[system-tools-backends-clone] bfo#18625 - Remove stale PID file when terminating

[Milan Bouchet-Valat <milanbv src gnome org>]

commit 52b2419d4ad8641c3dd63272f6c1ca97f570bf45
Author: Chris Coulson <chrisccoulson googlemail com>
Date:   Wed Aug 19 11:03:06 2009 +0200

    bfo#18625 - Remove stale PID file when terminating
    
    Patch used downstream by Ubuntu.

 dispatcher/main.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/dispatcher/main.c b/dispatcher/main.c
index 0448b5e..e4318bc 100644
--- a/dispatcher/main.c
+++ b/dispatcher/main.c
@@ -61,6 +61,12 @@ daemonize (void)
   close (dev_null_fd);
 }
 
+static void
+remove_pidfile (void)
+{
+  unlink (LOCALSTATEDIR "/run/system-tools-backends.pid");
+}
+
 void
 signal_received (gint signal)
 {
@@ -69,6 +75,7 @@ signal_received (gint signal)
     case SIGTERM:
     case SIGABRT:
       g_object_unref (dispatcher);
+      remove_pidfile ();
       exit (0);
       break;
     default: