gecko/netwerk/protocol/http/nsHttpPipeline.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla.
*
* The Initial Developer of the Original Code is
* Netscape Communications.
* Portions created by the Initial Developer are Copyright (C) 2001
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@netscape.com> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsHttpPipeline_h__
#define nsHttpPipeline_h__
#include "nsHttp.h"
#include "nsAHttpConnection.h"
#include "nsAHttpTransaction.h"
#include "nsIInputStream.h"
#include "nsIOutputStream.h"
#include "nsTArray.h"
#include "nsCOMPtr.h"
class nsHttpPipeline : public nsAHttpConnection
, public nsAHttpTransaction
, public nsAHttpSegmentReader
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSAHTTPCONNECTION
NS_DECL_NSAHTTPTRANSACTION
NS_DECL_NSAHTTPSEGMENTREADER
nsHttpPipeline();
virtual ~nsHttpPipeline();
nsresult AddTransaction(nsAHttpTransaction *);
private:
nsresult FillSendBuf();
static NS_METHOD ReadFromPipe(nsIInputStream *, void *, const char *,
PRUint32, PRUint32, PRUint32 *);
// convenience functions
nsAHttpTransaction *Request(PRInt32 i)
{
if (mRequestQ.Length() == 0)
return nsnull;
return mRequestQ[i];
}
nsAHttpTransaction *Response(PRInt32 i)
{
if (mResponseQ.Length() == 0)
return nsnull;
return mResponseQ[i];
}
nsAHttpConnection *mConnection;
nsTArray<nsAHttpTransaction*> mRequestQ; // array of transactions
nsTArray<nsAHttpTransaction*> mResponseQ; // array of transactions
nsresult mStatus;
// these flags indicate whether or not the first request or response
// is partial. a partial request means that Request(0) has been
// partially written out to the socket. a partial response means
// that Response(0) has been partially read in from the socket.
PRPackedBool mRequestIsPartial;
PRPackedBool mResponseIsPartial;
// indicates whether or not the pipeline has been explicitly closed.
PRPackedBool mClosed;
// used when calling ReadSegments/WriteSegments on a transaction.
nsAHttpSegmentReader *mReader;
nsAHttpSegmentWriter *mWriter;
// send buffer
nsCOMPtr<nsIInputStream> mSendBufIn;
nsCOMPtr<nsIOutputStream> mSendBufOut;
// the push back buffer. not exceeding nsIOService::gDefaultSegmentSize bytes.
char *mPushBackBuf;
PRUint32 mPushBackLen;
PRUint32 mPushBackMax;
};
#endif // nsHttpPipeline_h__