
+       {
+           c->error = ZOOM_ERROR_INIT;
+       }
+       else
+       {
+           char *cookie =
+               yaz_oi_get_string_oidval (&apdu->u.initResponse->otherInfo,
+                                         VAL_COOKIE, 1, 0);
+           xfree (c->cookie_in);
+           c->cookie_in = 0;
+           if (cookie)
+               c->cookie_in = xstrdup(cookie);
+            if (ODR_MASK_GET(initrs->options, Z_Options_namedResultSets) &&
+                ODR_MASK_GET(initrs->protocolVersion, Z_ProtocolVersion_3))
+                c->support_named_resultsets = 1;
+            if (c->tasks)
+            {
+                assert (c->tasks->which == ZOOM_TASK_CONNECT);
+                ZOOM_connection_remove_task (c);
+            }
+           ZOOM_connection_exec_task (c);
+       }
+       if (ODR_MASK_GET(initrs->options, Z_Options_negotiationModel))
+       {
+            NMEM tmpmem = nmem_create();
+            Z_CharSetandLanguageNegotiation *p =
+                yaz_get_charneg_record(initrs->otherInfo);
+            
+            if (p)
+            {
+                char *charset=NULL, *lang=NULL;
+                int selected;
+                
+                yaz_get_response_charneg(tmpmem, p, &charset, &lang, &selected);
+                yaz_log(LOG_DEBUG, "Target accepted: charset - %s,"
+                        "language - %s, select - %d",
+                        charset, lang, selected);
+                
+                nmem_destroy(tmpmem);
+            }
+       }       
+       break;
+    case Z_APDU_searchResponse:
+       handle_search_response (c, apdu->u.searchResponse);
+       if (!send_sort_present (c))
+           ZOOM_connection_remove_task (c);
+       break;
+    case Z_APDU_presentResponse:
+       handle_present_response (c, apdu->u.presentResponse);
+       if (!send_present (c))
+           ZOOM_connection_remove_task (c);
+       break;
+    case Z_APDU_sortResponse:
+       sort_response (c, apdu->u.sortResponse);
+       if (!send_present (c))
+           ZOOM_connection_remove_task (c);
+        break;
+    case Z_APDU_scanResponse:
+        scan_response (c, apdu->u.scanResponse);
+        ZOOM_connection_remove_task (c);
+        break;
+    case Z_APDU_extendedServicesResponse:
+        es_response (c, apdu->u.extendedServicesResponse);
+        ZOOM_connection_remove_task (c);
+        break;
+    case Z_APDU_close:
+        if (c->reconnect_ok)
+        {
+            do_close(c);
+            c->tasks->running = 0;
+            ZOOM_connection_insert_task (c, ZOOM_TASK_CONNECT);
+        }
+        else
+        {
+            c->error = ZOOM_ERROR_CONNECTION_LOST;
+            do_close(c);
+        }
+        break;
+    default:
+        c->error = ZOOM_ERROR_DECODE;
+        do_close(c);
+    }
+}
+
+static int do_read (ZOOM_connection c)
+{
+    int r;
+    Z_APDU *apdu;
+    ZOOM_Event event;
+    
+    event = ZOOM_Event_create (ZOOM_EVENT_RECV_DATA);
+    ZOOM_connection_put_event (c, event);
+    
+    yaz_log (LOG_DEBUG, "do_read len=%d", c->len_in);
+
+    r = cs_get (c->cs, &c->buf_in, &c->len_in);
