forked from 0ad/0ad
323 lines
7.8 KiB
C++
323 lines
7.8 KiB
C++
/* Copyright (C) 2014 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. 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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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include <boost/algorithm/string.hpp>
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#include "CLogger.h"
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#include "ConfigDB.h"
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#include "Filesystem.h"
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#include "Parser.h"
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#include "ThreadUtil.h"
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#include "lib/allocators/shared_ptr.h"
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typedef std::map <CStr, CConfigValueSet> TConfigMap;
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TConfigMap CConfigDB::m_Map[CFG_LAST];
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VfsPath CConfigDB::m_ConfigFile[CFG_LAST];
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static pthread_mutex_t cfgdb_mutex = PTHREAD_MUTEX_INITIALIZER;
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CConfigDB::CConfigDB()
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{
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// Recursive mutex needed for WriteFile
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pthread_mutexattr_t attr;
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int err;
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err = pthread_mutexattr_init(&attr);
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ENSURE(err == 0);
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err = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
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ENSURE(err == 0);
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err = pthread_mutex_init(&cfgdb_mutex, &attr);
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ENSURE(err == 0);
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err = pthread_mutexattr_destroy(&attr);
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ENSURE(err == 0);
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}
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#define GETVAL(T, type) \
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void CConfigDB::GetValue##T(EConfigNamespace ns, const CStr& name, type& value) \
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{ \
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if (ns < 0 || ns >= CFG_LAST) \
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{ \
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debug_warn(L"CConfigDB: Invalid ns value"); \
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return; \
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} \
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CScopeLock s(&cfgdb_mutex); \
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TConfigMap::iterator it = m_Map[CFG_COMMAND].find(name); \
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if (it != m_Map[CFG_COMMAND].end()) \
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{ \
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it->second[0].Get##T(value); \
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return; \
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} \
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\
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for (int search_ns = ns; search_ns >= 0; search_ns--) \
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{ \
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it = m_Map[search_ns].find(name); \
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if (it != m_Map[search_ns].end()) \
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{ \
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it->second[0].Get##T(value); \
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return; \
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} \
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} \
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}
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GETVAL(Bool, bool)
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GETVAL(Int, int)
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GETVAL(Float, float)
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GETVAL(Double, double)
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GETVAL(String, std::string)
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#undef GETVAL
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void CConfigDB::GetValues(EConfigNamespace ns, const CStr& name, CConfigValueSet& values)
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{
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if (ns < 0 || ns >= CFG_LAST)
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{
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debug_warn(L"CConfigDB: Invalid ns value");
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return;
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}
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CScopeLock s(&cfgdb_mutex);
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TConfigMap::iterator it = m_Map[CFG_COMMAND].find(name);
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if (it != m_Map[CFG_COMMAND].end())
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{
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values = it->second;
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return;
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}
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for (int search_ns = ns; search_ns >= 0; search_ns--)
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{
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it = m_Map[search_ns].find(name);
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if (it != m_Map[search_ns].end())
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{
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values = it->second;
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return;
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}
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}
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}
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EConfigNamespace CConfigDB::GetValueNamespace(EConfigNamespace ns, const CStr& name)
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{
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if (ns < 0 || ns >= CFG_LAST)
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{
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debug_warn(L"CConfigDB: Invalid ns value");
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return CFG_LAST;
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}
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CScopeLock s(&cfgdb_mutex);
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TConfigMap::iterator it = m_Map[CFG_COMMAND].find(name);
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if (it != m_Map[CFG_COMMAND].end())
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return CFG_COMMAND;
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for (int search_ns = ns; search_ns >= 0; search_ns--)
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{
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it = m_Map[search_ns].find(name);
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if (it != m_Map[search_ns].end())
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return (EConfigNamespace)search_ns;
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}
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return CFG_LAST;
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}
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std::map<CStr, CConfigValueSet> CConfigDB::GetValuesWithPrefix(EConfigNamespace ns, const CStr& prefix)
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{
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CScopeLock s(&cfgdb_mutex);
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std::map<CStr, CConfigValueSet> ret;
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if (ns < 0 || ns >= CFG_LAST)
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{
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debug_warn(L"CConfigDB: Invalid ns value");
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return ret;
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}
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// Loop upwards so that values in later namespaces can override
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// values in earlier namespaces
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for (int search_ns = 0; search_ns <= ns; search_ns++)
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{
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for (TConfigMap::iterator it = m_Map[search_ns].begin(); it != m_Map[search_ns].end(); ++it)
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{
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if (boost::algorithm::starts_with(it->first, prefix))
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ret[it->first] = it->second;
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}
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}
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for (TConfigMap::iterator it = m_Map[CFG_COMMAND].begin(); it != m_Map[CFG_COMMAND].end(); ++it)
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{
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if (boost::algorithm::starts_with(it->first, prefix))
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ret[it->first] = it->second;
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}
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return ret;
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}
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void CConfigDB::SetValueString(EConfigNamespace ns, const CStr& name, const CStr& value)
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{
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if (ns < 0 || ns >= CFG_LAST)
