InputStream: move typedef offset_type to Offset.hxx

Reduce header dependencies.

src/input/InputStream.hxx

@@ -21,6 +21,7 @@
 #define MPD_INPUT_STREAM_HXX
 
 #include "check.h"
+#include "Offset.hxx"
 #include "thread/Mutex.hxx"
 #include "Compiler.h"
 
@@ -35,7 +36,7 @@ struct Tag;
 
 class InputStream {
 public:
-	typedef uint64_t offset_type;
+	typedef ::offset_type offset_type;
 
 private:
 	/**

src/input/Offset.hxx

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2003-2014 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_OFFSET_HXX
+#define MPD_OFFSET_HXX
+
+#include "check.h"
+
+#include <stdint.h>
+
+/**
+ * A type for absolute offsets in a file.
+ */
+typedef uint64_t offset_type;
+
+#endif