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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "remoting/protocol/message_reader.h" | 5 #include "remoting/protocol/message_reader.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/callback.h" | 8 #include "base/callback.h" |
| 9 #include "base/location.h" | 9 #include "base/location.h" |
| 10 #include "net/base/io_buffer.h" | 10 #include "net/base/io_buffer.h" |
| 11 #include "net/base/net_errors.h" | 11 #include "net/base/net_errors.h" |
| 12 #include "net/socket/socket.h" | 12 #include "net/socket/socket.h" |
| 13 #include "remoting/base/compound_buffer.h" | 13 #include "remoting/base/compound_buffer.h" |
| 14 #include "remoting/proto/internal.pb.h" | 14 #include "remoting/proto/internal.pb.h" |
| 15 | 15 |
| 16 namespace remoting { | 16 namespace remoting { |
| 17 namespace protocol { | 17 namespace protocol { |
| 18 | 18 |
| 19 static const int kReadBufferSize = 4096; | 19 static const int kReadBufferSize = 4096; |
| 20 | 20 |
| 21 MessageReader::MessageReader() | 21 MessageReader::MessageReader() |
| 22 : socket_(NULL), | 22 : socket_(NULL), |
| 23 read_pending_(false), | 23 read_pending_(false), |
| 24 pending_messages_(0), | 24 pending_messages_(0), |
| 25 closed_(false), | 25 closed_(false) { |
| 26 ALLOW_THIS_IN_INITIALIZER_LIST( | |
| 27 read_callback_(this, &MessageReader::OnRead)) { | |
| 28 } | 26 } |
| 29 | 27 |
| 30 MessageReader::~MessageReader() { | 28 MessageReader::~MessageReader() { |
| 31 CHECK_EQ(pending_messages_, 0); | 29 CHECK_EQ(pending_messages_, 0); |
| 32 } | 30 } |
| 33 | 31 |
| 34 void MessageReader::Init(net::Socket* socket, | 32 void MessageReader::Init(net::Socket* socket, |
| 35 const MessageReceivedCallback& callback) { | 33 const MessageReceivedCallback& callback) { |
| 36 message_received_callback_ = callback; | 34 message_received_callback_ = callback; |
| 37 DCHECK(socket); | 35 DCHECK(socket); |
| 38 socket_ = socket; | 36 socket_ = socket; |
| 39 DoRead(); | 37 DoRead(); |
| 40 } | 38 } |
| 41 | 39 |
| 42 void MessageReader::DoRead() { | 40 void MessageReader::DoRead() { |
| 43 // Don't try to read again if there is another read pending or we | 41 // Don't try to read again if there is another read pending or we |
| 44 // have messages that we haven't finished processing yet. | 42 // have messages that we haven't finished processing yet. |
| 45 while (!closed_ && !read_pending_ && pending_messages_ == 0) { | 43 while (!closed_ && !read_pending_ && pending_messages_ == 0) { |
| 46 read_buffer_ = new net::IOBuffer(kReadBufferSize); | 44 read_buffer_ = new net::IOBuffer(kReadBufferSize); |
| 47 int result = socket_->Read( | 45 int result = socket_->Read( |
| 48 read_buffer_, kReadBufferSize, &read_callback_); | 46 read_buffer_, kReadBufferSize, base::Bind(&MessageReader::OnRead, |
| 47 base::Unretained(this))); |
| 49 HandleReadResult(result); | 48 HandleReadResult(result); |
| 50 } | 49 } |
| 51 } | 50 } |
| 52 | 51 |
| 53 void MessageReader::OnRead(int result) { | 52 void MessageReader::OnRead(int result) { |
| 54 DCHECK(read_pending_); | 53 DCHECK(read_pending_); |
| 55 read_pending_ = false; | 54 read_pending_ = false; |
| 56 | 55 |
| 57 if (!closed_) { | 56 if (!closed_) { |
| 58 HandleReadResult(result); | 57 HandleReadResult(result); |
| (...skipping 58 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 117 | 116 |
| 118 void MessageReader::ProcessDoneEvent() { | 117 void MessageReader::ProcessDoneEvent() { |
| 119 pending_messages_--; | 118 pending_messages_--; |
| 120 DCHECK_GE(pending_messages_, 0); | 119 DCHECK_GE(pending_messages_, 0); |
| 121 | 120 |
| 122 DoRead(); // Start next read if neccessary. | 121 DoRead(); // Start next read if neccessary. |
| 123 } | 122 } |
| 124 | 123 |
| 125 } // namespace protocol | 124 } // namespace protocol |
| 126 } // namespace remoting | 125 } // namespace remoting |
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