+    if (r == 1)
+       return 0;
+    if (r <= 0)
+    {
+        if (c->reconnect_ok)
+        {
+            do_close (c);
+            c->reconnect_ok = 0;
+            yaz_log (LOG_DEBUG, "reconnect read");
+            c->tasks->running = 0;
+            ZOOM_connection_insert_task (c, ZOOM_TASK_CONNECT);
+        }
+        else
+        {
+            c->error= ZOOM_ERROR_CONNECTION_LOST;
+            do_close (c);
+        }
+    }
+    else
+    {
+        ZOOM_Event event;
+       odr_reset (c->odr_in);
+       odr_setbuf (c->odr_in, c->buf_in, r, 0);
+        event = ZOOM_Event_create (ZOOM_EVENT_RECV_APDU);
+        ZOOM_connection_put_event (c, event);
+       if (!z_APDU (c->odr_in, &apdu, 0, 0))
+       {
+           c->error = ZOOM_ERROR_DECODE;
+           do_close (c);
+       }
+       else
+           handle_apdu (c, apdu);
+        c->reconnect_ok = 0;
+    }
+    return 1;
+}
+
+static int do_write_ex (ZOOM_connection c, char *buf_out, int len_out)
+{
+    int r;
+    ZOOM_Event event;
+    
+    event = ZOOM_Event_create(ZOOM_EVENT_SEND_DATA);
+    ZOOM_connection_put_event (c, event);
+
+    yaz_log (LOG_DEBUG, "do_write_ex len=%d", len_out);
+    if ((r=cs_put (c->cs, buf_out, len_out)) < 0)
+    {
+        if (c->reconnect_ok)
+        {
+            do_close (c);
+            c->reconnect_ok = 0;
+            yaz_log (LOG_DEBUG, "reconnect write");
+            c->tasks->running = 0;
+            ZOOM_connection_insert_task (c, ZOOM_TASK_CONNECT);
+            return 0;
+        }
+       if (c->state == STATE_CONNECTING)
+           c->error = ZOOM_ERROR_CONNECT;
+       else
+           c->error = ZOOM_ERROR_CONNECTION_LOST;
+       do_close (c);
+       return 1;
+    }
+    else if (r == 1)
+    {    
+        c->mask = ZOOM_SELECT_EXCEPT;
+        if (c->cs->io_pending & CS_WANT_WRITE)
+            c->mask += ZOOM_SELECT_WRITE;
+        if (c->cs->io_pending & CS_WANT_READ)
+            c->mask += ZOOM_SELECT_READ;
+        yaz_log (LOG_DEBUG, "do_write_ex 1 mask=%d", c->mask);
+    }
+    else
+    {
+        // c->reconnect_ok = 0;
+        c->mask = ZOOM_SELECT_READ|ZOOM_SELECT_EXCEPT;
+        yaz_log (LOG_DEBUG, "do_write_ex 2 mask=%d", c->mask);
+    }
+    return 0;
+}
+
+static int do_write(ZOOM_connection c)
+{
+    return do_write_ex (c, c->buf_out, c->len_out);
+}
+
+
+ZOOM_API(const char *)
+ZOOM_connection_option_get (ZOOM_connection c, const char *key)
+{
+    return ZOOM_options_get (c->options, key);
+}
+
+ZOOM_API(void)
+ZOOM_connection_option_set (ZOOM_connection c, const char *key,
+                                  const char *val)
+{
+    ZOOM_options_set (c->options, key, val);
+}
+
+ZOOM_API(const char *)
+ZOOM_resultset_option_get (ZOOM_resultset r, const char *key)
+{
+    return ZOOM_options_get (r->options, key);
+}
+
+ZOOM_API(void)
+ZOOM_resultset_option_set (ZOOM_resultset r, const char *key,
+                                  const char *val)
+{
+    ZOOM_options_set (r->options, key, val);
+}
+
+
+ZOOM_API(int)
+ZOOM_connection_errcode (ZOOM_connection c)
+{
