archive/*: convert to C++

src/ArchivePlugin.hxx

@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2003-2013 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.
+ */
+
+#ifndef MPD_ARCHIVE_PLUGIN_HXX
+#define MPD_ARCHIVE_PLUGIN_HXX
+
+#include <glib.h>
+
+struct input_stream;
+struct archive_file;
+
+struct archive_plugin {
+	const char *name;
+
+	/**
+	 * optional, set this to NULL if the archive plugin doesn't
+	 * have/need one this must false if there is an error and
+	 * true otherwise
+	 */
+	bool (*init)(void);
+
+	/**
+	 * optional, set this to NULL if the archive plugin doesn't
+	 * have/need one
+	 */
+	void (*finish)(void);
+
+	/**
+	 * tryes to open archive file and associates handle with archive
+	 * returns pointer to handle used is all operations with this archive
+	 * or NULL when opening fails
+	 */
+	struct archive_file *(*open)(const char *path_fs, GError **error_r);
+
+	/**
+	 * reset routine will move current read index in archive to default
+	 * position and then the filenames from archives can be read
+	 * via scan_next routine
+	 */
+	void  (*scan_reset)(struct archive_file *);
+
+	/**
+	 * the read method will return corresponding files from archive
+	 * (as pathnames) and move read index to next file. When there is no
+	 * next file it return NULL.
+	 */
+	char *(*scan_next)(struct archive_file *);
+
+	/**
+	 * Opens an input_stream of a file within the archive.
+	 *
+	 * @param path the path within the archive
+	 * @param error_r location to store the error occurring, or
+	 * NULL to ignore errors
+	 */
+	struct input_stream *(*open_stream)(struct archive_file *af,
+					    const char *path,
+					    GMutex *mutex, GCond *cond,
+					    GError **error_r);
+
+	/**
+	 * closes archive file.
+	 */
+	void (*close)(struct archive_file *);
+
+	/**
+	 * suffixes handled by this plugin.
+	 * last element in these arrays must always be a NULL
+	 */
+	const char *const*suffixes;
+};
+
+struct archive_file *
+archive_file_open(const struct archive_plugin *plugin, const char *path,
+		  GError **error_r);
+
+void
+archive_file_close(struct archive_file *file);
+
+void
+archive_file_scan_reset(struct archive_file *file);
+
+char *
+archive_file_scan_next(struct archive_file *file);
+
+struct input_stream *
+archive_file_open_stream(struct archive_file *file, const char *path,
+			 GMutex *mutex, GCond *cond,
+			 GError **error_r);
+
+#endif