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https://github.com/wesnoth/wesnoth
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74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
/*
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Copyright (C) 2010 - 2017 by Jody Northup
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Part of the Battle for Wesnoth Project http://www.wesnoth.org/
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY.
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See the COPYING file for more details.
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*/
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#include "persist_context.hpp"
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#include "persist_manager.hpp"
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persist_manager::persist_manager()
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: in_transaction_(false)
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, contexts_()
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{}
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persist_manager::~persist_manager() {
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cancel_transaction();
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for (context_map::iterator i = contexts_.begin(); i != contexts_.end(); ++i)
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delete (i->second);
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}
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persist_context &persist_manager::get_context(const std::string &ns)
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{
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persist_context::name_space name(ns,true);
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std::string key(name.root_);
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context_map::iterator i = contexts_.find(key);
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if (i == contexts_.end()) {
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contexts_[key] = new persist_file_context(key);
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if (in_transaction_) contexts_[key]->start_transaction();
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}
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persist_context *ret = contexts_[key];
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if (ret->get_node() != ns)
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ret->set_node(name.descendants_);
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return *ret;
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}
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bool persist_manager::start_transaction() {
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if (in_transaction_) return false;
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bool result = true;
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for (context_map::reference ctx : contexts_) {
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result &= ctx.second->start_transaction();
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}
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in_transaction_ = true;
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return result;
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}
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bool persist_manager::end_transaction() {
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if (!in_transaction_) return false;
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bool result = true;
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for (context_map::reference ctx : contexts_) {
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result &= ctx.second->end_transaction();
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}
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in_transaction_ = !result;
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return result;
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}
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bool persist_manager::cancel_transaction() {
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if (!in_transaction_) return false;
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bool result = true;
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for (context_map::reference ctx : contexts_) {
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result &= ctx.second->cancel_transaction();
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}
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in_transaction_ = false;
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return result;
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}
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