LP1204123 Set SIGCHLD handler to DEFAULT for children (perl)

Remove the special SIGCHLD handler applied to the parent/listener
process from spawned child processes (drones) by setting child handler to
DEFAULT.  Otherwise, if an OpenSRF drone process spawns a sub-process,
the drone will execute the SIGCHLD handler meant for the Listener when
the sub-process dies, wherein hijinks ensue.

Signed-off-by: Bill Erickson <berick@esilibrary.com>

diff --git a/src/perl/lib/OpenSRF/Server.pm b/src/perl/lib/OpenSRF/Server.pm
index d8103b6..1257a9c 100644 (file)
--- a/src/perl/lib/OpenSRF/Server.pm
+++ b/src/perl/lib/OpenSRF/Server.pm
@@ -449,7 +449,7 @@ sub spawn_child {
 
     } else { # child process
 
-        $SIG{$_} = 'DEFAULT' for (qw/INT TERM QUIT HUP/);
+        $SIG{$_} = 'DEFAULT' for (qw/INT TERM QUIT HUP CHLD/);
 
         if($self->{stderr_log}) {