Factor out g_main_context_init_pipe from g_main_context_new to initialize

2002-08-06  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>

	* glib/gmain.c: Factor out g_main_context_init_pipe from
	g_main_context_new to initialize the wakeup pipe of a
	context. Call that function from g_main_context_new if threads are
	initialized and for all contexts when threads are initialized
	in g_main_thread_init. (#86872)

	* gthread/gthread-impl.c: Call g_main_thread_init. (#86872)

ChangeLog

@@ -9,6 +9,14 @@
 	thread, because all unbound threads will schedule according to
 	that value and it defaults to 0 (the minimal value). 
 
+	* glib/gmain.c: Factor out g_main_context_init_pipe from
+	g_main_context_new to initialize the wakeup pipe of a
+	context. Call that function from g_main_context_new if threads are
+	initialized and for all contexts when threads are initialized
+	in g_main_thread_init. (#86872) 
+
+	* gthread/gthread-impl.c: Call g_main_thread_init. (#86872) 
+
 Thu Jul 25 14:23:15 2002  Owen Taylor  <otaylor@redhat.com>
 
  	* glib/gfileutils.c: Clarify the behavior of g_build_path()

ChangeLog.pre-2-10

@@ -9,6 +9,14 @@
 	thread, because all unbound threads will schedule according to
 	that value and it defaults to 0 (the minimal value). 
 
+	* glib/gmain.c: Factor out g_main_context_init_pipe from
+	g_main_context_new to initialize the wakeup pipe of a
+	context. Call that function from g_main_context_new if threads are
+	initialized and for all contexts when threads are initialized
+	in g_main_thread_init. (#86872) 
+
+	* gthread/gthread-impl.c: Call g_main_thread_init. (#86872) 
+
 Thu Jul 25 14:23:15 2002  Owen Taylor  <otaylor@redhat.com>
 
  	* glib/gfileutils.c: Clarify the behavior of g_build_path()

ChangeLog.pre-2-12

@@ -9,6 +9,14 @@
 	thread, because all unbound threads will schedule according to
 	that value and it defaults to 0 (the minimal value). 
 
+	* glib/gmain.c: Factor out g_main_context_init_pipe from
+	g_main_context_new to initialize the wakeup pipe of a
+	context. Call that function from g_main_context_new if threads are
+	initialized and for all contexts when threads are initialized
+	in g_main_thread_init. (#86872) 
+
+	* gthread/gthread-impl.c: Call g_main_thread_init. (#86872) 
+
 Thu Jul 25 14:23:15 2002  Owen Taylor  <otaylor@redhat.com>
 
  	* glib/gfileutils.c: Clarify the behavior of g_build_path()

ChangeLog.pre-2-2

@@ -9,6 +9,14 @@
 	thread, because all unbound threads will schedule according to
 	that value and it defaults to 0 (the minimal value). 
 
+	* glib/gmain.c: Factor out g_main_context_init_pipe from
+	g_main_context_new to initialize the wakeup pipe of a
+	context. Call that function from g_main_context_new if threads are
+	initialized and for all contexts when threads are initialized
+	in g_main_thread_init. (#86872) 
+
+	* gthread/gthread-impl.c: Call g_main_thread_init. (#86872) 
+
 Thu Jul 25 14:23:15 2002  Owen Taylor  <otaylor@redhat.com>
 
  	* glib/gfileutils.c: Clarify the behavior of g_build_path()

ChangeLog.pre-2-4

@@ -9,6 +9,14 @@
 	thread, because all unbound threads will schedule according to
 	that value and it defaults to 0 (the minimal value). 
 
+	* glib/gmain.c: Factor out g_main_context_init_pipe from
+	g_main_context_new to initialize the wakeup pipe of a
+	context. Call that function from g_main_context_new if threads are
+	initialized and for all contexts when threads are initialized
+	in g_main_thread_init. (#86872) 
+
+	* gthread/gthread-impl.c: Call g_main_thread_init. (#86872) 
+
 Thu Jul 25 14:23:15 2002  Owen Taylor  <otaylor@redhat.com>
 
  	* glib/gfileutils.c: Clarify the behavior of g_build_path()

ChangeLog.pre-2-6

@@ -9,6 +9,14 @@
 	thread, because all unbound threads will schedule according to
 	that value and it defaults to 0 (the minimal value). 
 
+	* glib/gmain.c: Factor out g_main_context_init_pipe from
+	g_main_context_new to initialize the wakeup pipe of a
+	context. Call that function from g_main_context_new if threads are
+	initialized and for all contexts when threads are initialized
+	in g_main_thread_init. (#86872) 
+
+	* gthread/gthread-impl.c: Call g_main_thread_init. (#86872) 
+
 Thu Jul 25 14:23:15 2002  Owen Taylor  <otaylor@redhat.com>
 
  	* glib/gfileutils.c: Clarify the behavior of g_build_path()

ChangeLog.pre-2-8

@@ -9,6 +9,14 @@
 	thread, because all unbound threads will schedule according to
 	that value and it defaults to 0 (the minimal value). 
 
