Attachment 41679 Details for Bug 8934 – reset priority and scheduler, and make a process group

[patch] reset priority and scheduler, and make a process group

08-create-new-process-group.patch (text/plain), 1.45 KB, created by Simon McVittie on 2011-01-05 10:35:41 UTC

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Creator: Simon McVittie

Created: 2011-01-05 10:35:41 UTC

Size: 1.45 KB

patch

obsolete

>Upstgream-Bug: http://bugs.freedesktop.org/show_bug.cgi?id=8934
>Created-by: Kimmo HÃ¤mÃ¤lÃ¤inen <kimmo.hamalainen@nokia.com>
>Updated-by: Guillem Jover <guillem.jover@nokia.com>
>
>Index: dbus-1.2.4/dbus/dbus-spawn.c
>===================================================================
>--- dbus-1.2.4.orig/dbus/dbus-spawn.c
>+++ dbus-1.2.4/dbus/dbus-spawn.c
>@@ -35,6 +35,9 @@
> #ifdef HAVE_ERRNO_H
> #include <errno.h>
> #endif
>+#ifdef _POSIX_PRIORITY_SCHEDULING
>+#include <sched.h>
>+#endif
> 
> /**
>  * @addtogroup DBusInternalsUtils
>@@ -1061,6 +1064,23 @@ babysit (pid_t grandchild_pid,
>   exit (1);
> }
> 
>+static void
>+setup_child_priority (void)
>+{
>+  int p;
>+#ifdef _POSIX_PRIORITY_SCHEDULING
>+  struct sched_param sched_param;
>+
>+  sched_param.sched_priority = 0;
>+  sched_setscheduler (0, SCHED_OTHER, &sched_param);
>+#endif
>+
>+  errno = 0;
>+  p = getpriority (PRIO_PROCESS, 0);
>+  if (!errno && p < 0)
>+    setpriority (PRIO_PROCESS, 0, 0);
>+}
>+
> /**
>  * Spawns a new process. The executable name and argv[0]
>  * are the same, both are provided in argv[0]. The child_setup
>@@ -1198,6 +1218,13 @@ _dbus_spawn_async_with_babysitter (DBusB
> 	}
>       else if (grandchild_pid == 0)
> 	{
>+	  /* put the child into a new session and process group, so that
>+	   * killpg() can be used safely */
>+	  if (setsid () == -1)
>+	    _dbus_warn ("setsid() failed: %s\n", _dbus_strerror (errno));
>+
>+	  setup_child_priority ();
>+
> 	  do_exec (child_err_report_pipe[WRITE_END],
> 		   argv,
> 		   env,

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Attachments on bug 8934: 7687 | 34136 | 41679

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