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//
// Copyright 2010-2011 Ettus Research LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#include <uhd/utils/warning.hpp>
#include <boost/tokenizer.hpp>
#include <uhd/utils/static.hpp>
#include <uhd/types/dict.hpp>
#include <boost/foreach.hpp>
#include <sstream>
#include <stdexcept>
#include <iostream>
#include <vector>
using namespace uhd;
#define tokenizer(inp, sep) \
boost::tokenizer<boost::char_separator<char> > \
(inp, boost::char_separator<char>(sep))
/***********************************************************************
* Registry implementation
**********************************************************************/
//create the registry for the handlers
typedef uhd::dict<std::string, warning::handler_t> registry_t;
UHD_SINGLETON_FCN(registry_t, get_registry)
//the default warning handler
static void stderr_warning(const std::string &msg){
std::cerr << msg;
}
//register a default handler
UHD_STATIC_BLOCK(warning_register_default){
warning::register_handler("default", &stderr_warning);
}
/***********************************************************************
* Post + format
**********************************************************************/
void warning::post(const std::string &msg){
std::stringstream ss;
//format the warning message
ss << std::endl << "Warning:" << std::endl;
BOOST_FOREACH(const std::string &line, tokenizer(msg, "\n")){
ss << " " << line << std::endl;
}
//post the formatted message
BOOST_FOREACH(const std::string &name, get_registry().keys()){
get_registry()[name](ss.str());
}
}
/***********************************************************************
* Registry accessor functions
**********************************************************************/
void warning::register_handler(
const std::string &name, const handler_t &handler
){
get_registry()[name] = handler;
}
warning::handler_t warning::unregister_handler(const std::string &name){
if (not get_registry().has_key(name)) throw std::runtime_error(
"The warning registry does not have a handler registered to " + name
);
return get_registry().pop(name);
}
const std::vector<std::string> warning::registry_names(void){
return get_registry().keys();
}
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