1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is Mozilla.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications.
19 : * Portions created by the Initial Developer are Copyright (C) 2001
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Darin Fisher <darin@netscape.com> (original author)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either the GNU General Public License Version 2 or later (the "GPL"), or
27 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
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32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #ifndef nsHttpPipeline_h__
40 : #define nsHttpPipeline_h__
41 :
42 : #include "nsHttp.h"
43 : #include "nsAHttpConnection.h"
44 : #include "nsAHttpTransaction.h"
45 : #include "nsIInputStream.h"
46 : #include "nsIOutputStream.h"
47 : #include "nsTArray.h"
48 : #include "nsCOMPtr.h"
49 :
50 : class nsHttpPipeline : public nsAHttpConnection
51 : , public nsAHttpTransaction
52 : , public nsAHttpSegmentReader
53 : {
54 : public:
55 : NS_DECL_ISUPPORTS
56 : NS_DECL_NSAHTTPCONNECTION
57 : NS_DECL_NSAHTTPTRANSACTION
58 : NS_DECL_NSAHTTPSEGMENTREADER
59 :
60 : nsHttpPipeline();
61 : virtual ~nsHttpPipeline();
62 :
63 : nsresult AddTransaction(nsAHttpTransaction *);
64 :
65 : private:
66 : nsresult FillSendBuf();
67 :
68 : static NS_METHOD ReadFromPipe(nsIInputStream *, void *, const char *,
69 : PRUint32, PRUint32, PRUint32 *);
70 :
71 : // convenience functions
72 0 : nsAHttpTransaction *Request(PRInt32 i)
73 : {
74 0 : if (mRequestQ.Length() == 0)
75 0 : return nsnull;
76 :
77 0 : return mRequestQ[i];
78 : }
79 0 : nsAHttpTransaction *Response(PRInt32 i)
80 : {
81 0 : if (mResponseQ.Length() == 0)
82 0 : return nsnull;
83 :
84 0 : return mResponseQ[i];
85 : }
86 :
87 : nsAHttpConnection *mConnection;
88 : nsTArray<nsAHttpTransaction*> mRequestQ; // array of transactions
89 : nsTArray<nsAHttpTransaction*> mResponseQ; // array of transactions
90 : nsresult mStatus;
91 :
92 : // these flags indicate whether or not the first request or response
93 : // is partial. a partial request means that Request(0) has been
94 : // partially written out to the socket. a partial response means
95 : // that Response(0) has been partially read in from the socket.
96 : bool mRequestIsPartial;
97 : bool mResponseIsPartial;
98 :
99 : // indicates whether or not the pipeline has been explicitly closed.
100 : bool mClosed;
101 :
102 : // used when calling ReadSegments/WriteSegments on a transaction.
103 : nsAHttpSegmentReader *mReader;
104 : nsAHttpSegmentWriter *mWriter;
105 :
106 : // send buffer
107 : nsCOMPtr<nsIInputStream> mSendBufIn;
108 : nsCOMPtr<nsIOutputStream> mSendBufOut;
109 :
110 : // the push back buffer. not exceeding nsIOService::gDefaultSegmentSize bytes.
111 : char *mPushBackBuf;
112 : PRUint32 mPushBackLen;
113 : PRUint32 mPushBackMax;
114 :
115 : // The number of transactions completed on this pipeline.
116 : PRUint32 mHttp1xTransactionCount;
117 :
118 : // For support of OnTransportStatus()
119 : PRUint64 mReceivingFromProgress;
120 : PRUint64 mSendingToProgress;
121 : bool mSuppressSendEvents;
122 : };
123 :
124 : #endif // nsHttpPipeline_h__
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