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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_netwerk_socket_nsNamedPipeService_h
#define mozilla_netwerk_socket_nsNamedPipeService_h
#include <windows.h>
#include "mozilla/Atomics.h"
#include "mozilla/Mutex.h"
#include "nsINamedPipeService.h"
#include "nsIObserver.h"
#include "nsIRunnable.h"
#include "nsIThread.h"
#include "nsTArray.h"
#include "mozilla/StaticPtr.h"
namespace mozilla {
namespace net {
class NamedPipeService final : public nsINamedPipeService,
public nsIObserver,
public nsIRunnable {
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSINAMEDPIPESERVICE
NS_DECL_NSIOBSERVER
NS_DECL_NSIRUNNABLE
static already_AddRefed<nsINamedPipeService> GetOrCreate();
private:
explicit NamedPipeService();
virtual ~NamedPipeService() = default;
nsresult Init();
void Shutdown();
void RemoveRetiredObjects();
HANDLE mIocp; // native handle to the I/O completion port.
Atomic<bool>
mIsShutdown; // set to true to stop the event loop running by mThread.
nsCOMPtr<nsIThread> mThread; // worker thread to get I/O events.
/**
* The observers is maintained in |mObservers| to ensure valid life-cycle.
* We don't remove the handle and corresponding observer directly, instead
* the handle and observer into a "retired" list and close/remove them in
* the worker thread to avoid a race condition that might happen between
* |CloseHandle()| and |GetQueuedCompletionStatus()|.
*/
Mutex mLock MOZ_UNANNOTATED;
nsTArray<nsCOMPtr<nsINamedPipeDataObserver>>
mObservers; // protected by mLock
nsTArray<nsCOMPtr<nsINamedPipeDataObserver>>
mRetiredObservers; // protected by mLock
nsTArray<HANDLE> mRetiredHandles; // protected by mLock
static StaticRefPtr<NamedPipeService> gSingleton;
};
} // namespace net
} // namespace mozilla
#endif // mozilla_netwerk_socket_nsNamedPipeService_h
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