mirror of
https://github.com/wpilibsuite/allwpilib
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72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*----------------------------------------------------------------------------*/
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/* Copyright (c) 2015-2018 FIRST. All Rights Reserved. */
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in the root directory of */
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/* the project. */
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/*----------------------------------------------------------------------------*/
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#ifndef WPIUTIL_WPI_TIMESTAMP_H_
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#define WPIUTIL_WPI_TIMESTAMP_H_
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* The default implementation used for Now().
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* In general this is the time returned by the operating system.
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* @return Time in microseconds.
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*/
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uint64_t WPI_NowDefault(void);
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/**
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* Set the implementation used by WPI_Now().
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* The implementation must return monotonic time in microseconds to maintain
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* the contract of WPI_Now().
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* @param func Function called by WPI_Now() to return the time.
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*/
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void WPI_SetNowImpl(uint64_t (*func)(void));
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/**
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* Return a value representing the current time in microseconds.
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* The epoch is not defined.
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* @return Time in microseconds.
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*/
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uint64_t WPI_Now(void);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#ifdef __cplusplus
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namespace wpi {
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/**
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* The default implementation used for Now().
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* In general this is the time returned by the operating system.
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* @return Time in microseconds.
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*/
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uint64_t NowDefault(void);
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/**
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* Set the implementation used by Now().
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* The implementation must return monotonic time in microseconds to maintain
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* the contract of Now().
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* @param func Function called by Now() to return the time.
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*/
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void SetNowImpl(uint64_t (*func)());
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/**
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* Return a value representing the current time in microseconds.
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* This is a monotonic clock with an undefined epoch.
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* @return Time in microseconds.
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*/
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uint64_t Now(void);
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} // namespace wpi
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#endif
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#endif // WPIUTIL_WPI_TIMESTAMP_H_
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