input_stream: forward-declare the struct

Hide the definition from C code, to prepare the transition to C++.

1 files changed, 102 insertions, 0 deletions

diff --git a/src/InputStream.hxx b/src/InputStream.hxx
new file mode 100644
index 00000000..8a82888f
--- /dev/null
+++ b/src/InputStream.hxx
@@ -0,0 +1,102 @@
+/*
+ * 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_STREAM_HXX
+#define MPD_INPUT_STREAM_HXX
+
+#include "input_stream.h"
+#include "check.h"
+#include "gcc.h"
+
+#include <glib.h>
+
+struct input_stream {
+	/**
+	 * the plugin which implements this input stream
+	 */
+	const struct input_plugin *plugin;
+
+	/**
+	 * The absolute URI which was used to open this stream.  May
+	 * be NULL if this is unknown.
+	 */
+	char *uri;
+
+	/**
+	 * A mutex that protects the mutable attributes of this object
+	 * and its implementation.  It must be locked before calling
+	 * any of the public methods.
+	 *
+	 * This object is allocated by the client, and the client is
+	 * responsible for freeing it.
+	 */
+	GMutex *mutex;
+
+	/**
+	 * A cond that gets signalled when the state of this object
+	 * changes from the I/O thread.  The client of this object may
+	 * wait on it.  Optional, may be NULL.
+	 *
+	 * This object is allocated by the client, and the client is
+	 * responsible for freeing it.
+	 */
+	GCond *cond;
+
+	/**
+	 * indicates whether the stream is ready for reading and
+	 * whether the other attributes in this struct are valid
+	 */
+	bool ready;
+
+	/**
+	 * if true, then the stream is fully seekable
+	 */
+	bool seekable;
+
+	/**
+	 * the size of the resource, or -1 if unknown
+	 */
+	goffset size;
+
+	/**
+	 * the current offset within the stream
+	 */
+	goffset offset;
+
+	/**
+	 * the MIME content type of the resource, or NULL if unknown
+	 */
+	char *mime;
+};
+
+gcc_nonnull(1)
+static inline void
+input_stream_lock(struct input_stream *is)
+{
+	g_mutex_lock(is->mutex);
+}
+
+gcc_nonnull(1)
+static inline void
+input_stream_unlock(struct input_stream *is)
+{
+	g_mutex_unlock(is->mutex);
+}
+
+#endif