gstreamer/gst-libs/gst/vaapi/glibcompat.h
Gwenole Beauchesne 48f4f0564e libs: fix compatibility with glib 2.28.
Always prefer non deprecated APIs by default and provide compatibility
glue for older glib versions when necessary.
2012-12-17 14:33:52 +01:00

136 lines
4.9 KiB
C

/*
* glibcompat.h - System-dependent definitions
*
* Copyright (C) 2012 Intel Corporation
*
* 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 2.1
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifndef GLIB_COMPAT_H
#define GLIB_COMPAT_H
#include <glib.h>
#include <glib-object.h>
#define G_COMPAT_DEFINE(new_api, new_args, old_api, old_args) \
static inline void \
new_api new_args \
{ \
old_api old_args; \
}
#if !GLIB_CHECK_VERSION(2,27,2)
static inline void
g_list_free_full(GList *list, GDestroyNotify free_func)
{
g_list_foreach(list, (GFunc)free_func, NULL);
g_list_free(list);
}
#endif
#if !GLIB_CHECK_VERSION(2,28,0)
static inline void
g_clear_object_inline(volatile GObject **object_ptr)
{
gpointer * const ptr = (gpointer)object_ptr;
gpointer old;
do {
old = g_atomic_pointer_get(ptr);
} while G_UNLIKELY(!g_atomic_pointer_compare_and_exchange(ptr, old, NULL));
if (old)
g_object_unref(old);
}
#undef g_clear_object
#define g_clear_object(obj) g_clear_object_inline((volatile GObject **)(obj))
#endif
#if !GLIB_CHECK_VERSION(2,31,2)
typedef GStaticMutex GCompatMutex;
G_COMPAT_DEFINE(g_compat_mutex_init, (GCompatMutex *mutex),
g_static_mutex_init, (mutex))
G_COMPAT_DEFINE(g_compat_mutex_clear, (GCompatMutex *mutex),
g_static_mutex_free, (mutex))
G_COMPAT_DEFINE(g_compat_mutex_lock, (GCompatMutex *mutex),
g_static_mutex_lock, (mutex))
G_COMPAT_DEFINE(g_compat_mutex_unlock, (GCompatMutex *mutex),
g_static_mutex_unlock, (mutex))
typedef GStaticRecMutex GCompatRecMutex;
G_COMPAT_DEFINE(g_compat_rec_mutex_init, (GCompatRecMutex *mutex),
g_static_rec_mutex_init, (mutex))
G_COMPAT_DEFINE(g_compat_rec_mutex_clear, (GCompatRecMutex *mutex),
g_static_rec_mutex_free, (mutex))
G_COMPAT_DEFINE(g_compat_rec_mutex_lock, (GCompatRecMutex *mutex),
g_static_rec_mutex_lock, (mutex))
G_COMPAT_DEFINE(g_compat_rec_mutex_unlock, (GCompatRecMutex *mutex),
g_static_rec_mutex_unlock, (mutex))
typedef GCond *GCompatCond;
G_COMPAT_DEFINE(g_compat_cond_init, (GCompatCond *cond),
*cond = g_cond_new, ())
G_COMPAT_DEFINE(g_compat_cond_clear, (GCompatCond *cond),
if (*cond) g_cond_free, (*cond))
G_COMPAT_DEFINE(g_compat_cond_signal, (GCompatCond *cond),
g_cond_signal, (*cond))
G_COMPAT_DEFINE(g_compat_cond_broadcast, (GCompatCond *cond),
g_cond_broadcast, (*cond))
static inline gboolean
g_cond_wait_until(GCompatCond *cond, GStaticMutex *mutex, gint64 end_time)
{
gint64 diff_time;
GTimeVal timeout;
diff_time = end_time - g_get_monotonic_time();
g_get_current_time(&timeout);
g_time_val_add(&timeout, diff_time > 0 ? diff_time : 0);
return g_cond_timed_wait(*cond, g_static_mutex_get_mutex(mutex), &timeout);
}
#define GMutex GCompatMutex
#undef g_mutex_init
#define g_mutex_init(mutex) g_compat_mutex_init(mutex)
#undef g_mutex_clear
#define g_mutex_clear(mutex) g_compat_mutex_clear(mutex)
#undef g_mutex_lock
#define g_mutex_lock(mutex) g_compat_mutex_lock(mutex)
#undef g_mutex_unlock
#define g_mutex_unlock(mutex) g_compat_mutex_unlock(mutex)
#define GRecMutex GCompatRecMutex
#undef g_rec_mutex_init
#define g_rec_mutex_init(mutex) g_compat_rec_mutex_init(mutex)
#undef g_rec_mutex_clear
#define g_rec_mutex_clear(mutex) g_compat_rec_mutex_clear(mutex)
#undef g_rec_mutex_lock
#define g_rec_mutex_lock(mutex) g_compat_rec_mutex_lock(mutex)
#undef g_rec_mutex_unlock
#define g_rec_mutex_unlock(mutex) g_compat_rec_mutex_unlock(mutex)
#define GCond GCompatCond
#undef g_cond_init
#define g_cond_init(cond) g_compat_cond_init(cond)
#undef g_cond_clear
#define g_cond_clear(cond) g_compat_cond_clear(cond)
#undef g_cond_signal
#define g_cond_signal(cond) g_compat_cond_signal(cond)
#endif
#undef G_COMPAT_DEFINE
#endif /* GLIB_COMPAT_H */