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# Copyright (C) 2010 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
# 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; version 2 of the License.
#
# 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
# USA
package GenTest::IPC::Process;
@ISA = qw(GenTest);
use GenTest;
use if osWindows(), threads;
## A Process is a placeholder for an object run in a separate process.
## The contract assumes that the objects constructor is run in the
## parent process and the fork is done in Process->start and then
## obect->run() is invoked.
use Data::Dumper;
use strict;
my %processes;
use constant PROCESS_OBJECT => 0;
use constant PROCESS_PID => 1;
sub new {
my $class = shift;
return $class->SUPER::new({
'object' => PROCESS_OBJECT},@_);
}
sub start {
my ($self, @args) = @_;
if (osWindows()) {
my $thr = threads->create(sub{$self->[PROCESS_OBJECT]->run(@args)});
$thr->detach();
$self->[PROCESS_PID]=$thr->tid();
$processes{$thr->tid()} = $self->[PROCESS_OBJECT];
say "".(ref $self->[PROCESS_OBJECT])."(".$thr->tid().") started\n";
} else {
my $pid = fork();
if ($pid == 0 ) {
## Forked process
$self->[PROCESS_PID]=$$;
$self->[PROCESS_OBJECT]->run(@args);
say "".(ref $self->[PROCESS_OBJECT])."($$) terminated normally\n";
exit 0;
} else {
say "".(ref $self->[PROCESS_OBJECT])."($pid) started\n";
$self->[PROCESS_PID] = $pid;
$processes{$pid} = $self->[PROCESS_OBJECT];
return $pid;
}
}
}
sub childWait {
my (@list) = @_;
if (@list < 1) {
while (1) {
my $pid = wait();
last if $pid < 0;
print "".(ref $processes{$pid})."($pid) stopped with status $?\n";
}
} else {
my %pids;
map {$pids{$_}=1} @list;
while ((keys %pids) > 0) {
my $pid = wait();
last if $pid < 0;
print "".(ref $processes{$pid})."($pid) stopped with status $?\n";
delete $pids{$pid} if exists $pids{$pid};
}
}
}
sub childWaitStatus {
my ($max, @list) = @_;
my $status = 0;
if (@list < 1) {
while (1) {
my $pid = wait();
last if $pid < 0;
$status = $? if $status < $?;
print "".(ref $processes{$pid})."($pid) stopped with status $?\n";
last if $status >= $max;
}
} else {
my %pids;
map {$pids{$_}=1} @list;
while ((keys %pids) > 0) {
my $pid = wait();
last if $pid < 0;
$status = $? if $status < $?;
print "".(ref $processes{$pid})."($pid) stopped with status $?\n";
delete $pids{$pid} if exists $pids{$pid};
last if $status >= $max;
}
}
}
sub kill {
my ($self) = @_;
if (osWindows()) {
## Not sure yet, but the thread will enevtually die dtogether
## with the main program
} else {
say "Kill ".(ref $processes{$self->[PROCESS_PID]})."(".$self->[PROCESS_PID].")\n";
kill(15, $self->[PROCESS_PID]);
}
}
1;
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