28e2075280
trunk/talk git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
139 lines
4.1 KiB
C++
139 lines
4.1 KiB
C++
/*
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* libjingle
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* Copyright 2010, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "talk/base/socketstream.h"
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namespace talk_base {
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SocketStream::SocketStream(AsyncSocket* socket) : socket_(NULL) {
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Attach(socket);
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}
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SocketStream::~SocketStream() {
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delete socket_;
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}
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void SocketStream::Attach(AsyncSocket* socket) {
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if (socket_)
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delete socket_;
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socket_ = socket;
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if (socket_) {
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socket_->SignalConnectEvent.connect(this, &SocketStream::OnConnectEvent);
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socket_->SignalReadEvent.connect(this, &SocketStream::OnReadEvent);
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socket_->SignalWriteEvent.connect(this, &SocketStream::OnWriteEvent);
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socket_->SignalCloseEvent.connect(this, &SocketStream::OnCloseEvent);
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}
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}
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AsyncSocket* SocketStream::Detach() {
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AsyncSocket* socket = socket_;
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if (socket_) {
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socket_->SignalConnectEvent.disconnect(this);
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socket_->SignalReadEvent.disconnect(this);
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socket_->SignalWriteEvent.disconnect(this);
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socket_->SignalCloseEvent.disconnect(this);
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socket_ = NULL;
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}
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return socket;
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}
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StreamState SocketStream::GetState() const {
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ASSERT(socket_ != NULL);
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switch (socket_->GetState()) {
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case Socket::CS_CONNECTED:
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return SS_OPEN;
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case Socket::CS_CONNECTING:
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return SS_OPENING;
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case Socket::CS_CLOSED:
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default:
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return SS_CLOSED;
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}
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}
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StreamResult SocketStream::Read(void* buffer, size_t buffer_len,
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size_t* read, int* error) {
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ASSERT(socket_ != NULL);
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int result = socket_->Recv(buffer, buffer_len);
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if (result < 0) {
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if (socket_->IsBlocking())
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return SR_BLOCK;
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if (error)
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*error = socket_->GetError();
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return SR_ERROR;
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}
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if ((result > 0) || (buffer_len == 0)) {
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if (read)
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*read = result;
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return SR_SUCCESS;
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}
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return SR_EOS;
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}
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StreamResult SocketStream::Write(const void* data, size_t data_len,
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size_t* written, int* error) {
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ASSERT(socket_ != NULL);
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int result = socket_->Send(data, data_len);
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if (result < 0) {
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if (socket_->IsBlocking())
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return SR_BLOCK;
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if (error)
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*error = socket_->GetError();
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return SR_ERROR;
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}
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if (written)
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*written = result;
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return SR_SUCCESS;
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}
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void SocketStream::Close() {
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ASSERT(socket_ != NULL);
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socket_->Close();
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}
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void SocketStream::OnConnectEvent(AsyncSocket* socket) {
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ASSERT(socket == socket_);
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SignalEvent(this, SE_OPEN | SE_READ | SE_WRITE, 0);
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}
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void SocketStream::OnReadEvent(AsyncSocket* socket) {
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ASSERT(socket == socket_);
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SignalEvent(this, SE_READ, 0);
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}
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void SocketStream::OnWriteEvent(AsyncSocket* socket) {
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ASSERT(socket == socket_);
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SignalEvent(this, SE_WRITE, 0);
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}
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void SocketStream::OnCloseEvent(AsyncSocket* socket, int err) {
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ASSERT(socket == socket_);
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SignalEvent(this, SE_CLOSE, err);
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}
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} // namespace talk_base
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