fcntl.h
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上传日期:2013-04-11
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操作系统开发
开发平台:
Visual C++
- /***
- *fcntl.h - file control options used by open()
- *
- * Copyright (c) 1985-1990, Microsoft Corporation. All rights reserved.
- *
- *Purpose:
- * This file defines constants for the file control options used
- * by the open() function.
- * [System V]
- *
- ****/
- #define O_RDONLY 0x0000 /* open for reading only */
- #define O_WRONLY 0x0001 /* open for writing only */
- #define O_RDWR 0x0002 /* open for reading and writing */
- #define O_APPEND 0x0008 /* writes done at eof */
- #define O_CREAT 0x0100 /* create and open file */
- #define O_TRUNC 0x0200 /* open and truncate */
- #define O_EXCL 0x0400 /* open only if file doesn't already exist */
- /* O_TEXT files have <cr><lf> sequences translated to <lf> on read()'s,
- ** and <lf> sequences translated to <cr><lf> on write()'s
- */
- #define O_TEXT 0x4000 /* file mode is text (translated) */
- #define O_BINARY 0x8000 /* file mode is binary (untranslated) */
- /* macro to translate the C 2.0 name used to force binary mode for files */
- #define O_RAW O_BINARY
- /* Open handle inherit bit */
- #define O_NOINHERIT 0x0080 /* child process doesn't inherit file */