locking.h

照相机功能,根据uc/os操作系统,用c程序写的一个数码相机的简单程序.

/*  locking.h

    Definitions for mode parameter of locking() function.

    Copyright (c) 1990, 1992 by Borland International
    All Rights Reserved.
*/

#if !defined(__LOCKING_H)
#define __LOCKING_H

#define LK_UNLCK  0     /* unlock file region */
#define LK_LOCK   1     /* lock file region, try for 10 seconds */
#define LK_NBLCK  2     /* lock file region, don't block */
#define LK_RLCK   3     /* same as LK_LOCK */
#define LK_NBRLCK 4     /* same as LK_NBLCK */

#endif