Instead of having _Shutdown and the constructors' failures paths mix together creating confusion about what should be released where, we can designate ::Shutdown/::Release to shutting down fully initialized objects without checks, and keep the partially-created object cleanup code in the constructor.
Signed-off-by: Derek Lesho dlesho@codeweavers.com --- v4: No changes. --- dlls/winegstreamer/media_source.c | 102 +++++++++++++++++++----------- 1 file changed, 65 insertions(+), 37 deletions(-)
diff --git a/dlls/winegstreamer/media_source.c b/dlls/winegstreamer/media_source.c index 01ab626254a..7efa3cc06ba 100644 --- a/dlls/winegstreamer/media_source.c +++ b/dlls/winegstreamer/media_source.c @@ -733,6 +733,12 @@ static HRESULT new_media_stream(struct media_source *source, object->IMFMediaStream_iface.lpVtbl = &media_stream_vtbl; object->ref = 1;
+ if (FAILED(hr = MFCreateEventQueue(&object->event_queue))) + { + free(object); + return hr; + } + IMFMediaSource_AddRef(&source->IMFMediaSource_iface); object->parent_source = source; object->stream_id = stream_id; @@ -741,20 +747,11 @@ static HRESULT new_media_stream(struct media_source *source, object->eos = FALSE; object->wg_stream = wg_stream;
- if (FAILED(hr = MFCreateEventQueue(&object->event_queue))) - goto fail; - TRACE("Created stream object %p.\n", object);
*out_stream = object;
return S_OK; - -fail: - WARN("Failed to construct media stream, hr %#x.\n", hr); - - IMFMediaStream_Release(&object->IMFMediaStream_iface); - return hr; }
static HRESULT media_stream_init_desc(struct media_stream *stream) @@ -847,10 +844,16 @@ static HRESULT media_stream_init_desc(struct media_stream *stream) goto done;
if (FAILED(hr = IMFStreamDescriptor_GetMediaTypeHandler(stream->descriptor, &type_handler))) + { + IMFStreamDescriptor_Release(stream->descriptor); goto done; + }
if (FAILED(hr = IMFMediaTypeHandler_SetCurrentMediaType(type_handler, stream_types[0]))) + { + IMFStreamDescriptor_Release(stream->descriptor); goto done; + }
done: if (type_handler) @@ -1213,19 +1216,13 @@ static HRESULT WINAPI media_source_Shutdown(IMFMediaSource *iface)
unix_funcs->wg_parser_disconnect(source->wg_parser);
- if (source->read_thread) - { - source->read_thread_shutdown = true; - WaitForSingleObject(source->read_thread, INFINITE); - CloseHandle(source->read_thread); - } + source->read_thread_shutdown = true; + WaitForSingleObject(source->read_thread, INFINITE); + CloseHandle(source->read_thread);
- if (source->pres_desc) - IMFPresentationDescriptor_Release(source->pres_desc); - if (source->event_queue) - IMFMediaEventQueue_Shutdown(source->event_queue); - if (source->byte_stream) - IMFByteStream_Release(source->byte_stream); + IMFPresentationDescriptor_Release(source->pres_desc); + IMFMediaEventQueue_Shutdown(source->event_queue); + IMFByteStream_Release(source->byte_stream);
for (i = 0; i < source->stream_count; i++) { @@ -1233,23 +1230,18 @@ static HRESULT WINAPI media_source_Shutdown(IMFMediaSource *iface)
stream->state = STREAM_SHUTDOWN;
- if (stream->event_queue) - IMFMediaEventQueue_Shutdown(stream->event_queue); - if (stream->descriptor) - IMFStreamDescriptor_Release(stream->descriptor); - if (stream->parent_source) - IMFMediaSource_Release(&stream->parent_source->IMFMediaSource_iface); + IMFMediaEventQueue_Shutdown(stream->event_queue); + IMFStreamDescriptor_Release(stream->descriptor); + IMFMediaSource_Release(&stream->parent_source->IMFMediaSource_iface);
