[PATCH 1/1] winegstreamer: Make sure threads are not waiting for event_cond object.

[Santino Mazza]

From: Santino Mazza

First we set the EOS state, so the wait_parser_stream_buffer function doesn't
call pthread_cond_wait again. Then we must call pthread_cond_signal to make sure
that no one is waiting for it, if we don't do that, there is the possibility of
hanging wg_parser_disconnect at the free_stream call, because pthread_cond_destroy
will hang when the cond object is being waited by other threads.

Specifically this helps to fix a hang in some applications, specially Unreal Engine
games when changing sources too fast in a MediaPlayer.
---
 dlls/winegstreamer/wg_parser.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/winegstreamer/wg_parser.c b/dlls/winegstreamer/wg_parser.c
index ef274b1dc27..b99ef9dbe31 100644
--- a/dlls/winegstreamer/wg_parser.c
+++ b/dlls/winegstreamer/wg_parser.c
@@ -1708,6 +1708,8 @@ static NTSTATUS wg_parser_disconnect(void *args)
     for (i = 0; i < parser->stream_count; ++i)
     {
         parser->streams[i]->flushing = true;
+        parser->streams[i]->eos = true;
+        pthread_cond_signal(&parser->streams[i]->event_cond);
         pthread_cond_signal(&parser->streams[i]->event_empty_cond);
     }
     pthread_mutex_unlock(&parser->mutex);