+    return ZOOM_connection_error (c, 0, 0);
+}
+
+ZOOM_API(const char *)
+ZOOM_connection_errmsg (ZOOM_connection c)
+{
+    const char *msg;
+    ZOOM_connection_error (c, &msg, 0);
+    return msg;
+}
+
+ZOOM_API(const char *)
+ZOOM_connection_addinfo (ZOOM_connection c)
+{
+    const char *addinfo;
+    ZOOM_connection_error (c, 0, &addinfo);
+    return addinfo;
+}
+
+ZOOM_API(int)
+ZOOM_connection_error (ZOOM_connection c, const char **cp,
+                           const char **addinfo)
+{
+    int error = c->error;
+    if (cp)
+    {
+       switch (error)
+       {
+       case ZOOM_ERROR_NONE:
+           *cp = "No error"; break;
+       case ZOOM_ERROR_CONNECT:
+           *cp = "Connect failed"; break;
+       case ZOOM_ERROR_MEMORY:
+           *cp = "Out of memory"; break;
+       case ZOOM_ERROR_ENCODE:
+           *cp = "Encoding failed"; break;
+       case ZOOM_ERROR_DECODE:
+           *cp = "Decoding failed"; break;
+       case ZOOM_ERROR_CONNECTION_LOST:
+           *cp = "Connection lost"; break;
+       case ZOOM_ERROR_INIT:
+           *cp = "Init rejected"; break;
+       case ZOOM_ERROR_INTERNAL:
+           *cp = "Internal failure"; break;
+       case ZOOM_ERROR_TIMEOUT:
+           *cp = "Timeout"; break;
+       default:
+           *cp = diagbib1_str (error);
+       }
+    }
+    if (addinfo)
+    {
+       if (c->addinfo)
+           *addinfo = c->addinfo;
+       else
+           *addinfo = "";
+    }
+    return c->error;
+}
+
+static int ZOOM_connection_do_io(ZOOM_connection c, int mask)
+{
+    ZOOM_Event event = 0;
+    int r = cs_look(c->cs);
+    yaz_log (LOG_DEBUG, "ZOOM_connection_do_io c=%p mask=%d cs_look=%d",
+            c, mask, r);
+    
+    if (r == CS_NONE)
+    {
+        event = ZOOM_Event_create (ZOOM_EVENT_CONNECT);
+       c->error = ZOOM_ERROR_CONNECT;
+       do_close (c);
+        ZOOM_connection_put_event (c, event);
+    }
+    else if (r == CS_CONNECT)
+    {
+        int ret;
+        event = ZOOM_Event_create (ZOOM_EVENT_CONNECT);
+
+        ret = cs_rcvconnect (c->cs);
+        yaz_log (LOG_DEBUG, "cs_rcvconnect returned %d", ret);
+        if (ret == 1)
+        {
+            c->mask = ZOOM_SELECT_EXCEPT;
+            if (c->cs->io_pending & CS_WANT_WRITE)
+                c->mask += ZOOM_SELECT_WRITE;
+            if (c->cs->io_pending & CS_WANT_READ)
+                c->mask += ZOOM_SELECT_READ;
+            ZOOM_connection_put_event (c, event);
+        }
+        else if (ret == 0)
+        {
+            ZOOM_connection_put_event (c, event);
+            ZOOM_connection_send_init (c);
+            c->state = STATE_ESTABLISHED;
+        }
+        else
+        {
+            c->error = ZOOM_ERROR_CONNECT;
+            do_close (c);
+            ZOOM_connection_put_event (c, event);
+        }
+    }
+    else
+    {
+        if (mask & ZOOM_SELECT_READ)
+            do_read (c);
+        if (c->cs && (mask & ZOOM_SELECT_WRITE))
+            do_write (c);
+    }
+    return 1;
+}
+
+ZOOM_API(int)
+ZOOM_connection_last_event(ZOOM_connection cs)
+{
+    if (!cs)
+        return ZOOM_EVENT_NONE;
