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72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set sw=2 ts=8 et tw=80 : */
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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 ClosingService_h__
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#define ClosingService_h__
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#include "nsTArray.h"
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#include "nspr.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/Monitor.h"
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//-----------------------------------------------------------------------------
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// ClosingService
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//-----------------------------------------------------------------------------
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// A helper class carrying call to PR_Close on FD to a separate thread -
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// closingThread. This may be a workaround for shutdown blocks that are caused
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// by serial calls to close on UDP and TCP sockets.
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// This service is started by nsIOService and also the class adds itself as an
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// observer to "xpcom-shutdown-threads" notification where we join the thread
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// and remove reference.
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// During worktime of the thread the class is also self-referenced,
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// since observer service might throw the reference away sooner than the thread
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// is actually done.
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namespace mozilla {
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namespace net {
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class ClosingService final
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{
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ClosingService)
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ClosingService();
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// Attaching this layer on tcp or udp sockets PRClose will be send to the
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// closingThread.
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static nsresult AttachIOLayer(PRFileDesc *aFd);
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static void Start();
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static void Shutdown();
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void PostRequest(PRFileDesc *aFd);
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private:
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~ClosingService() {}
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nsresult StartInternal();
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void ShutdownInternal();
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void ThreadFunc();
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static void ThreadFunc(void *aClosure)
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{ static_cast<ClosingService*>(aClosure)->ThreadFunc(); }
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void SendPRCloseTelemetry(PRIntervalTime aStart,
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mozilla::Telemetry::ID aIDNormal,
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mozilla::Telemetry::ID aIDShutdown,
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mozilla::Telemetry::ID aIDConnectivityChange,
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mozilla::Telemetry::ID aIDLinkChange,
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mozilla::Telemetry::ID aIDOffline);
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static ClosingService* sInstance;
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Atomic<bool> mShutdown;
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nsTArray<PRFileDesc *> mQueue;
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mozilla::Monitor mMonitor;
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PRThread *mThread;
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};
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} // namespace net
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} // namespace mozilla
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#endif // ClosingService_h_
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