| /* GLIB - Library of useful routines for C programming |
| * gatomic-gcc.c: atomic operations using GCC builtins. |
| * Copyright (C) 2009 Hiroyuki Ikezoe |
| * |
| * 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. |
| */ |
| |
| #include "config.h" |
| |
| #include "glib.h" |
| #include "galias.h" |
| |
| gint |
| g_atomic_int_exchange_and_add (volatile gint G_GNUC_MAY_ALIAS *atomic, |
| gint val) |
| { |
| return __sync_fetch_and_add (atomic, val); |
| } |
| |
| void |
| g_atomic_int_add (volatile gint G_GNUC_MAY_ALIAS *atomic, |
| gint val) |
| { |
| __sync_fetch_and_add (atomic, val); |
| } |
| |
| gboolean |
| g_atomic_int_compare_and_exchange (volatile gint G_GNUC_MAY_ALIAS *atomic, |
| gint oldval, |
| gint newval) |
| { |
| return __sync_bool_compare_and_swap (atomic, oldval, newval); |
| } |
| |
| gboolean |
| g_atomic_pointer_compare_and_exchange (volatile gpointer G_GNUC_MAY_ALIAS *atomic, |
| gpointer oldval, |
| gpointer newval) |
| { |
| return __sync_bool_compare_and_swap (atomic, oldval, newval); |
| } |
| |
| void |
| _g_atomic_thread_init (void) |
| { |
| } |
| |
| gint |
| (g_atomic_int_get) (volatile gint G_GNUC_MAY_ALIAS *atomic) |
| { |
| __sync_synchronize (); |
| return *atomic; |
| } |
| |
| void |
| (g_atomic_int_set) (volatile gint G_GNUC_MAY_ALIAS *atomic, |
| gint newval) |
| { |
| *atomic = newval; |
| __sync_synchronize (); |
| } |
| |
| gpointer |
| (g_atomic_pointer_get) (volatile gpointer G_GNUC_MAY_ALIAS *atomic) |
| { |
| __sync_synchronize (); |
| return *atomic; |
| } |
| |
| void |
| (g_atomic_pointer_set) (volatile gpointer G_GNUC_MAY_ALIAS *atomic, |
| gpointer newval) |
| { |
| *atomic = newval; |
| __sync_synchronize (); |
| } |
| |
| #define __G_ATOMIC_C__ |
| #include "galiasdef.c" |