uid.c

来自「一个简单的小型操作系统」· C语言 代码 · 共 46 行

/*****************************************************************************
 *
 * Module       : uid.c
 * Description  : Unique identifier module.
 * OS           : SLOS 0.09
 * Platform     : generic
 * History      :
 *
 * December 2nd 2001 Andrew N. Sloss
 * - started creating a simple UID function that increments
 *
 *****************************************************************************/

/*****************************************************************************
 * STATICS
 *****************************************************************************/

unsigned int new_uid = 1;

#ifndef UID
#define UID	int
#endif

/*****************************************************************************
 * ROUTINES
 *****************************************************************************/

/* -- uid_generate ------------------------------------------------------------
 *
 * Description  : generates a unique identifier
 * 
 * Parameter    : none...
 * Return       : return UID
 * Notes        :
 *
 *   increment UID 
 *
 */

UID uid_generate(void) 
{
return ++new_uid;
}