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311 lines
10 KiB
C++
311 lines
10 KiB
C++
// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
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// All rights reserved.
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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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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the Andrey N. Sabelnikov nor the
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// names of its contributors may 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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#pragma once
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namespace epee
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{
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template<class t_server>
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bool empty_commands_handler(t_server* psrv, const std::string& command)
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{
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return true;
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}
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template<class t_server, class chain_handler>
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bool default_console_handler(t_server* psrv, chain_handler ch_handler, const std::string usage = "")
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{
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TRY_ENTRY();
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bool continue_handle = true;
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while(continue_handle)
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{
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char command_buff[400] = {0};
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std::string command;
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std::cin.getline(command_buff, 399);
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if(std::cin.eof() || std::cin.fail())
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{
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LOG_PRINT("std::cin.eof() or std::cin.fail(), stopping...", LOG_LEVEL_0);
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continue_handle = false;
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break;
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}
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command = command_buff;
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if(!command.compare("exit") || !command.compare("q") )
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{
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psrv->send_stop_signal();
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continue_handle = false;
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}else if ( !command.compare(0, 7, "set_log"))
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{
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//parse set_log command
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if(command.size() != 9)
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{
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std::cout << "wrong syntax: " << command << std::endl << "use set_log n" << std::endl;
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continue;
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}
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int n = 0;
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if(!string_tools::get_xtype_from_string(n, command.substr(8, 1)))
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{
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std::cout << "wrong syntax: " << command << std::endl << "use set_log n" << std::endl;
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continue;
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}
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log_space::get_set_log_detalisation_level(true, n);
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LOG_PRINT_L0("New log level set " << n);
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}
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else if(ch_handler(psrv, command))
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continue;
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else
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{
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std::cout << "unknown command: " << command << std::endl;
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std::cout << usage;
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}
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}
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return true;
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CATCH_ENTRY_L0("console_handler", false);
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}
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template<class chain_handler>
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bool default_console_handler2(chain_handler ch_handler, const std::string usage)
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{
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TRY_ENTRY();
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bool continue_handle = true;
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while(continue_handle)
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{
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char command_buff[400] = {0};
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std::string command;
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std::cin.getline(command_buff, 399);
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if(std::cin.eof() || std::cin.fail())
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{
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LOG_PRINT("std::cin.eof() or std::cin.fail(), stopping...", LOG_LEVEL_0);
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continue_handle = false;
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break;
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}
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command = command_buff;
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if(!command.compare("exit") || !command.compare("q") )
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{
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continue_handle = false;
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}else if ( !command.compare(0, 7, "set_log"))
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{
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//parse set_log command
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if(command.size() != 9)
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{
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std::cout << "wrong syntax: " << command << std::endl << "use set_log n" << std::endl;
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continue;
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}
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int n = 0;
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if(!string_tools::get_xtype_from_string(n, command.substr(8, 1)))
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{
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std::cout << "wrong syntax: " << command << std::endl << "use set_log n" << std::endl;
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continue;
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}
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log_space::get_set_log_detalisation_level(true, n);
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LOG_PRINT_L0("New log level set " << n);
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}
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else if(ch_handler(command))
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continue;
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else
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{
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std::cout << "unknown command: " << command << std::endl;
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std::cout << usage;
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}
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}
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return true;
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CATCH_ENTRY_L0("console_handler", false);
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}
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template<class t_server, class t_handler>
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bool start_default_console(t_server* ptsrv, t_handler handlr, const std::string& usage = "")
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{
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boost::thread( boost::bind(default_console_handler<t_server, t_handler>, ptsrv, handlr, usage) );
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return true;
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}
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template<class t_server>
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bool start_default_console(t_server* ptsrv, const std::string& usage = "")
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{
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return start_default_console(ptsrv, empty_commands_handler<t_server>, usage);
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}
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template<class t_server, class t_handler>
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bool no_srv_param_adapter(t_server* ptsrv, const std::string& cmd, t_handler handlr)
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{
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return handlr(cmd);
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}
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template<class t_server, class t_handler>
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bool run_default_console_handler_no_srv_param(t_server* ptsrv, t_handler handlr, const std::string& usage = "")
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{
