blob: 7284506dd3651da4410da91aaf3a9dbc5b1cf613 [file] [log] [blame]
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include "webrtc/rtc_base/sigslot.h"
#include "webrtc/rtc_base/socket.h"
namespace rtc {
// TODO: Remove Socket and rename AsyncSocket to Socket.
// Provides the ability to perform socket I/O asynchronously.
class AsyncSocket : public Socket {
~AsyncSocket() override;
AsyncSocket* Accept(SocketAddress* paddr) override = 0;
// SignalReadEvent and SignalWriteEvent use multi_threaded_local to allow
// access concurrently from different thread.
// For example SignalReadEvent::connect will be called in AsyncUDPSocket ctor
// but at the same time the SocketDispatcher maybe signaling the read event.
// ready to read
sigslot::multi_threaded_local> SignalReadEvent;
// ready to write
sigslot::multi_threaded_local> SignalWriteEvent;
sigslot::signal1<AsyncSocket*> SignalConnectEvent; // connected
sigslot::signal2<AsyncSocket*, int> SignalCloseEvent; // closed
class AsyncSocketAdapter : public AsyncSocket, public sigslot::has_slots<> {
// The adapted socket may explicitly be null, and later assigned using Attach.
// However, subclasses which support detached mode must override any methods
// that will be called during the detached period (usually GetState()), to
// avoid dereferencing a null pointer.
explicit AsyncSocketAdapter(AsyncSocket* socket);
~AsyncSocketAdapter() override;
void Attach(AsyncSocket* socket);
SocketAddress GetLocalAddress() const override;
SocketAddress GetRemoteAddress() const override;
int Bind(const SocketAddress& addr) override;
int Connect(const SocketAddress& addr) override;
int Send(const void* pv, size_t cb) override;
int SendTo(const void* pv, size_t cb, const SocketAddress& addr) override;
int Recv(void* pv, size_t cb, int64_t* timestamp) override;
int RecvFrom(void* pv,
size_t cb,
SocketAddress* paddr,
int64_t* timestamp) override;
int Listen(int backlog) override;
AsyncSocket* Accept(SocketAddress* paddr) override;
int Close() override;
int GetError() const override;
void SetError(int error) override;
ConnState GetState() const override;
int GetOption(Option opt, int* value) override;
int SetOption(Option opt, int value) override;
virtual void OnConnectEvent(AsyncSocket* socket);
virtual void OnReadEvent(AsyncSocket* socket);
virtual void OnWriteEvent(AsyncSocket* socket);
virtual void OnCloseEvent(AsyncSocket* socket, int err);
AsyncSocket* socket_;
} // namespace rtc