Initialize child_watch_count to 1, so that we don't miss the very first

2004-11-08  Matthias Clasen  <mclasen@redhat.com>

	* glib/gmain.c: Initialize child_watch_count to 1, so
	that we don't miss the very first child if it exits
	before we set up the child watch. In that case we had
	previously source->count == child_watch_count == 0,
	causing g_child_watch_check() to skip the waitpid()
	call.  (#154827, Gustavo Carneiro)

	* glib/gmain.c (g_child_watch_source_init_single)
	(g_child_watch_source_init_multi_threaded): Use sigaction()
	instead of signal().  (#136867, Jonas Jonsson, patch by
	Archana Shah)

ChangeLog

@@ -1,3 +1,17 @@
+2004-11-08  Matthias Clasen  <mclasen@redhat.com>
+	
+	* glib/gmain.c: Initialize child_watch_count to 1, so 
+	that we don't miss the very first child if it exits 
+	before we set up the child watch. In that case we had 
+	previously source->count == child_watch_count == 0, 
+	causing g_child_watch_check() to skip the waitpid() 
+	call.  (#154827, Gustavo Carneiro)
+
+	* glib/gmain.c (g_child_watch_source_init_single) 
+	(g_child_watch_source_init_multi_threaded): Use sigaction()
+	instead of signal().  (#136867, Jonas Jonsson, patch by
+	Archana Shah)
+
 2004-11-07  Matthias Clasen  <mclasen@redhat.com>
 
 	* glib/gutils.c (g_get_any_init): Work around an bug

ChangeLog.pre-2-10

@@ -1,3 +1,17 @@
+2004-11-08  Matthias Clasen  <mclasen@redhat.com>
+	
+	* glib/gmain.c: Initialize child_watch_count to 1, so 
+	that we don't miss the very first child if it exits 
+	before we set up the child watch. In that case we had 
+	previously source->count == child_watch_count == 0, 
+	causing g_child_watch_check() to skip the waitpid() 
+	call.  (#154827, Gustavo Carneiro)
+
+	* glib/gmain.c (g_child_watch_source_init_single) 
+	(g_child_watch_source_init_multi_threaded): Use sigaction()
+	instead of signal().  (#136867, Jonas Jonsson, patch by
+	Archana Shah)
+
 2004-11-07  Matthias Clasen  <mclasen@redhat.com>
 
 	* glib/gutils.c (g_get_any_init): Work around an bug

ChangeLog.pre-2-12

@@ -1,3 +1,17 @@
+2004-11-08  Matthias Clasen  <mclasen@redhat.com>
+	
+	* glib/gmain.c: Initialize child_watch_count to 1, so 
+	that we don't miss the very first child if it exits 
+	before we set up the child watch. In that case we had 
+	previously source->count == child_watch_count == 0, 
+	causing g_child_watch_check() to skip the waitpid() 
+	call.  (#154827, Gustavo Carneiro)
+
+	* glib/gmain.c (g_child_watch_source_init_single) 
+	(g_child_watch_source_init_multi_threaded): Use sigaction()
+	instead of signal().  (#136867, Jonas Jonsson, patch by
+	Archana Shah)
+
 2004-11-07  Matthias Clasen  <mclasen@redhat.com>
 
 	* glib/gutils.c (g_get_any_init): Work around an bug

ChangeLog.pre-2-6

@@ -1,3 +1,17 @@
+2004-11-08  Matthias Clasen  <mclasen@redhat.com>
+	
+	* glib/gmain.c: Initialize child_watch_count to 1, so 
+	that we don't miss the very first child if it exits 
+	before we set up the child watch. In that case we had 
+	previously source->count == child_watch_count == 0, 
+	causing g_child_watch_check() to skip the waitpid() 
+	call.  (#154827, Gustavo Carneiro)
+
+	* glib/gmain.c (g_child_watch_source_init_single) 
+	(g_child_watch_source_init_multi_threaded): Use sigaction()
+	instead of signal().  (#136867, Jonas Jonsson, patch by
+	Archana Shah)
+
 2004-11-07  Matthias Clasen  <mclasen@redhat.com>
 
 	* glib/gutils.c (g_get_any_init): Work around an bug

ChangeLog.pre-2-8

@@ -1,3 +1,17 @@
+2004-11-08  Matthias Clasen  <mclasen@redhat.com>
+	
+	* glib/gmain.c: Initialize child_watch_count to 1, so 
+	that we don't miss the very first child if it exits 
+	before we set up the child watch. In that case we had 
+	previously source->count == child_watch_count == 0, 
+	causing g_child_watch_check() to skip the waitpid() 
+	call.  (#154827, Gustavo Carneiro)
+
+	* glib/gmain.c (g_child_watch_source_init_single) 
+	(g_child_watch_source_init_multi_threaded): Use sigaction()
+	instead of signal().  (#136867, Jonas Jonsson, patch by
+	Archana Shah)
+
 2004-11-07  Matthias Clasen  <mclasen@redhat.com>
 
 	* glib/gutils.c (g_get_any_init): Work around an bug

glib/gmain.c

@@ -266,7 +266,7 @@ enum {
   CHILD_WATCH_INITIALIZED_THREADED
 };
 static gint child_watch_init_state = CHILD_WATCH_UNINITIALIZED;
-static gint child_watch_count = 0;
+static gint child_watch_count = 1;
 static gint child_watch_wake_up_pipe[2] = {0, 0};
 #endif /* !G_OS_WIN32 */
 G_LOCK_DEFINE_STATIC (main_context_list);
@@ -3566,12 +3566,17 @@ g_child_watch_signal_handler (int signum)
 static void
 g_child_watch_source_init_single (void)
 {
+  struct sigaction action;
+
   g_assert (! g_thread_supported());
   g_assert (child_watch_init_state == CHILD_WATCH_UNINITIALIZED);
 
   child_watch_init_state = CHILD_WATCH_INITIALIZED_SINGLE;
 
-  signal (SIGCHLD, g_child_watch_signal_handler);
+  action.sa_handler = g_child_watch_signal_handler;
+  sigemptyset (&action.sa_mask);
+  action.sa_flags = SA_RESTART | SA_NOCLDSTOP;
+  sigaction (SIGCHLD, &action, NULL);
 }
 
 static gpointer
@@ -3619,6 +3624,7 @@ static void
 g_child_watch_source_init_multi_threaded (void)
 {
   GError *error = NULL;
+  struct sigaction action;
 
   g_assert (g_thread_supported());
 
@@ -3631,7 +3637,11 @@ g_child_watch_source_init_multi_threaded (void)
   if (g_thread_create (child_watch_helper_thread, NULL, FALSE, &error) == NULL)
     g_error ("Cannot create a thread to monitor child exit status: %s\n", error->message);
   child_watch_init_state = CHILD_WATCH_INITIALIZED_THREADED;
-  signal (SIGCHLD, g_child_watch_signal_handler);
+ 
+  action.sa_handler = g_child_watch_signal_handler;
+  sigemptyset (&action.sa_mask);
+  action.sa_flags = SA_RESTART | SA_NOCLDSTOP;
+  sigaction (SIGCHLD, &action, NULL);
 }
 
 static void