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-rw-r--r--src/db/DatabaseGlue.cxx152
1 files changed, 152 insertions, 0 deletions
diff --git a/src/db/DatabaseGlue.cxx b/src/db/DatabaseGlue.cxx
new file mode 100644
index 000000000..3734e156c
--- /dev/null
+++ b/src/db/DatabaseGlue.cxx
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2003-2014 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 "Registry.hxx"
+#include "DatabaseError.hxx"
+#include "Directory.hxx"
+#include "util/Error.hxx"
+#include "config/ConfigData.hxx"
+#include "Stats.hxx"
+#include "DatabasePlugin.hxx"
+#include "plugins/SimpleDatabasePlugin.hxx"
+
+#include <assert.h>
+#include <string.h>
+
+static Database *db;
+static bool db_is_open;
+static bool is_simple;
+
+bool
+DatabaseGlobalInit(EventLoop &loop, DatabaseListener &listener,
+ const config_param &param, Error &error)
+{
+ assert(db == nullptr);
+ assert(!db_is_open);
+
+ const char *plugin_name =
+ param.GetBlockValue("plugin", "simple");
+ is_simple = strcmp(plugin_name, "simple") == 0;
+
+ const DatabasePlugin *plugin = GetDatabasePluginByName(plugin_name);
+ if (plugin == nullptr) {
+ error.Format(db_domain,
+ "No such database plugin: %s", plugin_name);
+ return false;
+ }
+
+ db = plugin->create(loop, listener, param, error);
+ return db != nullptr;
+}
+
+void
+DatabaseGlobalDeinit(void)
+{
+ if (db_is_open)
+ db->Close();
+
+ if (db != nullptr)
+ delete db;
+}
+
+const Database *
+GetDatabase()
+{
+ assert(db == nullptr || db_is_open);
+
+ return db;
+}
+
+const Database *
+GetDatabase(Error &error)
+{
+ assert(db == nullptr || db_is_open);
+
+ if (db == nullptr)
+ error.Set(db_domain, DB_DISABLED, "No database");
+
+ return db;
+}
+
+bool
+db_is_simple(void)
+{
+ assert(db == nullptr || db_is_open);
+
+ return is_simple;
+}
+
+Directory *
+db_get_root(void)
+{
+ assert(db != nullptr);
+ assert(db_is_simple());
+
+ return ((SimpleDatabase *)db)->GetRoot();
+}
+
+Directory *
+db_get_directory(const char *name)
+{
+ if (db == nullptr)
+ return nullptr;
+
+ Directory *music_root = db_get_root();
+ if (name == nullptr)
+ return music_root;
+
+ return music_root->LookupDirectory(name);
+}
+
+bool
+db_save(Error &error)
+{
+ assert(db != nullptr);
+ assert(db_is_open);
+ assert(db_is_simple());
+
+ return ((SimpleDatabase *)db)->Save(error);
+}
+
+bool
+DatabaseGlobalOpen(Error &error)
+{
+ assert(db != nullptr);
+ assert(!db_is_open);
+
+ if (!db->Open(error))
+ return false;
+
+ db_is_open = true;
+
+ return true;
+}
+
+bool
+db_exists()
+{
+ assert(db != nullptr);
+ assert(db_is_open);
+ assert(db_is_simple());
+
+ return ((SimpleDatabase *)db)->GetUpdateStamp() > 0;
+}