Harald Eilertsen
45e6aebfbf
Just a quick app to test and demonstrate how to get run times from a specific thread on FreeBSD.
53 lines
1.3 KiB
C++
53 lines
1.3 KiB
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 "procstat_cpu_time.hpp"
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#include "helpers.hpp"
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#include <iostream>
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#include <unistd.h>
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// For procstat funcs
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <sys/user.h>
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#include <libprocstat.h>
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void procstat_cpu_time(pthread_t thread, struct timeval * utime, struct timeval * stime) {
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auto ps = procstat_open_sysctl();
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unsigned int count = 0;
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auto procinfo = procstat_getprocs(ps, KERN_PROC_PID|KERN_PROC_INC_THREAD, getpid(), &count);
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#ifndef NDEBUG
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std::cout << "[*] Received procinfo @ " << procinfo
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<< ", with " << count << " entries" << std::endl;
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#endif
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for (auto i = 0U; i < count; ++i) {
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auto tinfo = procinfo + i;
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#ifndef NDEBUG
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std::cout << "[*] " << i
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<< ": tid = " << tinfo->ki_tid
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<< ", runtime = " << tinfo->ki_runtime
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<< ", user time = " << timeval_to_long(tinfo->ki_rusage.ru_utime)
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<< ", sys time = " << timeval_to_long(tinfo->ki_rusage.ru_stime)
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<< std::endl;
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#endif
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if (tinfo->ki_tid == ktid) {
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*utime = tinfo->ki_rusage.ru_utime;
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*stime = tinfo->ki_rusage.ru_stime;
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break;
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}
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}
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procstat_freeprocs(ps, procinfo);
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}
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