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68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* 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_netwerk_socket_nsNamedPipeService_h
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#define mozilla_netwerk_socket_nsNamedPipeService_h
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#include <windows.h>
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#include "mozilla/Atomics.h"
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#include "mozilla/Mutex.h"
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#include "nsINamedPipeService.h"
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#include "nsIObserver.h"
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#include "nsIRunnable.h"
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#include "nsIThread.h"
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#include "nsTArray.h"
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#include "mozilla/StaticPtr.h"
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namespace mozilla {
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namespace net {
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class NamedPipeService final : public nsINamedPipeService,
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public nsIObserver,
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public nsIRunnable {
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public:
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSINAMEDPIPESERVICE
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NS_DECL_NSIOBSERVER
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NS_DECL_NSIRUNNABLE
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static already_AddRefed<nsINamedPipeService> GetOrCreate();
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private:
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explicit NamedPipeService();
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virtual ~NamedPipeService() = default;
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nsresult Init();
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void Shutdown();
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void RemoveRetiredObjects();
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HANDLE mIocp; // native handle to the I/O completion port.
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Atomic<bool>
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mIsShutdown; // set to true to stop the event loop running by mThread.
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nsCOMPtr<nsIThread> mThread; // worker thread to get I/O events.
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/**
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* The observers is maintained in |mObservers| to ensure valid life-cycle.
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* We don't remove the handle and corresponding observer directly, instead
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* the handle and observer into a "retired" list and close/remove them in
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* the worker thread to avoid a race condition that might happen between
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* |CloseHandle()| and |GetQueuedCompletionStatus()|.
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*/
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Mutex mLock MOZ_UNANNOTATED;
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nsTArray<nsCOMPtr<nsINamedPipeDataObserver>>
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mObservers; // protected by mLock
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nsTArray<nsCOMPtr<nsINamedPipeDataObserver>>
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mRetiredObservers; // protected by mLock
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nsTArray<HANDLE> mRetiredHandles; // protected by mLock
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static StaticRefPtr<NamedPipeService> gSingleton;
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};
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} // namespace net
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} // namespace mozilla
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#endif // mozilla_netwerk_socket_nsNamedPipeService_h
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