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Diffstat (limited to '')
-rw-r--r-- | src/DatabaseGlue.cxx | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/DatabaseGlue.cxx b/src/DatabaseGlue.cxx new file mode 100644 index 000000000..db7d4b9f3 --- /dev/null +++ b/src/DatabaseGlue.cxx @@ -0,0 +1,167 @@ +/* + * Copyright (C) 2003-2011 The Music Player Daemon Project + * http://www.musicpd.org + * + * 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 2 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, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" +#include "DatabaseGlue.hxx" +#include "DatabaseSimple.hxx" +#include "DatabaseRegistry.hxx" +#include "DatabaseSave.hxx" +#include "Directory.hxx" +#include "conf.h" + +extern "C" { +#include "db_error.h" +#include "stats.h" +} + +#include "DatabasePlugin.hxx" +#include "db/SimpleDatabasePlugin.hxx" + +#include <glib.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <assert.h> +#include <string.h> +#include <errno.h> + +#undef G_LOG_DOMAIN +#define G_LOG_DOMAIN "database" + +static Database *db; +static bool db_is_open; +static bool is_simple; + +bool +DatabaseGlobalInit(const config_param *param, GError **error_r) +{ + assert(db == NULL); + assert(!db_is_open); + + const char *plugin_name = + config_get_block_string(param, "plugin", "simple"); + is_simple = strcmp(plugin_name, "simple") == 0; + + const DatabasePlugin *plugin = GetDatabasePluginByName(plugin_name); + if (plugin == NULL) { + g_set_error(error_r, db_quark(), 0, + "No such database plugin: %s", plugin_name); + return false; + } + + db = plugin->create(param, error_r); + return db != NULL; +} + +void +DatabaseGlobalDeinit(void) +{ + if (db_is_open) + db->Close(); + + if (db != NULL) + delete db; +} + +const Database * +GetDatabase() +{ + assert(db == NULL || db_is_open); + + return db; +} + +const Database * +GetDatabase(GError **error_r) +{ + assert(db == nullptr || db_is_open); + + if (db == nullptr) + g_set_error_literal(error_r, db_quark(), DB_DISABLED, + "No database"); + + return db; +} + +bool +db_is_simple(void) +{ + assert(db == NULL || db_is_open); + + return is_simple; +} + +Directory * +db_get_root(void) +{ + assert(db != NULL); + assert(db_is_simple()); + + return ((SimpleDatabase *)db)->GetRoot(); +} + +Directory * +db_get_directory(const char *name) +{ + if (db == NULL) + return NULL; + + Directory *music_root = db_get_root(); + if (name == NULL) + return music_root; + + return music_root->LookupDirectory(name); +} + +bool +db_save(GError **error_r) +{ + assert(db != NULL); + assert(db_is_open); + assert(db_is_simple()); + + return ((SimpleDatabase *)db)->Save(error_r); +} + +bool +DatabaseGlobalOpen(GError **error) +{ + assert(db != NULL); + assert(!db_is_open); + + if (!db->Open(error)) + return false; + + db_is_open = true; + + stats_update(); + + return true; +} + +time_t +db_get_mtime(void) +{ + assert(db != NULL); + assert(db_is_open); + assert(db_is_simple()); + + return ((SimpleDatabase *)db)->GetLastModified(); +} |