ostime.h

本程序为ST公司开发的源代码

/*
 * ostime.h
 *
 * Copyright (C) STMicroelectronics Ltd. 1998
 *
 * Time handling.
 */

#ifndef __os20_time_h
#define __os20_time_h

#ifndef __osclock_t
#define __osclock_t
typedef unsigned osclock_t, clock_t;
#endif

extern osclock_t _ST_TimeoutImmediate;
extern osclock_t _ST_TimeoutInfinity;

#define TIMEOUT_IMMEDIATE (&_ST_TimeoutImmediate)
#define TIMEOUT_INFINITY  (&_ST_TimeoutInfinity)

osclock_t    time_now (void);
int          time_after (osclock_t Time1, osclock_t Time2);
osclock_t    time_minus (osclock_t Time1, osclock_t Time2);
osclock_t    time_plus (osclock_t Time1, osclock_t Time2);

unsigned     ticks_per_usec(void);
unsigned     ticks_per_msec(void);
unsigned     ticks_per_sec(void);


#endif