Working

bertos/struct/kfile_mem.h

@@ -0,0 +1,81 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos 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 St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2009 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief KFile interface over a memory buffer.
+ *
+ * Convenient way to access a memory region using the KFile interface.
+ *
+ *
+ * \author Francesco Sacchi <batt@develer.com>
+ *
+ * $WIZ$ module_name = "kfilemem"
+ * $WIZ$ module_depends = "kfile"
+ */
+
+#ifndef STRUCT_KFILE_MEM
+#define STRUCT_KFILE_MEM
+
+#include <io/kfile.h>
+
+/**
+ * Context for KFile over memory buffer.
+ */
+typedef struct KFileMem
+{
+	KFile fd;  ///< KFile base class
+	void *mem; ///< Pointer to the memory buffer used.
+} KFileMem;
+
+/**
+ * ID for KFile Mem.
+ */
+#define KFT_KFILEMEM MAKE_ID('M', 'E', 'M', '0')
+
+/**
+ * Convert + ASSERT from generic KFile to KFileMem.
+ */
+INLINE KFileMem * KFILEMEM_CAST(KFile *fd)
+{
+	ASSERT(fd->_type == KFT_KFILEMEM);
+	return (KFileMem *)fd;
+}
+
+/**
+ * Initialize KFileMem struct.
+ *
+ * \param km Interface to initialize.
+ * \param mem Pointer to the memory buffer to operate on.
+ * \param len Size of the buffer
+ */
+void kfilemem_init(KFileMem *km, void *mem, size_t len);
+
+#endif /* STRUCT_KFILE_MEM */