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33bb32f549
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-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
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}
convert MOZ_OVERRIDE override
convert MOZ_FINAL final
106 lines
3.8 KiB
C++
106 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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 nsInputStreamPump_h__
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#define nsInputStreamPump_h__
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#include "nsIInputStreamPump.h"
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#include "nsIAsyncInputStream.h"
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#include "nsIThreadRetargetableRequest.h"
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#include "nsCOMPtr.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/ReentrantMonitor.h"
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class nsIInputStream;
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class nsILoadGroup;
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class nsIStreamListener;
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class nsInputStreamPump final : public nsIInputStreamPump
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, public nsIInputStreamCallback
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, public nsIThreadRetargetableRequest
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{
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~nsInputStreamPump();
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public:
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typedef mozilla::ReentrantMonitorAutoEnter ReentrantMonitorAutoEnter;
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIREQUEST
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NS_DECL_NSIINPUTSTREAMPUMP
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NS_DECL_NSIINPUTSTREAMCALLBACK
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NS_DECL_NSITHREADRETARGETABLEREQUEST
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nsInputStreamPump();
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static nsresult
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Create(nsInputStreamPump **result,
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nsIInputStream *stream,
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int64_t streamPos = -1,
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int64_t streamLen = -1,
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uint32_t segsize = 0,
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uint32_t segcount = 0,
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bool closeWhenDone = false);
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typedef void (*PeekSegmentFun)(void *closure, const uint8_t *buf,
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uint32_t bufLen);
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/**
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* Peek into the first chunk of data that's in the stream. Note that this
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* method will not call the callback when there is no data in the stream.
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* The callback will be called at most once.
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*
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* The data from the stream will not be consumed, i.e. the pump's listener
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* can still read all the data.
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*
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* Do not call before asyncRead. Do not call after onStopRequest.
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*/
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nsresult PeekStream(PeekSegmentFun callback, void *closure);
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/**
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* Dispatched (to the main thread) by OnStateStop if it's called off main
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* thread. Updates mState based on return value of OnStateStop.
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*/
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nsresult CallOnStateStop();
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protected:
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enum {
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STATE_IDLE,
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STATE_START,
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STATE_TRANSFER,
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STATE_STOP
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};
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nsresult EnsureWaiting();
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uint32_t OnStateStart();
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uint32_t OnStateTransfer();
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uint32_t OnStateStop();
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uint32_t mState;
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nsCOMPtr<nsILoadGroup> mLoadGroup;
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nsCOMPtr<nsIStreamListener> mListener;
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nsCOMPtr<nsISupports> mListenerContext;
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nsCOMPtr<nsIEventTarget> mTargetThread;
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nsCOMPtr<nsIInputStream> mStream;
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nsCOMPtr<nsIAsyncInputStream> mAsyncStream;
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uint64_t mStreamOffset;
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uint64_t mStreamLength;
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uint32_t mSegSize;
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uint32_t mSegCount;
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nsresult mStatus;
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uint32_t mSuspendCount;
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uint32_t mLoadFlags;
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bool mIsPending;
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// True while in OnInputStreamReady, calling OnStateStart, OnStateTransfer
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// and OnStateStop. Used to prevent calls to AsyncWait during callbacks.
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bool mProcessingCallbacks;
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// True if waiting on the "input stream ready" callback.
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bool mWaitingForInputStreamReady;
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bool mCloseWhenDone;
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bool mRetargeting;
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// Protects state/member var accesses across multiple threads.
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mozilla::ReentrantMonitor mMonitor;
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};
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#endif // !nsInputStreamChannel_h__
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