--- /dev/null
+# $Id: async.pl,v 1.1 2006-04-07 12:29:12 mike Exp $
+#
+# See ../README for a description of this program.
+# perl -I../../blib/lib -I../../blib/arch zoomtst3.pl <t1> [...] <tN> <query>
+
+use strict;
+use warnings;
+use Net::Z3950::ZOOM;
+
+if (@ARGV < 2) {
+ print STDERR "Usage: $0 target1 target2 ... targetN query\n";
+ print STDERR " eg. $0 bagel.indexdata.dk/gils localhost:9999 fish\n";
+ exit 1;
+}
+
+my $n = @ARGV-1;
+my(@z, @r); # connections, result sets
+my $o = Net::Z3950::ZOOM::options_create();
+Net::Z3950::ZOOM::options_set($o, async => 1);
+
+# Get first 10 records of result set (using piggyback)
+Net::Z3950::ZOOM::options_set($o, count => 10);
+
+# Preferred record syntax
+Net::Z3950::ZOOM::options_set($o, preferredRecordSyntax => "usmarc");
+Net::Z3950::ZOOM::options_set($o, elementSetName => "B");
+
+# Connect to all targets: options are the same for all of them
+for (my $i = 0; $i < $n; $i++) {
+ $z[$i] = Net::Z3950::ZOOM::connection_create($o);
+ Net::Z3950::ZOOM::connection_connect($z[$i], $ARGV[$i], 0);
+}
+
+# Search all
+for (my $i = 0; $i < $n; $i++) {
+ $r[$i] = Net::Z3950::ZOOM::connection_search_pqf($z[$i], $ARGV[-1]);
+}
+
+# Network I/O. Pass number of connections and array of connections
+my $nremaining = $n;
+AGAIN:
+my $i;
+while (($i = Net::Z3950::ZOOM::event(\@z)) != 0) {
+ my $ev = Net::Z3950::ZOOM::connection_last_event($z[$i-1]);
+ print("connection ", $i-1, ": event $ev (",
+ Net::Z3950::ZOOM::event_str($ev), ")\n");
+ last if $ev == Net::Z3950::ZOOM::EVENT_END;
+}
+
+if ($i != 0) {
+ # Not the end of the whole loop; one server is ready to display
+ $i--;
+ my($error, $errmsg, $addinfo) = (undef, "dummy", "dummy");
+ my $tname = $ARGV[$i];
+
+ # Display errors if any
+ $error = Net::Z3950::ZOOM::connection_error($z[$i], $errmsg, $addinfo);
+ if ($error) {
+ print STDERR "$tname error: $errmsg ($error) $addinfo\n";
+ goto MAYBE_AGAIN;
+ }
+
+ # OK, no major errors. Look at the result count
+ my $size = Net::Z3950::ZOOM::resultset_size($r[$i]);
+ print "$tname: $size hits\n";
+
+ # Go through all records at target
+ $size = 10 if $size > 10;
+ for (my $pos = 0; $pos < $size; $pos++) {
+ my $len = 0; # length of buffer rec
+ print "$tname: fetching ", $pos+1, " of $size\n";
+ my $tmp = Net::Z3950::ZOOM::resultset_record($r[$i], $pos);
+ if (!defined $tmp) {
+ print "$tname: can't get record ", $pos+1, "\n";
+ next;
+ }
+ my $rec = Net::Z3950::ZOOM::record_get($tmp, "render", $len);
+ if (!defined $rec) {
+ print "$tname: can't render record ", $pos+1, "\n";
+ next;
+ }
+ print $pos+1, "\n", $rec, "\n";
+ }
+}
+
+MAYBE_AGAIN:
+if (--$nremaining > 0) {
+ goto AGAIN;
+}
+
+# Housekeeping
+for (my $i = 0; $i < $n; $i++) {
+ Net::Z3950::ZOOM::resultset_destroy($r[$i]);
+ Net::Z3950::ZOOM::connection_destroy($z[$i]);
+}
+
+Net::Z3950::ZOOM::options_destroy($o);