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// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of the Andrey N. Sabelnikov nor the
// names of its contributors may be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
#pragma once
namespace epee
{
template<class t_server>
bool empty_commands_handler(t_server* psrv, const std::string& command)
{
return true;
}
template<class t_server, class chain_handler>
bool default_console_handler(t_server* psrv, chain_handler ch_handler, const std::string usage = "")
{
TRY_ENTRY();
bool continue_handle = true;
while(continue_handle)
{
char command_buff[400] = {0};
std::string command;
std::cin.getline(command_buff, 399);
if(std::cin.eof() || std::cin.fail())
{
LOG_PRINT("std::cin.eof() or std::cin.fail(), stopping...", LOG_LEVEL_0);
continue_handle = false;
break;
}
command = command_buff;
if(!command.compare("exit") || !command.compare("q") )
{
psrv->send_stop_signal();
continue_handle = false;
}else if ( !command.compare(0, 7, "set_log"))
{
//parse set_log command
if(command.size() != 9)
{
std::cout << "wrong syntax: " << command << std::endl << "use set_log n" << std::endl;
continue;
}
int n = 0;
if(!string_tools::get_xtype_from_string(n, command.substr(8, 1)))
{
std::cout << "wrong syntax: " << command << std::endl << "use set_log n" << std::endl;
continue;
}
log_space::get_set_log_detalisation_level(true, n);
LOG_PRINT_L0("New log level set " << n);
}
else if(ch_handler(psrv, command))
continue;
else
{
std::cout << "unknown command: " << command << std::endl;
std::cout << usage;
}
}
return true;
CATCH_ENTRY_L0("console_handler", false);
}
template<class chain_handler>
bool default_console_handler2(chain_handler ch_handler, const std::string usage)
{
TRY_ENTRY();
bool continue_handle = true;
while(continue_handle)
{
char command_buff[400] = {0};
std::string command;
std::cin.getline(command_buff, 399);
if(std::cin.eof() || std::cin.fail())
{
LOG_PRINT("std::cin.eof() or std::cin.fail(), stopping...", LOG_LEVEL_0);
continue_handle = false;
break;
}
command = command_buff;
if(!command.compare("exit") || !command.compare("q") )
{
continue_handle = false;
}else if ( !command.compare(0, 7, "set_log"))
{
//parse set_log command
if(command.size() != 9)
{
std::cout << "wrong syntax: " << command << std::endl << "use set_log n" << std::endl;
continue;
}
int n = 0;
if(!string_tools::get_xtype_from_string(n, command.substr(8, 1)))
{
std::cout << "wrong syntax: " << command << std::endl << "use set_log n" << std::endl;
continue;
}
log_space::get_set_log_detalisation_level(true, n);
LOG_PRINT_L0("New log level set " << n);
}
else if(ch_handler(command))
continue;
else
{
std::cout << "unknown command: " << command << std::endl;
std::cout << usage;
}
}
return true;
CATCH_ENTRY_L0("console_handler", false);
}
template<class t_server, class t_handler>
bool start_default_console(t_server* ptsrv, t_handler handlr, const std::string& usage = "")
{
boost::thread( boost::bind(default_console_handler<t_server, t_handler>, ptsrv, handlr, usage) );
return true;
}
template<class t_server>
bool start_default_console(t_server* ptsrv, const std::string& usage = "")
{
return start_default_console(ptsrv, empty_commands_handler<t_server>, usage);
}
template<class t_server, class t_handler>
bool no_srv_param_adapter(t_server* ptsrv, const std::string& cmd, t_handler handlr)
{
return handlr(cmd);
}
template<class t_server, class t_handler>
bool run_default_console_handler_no_srv_param(t_server* ptsrv, t_handler handlr, const std::string& usage = "")
{
return default_console_handler(ptsrv, boost::bind<bool>(no_srv_param_adapter<t_server, t_handler>, _1, _2, handlr), usage);
}
template<class t_server, class t_handler>
bool start_default_console_handler_no_srv_param(t_server* ptsrv, t_handler handlr, const std::string& usage = "")
{
