diff options
Diffstat (limited to 'third_party/libjingle/files/talk/base/socketstream.h')
| -rw-r--r-- | third_party/libjingle/files/talk/base/socketstream.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/third_party/libjingle/files/talk/base/socketstream.h b/third_party/libjingle/files/talk/base/socketstream.h new file mode 100644 index 0000000..4d56b75 --- /dev/null +++ b/third_party/libjingle/files/talk/base/socketstream.h @@ -0,0 +1,153 @@ +/* + * libjingle + * Copyright 2004--2006, Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef TALK_BASE_SOCKET_STREAM_H__ +#define TALK_BASE_SOCKET_STREAM_H__ + +#include "talk/base/asyncsocket.h" +#include "talk/base/common.h" +#include "talk/base/stream.h" + +namespace talk_base { + +/////////////////////////////////////////////////////////////////////////////// + +class SocketStream : public StreamInterface, public sigslot::has_slots<> { + public: + SocketStream(AsyncSocket* socket) : socket_(NULL) { + Attach(socket); + } + virtual ~SocketStream() { delete socket_; } + + void Attach(AsyncSocket* socket) { + if (socket_) + delete socket_; + socket_ = socket; + if (socket_) { + socket_->SignalConnectEvent.connect(this, &SocketStream::OnConnectEvent); + socket_->SignalReadEvent.connect(this, &SocketStream::OnReadEvent); + socket_->SignalWriteEvent.connect(this, &SocketStream::OnWriteEvent); + socket_->SignalCloseEvent.connect(this, &SocketStream::OnCloseEvent); + } + } + + AsyncSocket* Detach() { + AsyncSocket* socket = socket_; + if (socket_) { + socket_->SignalConnectEvent.disconnect(this); + socket_->SignalReadEvent.disconnect(this); + socket_->SignalWriteEvent.disconnect(this); + socket_->SignalCloseEvent.disconnect(this); + socket_ = NULL; + } + return socket; + } + + AsyncSocket* GetSocket() { return socket_; } + + virtual StreamState GetState() const { + ASSERT(socket_ != NULL); + switch (socket_->GetState()) { + case Socket::CS_CONNECTED: + return SS_OPEN; + case Socket::CS_CONNECTING: + return SS_OPENING; + case Socket::CS_CLOSED: + default: + return SS_CLOSED; + } + } + + virtual StreamResult Read(void* buffer, size_t buffer_len, + size_t* read, int* error) { + ASSERT(socket_ != NULL); + int result = socket_->Recv(buffer, buffer_len); + if (result < 0) { + if (socket_->IsBlocking()) + return SR_BLOCK; + if (error) + *error = socket_->GetError(); + return SR_ERROR; + } + if ((result > 0) || (buffer_len == 0)) { + if (read) + *read = result; + return SR_SUCCESS; + } + return SR_EOS; + } + + virtual StreamResult Write(const void* data, size_t data_len, + size_t* written, int* error) { + ASSERT(socket_ != NULL); + int result = socket_->Send(data, data_len); + if (result < 0) { + if (socket_->IsBlocking()) + return SR_BLOCK; + if (error) + *error = socket_->GetError(); + return SR_ERROR; + } + if (written) + *written = result; + return SR_SUCCESS; + } + + virtual void Close() { ASSERT(socket_ != NULL); socket_->Close(); } + + virtual bool GetSize(size_t* size) const { return false; } + virtual bool ReserveSize(size_t size) { return true; } + virtual bool Rewind() { return false; } + + private: + void OnConnectEvent(AsyncSocket* socket) { + ASSERT(socket == socket_); + SignalEvent(this, SE_OPEN | SE_READ | SE_WRITE, 0); + } + void OnReadEvent(AsyncSocket* socket) { + ASSERT(socket == socket_); + SignalEvent(this, SE_READ, 0); + } + void OnWriteEvent(AsyncSocket* socket) { + ASSERT(socket == socket_); + SignalEvent(this, SE_WRITE, 0); + } + void OnCloseEvent(AsyncSocket* socket, int err) { + ASSERT(socket == socket_); + SignalEvent(this, SE_CLOSE, err); + } + + AsyncSocket* socket_; + + DISALLOW_EVIL_CONSTRUCTORS(SocketStream); +}; + +/////////////////////////////////////////////////////////////////////////////// + +} // namespace talk_base + +#endif // TALK_BASE_SOCKET_STREAM_H__ |