+    return cs->last_event;
+}
+
+ZOOM_API(int)
+ZOOM_event (int no, ZOOM_connection *cs)
+{
+    int timeout = 5000;
+#if HAVE_SYS_POLL_H
+    struct pollfd pollfds[1024];
+    ZOOM_connection poll_cs[1024];
+#else
+    struct timeval tv;
+    fd_set input, output, except;
+#endif
+    int i, r, nfds;
+    int max_fd = 0;
+
+    for (i = 0; i<no; i++)
+    {
+       ZOOM_connection c = cs[i];
+        ZOOM_Event event;
+       if (c && (event = ZOOM_connection_get_event(c)))
+        {
+            ZOOM_Event_destroy (event);
+           return i+1;
+        }
+    }
+    for (i = 0; i<no; i++)
+    {
+        ZOOM_connection c = cs[i];
+        ZOOM_Event event;
+        if (c && ZOOM_connection_exec_task (c))
+        {
+            if ((event = ZOOM_connection_get_event(c)))
+            {
+                ZOOM_Event_destroy (event);
+                return i+1;
+            }
+        }
+    }
+#if HAVE_SYS_POLL_H
+
+#else
+    FD_ZERO (&input);
+    FD_ZERO (&output);
+    FD_ZERO (&except);
+#endif
+    nfds = 0;
+    for (i = 0; i<no; i++)
+    {
+       ZOOM_connection c = cs[i];
+       int fd, mask;
+        int this_timeout;
+       
+       if (!c)
+           continue;
+       fd = z3950_connection_socket(c);
+       mask = z3950_connection_mask(c);
+
+       if (fd == -1)
+           continue;
+       if (max_fd < fd)
+           max_fd = fd;
+
+        this_timeout = ZOOM_options_get_int (c->options, "timeout", -1);
+        if (this_timeout != -1 && this_timeout < timeout)
+            timeout = this_timeout;
+#if HAVE_SYS_POLL_H
+        if (mask)
+        {
+            short poll_events = 0;
+
+            if (mask & ZOOM_SELECT_READ)
+                poll_events += POLLIN;
+            if (mask & ZOOM_SELECT_WRITE)
+                poll_events += POLLOUT;
+            if (mask & ZOOM_SELECT_EXCEPT)
+                poll_events += POLLERR;
+            pollfds[nfds].fd = fd;
+            pollfds[nfds].events = poll_events;
+            pollfds[nfds].revents = 0;
+            poll_cs[nfds] = c;
+            nfds++;
+        }
+#else
+       if (mask & ZOOM_SELECT_READ)
+       {
+           FD_SET (fd, &input);
+           nfds++;
+       }
+       if (mask & ZOOM_SELECT_WRITE)
+       {
+           FD_SET (fd, &output);
+           nfds++;
+       }
+       if (mask & ZOOM_SELECT_EXCEPT)
+       {
+           FD_SET (fd, &except);
+           nfds++;
+       }
+#endif
+    }
+    if (timeout >= 5000)
+        timeout = 30;
+
+    if (!nfds)
+        return 0;
+
+#if HAVE_SYS_POLL_H
+    r = poll (pollfds, nfds, timeout * 1000);
+    for (i = 0; i<nfds; i++)
+    {
+        ZOOM_connection c = poll_cs[i];
+        if (r && c->mask)
+        {
+            int mask = 0;
+            if (pollfds[i].revents & POLLIN)
+                mask += ZOOM_SELECT_READ;
+            if (pollfds[i].revents & POLLOUT)
+                mask += ZOOM_SELECT_WRITE;
+            if (pollfds[i].revents & POLLERR)
+                mask += ZOOM_SELECT_EXCEPT;
+            if (mask)
+                ZOOM_connection_do_io(c, mask);
+        }
+        else if (r == 0 && c->mask)
