50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
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/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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*/
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#ifndef _SYS_UNISTD_H
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#define _SYS_UNISTD_H
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#include <rtthread.h>
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#ifdef RT_USING_DFS
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#define STDIN_FILENO 0 /* standard input file descriptor */
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#define STDOUT_FILENO 1 /* standard output file descriptor */
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#define STDERR_FILENO 2 /* standard error file descriptor */
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#include <dfs_posix.h>
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#else
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#define _FREAD 0x0001 /* read enabled */
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#define _FWRITE 0x0002 /* write enabled */
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#define _FAPPEND 0x0008 /* append (writes guaranteed at the end) */
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#define _FMARK 0x0010 /* internal; mark during gc() */
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#define _FDEFER 0x0020 /* internal; defer for next gc pass */
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#define _FASYNC 0x0040 /* signal pgrp when data ready */
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#define _FSHLOCK 0x0080 /* BSD flock() shared lock present */
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#define _FEXLOCK 0x0100 /* BSD flock() exclusive lock present */
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#define _FCREAT 0x0200 /* open with file create */
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#define _FTRUNC 0x0400 /* open with truncation */
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#define _FEXCL 0x0800 /* error on open if file exists */
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#define _FNBIO 0x1000 /* non blocking I/O (sys5 style) */
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#define _FSYNC 0x2000 /* do all writes synchronously */
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#define _FNONBLOCK 0x4000 /* non blocking I/O (POSIX style) */
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#define _FNDELAY _FNONBLOCK /* non blocking I/O (4.2 style) */
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#define _FNOCTTY 0x8000 /* don't assign a ctty on this open */
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#define O_RDONLY 0 /* +1 == FREAD */
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#define O_WRONLY 1 /* +1 == FWRITE */
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#define O_RDWR 2 /* +1 == FREAD|FWRITE */
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#define O_APPEND _FAPPEND
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#define O_CREAT _FCREAT
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#define O_TRUNC _FTRUNC
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#define O_EXCL _FEXCL
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#define O_SYNC _FSYNC
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#endif
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#endif /* _SYS_UNISTD_H */
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