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-rw-r--r--dom/media/GraphDriver.cpp8
-rw-r--r--dom/media/GraphDriver.h6
-rw-r--r--dom/media/MediaStreamGraph.cpp3
3 files changed, 9 insertions, 8 deletions
diff --git a/dom/media/GraphDriver.cpp b/dom/media/GraphDriver.cpp
index cae15eb8c..e77268131 100644
--- a/dom/media/GraphDriver.cpp
+++ b/dom/media/GraphDriver.cpp
@@ -200,7 +200,7 @@ public:
STREAM_LOG(LogLevel::Debug, ("Starting system thread"));
profiler_register_thread("MediaStreamGraph", &aLocal);
LIFECYCLE_LOG("Starting a new system driver for graph %p\n",
- mDriver->mGraphImpl);
+ mDriver->mGraphImpl.get());
RefPtr<GraphDriver> previousDriver;
{
@@ -236,7 +236,7 @@ private:
void
ThreadedDriver::Start()
{
- LIFECYCLE_LOG("Starting thread for a SystemClockDriver %p\n", mGraphImpl);
+ LIFECYCLE_LOG("Starting thread for a SystemClockDriver %p\n", mGraphImpl.get());
Unused << NS_WARN_IF(mThread);
if (!mThread) { // Ensure we haven't already started it
nsCOMPtr<nsIRunnable> event = new MediaStreamGraphInitThreadRunnable(this);
@@ -830,7 +830,9 @@ AudioCallbackDriver::Revive()
mGraphImpl->SetCurrentDriver(NextDriver());
NextDriver()->Start();
} else {
- STREAM_LOG(LogLevel::Debug, ("Starting audio threads for MediaStreamGraph %p from a new thread.", mGraphImpl));
+ STREAM_LOG(LogLevel::Debug,
+ ("Starting audio threads for MediaStreamGraph %p from a new thread.",
+ mGraphImpl.get()));
RefPtr<AsyncCubebTask> initEvent =
new AsyncCubebTask(this, AsyncCubebOperation::INIT);
initEvent->Dispatch();
diff --git a/dom/media/GraphDriver.h b/dom/media/GraphDriver.h
index 411e175d3..bb4f2689b 100644
--- a/dom/media/GraphDriver.h
+++ b/dom/media/GraphDriver.h
@@ -210,10 +210,8 @@ protected:
// Time of the end of this graph iteration. This must be accessed while having
// the monitor.
GraphTime mIterationEnd;
- // The MediaStreamGraphImpl that owns this driver. This has a lifetime longer
- // than the driver, and will never be null. Hence, it can be accesed without
- // monitor.
- MediaStreamGraphImpl* mGraphImpl;
+ // The MediaStreamGraphImpl associated with this driver.
+ const RefPtr<MediaStreamGraphImpl> mGraphImpl;
// This enum specifies the wait state of the driver.
enum WaitState {
diff --git a/dom/media/MediaStreamGraph.cpp b/dom/media/MediaStreamGraph.cpp
index e2934cbb2..1b9e4f674 100644
--- a/dom/media/MediaStreamGraph.cpp
+++ b/dom/media/MediaStreamGraph.cpp
@@ -3371,7 +3371,8 @@ MediaStreamGraphImpl::Destroy()
// First unregister from memory reporting.
UnregisterWeakMemoryReporter(this);
- // Clear the self reference which will destroy this instance.
+ // Clear the self reference which will destroy this instance if all
+ // associated GraphDrivers are destroyed.
mSelfRef = nullptr;
}