New event API - Perl bindings (RHBZ#664558).

The methods $h->set_progress_callback and $h->clear_progress_callback
have been removed, and replaced with a complete mechanism for setting
and deleting general-purpose events.

This also updates virt-resize to use the new API.

1 files changed, 72 insertions, 0 deletions

diff --git a/perl/t/400-events.t b/perl/t/400-events.t
new file mode 100644
index 00000000..bea4a520
--- /dev/null
+++ b/perl/t/400-events.t
@@ -0,0 +1,72 @@
+# libguestfs Perl bindings -*- perl -*-
+# Copyright (C) 2011 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+use strict;
+use warnings;
+use Test::More tests => 7;
+
+use Sys::Guestfs;
+
+my $h = Sys::Guestfs->new ();
+ok ($h);
+
+sub log_callback {
+    my $ev = shift;
+    my $eh = shift;
+    my $buf = shift;
+    my $array = shift;
+
+    chomp $buf if $ev == $Sys::Guestfs::EVENT_APPLIANCE;
+
+    # We don't get to see this output because it is eaten up by the
+    # test harness, but generate it anyway.
+    printf("perl event logged: event=0x%x eh=%d buf='%s' array=[%s]\n",
+           $ev, $eh, $buf, join (", ", @$array));
+}
+
+my $close_invoked = 0;
+
+sub close_callback {
+    $close_invoked++;
+    log_callback (@_);
+}
+
+# Register an event callback for all log messages.
+my $events = $Sys::Guestfs::EVENT_APPLIANCE | $Sys::Guestfs::EVENT_LIBRARY |
+    $Sys::Guestfs::EVENT_TRACE;
+my $eh;
+$eh = $h->set_event_callback (\&log_callback, $events);
+ok ($eh >= 0);
+
+# Check that the close event is invoked.
+$h->set_event_callback (\&close_callback, $Sys::Guestfs::EVENT_CLOSE);
+ok ($eh >= 0);
+
+# Now make sure we see some messages.
+$h->set_trace (1);
+$h->set_verbose (1);
+ok (1);
+
+# Do some stuff.
+$h->add_drive_ro ("/dev/null");
+$h->set_autosync (1);
+ok (1);
+
+# Close the handle.  The close callback should be invoked.
+ok ($close_invoked == 0);
+undef $h;
+ok ($close_invoked == 1);