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From Stas Bekman <s...@stason.org>
Subject [patch] catch server dies early (was Re: perl-framework: mod_dav but not mod_dav?)
Date Sun, 23 Dec 2001 19:10:22 GMT
On Tue, 4 Dec 2001, Doug MacEachern wrote:

> On Wed, 5 Dec 2001, Stas Bekman wrote:
>
> > ok, but that catches only syntax errors. if we can catch the return
> > status from system() we can catch all errors, causing the failure.
>
> that would be great.

ok, here it is. Have no clue whether you can re-use this for win32.

hmm, probably I should use POSIX::SIGINT() instead of 15 in kill.

Index: Apache-Test/lib/Apache/TestServer.pm
===================================================================
RCS file: /home/cvs/httpd-test/perl-framework/Apache-Test/lib/Apache/TestServer.pm,v
retrieving revision 1.46
diff -u -r1.46 TestServer.pm
--- Apache-Test/lib/Apache/TestServer.pm	2001/12/20 17:30:54	1.46
+++ Apache-Test/lib/Apache/TestServer.pm	2001/12/23 19:05:48
@@ -402,6 +402,8 @@
     }

     print "$cmd\n";
+    my $child_pid;
+    my $child_in_pipe;

     if (Apache::TestConfig::WIN32) {
         #make sure only 1 process is started for win32
@@ -418,7 +420,17 @@
         $config->{win32obj} = $obj;
     }
     else {
-        system "$cmd &";
+        require POSIX;
+        $SIG{CHLD} = sub {
+            while ((my $child = waitpid(-1, POSIX::WNOHANG())) > 0) {
+                my $status  = $? >> 8;
+                if ($status) {
+                    $self->failed_msg("\nserver has died with status $status");
+                    kill 15, $$;
+                }
+            }
+        };
+        $child_pid = open $child_in_pipe, "|$cmd";
     }

     while ($old_pid and $old_pid == $self->pid) {
@@ -450,6 +462,10 @@
             last;
         }
     }
+
+    # now that the server has started don't abort the test run if it
+    # dies
+    $SIG{CHLD} = 'IGNORE';

     if (my $pid = $self->pid) {
         print "server $self->{name} started\n";


_____________________________________________________________________
Stas Bekman             JAm_pH      --   Just Another mod_perl Hacker
http://stason.org/      mod_perl Guide   http://perl.apache.org/guide
mailto:stas@stason.org  http://ticketmaster.com http://apacheweek.com
http://singlesheaven.com http://perl.apache.org http://perlmonth.com/


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