1 /* 2 * libjingle 3 * Copyright 2004--2005, Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef TALK_XMPP_ASYNCSOCKET_H_ 29 #define TALK_XMPP_ASYNCSOCKET_H_ 30 31 #include <string> 32 33 #include "webrtc/base/sigslot.h" 34 35 namespace rtc { 36 class SocketAddress; 37 } 38 39 namespace buzz { 40 41 class AsyncSocket { 42 public: 43 enum State { 44 STATE_CLOSED = 0, //!< Socket is not open. 45 STATE_CLOSING, //!< Socket is closing but can have buffered data 46 STATE_CONNECTING, //!< In the process of 47 STATE_OPEN, //!< Socket is connected 48 #if defined(FEATURE_ENABLE_SSL) 49 STATE_TLS_CONNECTING, //!< Establishing TLS connection 50 STATE_TLS_OPEN, //!< TLS connected 51 #endif 52 }; 53 54 enum Error { 55 ERROR_NONE = 0, //!< No error 56 ERROR_WINSOCK, //!< Winsock error 57 ERROR_DNS, //!< Couldn't resolve host name 58 ERROR_WRONGSTATE, //!< Call made while socket is in the wrong state 59 #if defined(FEATURE_ENABLE_SSL) 60 ERROR_SSL, //!< Something went wrong with OpenSSL 61 #endif 62 }; 63 ~AsyncSocket()64 virtual ~AsyncSocket() {} 65 virtual State state() = 0; 66 virtual Error error() = 0; 67 virtual int GetError() = 0; // winsock error code 68 69 virtual bool Connect(const rtc::SocketAddress& addr) = 0; 70 virtual bool Read(char * data, size_t len, size_t* len_read) = 0; 71 virtual bool Write(const char * data, size_t len) = 0; 72 virtual bool Close() = 0; 73 #if defined(FEATURE_ENABLE_SSL) 74 // We allow matching any passed domain. This allows us to avoid 75 // handling the valuable certificates for logins into proxies. If 76 // both names are passed as empty, we do not require a match. 77 virtual bool StartTls(const std::string & domainname) = 0; 78 #endif 79 80 sigslot::signal0<> SignalConnected; 81 sigslot::signal0<> SignalSSLConnected; 82 sigslot::signal0<> SignalClosed; 83 sigslot::signal0<> SignalRead; 84 sigslot::signal0<> SignalError; 85 }; 86 87 } 88 89 #endif // TALK_XMPP_ASYNCSOCKET_H_ 90