osal_time-h.md - Openharmony v1.0 / docs / docs-en / api / api-SmartVision-Devices - 最全华为鸿蒙分布式操作系统技术资料库，手册，指南

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osal_time-h.md

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# osal\_time.h
## **Overview**
**Related Modules:**
[OSAL](osal.md)
**Description:**
Declares the time, sleep, and delay interfaces.
**Since:**
1.0
**Version:**
1.0
## **Summary**
## Data Structures

Data Structure Name	Description
OsalTimespec	Defines time.

## Functions

Function Name	Description
OsalSleep (uint32_t sec)	void Describes thread sleep, in seconds.
OsalMSleep (uint32_t ms)	void Describes thread sleep, in milliseconds.
OsalGetTime (OsalTimespec *time)	int32_t Obtains the second and microsecond time.
OsalDiffTime (const OsalTimespec start, const OsalTimespec end, OsalTimespec *diff)	int32_t Obtains time difference.
OsalGetSysTimeMs (void)	uint64_t Obtains the system time.
OsalMDelay (uint32_t ms)	void Describes thread delay, in milliseconds.
OsalUDelay (uint32_t us)	void Describes thread delay, in microseconds.