168 lines
3.1 KiB
C++
168 lines
3.1 KiB
C++
/*
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* Copyright (C) 2003-2011 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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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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*
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* This program 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "DatabaseGlue.hxx"
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#include "DatabaseSimple.hxx"
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#include "DatabaseRegistry.hxx"
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#include "DatabaseSave.hxx"
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#include "DatabaseError.hxx"
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#include "Directory.hxx"
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#include "util/Error.hxx"
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#include "conf.h"
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extern "C" {
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#include "stats.h"
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}
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#include "DatabasePlugin.hxx"
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#include "db/SimpleDatabasePlugin.hxx"
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#include <glib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <assert.h>
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#include <string.h>
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#include <errno.h>
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#undef G_LOG_DOMAIN
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#define G_LOG_DOMAIN "database"
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static Database *db;
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static bool db_is_open;
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static bool is_simple;
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bool
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DatabaseGlobalInit(const config_param ¶m, Error &error)
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{
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assert(db == NULL);
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assert(!db_is_open);
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const char *plugin_name =
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param.GetBlockValue("plugin", "simple");
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is_simple = strcmp(plugin_name, "simple") == 0;
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const DatabasePlugin *plugin = GetDatabasePluginByName(plugin_name);
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if (plugin == NULL) {
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error.Format(db_domain,
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"No such database plugin: %s", plugin_name);
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return false;
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}
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db = plugin->create(param, error);
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return db != NULL;
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}
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void
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DatabaseGlobalDeinit(void)
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{
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if (db_is_open)
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db->Close();
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if (db != NULL)
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delete db;
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}
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const Database *
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GetDatabase()
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{
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assert(db == NULL || db_is_open);
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return db;
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}
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const Database *
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GetDatabase(Error &error)
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{
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assert(db == nullptr || db_is_open);
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if (db == nullptr)
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error.Set(db_domain, DB_DISABLED, "No database");
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return db;
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}
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bool
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db_is_simple(void)
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{
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assert(db == NULL || db_is_open);
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return is_simple;
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}
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Directory *
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db_get_root(void)
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{
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assert(db != NULL);
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assert(db_is_simple());
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return ((SimpleDatabase *)db)->GetRoot();
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}
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Directory *
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db_get_directory(const char *name)
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{
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if (db == NULL)
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return NULL;
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Directory *music_root = db_get_root();
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if (name == NULL)
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return music_root;
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return music_root->LookupDirectory(name);
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}
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bool
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db_save(Error &error)
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{
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assert(db != NULL);
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assert(db_is_open);
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assert(db_is_simple());
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return ((SimpleDatabase *)db)->Save(error);
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}
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bool
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DatabaseGlobalOpen(Error &error)
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{
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assert(db != NULL);
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assert(!db_is_open);
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if (!db->Open(error))
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return false;
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db_is_open = true;
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stats_update();
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return true;
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}
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time_t
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db_get_mtime(void)
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{
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assert(db != NULL);
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assert(db_is_open);
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assert(db_is_simple());
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return ((SimpleDatabase *)db)->GetLastModified();
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}
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