adding system-level IO functions

ase/include/ase/cmn/io.h

@@ -0,0 +1,74 @@
+/*
+ * $Id: sysapi.h,v 1.56 2006/03/21 16:15:16 bacon Ease $
+ */
+
+#ifndef _ASE_CMN_IO_H_
+#define _ASE_CMN_IO_H_
+
+#include <ase/types.h>
+#include <ase/macros.h>
+
+/* flags for ase_open */
+enum 
+{
+	ASE_OPEN_READ      = (1 << 0),
+	ASE_OPEN_WRITE     = (1 << 1),
+	ASE_OPEN_CREATE    = (1 << 2),
+	ASE_OPEN_TRUNCATE  = (1 << 3),
+	ASE_OPEN_EXCLUSIVE = (1 << 4),
+	ASE_OPEN_APPEND    = (1 << 5),
+	ASE_OPEN_NONBLOCK  = (1 << 6)
+};
+
+/* origin for ase_seek */
+enum
+{
+	ASE_SEEK_BEGIN   = 0,
+	ASE_SEEK_CURRENT = 1,
+	ASE_SEEK_END     = 2
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+ase_hnd_t ase_open (
+	const ase_char_t* path,
+	int flag, 
+	...
+);
+
+int ase_close (
+	ase_hnd_t handle
+);
+
+ase_ssize_t ase_read (
+	ase_hnd_t handle,
+	void* buf,
+	ase_size_t sz
+);
+
+ase_ssize_t ase_write (
+	ase_hnd_t handle,
+	const void* data,
+	ase_size_t sz
+);
+
+ase_off_t ase_seek (
+	ase_hnd_t handle,
+	ase_off_t offset,
+	int origin
+);
+
+/*
+int ase_hstat (ase_hnd_t handle, ase_stat_t* buf);
+int ase_hchmod (ase_hnd_t handle, ase_mode_t mode);
+*/
+int ase_htruncate (ase_hnd_t handle, ase_off_t size);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+