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48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/*
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* Copyright (C) 2020 Kaspar Schleiser <kaspar@schleiser.de>
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* 2020 Freie Universität Berlin
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* 2020 Inria
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*
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* This file is subject to the terms and conditions of the GNU Lesser General
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* Public License v2.1. See the file LICENSE in the top level directory for more
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* details.
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*/
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/**
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* @defgroup sys_ztimer_overhead ztimer overhead utility
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* @ingroup sys_ztimer
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* @brief ztimer overhead measurement functionality
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*
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* @{
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*
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* @file
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* @brief ztimer_overhead API
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*
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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*/
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#ifndef ZTIMER_OVERHEAD_H
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#define ZTIMER_OVERHEAD_H
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#include "ztimer.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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* @brief Measure ztimer overhead
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*
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* This function can be used to measure the overhead incurred by ztimer.
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* It will configure a callback to trigger after @p base ticks, then return the
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* number of ticks that have passed, minus @p base.
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*
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* @param[in] clock ztimer clock to operate on
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* @param[in] base base interval to use
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* @return (time from ztimer_set() until callback) - base
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*/
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int32_t ztimer_overhead(ztimer_clock_t *clock, uint32_t base);
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#endif /* ZTIMER_OVERHEAD_H */
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/** @} */
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