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

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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.
This commit is contained in:
Richard W.M. Jones
2011-03-14 19:42:47 +00:00
parent 7e51cc94dd
commit bc468c87d0
4 changed files with 240 additions and 50 deletions
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72
perl/t/400-events.t Normal file
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# 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);