os_time.h

/*-
 * Copyright (c) 2026, The XTC Project
 * Use of this source code is governed by the ISC License.
 *
 * src/inc/os_time.h
 *      Monotonic and wall-clock time, plus a sleep primitive.
 *      Times are nanoseconds in int64_t.  See M1_CLAIMS.md, Tm1-Tm4.
 */
 
#ifndef XTC_OS_TIME_H
#define XTC_OS_TIME_H
 
#include "xtc_export.h"
 
#include <stdint.h>
 
#define XTC_NS_PER_SEC  1000000000LL
#define XTC_NS_PER_MS   1000000LL
#define XTC_NS_PER_US   1000LL
 
/*
 * PUBLIC: int __os_clock_mono __P((int64_t *));
 * PUBLIC: int __os_clock_real __P((int64_t *));
 * PUBLIC: int __os_sleep_ns __P((int64_t));
 */
XTC_API int __os_clock_mono(int64_t *out_ns);
XTC_API int __os_clock_real(int64_t *out_ns);
XTC_API int __os_sleep_ns(int64_t ns);
 
#endif /* XTC_OS_TIME_H */