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libs: make GstVaapiVideoPool thread-safe.

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=707108

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
This commit is contained in:
XuGuangxin 2013-08-29 13:44:22 +08:00 committed by Gwenole Beauchesne
parent f9d0d6e272
commit f9ee8703cf
2 changed files with 93 additions and 22 deletions
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114
gst-libs/gst/vaapi/gstvaapivideopool.c
View file

@ -64,6 +64,7 @@ gst_vaapi_video_pool_init(GstVaapiVideoPool *pool, GstVaapiDisplay *display,
pool->capacity = 0;
g_queue_init(&pool->free_objects);
g_mutex_init(&pool->mutex);
}
void
@ -73,6 +74,7 @@ gst_vaapi_video_pool_finalize(GstVaapiVideoPool *pool)
g_queue_foreach(&pool->free_objects, (GFunc)gst_vaapi_object_unref, NULL);
g_queue_clear(&pool->free_objects);
gst_vaapi_display_replace(&pool->display, NULL);
g_mutex_clear(&pool->mutex);
}
/**
@ -163,13 +165,11 @@ gst_vaapi_video_pool_get_object_type(GstVaapiVideoPool *pool)
*
* Return value: a possibly newly allocated object, or %NULL on error
*/
gpointer
gst_vaapi_video_pool_get_object(GstVaapiVideoPool *pool)
static gpointer
gst_vaapi_video_pool_get_object_unlocked(GstVaapiVideoPool *pool)
{
gpointer object;
g_return_val_if_fail(pool != NULL, NULL);
if (pool->capacity && pool->used_count >= pool->capacity)
return NULL;
@ -185,6 +185,19 @@ gst_vaapi_video_pool_get_object(GstVaapiVideoPool *pool)
return gst_vaapi_object_ref(object);
}
gpointer
gst_vaapi_video_pool_get_object(GstVaapiVideoPool *pool)
{
gpointer object;
g_return_val_if_fail(pool != NULL, NULL);
g_mutex_lock(&pool->mutex);
object = gst_vaapi_video_pool_get_object_unlocked(pool);
g_mutex_unlock(&pool->mutex);
return object;
}
/**
* gst_vaapi_video_pool_put_object:
* @pool: a #GstVaapiVideoPool
@ -195,14 +208,12 @@ gst_vaapi_video_pool_get_object(GstVaapiVideoPool *pool)
* Calling this function with an arbitrary object yields undefined
* behaviour.
*/
void
gst_vaapi_video_pool_put_object(GstVaapiVideoPool *pool, gpointer object)
static void
gst_vaapi_video_pool_put_object_unlocked(GstVaapiVideoPool *pool,
gpointer object)
{
GList *elem;
g_return_if_fail(pool != NULL);
g_return_if_fail(object != NULL);
elem = g_list_find(pool->used_objects, object);
if (!elem)
return;
@ -213,6 +224,17 @@ gst_vaapi_video_pool_put_object(GstVaapiVideoPool *pool, gpointer object)
g_queue_push_tail(&pool->free_objects, object);
}
void
gst_vaapi_video_pool_put_object(GstVaapiVideoPool *pool, gpointer object)
{
g_return_if_fail(pool != NULL);
g_return_if_fail(object != NULL);
g_mutex_lock(&pool->mutex);
gst_vaapi_video_pool_put_object_unlocked(pool, object);
g_mutex_unlock(&pool->mutex);
}
/**
* gst_vaapi_video_pool_add_object:
* @pool: a #GstVaapiVideoPool
@ -224,14 +246,26 @@ gst_vaapi_video_pool_put_object(GstVaapiVideoPool *pool, gpointer object)
*
* Return value: %TRUE on success.
*/
static inline gboolean
gst_vaapi_video_pool_add_object_unlocked(GstVaapiVideoPool *pool,
gpointer object)
{
g_queue_push_tail(&pool->free_objects, gst_vaapi_object_ref(object));
return TRUE;
}
gboolean
gst_vaapi_video_pool_add_object(GstVaapiVideoPool *pool, gpointer object)
{
gboolean success;
g_return_val_if_fail(pool != NULL, FALSE);