+        {
+            ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
+           /* timeout and this connection was waiting */
+           c->error = ZOOM_ERROR_TIMEOUT;
+            do_close (c);
+            ZOOM_connection_put_event(c, event);
+        }
+    }
+#else
+    tv.tv_sec = timeout;
+    tv.tv_usec = 0;
+    yaz_log (LOG_DEBUG, "select start");
+    r = select (max_fd+1, &input, &output, &except, &tv);
+    yaz_log (LOG_DEBUG, "select stop, returned r=%d", r);
+    for (i = 0; i<no; i++)
+    {
+       ZOOM_connection c = cs[i];
+       int fd, mask;
+
+       if (!c)
+           continue;
+       fd = z3950_connection_socket(c);
+       mask = 0;
+       if (r && c->mask)
+       {
+           /* no timeout and real socket */
+           if (FD_ISSET(fd, &input))
+               mask += ZOOM_SELECT_READ;
+           if (FD_ISSET(fd, &output))
+               mask += ZOOM_SELECT_WRITE;
+           if (FD_ISSET(fd, &except))
+               mask += ZOOM_SELECT_EXCEPT;
+           if (mask)
+               ZOOM_connection_do_io(c, mask);
+       }
+       if (r == 0 && c->mask)
+       {
+            ZOOM_Event event = ZOOM_Event_create(ZOOM_EVENT_TIMEOUT);
+           /* timeout and this connection was waiting */
+           c->error = ZOOM_ERROR_TIMEOUT;
+            do_close (c);
+            yaz_log (LOG_DEBUG, "timeout");
+            ZOOM_connection_put_event(c, event);
+       }
+    }
+#endif
+    for (i = 0; i<no; i++)
+    {
+       ZOOM_connection c = cs[i];
+        ZOOM_Event event;
+       if (c && (event = ZOOM_connection_get_event(c)))
+        {
+            ZOOM_Event_destroy (event);
+           return i+1;
+        }
+    }
+    return 0;
+}
diff --git a/zutil/zoom-opt.c b/zutil/zoom-opt.c
new file mode 100644 (file)
index 0000000..be0edd3
--- /dev/null
@@ -0,0 +1,184 @@
+/*
+ * $Id: zoom-opt.c,v 1.1 2002-09-16 18:45:14 adam Exp $
+ *
+ * ZOOM layer for C, options handling
+ */
+#include <assert.h>
+#include <yaz/xmalloc.h>
+#include <yaz/log.h>
+
+#include "zoom-p.h"
+
+ZOOM_API(ZOOM_options)
+ZOOM_options_create_with_parent (ZOOM_options parent)
+{
+    return ZOOM_options_create_with_parent2(parent, 0);
+}
+
+ZOOM_API(ZOOM_options)
+ZOOM_options_create (void)
+{
+    return ZOOM_options_create_with_parent (0);
+}
+
+
+ZOOM_API(ZOOM_options)
+ZOOM_options_create_with_parent2 (ZOOM_options parent1, ZOOM_options parent2)
+{
+    ZOOM_options opt = (ZOOM_options) xmalloc (sizeof(*opt));
+
+    opt->refcount = 1;
+    opt->callback_func = 0;
+    opt->callback_handle = 0;
+    opt->entries = 0;
+    opt->parent1= parent1;
+    if (parent1)
+       (parent1->refcount)++;
+    opt->parent2= parent2;
+    if (parent2)
+       (parent2->refcount)++;
+    return opt;
+}
+
+
+void ZOOM_options_addref (ZOOM_options opt)
+{
+    (opt->refcount)++;
+}
+
+ZOOM_API(ZOOM_options_callback)
+ZOOM_options_set_callback (
+    ZOOM_options opt,
+    ZOOM_options_callback callback_func,
+    void *callback_handle)
+{
+    ZOOM_options_callback callback_old;
+
+    assert (opt);
+    callback_old = opt->callback_func;
