3 * Copyright 2010, Google Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include "talk/base/socketstream.h"
32 SocketStream::SocketStream(AsyncSocket* socket) : socket_(NULL) {
36 SocketStream::~SocketStream() {
40 void SocketStream::Attach(AsyncSocket* socket) {
45 socket_->SignalConnectEvent.connect(this, &SocketStream::OnConnectEvent);
46 socket_->SignalReadEvent.connect(this, &SocketStream::OnReadEvent);
47 socket_->SignalWriteEvent.connect(this, &SocketStream::OnWriteEvent);
48 socket_->SignalCloseEvent.connect(this, &SocketStream::OnCloseEvent);
52 AsyncSocket* SocketStream::Detach() {
53 AsyncSocket* socket = socket_;
55 socket_->SignalConnectEvent.disconnect(this);
56 socket_->SignalReadEvent.disconnect(this);
57 socket_->SignalWriteEvent.disconnect(this);
58 socket_->SignalCloseEvent.disconnect(this);
64 StreamState SocketStream::GetState() const {
65 ASSERT(socket_ != NULL);
66 switch (socket_->GetState()) {
67 case Socket::CS_CONNECTED:
69 case Socket::CS_CONNECTING:
71 case Socket::CS_CLOSED:
77 StreamResult SocketStream::Read(void* buffer, size_t buffer_len,
78 size_t* read, int* error) {
79 ASSERT(socket_ != NULL);
80 int result = socket_->Recv(buffer, buffer_len);
82 if (socket_->IsBlocking())
85 *error = socket_->GetError();
88 if ((result > 0) || (buffer_len == 0)) {
96 StreamResult SocketStream::Write(const void* data, size_t data_len,
97 size_t* written, int* error) {
98 ASSERT(socket_ != NULL);
99 int result = socket_->Send(data, data_len);
101 if (socket_->IsBlocking())
104 *error = socket_->GetError();
112 void SocketStream::Close() {
113 ASSERT(socket_ != NULL);
117 void SocketStream::OnConnectEvent(AsyncSocket* socket) {
118 ASSERT(socket == socket_);
119 SignalEvent(this, SE_OPEN | SE_READ | SE_WRITE, 0);
122 void SocketStream::OnReadEvent(AsyncSocket* socket) {
123 ASSERT(socket == socket_);
124 SignalEvent(this, SE_READ, 0);
127 void SocketStream::OnWriteEvent(AsyncSocket* socket) {
128 ASSERT(socket == socket_);
129 SignalEvent(this, SE_WRITE, 0);
132 void SocketStream::OnCloseEvent(AsyncSocket* socket, int err) {
133 ASSERT(socket == socket_);
134 SignalEvent(this, SE_CLOSE, err);
138 } // namespace talk_base