- ok(-f "$tmpdir/pid", 'pid file written');
- open my $fh, '<', "$tmpdir/pid" or die "open failed: $!";
- local $/ = "\n";
- my $rpid = <$fh>;
- chomp $rpid;
- like($rpid, qr/\A\d+\z/s, 'pid file looks like a pid');
- is(kill('TERM', $rpid), 1, 'signalled daemonized process');
- for (1..100) {
- kill(0, $rpid) or last;
- select undef, undef, undef, 0.02;
- }
- is(kill(0, $rpid), 0, 'daemonized process exited')
+ # stop worker to ensure check_sock below hits $new_pid
+ kill('TTOU', $pid) or die "TTOU failed: $!";
+
+ kill('USR2', $pid) or die "USR2 failed: $!";
+ delay_until(sub {
+ $pid != (eval { $read_pid->($pid_file) } // $pid)
+ });
+ my $new_pid = $read_pid->($pid_file);
+ isnt($new_pid, $pid, 'new child started');
+ ok($new_pid > 0, '$new_pid valid');
+ delay_until(sub { -s "$pid_file.oldbin" });
+ my $old_pid = $read_pid->("$pid_file.oldbin");
+ is($old_pid, $pid, '.oldbin pid file written');
+ ok($old_pid > 0, '$old_pid valid');
+
+ check_sock($unix); # ensures $new_pid is ready to receive signals
+
+ # first, back out of the upgrade
+ kill('QUIT', $new_pid) or die "kill new PID failed: $!";
+ delay_until(sub {
+ $pid == (eval { $read_pid->($pid_file) } // 0)
+ });
+ is($read_pid->($pid_file), $pid, 'old PID file restored');
+ ok(!-f "$pid_file.oldbin", '.oldbin PID file gone');
+
+ # retry USR2 upgrade
+ kill('USR2', $pid) or die "USR2 failed: $!";
+ delay_until(sub {
+ $pid != (eval { $read_pid->($pid_file) } // $pid)
+ });
+ $new_pid = $read_pid->($pid_file);
+ isnt($new_pid, $pid, 'new child started again');
+ $old_pid = $read_pid->("$pid_file.oldbin");
+ is($old_pid, $pid, '.oldbin pid file written');
+
+ # drop the old parent
+ kill('QUIT', $old_pid) or die "QUIT failed: $!";
+ delay_until(sub { !kill(0, $old_pid) });
+ ok(!-f "$pid_file.oldbin", '.oldbin PID file gone');
+
+ # drop the new child
+ check_sock($unix);
+ kill('QUIT', $new_pid) or die "QUIT failed: $!";
+ delay_until(sub { !kill(0, $new_pid) });
+ ok(!-f $pid_file, 'PID file is gone');
+
+
+ # try USR2 without workers (-W0)
+ $td = start_script([$httpd, @args, '-W0', $psgi], undef, $opt);
+ $td->join;
+ is($?, 0, 'daemonized w/o workers');
+ check_sock($unix);
+ $pid = $read_pid->($pid_file);
+
+ # replace running process
+ kill('USR2', $pid) or die "USR2 failed: $!";
+ delay_until(sub { !kill(0, $pid) });
+
+ check_sock($unix);
+ $pid = $read_pid->($pid_file);
+ kill('QUIT', $pid) or die "USR2 failed: $!";
+ delay_until(sub { !kill(0, $pid) });
+ ok(!-f $pid_file, 'PID file is gone');