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0fd9123eac
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convert PRInt8 int8_t
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257 lines
9.8 KiB
C++
257 lines
9.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; 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 nsHttpConnection_h__
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#define nsHttpConnection_h__
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#include "nsHttp.h"
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#include "nsHttpConnectionInfo.h"
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#include "nsAHttpTransaction.h"
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#include "nsXPIDLString.h"
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#include "nsCOMPtr.h"
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#include "nsAutoPtr.h"
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#include "prinrval.h"
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#include "ASpdySession.h"
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#include "mozilla/TimeStamp.h"
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#include "nsIStreamListener.h"
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#include "nsISocketTransport.h"
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#include "nsIAsyncInputStream.h"
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#include "nsIAsyncOutputStream.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIEventTarget.h"
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class nsHttpRequestHead;
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class nsHttpResponseHead;
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//-----------------------------------------------------------------------------
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// nsHttpConnection - represents a connection to a HTTP server (or proxy)
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//
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// NOTE: this objects lives on the socket thread only. it should not be
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// accessed from any other thread.
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//-----------------------------------------------------------------------------
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class nsHttpConnection : public nsAHttpSegmentReader
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, public nsAHttpSegmentWriter
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, public nsIInputStreamCallback
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, public nsIOutputStreamCallback
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, public nsITransportEventSink
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, public nsIInterfaceRequestor
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSAHTTPSEGMENTREADER
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NS_DECL_NSAHTTPSEGMENTWRITER
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NS_DECL_NSIINPUTSTREAMCALLBACK
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NS_DECL_NSIOUTPUTSTREAMCALLBACK
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NS_DECL_NSITRANSPORTEVENTSINK
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NS_DECL_NSIINTERFACEREQUESTOR
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nsHttpConnection();
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virtual ~nsHttpConnection();
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// Initialize the connection:
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// info - specifies the connection parameters.
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// maxHangTime - limits the amount of time this connection can spend on a
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// single transaction before it should no longer be kept
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// alive. a value of 0xffff indicates no limit.
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nsresult Init(nsHttpConnectionInfo *info, uint16_t maxHangTime,
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nsISocketTransport *, nsIAsyncInputStream *,
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nsIAsyncOutputStream *, nsIInterfaceRequestor *,
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nsIEventTarget *, PRIntervalTime);
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// Activate causes the given transaction to be processed on this
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// connection. It fails if there is already an existing transaction unless
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// a multiplexing protocol such as SPDY is being used
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nsresult Activate(nsAHttpTransaction *, uint8_t caps, int32_t pri);
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// Close the underlying socket transport.
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void Close(nsresult reason);
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//-------------------------------------------------------------------------
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// XXX document when these are ok to call
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bool SupportsPipelining();
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bool IsKeepAlive() { return mUsingSpdyVersion ||
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(mKeepAliveMask && mKeepAlive); }
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bool CanReuse(); // can this connection be reused?
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bool CanDirectlyActivate();
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// Returns time in seconds for how long connection can be reused.
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uint32_t TimeToLive();
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void DontReuse();
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void DropTransport() { DontReuse(); mSocketTransport = 0; }
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bool IsProxyConnectInProgress()
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{
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return mProxyConnectInProgress;
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}
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bool LastTransactionExpectedNoContent()
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{
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return mLastTransactionExpectedNoContent;
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}
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void SetLastTransactionExpectedNoContent(bool val)
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{
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mLastTransactionExpectedNoContent = val;
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}
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nsISocketTransport *Transport() { return mSocketTransport; }
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nsAHttpTransaction *Transaction() { return mTransaction; }
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nsHttpConnectionInfo *ConnectionInfo() { return mConnInfo; }
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// nsAHttpConnection compatible methods (non-virtual):
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nsresult OnHeadersAvailable(nsAHttpTransaction *, nsHttpRequestHead *, nsHttpResponseHead *, bool *reset);
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void CloseTransaction(nsAHttpTransaction *, nsresult reason);
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void GetConnectionInfo(nsHttpConnectionInfo **ci) { NS_IF_ADDREF(*ci = mConnInfo); }
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nsresult TakeTransport(nsISocketTransport **,
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nsIAsyncInputStream **,
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nsIAsyncOutputStream **);
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void GetSecurityInfo(nsISupports **);
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bool IsPersistent() { return IsKeepAlive(); }
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bool IsReused();
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void SetIsReusedAfter(uint32_t afterMilliseconds);
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void SetIdleTimeout(PRIntervalTime val) {mIdleTimeout = val;}
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nsresult PushBack(const char *data, uint32_t length);
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nsresult ResumeSend();
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nsresult ResumeRecv();
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int64_t MaxBytesRead() {return mMaxBytesRead;}
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static NS_METHOD ReadFromStream(nsIInputStream *, void *, const char *,
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uint32_t, uint32_t, uint32_t *);
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// When a persistent connection is in the connection manager idle
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// connection pool, the nsHttpConnection still reads errors and hangups
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// on the socket so that it can be proactively released if the server
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// initiates a termination. Only call on socket thread.
