From: mike <mike>
Date: Fri, 7 Apr 2006 12:58:37 +0000 (+0000)
Subject: New
X-Git-Tag: cpan_1_22~199
X-Git-Url: http://sru.miketaylor.org.uk/?a=commitdiff_plain;h=b1dc433d09a7a423b0faf26361c9e2aec7e804bb;p=ZOOM-Perl-moved-to-github.git

New
---

diff --git a/samples/zoom/async.pl b/samples/zoom/async.pl
new file mode 100644
index 0000000..d3a9583
--- /dev/null
+++ b/samples/zoom/async.pl
@@ -0,0 +1,94 @@
+# $Id: async.pl,v 1.1 2006-04-07 12:58:37 mike Exp $
+#
+# See ../README for a description of this program.
+# perl -I../../blib/lib -I../../blib/arch async.pl <t1> [...] <tN> <query>
+# for example:
+# perl -I../../blib/lib -I../../blib/arch async.pl z3950.loc.gov:7090/Voyager bagel.indexdata.com:210/gils endeavor.flo.org:7090/Voyager mineral
+
+use strict;
+use warnings;
+use 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 $o = new ZOOM::Options();
+$o->option(async => 1);
+
+# Get first 10 records of result set (using piggyback)
+$o->option(count => 10);
+
+# Preferred record syntax
+$o->option(preferredRecordSyntax => "usmarc");
+$o->option(elementSetName => "F");
+
+# Connect to all targets: options are the same for all of them
+for (my $i = 0; $i < $n; $i++) {
+    $z[$i] = create ZOOM::Connection($o);
+    $z[$i]->connect($ARGV[$i]);
+}
+
+# Search all
+for (my $i = 0; $i < $n; $i++) {
+    $r[$i] = $z[$i]->search_pqf($ARGV[-1]);
+}
+
+# Network I/O.  Pass number of connections and array of connections
+my $nremaining = $n;
+AGAIN:
+my $i;
+while (($i = ZOOM::event(\@z)) != 0) {
+    my $ev = $z[$i-1]->last_event();
+    print("connection ", $i-1, ": event $ev (", ZOOM::event_str($ev), ")\n");
+    last if $ev == ZOOM::Event::ZEND;
+}
+
+if ($i != 0) {
+    # Not the end of the whole loop; one server is ready to display
+    $i--;
+    my $tname = $ARGV[$i];
+    my($error, $errmsg, $addinfo, $diagset) = $z[$i]->error_x();
+    if ($error) {
+	print STDERR "$tname error: $errmsg ($error) $addinfo\n";
+	goto MAYBE_AGAIN;
+    }
+
+    # OK, no major errors.  Look at the result count
+    my $size = $r[$i]->size();
+    print "$tname: $size hits\n";
+
+    # Go through all records at target
+    $size = 10 if $size > 10;
+    for (my $pos = 0; $pos < $size; $pos++) {
+	print "$tname: fetching ", $pos+1, " of $size\n";
+	my $tmp = $r[$i]->record($pos);
+	if (!defined $tmp) {
+	    print "$tname: can't get record ", $pos+1, "\n";
+	    next;
+	}
+	my $rec = $tmp->render();
+	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++) {
+    $r[$i]->destroy();
+    $z[$i]->destroy();
+}
+
+$o->destroy();