gst-libs/gst/vaapi/glibcompat.h

   1 /*
   2  *  glibcompat.h - System-dependent definitions
   3  *
   4  *  Copyright (C) 2012 Intel Corporation
   5  *
   6  *  This library is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU Lesser General Public License
   8  *  as published by the Free Software Foundation; either version 2.1
   9  *  of the License, or (at your option) any later version.
  10  *
  11  *  This library is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  *  Lesser General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU Lesser General Public
  17  *  License along with this library; if not, write to the Free
  18  *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  *  Boston, MA 02110-1301 USA
  20  */
  21
  22 #ifndef GLIB_COMPAT_H
  23 #define GLIB_COMPAT_H
  24
  25 #include <glib.h>
  26 #include <glib-object.h>
  27
  28 #if !GLIB_CHECK_VERSION(2,27,2)
  29 static inline void
  30 g_list_free_full(GList *list, GDestroyNotify free_func)
  31 {
  32     g_list_foreach(list, (GFunc)free_func, NULL);
  33     g_list_free(list);
  34 }
  35 #endif
  36
  37 #if !GLIB_CHECK_VERSION(2,28,0)
  38 static inline void
  39 g_clear_object_inline(volatile GObject **object_ptr)
  40 {
  41     gpointer * const ptr = (gpointer)object_ptr;
  42     gpointer old;
  43
  44     do {
  45         old = g_atomic_pointer_get(ptr);
  46     } while G_UNLIKELY(!g_atomic_pointer_compare_and_exchange(ptr, old, NULL));
  47
  48     if (old)
  49         g_object_unref(old);
  50 }
  51 #undef  g_clear_object
  52 #define g_clear_object(obj) g_clear_object_inline((volatile GObject **)(obj))
  53 #endif
  54
  55 #if GLIB_CHECK_VERSION(2,31,2)
  56 #define GStaticMutex                    GMutex
  57 #undef  g_static_mutex_init
  58 #define g_static_mutex_init(mutex)      g_mutex_init(mutex)
  59 #undef  g_static_mutex_free
  60 #define g_static_mutex_free(mutex)      g_mutex_clear(mutex)
  61 #undef  g_static_mutex_lock
  62 #define g_static_mutex_lock(mutex)      g_mutex_lock(mutex)
  63 #undef  g_static_mutex_unlock
  64 #define g_static_mutex_unlock(mutex)    g_mutex_unlock(mutex)
  65
  66 #define GStaticRecMutex                 GRecMutex
  67 #undef  g_static_rec_mutex_init
  68 #define g_static_rec_mutex_init(mutex)  g_rec_mutex_init(mutex)
  69 #undef  g_static_rec_mutex_free
  70 #define g_static_rec_mutex_free(mutex)  g_rec_mutex_clear(mutex)
  71 #undef  g_static_rec_mutex_lock
  72 #define g_static_rec_mutex_lock(mutex)  g_rec_mutex_lock(mutex)
  73 #undef  g_static_rec_mutex_unlock
  74 #define g_static_rec_mutex_unlock(m)    g_rec_mutex_unlock(m)
  75 #endif
  76
  77 #endif /* GLIB_COMPAT_H */