IMFMediaStream_Release(&stream->IMFMediaStream_iface); }
unix_funcs->wg_parser_destroy(source->wg_parser);
- if (source->stream_count) - free(source->streams); + free(source->streams);
- if (source->async_commands_queue) - MFUnlockWorkQueue(source->async_commands_queue); + MFUnlockWorkQueue(source->async_commands_queue);
return S_OK; } @@ -1274,6 +1266,7 @@ static const IMFMediaSourceVtbl IMFMediaSource_vtbl = static HRESULT media_source_constructor(IMFByteStream *bytestream, struct media_source **out_media_source) { IMFStreamDescriptor **descriptors = NULL; + unsigned int stream_count = UINT32_MAX; struct media_source *object; UINT64 total_pres_time = 0; struct wg_parser *parser; @@ -1337,15 +1330,15 @@ static HRESULT media_source_constructor(IMFByteStream *bytestream, struct media_ * leak occurs with native. */ unix_funcs->wg_parser_set_unlimited_buffering(parser);
- object->stream_count = unix_funcs->wg_parser_get_stream_count(parser); + stream_count = unix_funcs->wg_parser_get_stream_count(parser);
- if (!(object->streams = calloc(object->stream_count, sizeof(*object->streams)))) + if (!(object->streams = calloc(stream_count, sizeof(*object->streams)))) { hr = E_OUTOFMEMORY; goto fail; }
- for (i = 0; i < object->stream_count; ++i) + for (i = 0; i < stream_count; ++i) { if (FAILED(hr = new_media_stream(object, unix_funcs->wg_parser_get_stream(parser, i), i, &object->streams[i]))) goto fail; @@ -1353,9 +1346,13 @@ static HRESULT media_source_constructor(IMFByteStream *bytestream, struct media_ if (FAILED(hr = media_stream_init_desc(object->streams[i]))) { ERR("Failed to finish initialization of media stream %p, hr %x.\n", object->streams[i], hr); - IMFMediaStream_Release(&object->streams[i]->IMFMediaStream_iface); + IMFMediaSource_Release(&object->streams[i]->parent_source->IMFMediaSource_iface); + IMFMediaEventQueue_Release(object->streams[i]->event_queue); + free(object->streams[i]); goto fail; } + + object->stream_count++; }
/* init presentation descriptor */ @@ -1392,8 +1389,39 @@ static HRESULT media_source_constructor(IMFByteStream *bytestream, struct media_ fail: WARN("Failed to construct MFMediaSource, hr %#x.\n", hr);
- free(descriptors); - IMFMediaSource_Release(&object->IMFMediaSource_iface); + if (descriptors) + { + for(i = 0; i < object->stream_count; i++) + IMFStreamDescriptor_Release(descriptors[i]); + free(descriptors); + } + for (i = 0; i < object->stream_count; i++) + { + struct media_stream *stream = object->streams[i]; + + IMFMediaEventQueue_Release(stream->event_queue); + IMFStreamDescriptor_Release(stream->descriptor); + IMFMediaSource_Release(&stream->parent_source->IMFMediaSource_iface); + + free(stream); + } + free(object->streams); + if (stream_count != UINT32_MAX) + unix_funcs->wg_parser_disconnect(object->wg_parser); + if (object->read_thread) + { + object->read_thread_shutdown = true; + WaitForSingleObject(object->read_thread, INFINITE); + CloseHandle(object->read_thread); + } + if (object->wg_parser) + unix_funcs->wg_parser_destroy(object->wg_parser); + if (object->async_commands_queue) + MFUnlockWorkQueue(object->async_commands_queue); + if (object->event_queue) + IMFMediaEventQueue_Release(object->event_queue); + IMFByteStream_Release(object->byte_stream); + free(object); return hr; }