[FFmpeg-devel] [PATCH 31/35] lavu/threadmessage: switch to new FIFO API

[Anton Khirnov]

---
 libavutil/threadmessage.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/libavutil/threadmessage.c b/libavutil/threadmessage.c
index 764b7fb813..39d3525a78 100644
--- a/libavutil/threadmessage.c
+++ b/libavutil/threadmessage.c
@@ -64,7 +64,7 @@ int av_thread_message_queue_alloc(AVThreadMessageQueue **mq,
         av_free(rmq);
         return AVERROR(ret);
     }
-    if (!(rmq->fifo = av_fifo_alloc(elsize * nelem))) {
+    if (!(rmq->fifo = av_fifo_alloc2(nelem, elsize, 0))) {
         pthread_cond_destroy(&rmq->cond_send);
         pthread_cond_destroy(&rmq->cond_recv);
         pthread_mutex_destroy(&rmq->lock);
@@ -107,9 +107,9 @@ int av_thread_message_queue_nb_elems(AVThreadMessageQueue *mq)
 #if HAVE_THREADS
     int ret;
     pthread_mutex_lock(&mq->lock);
-    ret = av_fifo_size(mq->fifo);
+    ret = av_fifo_can_read(mq->fifo);
     pthread_mutex_unlock(&mq->lock);
-    return ret / mq->elsize;
+    return ret;
 #else
     return AVERROR(ENOSYS);
 #endif
@@ -121,14 +121,14 @@ static int av_thread_message_queue_send_locked(AVThreadMessageQueue *mq,
                                                void *msg,
                                                unsigned flags)
 {
-    while (!mq->err_send && av_fifo_space(mq->fifo) < mq->elsize) {
+    while (!mq->err_send && !av_fifo_can_write(mq->fifo)) {
         if ((flags & AV_THREAD_MESSAGE_NONBLOCK))
             return AVERROR(EAGAIN);
         pthread_cond_wait(&mq->cond_send, &mq->lock);
     }
     if (mq->err_send)
         return mq->err_send;
-    av_fifo_generic_write(mq->fifo, msg, mq->elsize, NULL);
+    av_fifo_write(mq->fifo, msg, 1);
     /* one message is sent, signal one receiver */
     pthread_cond_signal(&mq->cond_recv);
     return 0;
@@ -138,14 +138,14 @@ static int av_thread_message_queue_recv_locked(AVThreadMessageQueue *mq,
                                                void *msg,
                                                unsigned flags)
 {
-    while (!mq->err_recv && av_fifo_size(mq->fifo) < mq->elsize) {
+    while (!mq->err_recv && !av_fifo_can_read(mq->fifo)) {
         if ((flags & AV_THREAD_MESSAGE_NONBLOCK))
             return AVERROR(EAGAIN);
         pthread_cond_wait(&mq->cond_recv, &mq->lock);
     }
-    if (av_fifo_size(mq->fifo) < mq->elsize)
+    if (!av_fifo_can_read(mq->fifo))
         return mq->err_recv;
-    av_fifo_generic_read(mq->fifo, msg, mq->elsize, NULL);
+    av_fifo_read(mq->fifo, msg, 1);
     /* one message space appeared, signal one sender */
     pthread_cond_signal(&mq->cond_send);
     return 0;
@@ -208,25 +208,25 @@ void av_thread_message_queue_set_err_recv(AVThreadMessageQueue *mq,
 }
 
 #if HAVE_THREADS
-static void free_func_wrap(void *arg, void *msg, int size)
+static int free_func_wrap(void *arg, void *buf, size_t *nb_elems)
 {
     AVThreadMessageQueue *mq = arg;
-    mq->free_func(msg);
+    uint8_t *msg = buf;
+    for (size_t i = 0; i < *nb_elems; i++)
+        mq->free_func(msg + i * mq->elsize);
+    return 0;
 }
 #endif
 
 void av_thread_message_flush(AVThreadMessageQueue *mq)
 {
 #if HAVE_THREADS
-    int used, off;
-    void *free_func = mq->free_func;
+    size_t used;
 
     pthread_mutex_lock(&mq->lock);
-    used = av_fifo_size(mq->fifo);
-    if (free_func)
-        for (off = 0; off < used; off += mq->elsize)
-            av_fifo_generic_peek_at(mq->fifo, mq, off, mq->elsize, free_func_wrap);
-    av_fifo_drain(mq->fifo, used);
+    used = av_fifo_can_read(mq->fifo);
+    if (mq->free_func)
+        av_fifo_read_to_cb(mq->fifo, free_func_wrap, mq, &used);
     /* only the senders need to be notified since the queue is empty and there
      * is nothing to read */
     pthread_cond_broadcast(&mq->cond_send);
-- 
2.33.0