Sylvestre Ledru
6149f49299
replaced by .editorconfig # ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D287878
47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_StopGapEventTarget_h
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#define mozilla_StopGapEventTarget_h
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#include "nsISerialEventTarget.h"
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#include "nsCOMPtr.h"
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#include "nsISupports.h"
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#include "nsTArray.h"
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#include "mozilla/Mutex.h"
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#include "mozilla/Queue.h"
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namespace mozilla {
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// This is an event target that buffers events until a "real" event target is
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// connected to it. This is for situations where events must be dispatched, but
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// we don't know *where* yet.
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// Note: GetCurrentSerialEventTarget and friends will return the *real* event
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// target for tasks that are dispatched to this.
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class StopGapEventTarget final : public nsISerialEventTarget {
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public:
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StopGapEventTarget();
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIEVENTTARGET_FULL
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// Call this when you know the real event target. Dispatches all queued
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// events right away, and passes subsequent events straight through.
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nsresult SetRealEventTarget(nsISerialEventTarget* aRealEventTarget);
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private:
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virtual ~StopGapEventTarget();
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typedef struct TaskStruct {
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nsCOMPtr<nsIRunnable> event;
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nsIEventTarget::DispatchFlags flags;
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} TaskStruct;
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Mutex mMutex;
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nsCOMPtr<nsISerialEventTarget> mRealEventTarget MOZ_GUARDED_BY(mMutex);
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nsTArray<TaskStruct> mTasks MOZ_GUARDED_BY(mMutex);
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};
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} // namespace mozilla
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#endif // mozilla_StopGapEventTarget_h
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