--- /dev/null
+/*
+ * $Id: test-zoom-c.c,v 1.1 2006-07-19 16:29:51 mike Exp $
+ *
+ * Run the same way as "test-pod.pl". This is supposed to be an
+ * exactly equivalent program but written using the ZOOM-C imperative
+ * API for asynchronous events directly rather than through the
+ * intermediary of Net::Z3950::ZOOM, ZOOM::Pod and ZOOM-Perl.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <yaz/zoom.h>
+#include <yaz/log.h>
+
+
+struct conn_and_state {
+ ZOOM_connection conn;
+ ZOOM_resultset rs;
+ int next_to_show, next_to_fetch;
+};
+
+
+static void completed_search(struct conn_and_state *csp);
+static void got_record(struct conn_and_state *csp);
+static void request_records(struct conn_and_state *csp, int count);
+static const char *render_record(ZOOM_record rec);
+
+
+int main (int argc, char *argv[]) {
+ struct conn_and_state cs[100];
+ ZOOM_connection zconn[100];
+ int i, n;
+
+ if (argc == 1) {
+ fprintf(stderr, "Usage: %s <target1> [<target2> ...]\n", argv[0]);
+ return 1;
+ }
+
+ yaz_log_mask_str("appl");
+ n = argc-1;
+ for (i = 0; i < n; i++) {
+ char *target = argv[i+1];
+ ZOOM_options options = ZOOM_options_create();
+ ZOOM_options_set_int(options, "async", 1);
+ ZOOM_options_set(options, "elementSetName", "b");
+ cs[i].conn = zconn[i] = ZOOM_connection_create(options);
+ ZOOM_connection_connect(cs[i].conn, target, 0);
+ cs[i].rs = ZOOM_connection_search_pqf(cs[i].conn, "the");
+ cs[i].next_to_show = 0;
+ cs[i].next_to_fetch = 0;
+ }
+
+ while ((i = ZOOM_event(n, zconn)) != 0) {
+ struct conn_and_state *csp = &cs[i-1];
+ int ev = ZOOM_connection_last_event(csp->conn);
+ int errcode;
+ const char *errmsg;
+ const char *addinfo;
+
+ yaz_log(yaz_log_module_level("pod"),
+ "connection %d: event %d", i-1, ev);
+
+ errcode = ZOOM_connection_error(csp->conn, &errmsg, &addinfo);
+ if (errcode != 0) {
+ fprintf(stderr, "error %d (%s) [%s]\n", errcode, errmsg, addinfo);
+ return 2;
+ }
+
+ if (ev == ZOOM_EVENT_RECV_SEARCH) {
+ completed_search(csp);
+ } else if (ev == ZOOM_EVENT_RECV_RECORD) {
+ got_record(csp);
+ }
+ }
+
+ return 0;
+}
+
+
+static void completed_search(struct conn_and_state *csp) {
+ const char *host = ZOOM_connection_option_get(csp->conn, "host");
+
+ printf("%s: found %d records\n", host, ZOOM_resultset_size(csp->rs));
+ request_records(csp, 2);
+}
+
+
+static void got_record(struct conn_and_state *csp) {
+ const char *host = ZOOM_connection_option_get(csp->conn, "host");
+ int i;
+ ZOOM_record rec;
+
+ assert(csp->next_to_show < csp->next_to_fetch);
+ i = csp->next_to_show++;
+ rec = ZOOM_resultset_record(csp->rs, i);
+ printf("%s: record %d is %s\n", host, i, render_record(rec));
+ if (i == csp->next_to_fetch-1) {
+ request_records(csp, 3);
+ }
+}
+
+
+static void request_records(struct conn_and_state *csp, int count) {
+ const char *host = ZOOM_connection_option_get(csp->conn, "host");
+ int i = csp->next_to_fetch;
+
+ yaz_log(yaz_log_module_level("appl"),
+ "requesting %d records from %d for %s", count, i, host);
+
+ ZOOM_resultset_records(csp->rs, (ZOOM_record*) 0, i, count);
+ csp->next_to_fetch += count;
+}
+
+
+static const char *render_record(ZOOM_record rec) {
+ int len;
+
+ if (rec == 0)
+ return "undefined";
+ else
+ return ZOOM_record_get(rec, "render", &len);
+}