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return default_console_handler(ptsrv, boost::bind<bool>(no_srv_param_adapter<t_server, t_handler>, _1, _2, handlr), usage);
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}
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template<class t_server, class t_handler>
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bool start_default_console_handler_no_srv_param(t_server* ptsrv, t_handler handlr, const std::string& usage = "")
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{
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boost::thread( boost::bind(run_default_console_handler_no_srv_param<t_server, t_handler>, ptsrv, handlr, usage) );
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return true;
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}
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/*template<class a>
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bool f(int i, a l)
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{
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return true;
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}*/
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/*
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template<class chain_handler>
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bool default_console_handler2(chain_handler ch_handler, const std::string usage)
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*/
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/*template<class t_handler>
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bool start_default_console2(t_handler handlr, const std::string& usage = "")
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{
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//std::string usage_local = usage;
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boost::thread( boost::bind(default_console_handler2<t_handler>, handlr, usage) );
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//boost::function<bool ()> p__ = boost::bind(f<t_handler>, 1, handlr);
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//boost::function<bool ()> p__ = boost::bind(default_console_handler2<t_handler>, handlr, usage);
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//boost::thread tr(p__);
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return true;
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}*/
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/************************************************************************/
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/* */
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/************************************************************************/
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class console_handlers_binder
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{
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typedef boost::function<bool (const std::vector<std::string> &)> console_command_handler;
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typedef std::map<std::string, std::pair<console_command_handler, std::string> > command_handlers_map;
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std::unique_ptr<boost::thread> m_console_thread;
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command_handlers_map m_command_handlers;
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public:
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std::string get_usage()
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{
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std::stringstream ss;
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size_t max_command_len = 0;
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for(auto& x:m_command_handlers)
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if(x.first.size() > max_command_len)
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max_command_len = x.first.size();
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for(auto& x:m_command_handlers)
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{
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ss.width(max_command_len + 3);
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ss << std::left << x.first << x.second.second << ENDL;
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}
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return ss.str();
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}
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void set_handler(const std::string& cmd, const console_command_handler& hndlr, const std::string& usage = "")
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{
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command_handlers_map::mapped_type & vt = m_command_handlers[cmd];
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vt.first = hndlr;
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vt.second = usage;
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}
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bool process_command_vec(const std::vector<std::string>& cmd)
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{
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if(!cmd.size())
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return false;
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auto it = m_command_handlers.find(cmd.front());
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if(it == m_command_handlers.end())
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return false;
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std::vector<std::string> cmd_local(cmd.begin()+1, cmd.end());
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return it->second.first(cmd_local);
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}
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bool process_command_str(const std::string& cmd)
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{
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std::vector<std::string> cmd_v;
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boost::split(cmd_v,cmd,boost::is_any_of(" "), boost::token_compress_on);
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return process_command_vec(cmd_v);
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}
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/*template<class t_srv>
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bool start_handling(t_srv& srv, const std::string& usage_string = "")
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{
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start_default_console_handler_no_srv_param(&srv, boost::bind(&console_handlers_binder::process_command_str, this, _1));
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return true;
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}*/
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bool start_handling(const std::string& usage_string = "")
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{
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m_console_thread.reset(new boost::thread(boost::bind(&console_handlers_binder::run_handling, this, usage_string) ));
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return true;
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}
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bool stop_handling()
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{
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if(m_console_thread.get())
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m_console_thread->interrupt();
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return true;
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}
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bool run_handling(const std::string usage_string)
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{
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return default_console_handler2(boost::bind(&console_handlers_binder::process_command_str, this, _1), usage_string);
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}
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/*template<class t_srv>
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bool run_handling(t_srv& srv, const std::string& usage_string)
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{
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return run_default_console_handler_no_srv_param(&srv, boost::bind<bool>(&console_handlers_binder::process_command_str, this, _1), usage_string);
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}*/
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};
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/* work around because of broken boost bind */
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template<class t_server>
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class srv_console_handlers_binder: public console_handlers_binder
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{
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bool process_command_str(t_server* /*psrv*/, const std::string& cmd)
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{
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return console_handlers_binder::process_command_str(cmd);
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}
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public:
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bool start_handling(t_server* psrv, const std::string& usage_string = "")
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{
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boost::thread(boost::bind(&srv_console_handlers_binder<t_server>::run_handling, this, psrv, usage_string) );
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return true;
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}
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bool run_handling(t_server* psrv, const std::string usage_string)
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{
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return default_console_handler(psrv, boost::bind(&srv_console_handlers_binder<t_server>::process_command_str, this, _1, _2), usage_string);
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}
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};
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}
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