You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
3.1 KiB
87 lines
3.1 KiB
/*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef RTC_BASE_ASYNC_SOCKET_H_
|
|
#define RTC_BASE_ASYNC_SOCKET_H_
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include "rtc_base/socket.h"
|
|
#include "rtc_base/socket_address.h"
|
|
#include "rtc_base/third_party/sigslot/sigslot.h"
|
|
|
|
namespace rtc {
|
|
|
|
// TODO: Remove Socket and rename AsyncSocket to Socket.
|
|
|
|
// Provides the ability to perform socket I/O asynchronously.
|
|
class AsyncSocket : public Socket {
|
|
public:
|
|
AsyncSocket();
|
|
~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::signal1<AsyncSocket*, sigslot::multi_threaded_local> SignalReadEvent;
|
|
// ready to write
|
|
sigslot::signal1<AsyncSocket*, sigslot::multi_threaded_local>
|
|
SignalWriteEvent;
|
|
sigslot::signal1<AsyncSocket*> SignalConnectEvent; // connected
|
|
sigslot::signal2<AsyncSocket*, int> SignalCloseEvent; // closed
|
|
};
|
|
|
|
class AsyncSocketAdapter : public AsyncSocket, public sigslot::has_slots<> {
|
|
public:
|
|
// 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;
|
|
|
|
protected:
|
|
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
|
|
|
|
#endif // RTC_BASE_ASYNC_SOCKET_H_
|