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/*
* Copyright 2008 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.
*/
// MacAsyncSocket is a kind of AsyncSocket. It only creates sockets
// of the TCP type, and does not (yet) support listen and accept. It works
// asynchronously, which means that users of this socket should connect to
// the various events declared in asyncsocket.h to receive notifications about
// this socket.
#ifndef WEBRTC_BASE_MACASYNCSOCKET_H__
#define WEBRTC_BASE_MACASYNCSOCKET_H__
#include <CoreFoundation/CoreFoundation.h>
#include "webrtc/base/asyncsocket.h"
#include "webrtc/base/nethelpers.h"
namespace rtc {
class MacBaseSocketServer;
class MacAsyncSocket : public AsyncSocket, public sigslot::has_slots<> {
public:
MacAsyncSocket(MacBaseSocketServer* ss, int family);
~MacAsyncSocket() override;
bool valid() const { return source_ != NULL; }
// Socket interface
SocketAddress GetLocalAddress() const override;
SocketAddress GetRemoteAddress() const override;
int Bind(const SocketAddress& addr) override;
int Connect(const SocketAddress& addr) override;
int Send(const void* buffer, size_t length) override;
int SendTo(const void* buffer,
size_t length,
const SocketAddress& addr) override;
int Recv(void* buffer, size_t length) override;
int RecvFrom(void* buffer, size_t length, SocketAddress* out_addr) override;
int Listen(int backlog) override;
MacAsyncSocket* Accept(SocketAddress* out_addr) override;
int Close() override;
int GetError() const override;
void SetError(int error) override;
ConnState GetState() const override;
int EstimateMTU(uint16_t* mtu) override;
int GetOption(Option opt, int* value) override;
int SetOption(Option opt, int value) override;
// For the MacBaseSocketServer to disable callbacks when process_io is false.
void EnableCallbacks();
void DisableCallbacks();
protected:
void OnResolveResult(SignalThread* thread);
int DoConnect(const SocketAddress& addr);
private:
// Creates an async socket from an existing bsd socket
MacAsyncSocket(MacBaseSocketServer* ss, int family, int native_socket);
// Attaches the socket to the CFRunloop and sets the wrapped bsd socket
// to async mode
void Initialize(int family);
// Translate the SocketAddress into a CFDataRef to pass to CF socket
// functions. Caller must call CFRelease on the result when done.
static CFDataRef CopyCFAddress(const SocketAddress& address);
// Callback for the underlying CFSocketRef.
static void MacAsyncSocketCallBack(CFSocketRef s,
CFSocketCallBackType callbackType,
CFDataRef address,
const void* data,
void* info);
MacBaseSocketServer* ss_;
CFSocketRef socket_;
int native_socket_;
CFRunLoopSourceRef source_;
int current_callbacks_;
bool disabled_;
int error_;
ConnState state_;
AsyncResolver* resolver_;
RTC_DISALLOW_COPY_AND_ASSIGN(MacAsyncSocket);
};
} // namespace rtc
#endif // WEBRTC_BASE_MACASYNCSOCKET_H__
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