+    opt->callback_func = callback_func;
+    opt->callback_handle = callback_handle;
+    return callback_old;
+}
+
+ZOOM_API(void)
+ZOOM_options_destroy (ZOOM_options opt)
+{
+    if (!opt)
+       return;
+    (opt->refcount)--;
+    if (opt->refcount == 0)
+    {
+       struct ZOOM_options_entry *e;
+       
+       ZOOM_options_destroy (opt->parent1);
+       ZOOM_options_destroy (opt->parent2);
+       e = opt->entries;
+       while (e)
+       {
+           struct ZOOM_options_entry *e0 = e;
+           xfree (e->name);
+           xfree (e->value);
+           e = e->next;
+           xfree (e0);
+       }
+       xfree (opt);
+    }
+}
+
+ZOOM_API(void)
+ZOOM_options_setl (ZOOM_options opt, const char *name, const char *value,
+                   int len)
+{
+    struct ZOOM_options_entry **e;
+
+    e = &opt->entries;
+    while (*e)
+    {
+       if (!strcmp((*e)->name, name))
+       {
+           xfree ((*e)->value);
+            (*e)->value = 0;
+            if (value)
+            {
+                (*e)->value = xmalloc (len+1);
+                memcpy ((*e)->value, value, len);
+                (*e)->value[len] = '\0';
+            }
+           return;
+       }
+       e = &(*e)->next;
+    }
+    *e = (struct ZOOM_options_entry *) xmalloc (sizeof(**e));
+    (*e)->name = xstrdup (name);
+    (*e)->value = 0;
+    if (value)
+    {
+        (*e)->value = xmalloc (len+1);
+        memcpy ((*e)->value, value, len);
+        (*e)->value[len] = '\0';
+    }
+    (*e)->next = 0;
+}
+
+ZOOM_API(void)
+ZOOM_options_set (ZOOM_options opt, const char *name, const char *value)
+{
+    ZOOM_options_setl (opt, name, value, value ? strlen(value): 0);
+}
+
+ZOOM_API(const char *)
+ZOOM_options_get (ZOOM_options opt, const char *name)
+{
+    const char *v = 0;
+    if (!opt)
+       return 0;
+    if (opt->callback_func)
+       v = (*opt->callback_func)(opt->callback_handle, name);
+    if (!v)
+    {
+       struct ZOOM_options_entry *e;
+       for (e = opt->entries; e; e = e->next)
+           if (!strcmp(e->name, name))
+           {
+               v = e->value;
+               break;
+           }
+    }
+    if (!v)
+       v = ZOOM_options_get(opt->parent1, name);
+    if (!v)
+       v = ZOOM_options_get(opt->parent2, name);
+    return v;
+}
+
+ZOOM_API(int)
+ZOOM_options_get_bool (ZOOM_options opt, const char *name, int defa)
+{
+    const char *v = ZOOM_options_get (opt, name);
+
+    if (!v)
+       return defa;
+    if (!strcmp (v, "1") || !strcmp(v, "T"))
+       return 1;
+    return 0;
+}
+
+ZOOM_API(int)
+ZOOM_options_get_int (ZOOM_options opt, const char *name, int defa)
+{
+    const char *v = ZOOM_options_get (opt, name);
+
+    if (!v || !*v)
+       return defa;
+    return atoi(v);
+}
+
+ZOOM_API(void)
+ZOOM_options_set_int(ZOOM_options opt, const char *name, int value)
+{
+    char s[40];
+
+    sprintf (s, "%d", value);
+    ZOOM_options_set (opt, name, s);
+}
diff --git a/zutil/zoom-p.h b/zutil/zoom-p.h
new file mode 100644 (file)
index 0000000..b6cf2ae
--- /dev/null
@@ -0,0 +1,157 @@
+/*
+ * Private C header for ZOOM C.
