Harald Eilertsen
45e6aebfbf
Just a quick app to test and demonstrate how to get run times from a specific thread on FreeBSD.
32 lines
719 B
C++
32 lines
719 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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#include "fast_cpu_time.hpp"
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#include "helpers.hpp"
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#include <cassert>
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namespace {
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clockid_t get_thread_clock_id(pthread_t thread) {
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clockid_t clock_id;
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auto rc = pthread_getcpuclockid(thread, &clock_id);
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assert(rc == 0);
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return clock_id;
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}
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}
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unsigned long fast_thread_cpu_time(pthread_t thread) {
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auto clock_id = get_thread_clock_id(thread);
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struct timespec time;
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auto rc = clock_gettime(clock_id, &time);
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assert(rc == 0);
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return time.tv_sec * 1000000 + time.tv_nsec;
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}
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