X-Git-Url: http://developer.intra2net.com/git/?p=libt2n;a=blobdiff_plain;f=src%2Fsocket_wrapper.hxx;h=cf1d3850cb74a141199402840cd90c693cedb5dd;hp=da972a2d01c57d01553522594728ea32697de12b;hb=44b4600fd51677e54dd167734ca9252b58237cda;hpb=fb3345ada7ea94225b78994fd50e3de693a2a3d5 diff --git a/src/socket_wrapper.hxx b/src/socket_wrapper.hxx index da972a2..cf1d385 100644 --- a/src/socket_wrapper.hxx +++ b/src/socket_wrapper.hxx @@ -1,21 +1,24 @@ -/*************************************************************************** - * Copyright (C) 2008 by Gerd v. Egidy * - * gve@intra2net.com * - * * - * This library is free software; you can redistribute it and/or modify * - * it under the terms of the GNU Lesser General Public License version * - * 2.1 as published by the Free Software Foundation. * - * * - * This library is distributed in the hope that it will be useful, * - * but WITHOUT ANY WARRANTY; without even the implied warranty of * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * - * GNU Lesser General Public License for more details. * - * * - * You should have received a copy of the GNU Lesser General Public * - * License along with this program; if not, write to the * - * Free Software Foundation, Inc., * - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * - ***************************************************************************/ +/* +Copyright (C) 2006 by Intra2net AG - Gerd v. Egidy + +The software in this package is distributed under the GNU General +Public License version 2 (with a special exception described below). + +A copy of GNU General Public License (GPL) is included in this distribution, +in the file COPYING.GPL. + +As a special exception, if other files instantiate templates or use macros +or inline functions from this file, or you compile this file and link it +with other works to produce a work based on this file, this file +does not by itself cause the resulting work to be covered +by the GNU General Public License. + +However the source code for this file must still be made available +in accordance with section (3) of the GNU General Public License. + +This exception does not invalidate any other reasons why a work based +on this file might be covered by the GNU General Public License. +*/ #ifndef __LIBT2N_SOCKET_WRAPPER #define __LIBT2N_SOCKET_WRAPPER @@ -32,6 +35,12 @@ namespace libt2n { +/** @brief a basic implementation of ConnectionWrapper + + This is a basic version of a ConnectionWrapper which does not do any fancy + error handling or anything, it justs executes the regular calls. Use this + wrapper if you only want to use the singleton-feature of T2nSingletonWrapper. +*/ class BasicSocketWrapper : public ConnectionWrapper { protected: @@ -46,27 +55,44 @@ class BasicSocketWrapper : public ConnectionWrapper std::auto_ptr c; + // TODO: Mark object as non-copyable as it contains an auto_ptr. + // This will make sure nobody every tries to put this in a STL container + public: BasicSocketWrapper(int _port, const std::string& _server="127.0.0.1", long long _connect_timeout_usec=socket_client_connection::connect_timeout_usec_default, int _max_retries=socket_client_connection::max_retries_default) - : port(_port), server(_server), connect_timeout_usec(_connect_timeout_usec), - max_retries(_max_retries), socket_type(tcp_s), ConnectionWrapper() + : ConnectionWrapper(), + socket_type(tcp_s), + server(_server), + port(_port), + connect_timeout_usec(_connect_timeout_usec), + max_retries(_max_retries) { } BasicSocketWrapper(const std::string& _path, long long _connect_timeout_usec=socket_client_connection::connect_timeout_usec_default, int _max_retries=socket_client_connection::max_retries_default) - : path(_path), connect_timeout_usec(_connect_timeout_usec), - max_retries(_max_retries), socket_type(unix_s), ConnectionWrapper() + : ConnectionWrapper(), + socket_type(unix_s), + path(_path), + connect_timeout_usec(_connect_timeout_usec), + max_retries(_max_retries) { } client_connection* get_connection(void); bool connection_established(void) { return (c.get() != NULL); } + + void set_logging(std::ostream *_logstream, log_level_values _log_level); }; +/** @brief a wrapper implementing reconnect-then-throw + + This ConnectionWrapper tries to reconnect to the server if something with the connection + goes wrong. If even reconnecting max_retries times does not help, an exception is thrown. +*/ class ReconnectSocketWrapper : public BasicSocketWrapper { public: @@ -85,6 +111,7 @@ class ReconnectSocketWrapper : public BasicSocketWrapper bool handle(command_client* stubBase, boost::function< void() > f); }; +/// a placeholder-client_connection which is closed all the time class dummy_client_connection : public client_connection { private: @@ -100,6 +127,12 @@ class dummy_client_connection : public client_connection { return false; } }; +/** @brief a wrapper implementing reconnect-then-ignore + + This ConnectionWrapper tries to reconnect to the server if something with the connection + goes wrong. If even reconnecting max_retries times does not help, the complete t2n-call is + ignored. The return value of the call will be created with the default constructor. +*/ class ReconnectIgnoreFailureSocketWrapper : public ReconnectSocketWrapper { private: