Harald Eilertsen
45e6aebfbf
Just a quick app to test and demonstrate how to get run times from a specific thread on FreeBSD.
26 lines
765 B
C++
26 lines
765 B
C++
/*
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* SPDX-FileCopyrightText: 2025 Eilertsens Kodeknekkeri
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* SPDX-FileCopyrightText: 2025 The FreeBSD Foundation
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* SPDX-FileContributor: Harald Eilertsen <haraldei@anduin.net>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#ifndef __FAST_CPU_TIME_HPP
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#define __FAST_CPU_TIME_HPP
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#include <pthread.h>
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/**
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* Return the combined (sys+user) runtime of the given thread.
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*
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* This uses the clock_gettime(2) system call with the clock id obtained from
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* the given thread via pthread_getcpuclockid(2).
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*
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* It gives the total runtime of the thread in nanoseconds. This is presumably
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* the faster way to get the runtime of a specific thread, but we do not get
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* the user and sys times separate.
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*/
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unsigned long fast_thread_cpu_time(pthread_t thread);
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#endif
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