g_return_val_if_fail(object != NULL, FALSE);
g_queue_push_tail(&pool->free_objects, gst_vaapi_object_ref(object));
return TRUE;
g_mutex_lock(&pool->mutex);
success = gst_vaapi_video_pool_add_object_unlocked(pool, object);
g_mutex_unlock(&pool->mutex);
return success;
}
/**
@ -245,21 +279,33 @@ gst_vaapi_video_pool_add_object(GstVaapiVideoPool *pool, gpointer object)
*
* Return value: %TRUE on success.
*/
gboolean
gst_vaapi_video_pool_add_objects(GstVaapiVideoPool *pool, GPtrArray *objects)
static gboolean
gst_vaapi_video_pool_add_objects_unlocked(GstVaapiVideoPool *pool,
GPtrArray *objects)
{
guint i;
g_return_val_if_fail(pool != NULL, FALSE);
for (i = 0; i < objects->len; i++) {
gpointer const object = g_ptr_array_index(objects, i);
if (!gst_vaapi_video_pool_add_object(pool, object))
if (!gst_vaapi_video_pool_add_object_unlocked(pool, object))
return FALSE;
}
return TRUE;
}
gboolean
gst_vaapi_video_pool_add_objects(GstVaapiVideoPool *pool, GPtrArray *objects)
{
gboolean success;
g_return_val_if_fail(pool != NULL, FALSE);
g_mutex_lock(&pool->mutex);
success = gst_vaapi_video_pool_add_objects_unlocked(pool, objects);
g_mutex_unlock(&pool->mutex);
return success;
}
/**
* gst_vaapi_video_pool_get_size:
* @pool: a #GstVaapiVideoPool
@ -271,9 +317,14 @@ gst_vaapi_video_pool_add_objects(GstVaapiVideoPool *pool, GPtrArray *objects)
guint
gst_vaapi_video_pool_get_size(GstVaapiVideoPool *pool)
{
guint size;
g_return_val_if_fail(pool != NULL, 0);
return g_queue_get_length(&pool->free_objects);
g_mutex_lock(&pool->mutex);
size = g_queue_get_length(&pool->free_objects);
g_mutex_unlock(&pool->mutex);
return size;
}
/**
@ -288,13 +339,11 @@ gst_vaapi_video_pool_get_size(GstVaapiVideoPool *pool)
*
* Return value: %TRUE on success
*/
gboolean
gst_vaapi_video_pool_reserve(GstVaapiVideoPool *pool, guint n)
static gboolean
gst_vaapi_video_pool_reserve_unlocked(GstVaapiVideoPool *pool, guint n)
{
guint i, num_allocated;
g_return_val_if_fail(pool != NULL, 0);
num_allocated = gst_vaapi_video_pool_get_size(pool) + pool->used_count;
if (n < num_allocated)
return TRUE;
@ -311,6 +360,19 @@ gst_vaapi_video_pool_reserve(GstVaapiVideoPool *pool, guint n)
return TRUE;
}
gboolean
gst_vaapi_video_pool_reserve(GstVaapiVideoPool *pool, guint n)
{
gboolean success;
g_return_val_if_fail(pool != NULL, 0);
g_mutex_lock(&pool->mutex);
success = gst_vaapi_video_pool_reserve_unlocked(pool, n);
g_mutex_unlock(&pool->mutex);
return success;
}
/**
* gst_vaapi_video_pool_get_capacity:
* @pool: a #GstVaapiVideoPool
@ -323,9 +385,15 @@ gst_vaapi_video_pool_reserve(GstVaapiVideoPool *pool, guint n)
guint
gst_vaapi_video_pool_get_capacity(GstVaapiVideoPool *pool)
{
guint capacity;
g_return_val_if_fail(pool != NULL, 0);
return pool->capacity;
g_mutex_lock(&pool->mutex);
capacity = pool->capacity;
g_mutex_unlock(&pool->mutex);
return capacity;
}
/**
@ -340,5 +408,7 @@ gst_vaapi_video_pool_set_capacity(GstVaapiVideoPool *pool, guint capacity)
{
g_return_if_fail(pool != NULL);
g_mutex_lock(&pool->mutex);
pool->capacity = capacity;
g_mutex_unlock(&pool->mutex);
}

1
gst-libs/gst/vaapi/gstvaapivideopool_priv.h
View file

@ -50,6 +50,7 @@ struct _GstVaapiVideoPool {
GList *used_objects;
guint used_count;
guint capacity;
GMutex mutex;
};
/**