88 lines
3.2 KiB
C
88 lines
3.2 KiB
C
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/*
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* libjingle
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* Copyright 2004--2005, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _ASYNCSOCKET_H_
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#define _ASYNCSOCKET_H_
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#include "talk/base/sigslot.h"
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namespace talk_base {
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class SocketAddress;
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}
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namespace buzz {
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class AsyncSocket {
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public:
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enum State {
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STATE_CLOSED = 0, //!< Socket is not open.
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STATE_CLOSING, //!< Socket is closing but can have buffered data
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STATE_CONNECTING, //!< In the process of
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STATE_OPEN, //!< Socket is connected
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#if defined(FEATURE_ENABLE_SSL)
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STATE_TLS_CONNECTING, //!< Establishing TLS connection
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STATE_TLS_OPEN, //!< TLS connected
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#endif
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};
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enum Error {
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ERROR_NONE = 0, //!< No error
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ERROR_WINSOCK, //!< Winsock error
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ERROR_DNS, //!< Couldn't resolve host name
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ERROR_WRONGSTATE, //!< Call made while socket is in the wrong state
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#if defined(FEATURE_ENABLE_SSL)
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ERROR_SSL, //!< Something went wrong with OpenSSL
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#endif
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};
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virtual ~AsyncSocket() {}
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virtual State state() = 0;
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virtual Error error() = 0;
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virtual int GetError() = 0; // winsock error code
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virtual bool Connect(const talk_base::SocketAddress& addr) = 0;
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virtual bool Read(char * data, size_t len, size_t* len_read) = 0;
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virtual bool Write(const char * data, size_t len) = 0;
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virtual bool Close() = 0;
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#if defined(FEATURE_ENABLE_SSL)
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// We allow matching any passed domain. This allows us to avoid
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// handling the valuable certificates for logins into proxies. If
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// both names are passed as empty, we do not require a match.
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virtual bool StartTls(const std::string & domainname) = 0;
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#endif
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sigslot::signal0<> SignalConnected;
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sigslot::signal0<> SignalSSLConnected;
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sigslot::signal0<> SignalClosed;
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sigslot::signal0<> SignalRead;
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sigslot::signal0<> SignalError;
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};
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}
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#endif
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