input_{internal,plugin}: convert to C++

2013-01-25 22:43:01 +01:00
parent 94fffb332b
commit 49567f1f3e
19 changed files with 36 additions and 45 deletions
@@ -0,0 +1,88 @@
+/*
+ * 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_INPUT_PLUGIN_HXX
+#define MPD_INPUT_PLUGIN_HXX
+
+#include "input_stream.h"
+
+#include <stddef.h>
+#include <sys/types.h>
+
+struct config_param;
+struct input_stream;
+
+struct input_plugin {
+	const char *name;
+
+	/**
+	 * Global initialization.  This method is called when MPD starts.
+	 *
+	 * @param error_r location to store the error occurring, or
+	 * NULL to ignore errors
+	 * @return true on success, false if the plugin should be
+	 * disabled
+	 */
+	bool (*init)(const struct config_param *param, GError **error_r);
+
+	/**
+	 * Global deinitialization.  Called once before MPD shuts
+	 * down (only if init() has returned true).
+	 */
+	void (*finish)(void);
+
+	struct input_stream *(*open)(const char *uri,
+				     GMutex *mutex, GCond *cond,
+				     GError **error_r);
+	void (*close)(struct input_stream *is);
+
+	/**
+	 * Check for errors that may have occurred in the I/O thread.
+	 * May be unimplemented for synchronous plugins.
+	 *
+	 * @return false on error
+	 */
+	bool (*check)(struct input_stream *is, GError **error_r);
+
+	/**
+	 * Update the public attributes.  Call before access.  Can be
+	 * NULL if the plugin always keeps its attributes up to date.
+	 */
+	void (*update)(struct input_stream *is);
+
+	struct tag *(*tag)(struct input_stream *is);
+
+	/**
+	 * Returns true if the next read operation will not block:
+	 * either data is available, or end-of-stream has been
+	 * reached, or an error has occurred.
+	 *
+	 * If this method is unimplemented, then it is assumed that
+	 * reading will never block.
+	 */
+	bool (*available)(struct input_stream *is);
+
+	size_t (*read)(struct input_stream *is, void *ptr, size_t size,
+		       GError **error_r);
+	bool (*eof)(struct input_stream *is);
+	bool (*seek)(struct input_stream *is, goffset offset, int whence,
+		     GError **error_r);
+};
+
+#endif