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void BeginIdleMonitoring();
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void EndIdleMonitoring();
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bool UsingSpdy() { return !!mUsingSpdyVersion; }
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bool EverUsedSpdy() { return mEverUsedSpdy; }
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// true when connection SSL NPN phase is complete and we know
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// authoritatively whether UsingSpdy() or not.
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bool ReportedNPN() { return mReportedSpdy; }
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// When the connection is active this is called every 1 second
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void ReadTimeoutTick(PRIntervalTime now);
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nsAHttpTransaction::Classifier Classification() { return mClassification; }
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void Classify(nsAHttpTransaction::Classifier newclass)
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{
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mClassification = newclass;
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}
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// When the connection is active this is called every second
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void ReadTimeoutTick();
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int64_t BytesWritten() { return mTotalBytesWritten; }
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void PrintDiagnostics(nsCString &log);
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private:
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// called to cause the underlying socket to start speaking SSL
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nsresult ProxyStartSSL();
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nsresult OnTransactionDone(nsresult reason);
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nsresult OnSocketWritable();
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nsresult OnSocketReadable();
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nsresult SetupProxyConnect();
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PRIntervalTime IdleTime();
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bool IsAlive();
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bool SupportsPipelining(nsHttpResponseHead *);
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// Makes certain the SSL handshake is complete and NPN negotiation
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// has had a chance to happen
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bool EnsureNPNComplete();
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void SetupNPN(uint8_t caps);
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// Inform the connection manager of any SPDY Alternate-Protocol
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// redirections
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void HandleAlternateProtocol(nsHttpResponseHead *);
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// Start the Spdy transaction handler when NPN indicates spdy/*
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void StartSpdy(uint8_t versionLevel);
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// Directly Add a transaction to an active connection for SPDY
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nsresult AddTransaction(nsAHttpTransaction *, int32_t);
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private:
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nsCOMPtr<nsISocketTransport> mSocketTransport;
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nsCOMPtr<nsIAsyncInputStream> mSocketIn;
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nsCOMPtr<nsIAsyncOutputStream> mSocketOut;
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nsresult mSocketInCondition;
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nsresult mSocketOutCondition;
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nsCOMPtr<nsIInputStream> mProxyConnectStream;
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nsCOMPtr<nsIInputStream> mRequestStream;
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// mTransaction only points to the HTTP Transaction callbacks if the
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// transaction is open, otherwise it is null.
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nsRefPtr<nsAHttpTransaction> mTransaction;
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nsCOMPtr<nsIInterfaceRequestor> mCallbacks;
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nsCOMPtr<nsIEventTarget> mCallbackTarget;
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nsRefPtr<nsHttpConnectionInfo> mConnInfo;
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PRIntervalTime mLastReadTime;
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PRIntervalTime mMaxHangTime; // max download time before dropping keep-alive status
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PRIntervalTime mIdleTimeout; // value of keep-alive: timeout=
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PRIntervalTime mConsiderReusedAfterInterval;
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PRIntervalTime mConsiderReusedAfterEpoch;
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int64_t mCurrentBytesRead; // data read per activation
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int64_t mMaxBytesRead; // max read in 1 activation
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int64_t mTotalBytesRead; // total data read
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int64_t mTotalBytesWritten; // does not include CONNECT tunnel
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nsRefPtr<nsIAsyncInputStream> mInputOverflow;
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PRIntervalTime mRtt;
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bool mKeepAlive;
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bool mKeepAliveMask;
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bool mDontReuse;
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bool mSupportsPipelining;
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bool mIsReused;
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bool mCompletedProxyConnect;
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bool mLastTransactionExpectedNoContent;
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bool mIdleMonitoring;
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bool mProxyConnectInProgress;
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// The number of <= HTTP/1.1 transactions performed on this connection. This
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// excludes spdy transactions.
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uint32_t mHttp1xTransactionCount;
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// Keep-Alive: max="mRemainingConnectionUses" provides the number of future
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// transactions (including the current one) that the server expects to allow
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// on this persistent connection.
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uint32_t mRemainingConnectionUses;
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nsAHttpTransaction::Classifier mClassification;
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// SPDY related
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bool mNPNComplete;
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bool mSetupNPNCalled;
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// version level in use, 0 if unused
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uint8_t mUsingSpdyVersion;
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nsRefPtr<mozilla::net::ASpdySession> mSpdySession;
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int32_t mPriority;
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bool mReportedSpdy;
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// mUsingSpdyVersion is cleared when mSpdySession is freed, this is permanent
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bool mEverUsedSpdy;
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};
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#endif // nsHttpConnection_h__
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