epoc32/include/stdapis/glib-2.0/glib/gatomic.h
branchSymbian2
changeset 2 2fe1408b6811
parent 0 061f57f2323e
--- a/epoc32/include/stdapis/glib-2.0/glib/gatomic.h	Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/stdapis/glib-2.0/glib/gatomic.h	Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,70 @@
-gatomic.h
+/* GLIB - Library of useful routines for C programming
+ * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * g_atomic_*: atomic operations.
+ * Copyright (C) 2003 Sebastian Wilhelmi
+ * Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+ 
+/*
+ * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GLib Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GLib at ftp://ftp.gtk.org/pub/gtk/.
+ */
+ 
+#ifndef __G_ATOMIC_H__
+#define __G_ATOMIC_H__
+ 
+#include <_ansi.h> 
+#include <glib/gtypes.h>
+
+G_BEGIN_DECLS
+ 
+IMPORT_C gint     g_atomic_int_exchange_and_add         (volatile gint     *atomic, 
+						gint      	   val);
+IMPORT_C void     g_atomic_int_add                      (volatile gint     *atomic, 
+						gint      	   val);
+IMPORT_C gboolean g_atomic_int_compare_and_exchange     (volatile gint     *atomic, 
+						gint      	   oldval,
+						gint      	   newval);
+IMPORT_C gboolean g_atomic_pointer_compare_and_exchange (volatile gpointer *atomic, 
+						gpointer  	   oldval, 
+						gpointer  	   newval);
+
+IMPORT_C gint     g_atomic_int_get                      (volatile  gint     *atomic);
+IMPORT_C void     g_atomic_int_set                      (volatile gint  	  *atomic,
+						gint               newval);
+IMPORT_C gpointer g_atomic_pointer_get                  (volatile gpointer *atomic);
+IMPORT_C void     g_atomic_pointer_set                  (volatile gpointer *atomic,
+						gpointer           newval);
+
+#ifndef G_ATOMIC_OP_MEMORY_BARRIER_NEEDED
+# define g_atomic_int_get(atomic) 		(*(atomic))
+# define g_atomic_int_set(atomic, newval) 	((void) (*(atomic) = (newval)))
+# define g_atomic_pointer_get(atomic) 		(*(atomic))
+# define g_atomic_pointer_set(atomic, newval)	((void) (*(atomic) = (newval)))
+#endif /* G_ATOMIC_OP_MEMORY_BARRIER_NEEDED */
+
+#define g_atomic_int_inc(atomic) (g_atomic_int_add ((atomic), 1))
+#define g_atomic_int_dec_and_test(atomic)				\
+  (g_atomic_int_exchange_and_add ((atomic), -1) == 1)
+
+G_END_DECLS
+ 
+#endif /* __G_ATOMIC_H__ */