Source code of Windows XP (NT5)
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41 lines
967 B

/***
*sys/locking.h - flags for locking() function
*
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This file defines the flags for the locking() function.
* [System V]
*
* [Public]
*
****/
#if _MSC_VER > 1000
#pragma once
#endif
#ifndef _INC_LOCKING
#define _INC_LOCKING
#if !defined(_WIN32)
#error ERROR: Only Win32 target supported!
#endif
#define _LK_UNLCK 0 /* unlock the file region */
#define _LK_LOCK 1 /* lock the file region */
#define _LK_NBLCK 2 /* non-blocking lock */
#define _LK_RLCK 3 /* lock for writing */
#define _LK_NBRLCK 4 /* non-blocking lock for writing */
#if !__STDC__
/* Non-ANSI names for compatibility */
#define LK_UNLCK _LK_UNLCK
#define LK_LOCK _LK_LOCK
#define LK_NBLCK _LK_NBLCK
#define LK_RLCK _LK_RLCK
#define LK_NBRLCK _LK_NBRLCK
#endif
#endif /* _INC_LOCKING */