boost::thread( boost::bind(run_default_console_handler_no_srv_param<t_server, t_handler>, ptsrv, handlr, usage) );
return true;
}
/*template<class a>
bool f(int i, a l)
{
return true;
}*/
/*
template<class chain_handler>
bool default_console_handler2(chain_handler ch_handler, const std::string usage)
*/
/*template<class t_handler>
bool start_default_console2(t_handler handlr, const std::string& usage = "")
{
//std::string usage_local = usage;
boost::thread( boost::bind(default_console_handler2<t_handler>, handlr, usage) );
//boost::function<bool ()> p__ = boost::bind(f<t_handler>, 1, handlr);
//boost::function<bool ()> p__ = boost::bind(default_console_handler2<t_handler>, handlr, usage);
//boost::thread tr(p__);
return true;
}*/
/************************************************************************/
/* */
/************************************************************************/
class console_handlers_binder
{
typedef boost::function<bool (const std::vector<std::string> &)> console_command_handler;
typedef std::map<std::string, std::pair<console_command_handler, std::string> > command_handlers_map;
std::unique_ptr<boost::thread> m_console_thread;
command_handlers_map m_command_handlers;
public:
std::string get_usage()
{
std::stringstream ss;
size_t max_command_len = 0;
for(auto& x:m_command_handlers)
if(x.first.size() > max_command_len)
max_command_len = x.first.size();
for(auto& x:m_command_handlers)
{
ss.width(max_command_len + 3);
ss << std::left << x.first << x.second.second << ENDL;
}
return ss.str();
}
void set_handler(const std::string& cmd, const console_command_handler& hndlr, const std::string& usage = "")
{
command_handlers_map::mapped_type & vt = m_command_handlers[cmd];
vt.first = hndlr;
vt.second = usage;
}
bool process_command_vec(const std::vector<std::string>& cmd)
{
if(!cmd.size())
return false;
auto it = m_command_handlers.find(cmd.front());
if(it == m_command_handlers.end())
return false;
std::vector<std::string> cmd_local(cmd.begin()+1, cmd.end());
return it->second.first(cmd_local);
}
bool process_command_str(const std::string& cmd)
{
std::vector<std::string> cmd_v;
boost::split(cmd_v,cmd,boost::is_any_of(" "), boost::token_compress_on);
return process_command_vec(cmd_v);
}
/*template<class t_srv>
bool start_handling(t_srv& srv, const std::string& usage_string = "")
{
start_default_console_handler_no_srv_param(&srv, boost::bind(&console_handlers_binder::process_command_str, this, _1));
return true;
}*/
bool start_handling(const std::string& usage_string = "")
{
m_console_thread.reset(new boost::thread(boost::bind(&console_handlers_binder::run_handling, this, usage_string) ));
return true;
}
bool stop_handling()
{
if(m_console_thread.get())
m_console_thread->interrupt();
return true;
}
bool run_handling(const std::string usage_string)
{
return default_console_handler2(boost::bind(&console_handlers_binder::process_command_str, this, _1), usage_string);
}
/*template<class t_srv>
bool run_handling(t_srv& srv, const std::string& usage_string)
{
return run_default_console_handler_no_srv_param(&srv, boost::bind<bool>(&console_handlers_binder::process_command_str, this, _1), usage_string);
}*/
};
/* work around because of broken boost bind */
template<class t_server>
class srv_console_handlers_binder: public console_handlers_binder
{
bool process_command_str(t_server* /*psrv*/, const std::string& cmd)
{
return console_handlers_binder::process_command_str(cmd);
}
public:
bool start_handling(t_server* psrv, const std::string& usage_string = "")
{
boost::thread(boost::bind(&srv_console_handlers_binder<t_server>::run_handling, this, psrv, usage_string) );
return true;
}
bool run_handling(t_server* psrv, const std::string usage_string)
{
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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