merged the modularization branch (credentials) back to trunk

src/libstrongswan/database/database_factory.h

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+/**
+ * @defgroup database_factory database_factory
+ * @{ @ingroup database
+ */
+
+#ifndef DATABASE_FACTORY_H_
+#define DATABASE_FACTORY_H_
+
+typedef struct database_factory_t database_factory_t;
+
+#include <database/database.h>
+
+/**
+ * Generic database construction function.
+ *
+ * @param uri			implementation specific connection URI
+ */
+typedef database_t*(*database_constructor_t)(char *uri);
+
+/**
+ * Create instances of database connections using registered constructors.
+ */
+struct database_factory_t {
+
+	/**
+	 * Create a database connection instance.
+	 *
+	 * @param uri		implementation specific connection URI
+	 * @return			database_t instance, NULL if not supported/failed
+	 */
+	database_t* (*create)(database_factory_t *this, char *uri);
+	
+	/**
+	 * Register a database constructor.
+	 *
+	 * @param create	database constructor to register
+	 */
+	void (*add_database)(database_factory_t *this, database_constructor_t create);
+	
+	/**
+	 * Unregister a previously registered database constructor.
+	 *
+	 * @param create	database constructor to unregister
+	 */
+	void (*remove_database)(database_factory_t *this, database_constructor_t create);
+	
+	/**
+     * Destroy a database_factory instance.
+     */
+    void (*destroy)(database_factory_t *this);
+};
+
+/**
+ * Create a database_factory instance.
+ */
+database_factory_t *database_factory_create();
+
+#endif /* DATABASE_FACTORY_H_ @}*/