+ * $Id: zoom-p.h,v 1.1 2002-09-16 18:45:14 adam Exp $
+ */
+#include <yaz/proto.h>
+#include <yaz/comstack.h>
+#include <yaz/wrbuf.h>
+#include <yaz/zoom.h>
+#include <yaz/sortspec.h>
+
+typedef struct ZOOM_Event_p *ZOOM_Event;
+
+struct ZOOM_query_p {
+    Z_Query *query;
+    Z_SortKeySpecList *sort_spec;
+    int refcount;
+    ODR odr;
+};
+
+#define STATE_IDLE 0
+#define STATE_CONNECTING 1
+#define STATE_ESTABLISHED 2
+
+#define ZOOM_SELECT_READ 1
+#define ZOOM_SELECT_WRITE 2
+#define ZOOM_SELECT_EXCEPT 4
+
+struct ZOOM_connection_p {
+    COMSTACK cs;
+    char *host_port;
+    int error;
+    char *addinfo;
+    int state;
+    int mask;
+    int reconnect_ok;
+    ODR odr_in;
+    ODR odr_out;
+    char *buf_in;
+    int len_in;
+    char *buf_out;
+    int len_out;
+    char *proxy;
+    char *charset;
+    char *lang;
+    char *cookie_out;
+    char *cookie_in;
+    char *client_IP;
+    int async;
+    int support_named_resultsets;
+    int last_event;
+    ZOOM_task tasks;
+    ZOOM_options options;
+    ZOOM_resultset resultsets;
+    ZOOM_Event m_queue_front;
+    ZOOM_Event m_queue_back;
+};
+
+
+struct ZOOM_options_entry {
+    char *name;
+    char *value;
+    struct ZOOM_options_entry *next;
+};
+
+struct ZOOM_options_p {
+    int refcount;
+    void *callback_handle;
+    ZOOM_options_callback callback_func;
+    struct ZOOM_options_entry *entries;
+    ZOOM_options parent1;
+    ZOOM_options parent2;
+};
+
+typedef struct ZOOM_record_cache_p *ZOOM_record_cache;
+
+struct ZOOM_resultset_p {
+    Z_Query *r_query;
+    Z_SortKeySpecList *r_sort_spec;
+    ZOOM_query search;
+    int refcount;
+    int size;
+    int start;
+    int count;
+    int piggyback;
+    char *setname;
+    ODR odr;
+    ZOOM_record_cache record_cache;
+    ZOOM_options options;
+    ZOOM_connection connection;
+    ZOOM_resultset next;
+};
+
+struct ZOOM_record_p {
+    ODR odr;
+    WRBUF wrbuf_marc;
+    Z_NamePlusRecord *npr;
+};
+
+struct ZOOM_record_cache_p {
+    struct ZOOM_record_p rec;
+    char *elementSetName;
+    char *syntax;
+    int pos;
+    ZOOM_record_cache next;
+};
+
+struct ZOOM_scanset_p {
+    int refcount;
+    ODR odr;
+    ZOOM_options options;
+    ZOOM_connection connection;
+    Z_AttributesPlusTerm *termListAndStartPoint;
+    Z_AttributeSetId *attributeSet;
+    Z_ScanResponse *scan_response;
+};
+
+struct ZOOM_package_p {
+    int refcount;
+    ODR odr_out;
+    ZOOM_options options;
+    ZOOM_connection connection;
+    char *buf_out;
+    int len_out;
+};
+
+struct ZOOM_task_p {
+    int running;
+    int which;
+    union {
+#define ZOOM_TASK_SEARCH 1
+        struct {
+            ZOOM_resultset resultset;
+        } search;
+#define ZOOM_TASK_RETRIEVE 2
+        struct {
+            int start;
+            ZOOM_resultset resultset;
+            int count;
+        } retrieve;
+#define ZOOM_TASK_CONNECT 3
+#define ZOOM_TASK_SCAN 4
+        struct {
+            ZOOM_scanset scan;
+        } scan;
+#define ZOOM_TASK_PACKAGE 5
+        ZOOM_package package;
+    } u;
+    ZOOM_task next;
+};
+
+struct ZOOM_Event_p {
+    int kind;
+    ZOOM_Event next;
+    ZOOM_Event prev;
+};
+
+void ZOOM_options_addref (ZOOM_options opt);