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{
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debug_warn(L"CConfigDB: Invalid ns value");
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return;
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}
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CScopeLock s(&cfgdb_mutex);
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TConfigMap::iterator it = m_Map[ns].find(name);
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if (it == m_Map[ns].end())
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it = m_Map[ns].insert(m_Map[ns].begin(), make_pair(name, CConfigValueSet(1)));
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it->second[0].m_String = value;
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}
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void CConfigDB::SetConfigFile(EConfigNamespace ns, const VfsPath& path)
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{
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if (ns < 0 || ns >= CFG_LAST)
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{
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debug_warn(L"CConfigDB: Invalid ns value");
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return;
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}
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CScopeLock s(&cfgdb_mutex);
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m_ConfigFile[ns]=path;
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}
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bool CConfigDB::Reload(EConfigNamespace ns)
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{
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if (ns < 0 || ns >= CFG_LAST)
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{
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debug_warn(L"CConfigDB: Invalid ns value");
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return false;
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}
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CScopeLock s(&cfgdb_mutex);
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// Set up CParser
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CParser parser;
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CParserLine parserLine;
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parser.InputTaskType("Assignment", "_$ident_=<_[-$arg(_minus)]_$value_,>_[-$arg(_minus)]_$value[[;]$rest]");
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parser.InputTaskType("CommentOrBlank", "_[;[$rest]]");
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// Open file with VFS
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shared_ptr<u8> buffer; size_t buflen;
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{
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// Handle missing files quietly
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if (g_VFS->GetFileInfo(m_ConfigFile[ns], NULL) < 0)
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{
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LOGMESSAGE(L"Cannot find config file \"%ls\" - ignoring", m_ConfigFile[ns].string().c_str());
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return false;
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}
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else
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{
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LOGMESSAGE(L"Loading config file \"%ls\"", m_ConfigFile[ns].string().c_str());
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Status ret = g_VFS->LoadFile(m_ConfigFile[ns], buffer, buflen);
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if (ret != INFO::OK)
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{
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LOGERROR(L"CConfigDB::Reload(): vfs_load for \"%ls\" failed: return was %lld", m_ConfigFile[ns].string().c_str(), (long long)ret);
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return false;
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}
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}
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}
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TConfigMap newMap;
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char *filebuf=(char *)buffer.get();
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char *filebufend=filebuf+buflen;
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// Read file line by line
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char *next=filebuf-1;
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do
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{
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char *pos=next+1;
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next=(char *)memchr(pos, '\n', filebufend-pos);
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if (!next) next=filebufend;
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char *lend=next;
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if (lend > filebuf && *(lend-1) == '\r') lend--;
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// Send line to parser
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bool parseOk=parserLine.ParseString(parser, std::string(pos, lend));
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// Get name and value from parser
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std::string name;
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std::string value;
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if (parseOk &&
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parserLine.GetArgCount()>=2 &&
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parserLine.GetArgString(0, name) &&
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parserLine.GetArgString(1, value))
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{
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// Add name and value to the map
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size_t argCount = parserLine.GetArgCount();
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newMap[name].clear();
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for( size_t t = 0; t < argCount; t++ )
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{
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if( !parserLine.GetArgString( (int)t + 1, value ) )
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continue;
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CConfigValue argument;
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argument.m_String = value;
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newMap[name].push_back( argument );
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if (name == "lobby.password")
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value = "*******";
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LOGMESSAGE(L"Loaded config string \"%hs\" = \"%hs\"", name.c_str(), value.c_str());
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}
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}
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}
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while (next < filebufend);
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m_Map[ns].swap(newMap);
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return true;
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}
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bool CConfigDB::WriteFile(EConfigNamespace ns)
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{
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if (ns < 0 || ns >= CFG_LAST)
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{
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debug_warn(L"CConfigDB: Invalid ns value");
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return false;
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}
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CScopeLock s(&cfgdb_mutex);
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return WriteFile(ns, m_ConfigFile[ns]);
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}
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bool CConfigDB::WriteFile(EConfigNamespace ns, const VfsPath& path)
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{
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if (ns < 0 || ns >= CFG_LAST)
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{
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debug_warn(L"CConfigDB: Invalid ns value");
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return false;
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}
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CScopeLock s(&cfgdb_mutex);
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shared_ptr<u8> buf;
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AllocateAligned(buf, 1*MiB, maxSectorSize);
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char* pos = (char*)buf.get();
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TConfigMap &map=m_Map[ns];
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for(TConfigMap::const_iterator it = map.begin(); it != map.end(); ++it)
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{
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pos += sprintf(pos, "%s = \"%s\"\n", it->first.c_str(), it->second[0].m_String.c_str());
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}
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const size_t len = pos - (char*)buf.get();
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Status ret = g_VFS->CreateFile(path, buf, len);
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if(ret < 0)
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{
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LOGERROR(L"CConfigDB::WriteFile(): CreateFile \"%ls\" failed (error: %d)", path.string().c_str(), (int)ret);
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return false;
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}
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return true;
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}
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