+	* glib/gmain.c: Factor out g_main_context_init_pipe from
+	g_main_context_new to initialize the wakeup pipe of a
+	context. Call that function from g_main_context_new if threads are
+	initialized and for all contexts when threads are initialized
+	in g_main_thread_init. (#86872) 
+
+	* gthread/gthread-impl.c: Call g_main_thread_init. (#86872) 
+
 Thu Jul 25 14:23:15 2002  Owen Taylor  <otaylor@redhat.com>
 
  	* glib/gfileutils.c: Clarify the behavior of g_build_path()

glib/gmain.c

@@ -219,6 +219,7 @@ static gboolean g_idle_dispatch    (GSource     *source,
 
 G_LOCK_DEFINE_STATIC (main_loop);
 static GMainContext *default_main_context;
+static GSList *main_contexts_without_pipe = NULL;
 
 #if defined(G_PLATFORM_WIN32) && defined(__GNUC__)
 __declspec(dllexport)
@@ -567,7 +568,10 @@ g_main_context_unref_and_unlock (GMainContext *context)
 #else
       CloseHandle (context->wake_up_semaphore);
 #endif
-    }
+    } 
+  else
+    main_contexts_without_pipe = g_slist_remove (main_contexts_without_pipe, 
+						 context);
 #endif
   
   g_free (context);
@@ -590,6 +594,45 @@ g_main_context_unref (GMainContext *context)
   g_main_context_unref_and_unlock (context);
 }
 
+#ifdef G_THREADS_ENABLED
+static void 
+g_main_context_init_pipe (GMainContext *context)
+{
+# ifndef G_OS_WIN32
+  if (pipe (context->wake_up_pipe) < 0)
+    g_error ("Cannot create pipe main loop wake-up: %s\n",
+	     g_strerror (errno));
+  
+  context->wake_up_rec.fd = context->wake_up_pipe[0];
+  context->wake_up_rec.events = G_IO_IN;
+# else
+  context->wake_up_semaphore = CreateSemaphore (NULL, 0, 100, NULL);
+  if (context->wake_up_semaphore == NULL)
+    g_error ("Cannot create wake-up semaphore: %s",
+	     g_win32_error_message (GetLastError ()));
+  context->wake_up_rec.fd = (gint) context->wake_up_semaphore;
+  context->wake_up_rec.events = G_IO_IN;
+#  ifdef G_MAIN_POLL_DEBUG
+  g_print ("wake-up semaphore: %#x\n", (guint) context->wake_up_semaphore);
+#  endif
+# endif
+  g_main_context_add_poll_unlocked (context, 0, &context->wake_up_rec);
+}
+
+void
+g_main_thread_init ()
+{
+  GSList *curr = main_contexts_without_pipe;
+  while (curr)
+    {
+      g_main_context_init_pipe ((GMainContext *)curr->data);
+      curr = curr->next;
+    }
+  g_slist_free (main_contexts_without_pipe);
+  main_contexts_without_pipe = NULL;  
+}
+#endif /* G_THREADS_ENABLED */
+
 /**
  * g_main_context_new:
  * 
@@ -611,47 +654,29 @@ g_main_context_new ()
       
   context->ref_count = 1;
 
-      context->next_id = 1;
-      
-      context->source_list = NULL;
-
+  context->next_id = 1;
+  
+  context->source_list = NULL;
+  
 #if HAVE_POLL
-      context->poll_func = (GPollFunc)poll;
+  context->poll_func = (GPollFunc)poll;
 #else
-      context->poll_func = g_poll;
+  context->poll_func = g_poll;
 #endif
-
-      context->cached_poll_array = NULL;
-      context->cached_poll_array_size = 0;
-      
-      context->pending_dispatches = g_ptr_array_new ();
-      
-      context->time_is_current = FALSE;
-
+  
+  context->cached_poll_array = NULL;
+  context->cached_poll_array_size = 0;
+  
+  context->pending_dispatches = g_ptr_array_new ();
+  
+  context->time_is_current = FALSE;
+  
 #ifdef G_THREADS_ENABLED
-      if (g_thread_supported ())
-	{
-#ifndef G_OS_WIN32
-	  if (pipe (context->wake_up_pipe) < 0)
-	    g_error ("Cannot create pipe main loop wake-up: %s\n",
-		     g_strerror (errno));
-	  
-	  context->wake_up_rec.fd = context->wake_up_pipe[0];
-	  context->wake_up_rec.events = G_IO_IN;
-	  g_main_context_add_poll_unlocked (context, 0, &context->wake_up_rec);
-#else
-	  context->wake_up_semaphore = CreateSemaphore (NULL, 0, 100, NULL);
-	  if (context->wake_up_semaphore == NULL)
-	    g_error ("Cannot create wake-up semaphore: %s",
-		     g_win32_error_message (GetLastError ()));
-	  context->wake_up_rec.fd = (gint) context->wake_up_semaphore;
-	  context->wake_up_rec.events = G_IO_IN;
-#ifdef G_MAIN_POLL_DEBUG
-	  g_print ("wake-up semaphore: %#x\n", (guint) context->wake_up_semaphore);
-#endif
-	  g_main_context_add_poll_unlocked (context, 0, &context->wake_up_rec);
-#endif
-	}
+  if (g_thread_supported ())
+    g_main_context_init_pipe (context);
+  else
+    main_contexts_without_pipe = g_slist_prepend (main_contexts_without_pipe, 
+						  context);
 #endif
 
   return context;

gthread/gthread-impl.c

@@ -66,6 +66,7 @@ void g_mutex_init (void);
 void g_mem_init (void);
 void g_messages_init (void);
 void g_convert_init (void);
+void g_main_thread_init (void);
 
 #define G_MUTEX_DEBUG_INFO(mutex) (*((gpointer*)(((char*)mutex)+G_MUTEX_SIZE)))
 
@@ -381,6 +382,7 @@ g_thread_init (GThreadFunctions* init)
   g_mem_init ();
   g_messages_init ();
   g_convert_init ();
+  g_main_thread_init ();
 
   /* now we can set g_threads_got_initialized and thus enable
    * all the thread functions