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//
// Copyright 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/property_tree.hpp>
#include <uhd/types/dict.hpp>
#include <boost/foreach.hpp>
#include <boost/thread/mutex.hpp>
#include <iostream>
class property_tree_impl : public uhd::property_tree{
public:
void remove(const path_type &path){
boost::mutex::scoped_lock lock(_mutex);
node_type *parent = NULL;
node_type *node = &_root;
BOOST_FOREACH(const std::string &leaf, path){
if (not node->has_key(leaf)) throw_path_not_found(path);
parent = node;
node = &(*node)[leaf];
}
if (parent == NULL) throw uhd::runtime_error("Cannot uproot");
parent->pop(path.leaf());
}
bool exists(const path_type &path){
boost::mutex::scoped_lock lock(_mutex);
node_type *node = &_root;
BOOST_FOREACH(const std::string &leaf, path){
if (not node->has_key(leaf)) return false;
node = &(*node)[leaf];
}
return true;
}
std::vector<std::string> list(const path_type &path){
boost::mutex::scoped_lock lock(_mutex);
node_type *node = &_root;
BOOST_FOREACH(const std::string &leaf, path){
if (not node->has_key(leaf)) throw_path_not_found(path);
node = &(*node)[leaf];
}
return node->keys();
}
void _create(const path_type &path, const boost::any &prop){
boost::mutex::scoped_lock lock(_mutex);
node_type *node = &_root;
BOOST_FOREACH(const std::string &leaf, path){
if (not node->has_key(leaf)) (*node)[leaf] = node_type();
node = &(*node)[leaf];
}
node->prop = prop;
}
boost::any &_access(const path_type &path){
boost::mutex::scoped_lock lock(_mutex);
node_type *node = &_root;
BOOST_FOREACH(const std::string &leaf, path){
if (not node->has_key(leaf)) throw_path_not_found(path);
node = &(*node)[leaf];
}
return node->prop;
}
private:
void throw_path_not_found(const path_type &path){
throw uhd::lookup_error("Path not found in tree: " + path.string());
}
struct node_type : uhd::dict<std::string, node_type>{
boost::any prop;
} _root;
boost::mutex _mutex;
};
uhd::property_tree::sptr uhd::property_tree::make(void){
return sptr(new property_tree_impl());
}
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