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//
// Copyright 2010 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/static.hpp>
#include <boost/format.hpp>
#include <boost/foreach.hpp>
#include <boost/filesystem.hpp>
#include <iostream>
#include <stdexcept>
#include <string>
#include <vector>
namespace fs = boost::filesystem;
/***********************************************************************
* Module Load Function
**********************************************************************/
#if defined(HAVE_DLFCN_H)
#include <dlfcn.h>
static void load_module(const std::string &file_name){
if (dlopen(file_name.c_str(), RTLD_LAZY) == NULL){
throw std::runtime_error(str(
boost::format("dlopen failed to load \"%s\"") % file_name
));
}
}
#elif defined(HAVE_WINDOWS_H)
#include <windows.h>
static void load_module(const std::string &file_name){
if (LoadLibrary(file_name.c_str()) == NULL){
throw std::runtime_error(str(
boost::format("LoadLibrary failed to load \"%s\"") % file_name
));
}
}
#else
static void load_module(const std::string &file_name){
throw std::runtime_error(str(
boost::format("Module loading not supported: Cannot load \"%s\"") % file_name
));
}
#endif
/***********************************************************************
* Load Modules
**********************************************************************/
/*!
* Load all modules in a given path.
* This will recurse into sub-directories.
* Does not throw, prints to std error.
* \param path the filesystem path
*/
static void load_module_path(const fs::path &path){
if (not fs::exists(path)){
//std::cerr << boost::format("Module path \"%s\" not found.") % path.file_string() << std::endl;
return;
}
//try to load the files in this path
if (fs::is_directory(path)){
for(
fs::directory_iterator dir_itr(path);
dir_itr != fs::directory_iterator();
++dir_itr
){
load_module_path(dir_itr->path());
}
return;
}
//its not a directory, try to load it
try{
load_module(path.file_string());
}
catch(const std::exception &err){
std::cerr << boost::format("Error: %s") % err.what() << std::endl;
}
}
std::vector<fs::path> get_module_paths(void); //defined in paths.cpp
/*!
* Load all the modules given in the module paths.
*/
UHD_STATIC_BLOCK(load_modules){
BOOST_FOREACH(const fs::path &path, get_module_paths()){
load_module_path(path);
}
}
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