henrike@webrtc.org | 47be73b | 2014-05-13 18:00:26 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2010 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #include "webrtc/base/socketstream.h" |
| 12 | |
| 13 | namespace rtc { |
| 14 | |
| 15 | SocketStream::SocketStream(AsyncSocket* socket) : socket_(NULL) { |
| 16 | Attach(socket); |
| 17 | } |
| 18 | |
| 19 | SocketStream::~SocketStream() { |
| 20 | delete socket_; |
| 21 | } |
| 22 | |
| 23 | void SocketStream::Attach(AsyncSocket* socket) { |
| 24 | if (socket_) |
| 25 | delete socket_; |
| 26 | socket_ = socket; |
| 27 | if (socket_) { |
| 28 | socket_->SignalConnectEvent.connect(this, &SocketStream::OnConnectEvent); |
| 29 | socket_->SignalReadEvent.connect(this, &SocketStream::OnReadEvent); |
| 30 | socket_->SignalWriteEvent.connect(this, &SocketStream::OnWriteEvent); |
| 31 | socket_->SignalCloseEvent.connect(this, &SocketStream::OnCloseEvent); |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | AsyncSocket* SocketStream::Detach() { |
| 36 | AsyncSocket* socket = socket_; |
| 37 | if (socket_) { |
| 38 | socket_->SignalConnectEvent.disconnect(this); |
| 39 | socket_->SignalReadEvent.disconnect(this); |
| 40 | socket_->SignalWriteEvent.disconnect(this); |
| 41 | socket_->SignalCloseEvent.disconnect(this); |
| 42 | socket_ = NULL; |
| 43 | } |
| 44 | return socket; |
| 45 | } |
| 46 | |
| 47 | StreamState SocketStream::GetState() const { |
| 48 | ASSERT(socket_ != NULL); |
| 49 | switch (socket_->GetState()) { |
| 50 | case Socket::CS_CONNECTED: |
| 51 | return SS_OPEN; |
| 52 | case Socket::CS_CONNECTING: |
| 53 | return SS_OPENING; |
| 54 | case Socket::CS_CLOSED: |
| 55 | default: |
| 56 | return SS_CLOSED; |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | StreamResult SocketStream::Read(void* buffer, size_t buffer_len, |
| 61 | size_t* read, int* error) { |
| 62 | ASSERT(socket_ != NULL); |
| 63 | int result = socket_->Recv(buffer, buffer_len); |
| 64 | if (result < 0) { |
| 65 | if (socket_->IsBlocking()) |
| 66 | return SR_BLOCK; |
| 67 | if (error) |
| 68 | *error = socket_->GetError(); |
| 69 | return SR_ERROR; |
| 70 | } |
| 71 | if ((result > 0) || (buffer_len == 0)) { |
| 72 | if (read) |
| 73 | *read = result; |
| 74 | return SR_SUCCESS; |
| 75 | } |
| 76 | return SR_EOS; |
| 77 | } |
| 78 | |
| 79 | StreamResult SocketStream::Write(const void* data, size_t data_len, |
| 80 | size_t* written, int* error) { |
| 81 | ASSERT(socket_ != NULL); |
| 82 | int result = socket_->Send(data, data_len); |
| 83 | if (result < 0) { |
| 84 | if (socket_->IsBlocking()) |
| 85 | return SR_BLOCK; |
| 86 | if (error) |
| 87 | *error = socket_->GetError(); |
| 88 | return SR_ERROR; |
| 89 | } |
| 90 | if (written) |
| 91 | *written = result; |
| 92 | return SR_SUCCESS; |
| 93 | } |
| 94 | |
| 95 | void SocketStream::Close() { |
| 96 | ASSERT(socket_ != NULL); |
| 97 | socket_->Close(); |
| 98 | } |
| 99 | |
| 100 | void SocketStream::OnConnectEvent(AsyncSocket* socket) { |
| 101 | ASSERT(socket == socket_); |
| 102 | SignalEvent(this, SE_OPEN | SE_READ | SE_WRITE, 0); |
| 103 | } |
| 104 | |
| 105 | void SocketStream::OnReadEvent(AsyncSocket* socket) { |
| 106 | ASSERT(socket == socket_); |
| 107 | SignalEvent(this, SE_READ, 0); |
| 108 | } |
| 109 | |
| 110 | void SocketStream::OnWriteEvent(AsyncSocket* socket) { |
| 111 | ASSERT(socket == socket_); |
| 112 | SignalEvent(this, SE_WRITE, 0); |
| 113 | } |
| 114 | |
| 115 | void SocketStream::OnCloseEvent(AsyncSocket* socket, int err) { |
| 116 | ASSERT(socket == socket_); |
| 117 | SignalEvent(this, SE_CLOSE, err); |
| 118 | } |
| 119 | |
| 120 | |
| 121 | } // namespace rtc |