38 lines
1.6 KiB
C
38 lines
1.6 KiB
C
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#ifndef __OS_TIME_H_
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#define __OS_TIME_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MICROSECONDS_PER_SECOND ( 1000000LL ) /**< Microseconds per second. */
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#define NANOSECONDS_PER_SECOND ( 1000000000LL ) /**< Nanoseconds per second. */
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#define NANOSECONDS_PER_TICK ( NANOSECONDS_PER_SECOND / OS_SYSTICK_HZ ) /**< Nanoseconds per FreeRTOS tick. */
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uint64 os_jiffies(void); //系统开机后经过的 tick数
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uint32 os_seconds(void); //系统开机后经过的 秒数
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uint64 os_mseconds(void); //系统开机后经过的 毫秒数
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uint64 os_useconds(void); //系统开机后经过的 微秒数
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uint32 os_cpuloading(void);
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int clock_gettime(uint32 clk_id, struct timespec *tp);
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void os_systime(struct timespec *tm);
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int32 timespec_detal_ticks(const struct timespec *abstime, const struct timespec *curtime, uint64 *result);
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int32 timespec_to_ticks(const struct timespec *time, uint64 *result);
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void nanosec_to_timespec(int64 llSource, struct timespec *time);
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int32 timespec_add(const struct timespec *x, const struct timespec *y, struct timespec *result);
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int32 timespec_add_nanosec(const struct timespec *x, int64 llNanoseconds, struct timespec *result);
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int32 timespec_sub(const struct timespec *x, const struct timespec *y, struct timespec *result);
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int32 timespec_cmp(const struct timespec *x, const struct timespec *y);
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int32 timespec_validate(const struct timespec *time);
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uint64 os_jiffies_to_msecs(uint64 jiff); //tick数 转换为 毫秒数
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uint64 os_msecs_to_jiffies(uint64 msec); //毫秒数 转换为 tick数
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#ifdef __cplusplus
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}
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#endif
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#endif
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