merged the modularization branch (credentials) back to trunk

src/libstrongswan/fetcher/fetcher_manager.h

@@ -0,0 +1,74 @@
+/*
+ * 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 fetcher_manager fetcher_manager
+ * @{ @ingroup fetcher
+ */
+
+#ifndef FETCHER_MANAGER_H_
+#define FETCHER_MANAGER_H_
+
+typedef struct fetcher_manager_t fetcher_manager_t;
+
+#include <fetcher/fetcher.h>
+
+/**
+ * Fetches from URIs using registerd fetcher_t instances.
+ */
+struct fetcher_manager_t {
+
+	/**
+	 * Fetch data from URI into chunk.
+	 *
+	 * The variable argument list contains fetcher_option_t's, followed
+	 * by a option specific data argument.
+	 *
+	 * @param uri			URI to fetch from
+	 * @param result		chunk which receives allocated data
+	 * @param options		FETCH_END terminated fetcher_option_t arguments
+	 * @return				status indicating result of fetch
+	 */
+	status_t (*fetch)(fetcher_manager_t *this, char *url, chunk_t *response, ...);
+
+	/**
+	 * Register a fetcher implementation.
+	 *
+	 * @param constructor	fetcher constructor function
+	 * @param url			URL type this fetcher fetches, e.g. "http://"
+	 */
+	void (*add_fetcher)(fetcher_manager_t *this,
+						fetcher_constructor_t constructor, char *url);
+	
+	/**
+	 * Unregister a previously registered fetcher implementation.
+	 *
+	 * @param constructor	fetcher constructor function to unregister
+	 */
+	void (*remove_fetcher)(fetcher_manager_t *this, 
+						   fetcher_constructor_t constructor);
+	
+	/**
+     * Destroy a fetcher_manager instance.
+     */
+    void (*destroy)(fetcher_manager_t *this);
+};
+
+/**
+ * Create a fetcher_manager instance.
+ */
+fetcher_manager_t *fetcher_manager_create();
+
+#endif /* FETCHER_MANAGER_H_ @}*/