The shortest and simplest possible asynchronous application.

Omits all error checking, so never use this in real life!

diff --git a/samples/zoom/trivial-async.pl b/samples/zoom/trivial-async.pl
new file mode 100644 (file)
index 0000000..6dcb41e
--- /dev/null
+++ b/samples/zoom/trivial-async.pl
@@ -0,0 +1,22 @@
+use ZOOM;
+@targets = ('z3950.loc.gov:7090/Voyager',
+           'bagel.indexdata.com:210/gils');
+$o = new ZOOM::Options();
+$o->option(async => 1);                # asynchronous mode
+$o->option(count => 1);                # piggyback retrieval count
+$o->option(preferredRecordSyntax => "usmarc");
+for ($i = 0; $i < @targets; $i++) {
+    $z[$i] = create ZOOM::Connection($o);
+    $z[$i]->connect($targets[$i]);
+    $r[$i] = $z[$i]->search_pqf("mineral");
+}
+while (($i = ZOOM::event(\@z)) != 0) {
+    $ev = $z[$i-1]->last_event();
+    print("connection ", $i-1, ": ", ZOOM::event_str($ev), "\n");
+    if ($ev == ZOOM::Event::ZEND) {
+       $size = $r[$i-1]->size();
+       print "connection ", $i-1, ": $size hits\n";
+       print $r[$i-1]->record(0)->render()
+           if $size > 0;
+    }
+}