137 lines
4.2 KiB
C
137 lines
4.2 KiB
C
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/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef RTC_BASE_SOCKET_H_
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#define RTC_BASE_SOCKET_H_
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#include <errno.h>
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#if defined(WEBRTC_POSIX)
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#define SOCKET_EACCES EACCES
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#endif
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#if defined(WEBRTC_WIN)
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#include "rtc_base/win32.h"
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#endif
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#include "rtc_base/constructor_magic.h"
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#include "rtc_base/socket_address.h"
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// Rather than converting errors into a private namespace,
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// Reuse the POSIX socket api errors. Note this depends on
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// Win32 compatibility.
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#if defined(WEBRTC_WIN)
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#undef EWOULDBLOCK // Remove errno.h's definition for each macro below.
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#define EWOULDBLOCK WSAEWOULDBLOCK
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#undef EINPROGRESS
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#define EINPROGRESS WSAEINPROGRESS
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#undef EALREADY
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#define EALREADY WSAEALREADY
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#undef EMSGSIZE
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#define EMSGSIZE WSAEMSGSIZE
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#undef EADDRINUSE
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#define EADDRINUSE WSAEADDRINUSE
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#undef EADDRNOTAVAIL
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#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
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#undef ENETDOWN
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#define ENETDOWN WSAENETDOWN
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#undef ECONNABORTED
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#define ECONNABORTED WSAECONNABORTED
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#undef ENOBUFS
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#define ENOBUFS WSAENOBUFS
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#undef EISCONN
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#define EISCONN WSAEISCONN
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#undef ENOTCONN
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#define ENOTCONN WSAENOTCONN
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#undef ECONNREFUSED
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#define ECONNREFUSED WSAECONNREFUSED
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#undef EHOSTUNREACH
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#define EHOSTUNREACH WSAEHOSTUNREACH
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#undef ENETUNREACH
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#define ENETUNREACH WSAENETUNREACH
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#define SOCKET_EACCES WSAEACCES
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#endif // WEBRTC_WIN
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#if defined(WEBRTC_POSIX)
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#define INVALID_SOCKET (-1)
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#define SOCKET_ERROR (-1)
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#define closesocket(s) close(s)
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#endif // WEBRTC_POSIX
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namespace rtc {
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inline bool IsBlockingError(int e) {
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return (e == EWOULDBLOCK) || (e == EAGAIN) || (e == EINPROGRESS);
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}
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// General interface for the socket implementations of various networks. The
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// methods match those of normal UNIX sockets very closely.
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class Socket {
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public:
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virtual ~Socket() {}
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// Returns the address to which the socket is bound. If the socket is not
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// bound, then the any-address is returned.
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virtual SocketAddress GetLocalAddress() const = 0;
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// Returns the address to which the socket is connected. If the socket is
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// not connected, then the any-address is returned.
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virtual SocketAddress GetRemoteAddress() const = 0;
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virtual int Bind(const SocketAddress& addr) = 0;
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virtual int Connect(const SocketAddress& addr) = 0;
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virtual int Send(const void* pv, size_t cb) = 0;
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virtual int SendTo(const void* pv, size_t cb, const SocketAddress& addr) = 0;
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// |timestamp| is in units of microseconds.
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virtual int Recv(void* pv, size_t cb, int64_t* timestamp) = 0;
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virtual int RecvFrom(void* pv,
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size_t cb,
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SocketAddress* paddr,
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int64_t* timestamp) = 0;
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virtual int Listen(int backlog) = 0;
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virtual Socket* Accept(SocketAddress* paddr) = 0;
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virtual int Close() = 0;
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virtual int GetError() const = 0;
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virtual void SetError(int error) = 0;
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inline bool IsBlocking() const { return IsBlockingError(GetError()); }
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enum ConnState { CS_CLOSED, CS_CONNECTING, CS_CONNECTED };
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virtual ConnState GetState() const = 0;
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enum Option {
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OPT_DONTFRAGMENT,
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OPT_RCVBUF, // receive buffer size
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OPT_SNDBUF, // send buffer size
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OPT_NODELAY, // whether Nagle algorithm is enabled
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OPT_IPV6_V6ONLY, // Whether the socket is IPv6 only.
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OPT_DSCP, // DSCP code
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OPT_RTP_SENDTIME_EXTN_ID, // This is a non-traditional socket option param.
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// This is specific to libjingle and will be used
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// if SendTime option is needed at socket level.
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};
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virtual int GetOption(Option opt, int* value) = 0;
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virtual int SetOption(Option opt, int value) = 0;
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protected:
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Socket() {}
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private:
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RTC_DISALLOW_COPY_AND_ASSIGN(Socket);
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};
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} // namespace rtc
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#endif // RTC_BASE_SOCKET_H_
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