mirror of https://github.com/dzavalishin/oskit/
95 lines
2.3 KiB
C
Executable File
95 lines
2.3 KiB
C
Executable File
/*
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* Copyright (c) 1996, 1998, 1999, 2000 University of Utah and the Flux Group.
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* All rights reserved.
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*
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* This file is part of the Flux OSKit. The OSKit is free software, also known
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* as "open source;" you can redistribute it and/or modify it under the terms
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* of the GNU General Public License (GPL), version 2, as published by the Free
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* Software Foundation (FSF). To explore alternate licensing terms, contact
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* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
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*
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* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
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* received a copy of the GPL along with the OSKit; see the file COPYING. If
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* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
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*/
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/*
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* Resource usage and stuff.
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*/
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#include <threads/pthread_internal.h>
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#ifdef HIGHRES_THREADTIMES
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#include "machine/hirestime.h"
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#endif
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/*
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* Return accumulated runtime of thread in machine-specific CPU cycles.
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*/
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int
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oskit_pthread_cpucycles(pthread_t tid, long long *cycles)
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{
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#ifdef HIGHRES_THREADTIMES
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pthread_thread_t *pthread;
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if ((pthread = tidtothread(tid)) == NULL_THREADPTR)
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return EINVAL;
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*cycles = pthread->cpucycles;
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return 0;
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#else
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return EINVAL;
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#endif
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}
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/*
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* Quite stupid, but all I need for right now. At some point I'll
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* set this up properly. This returns milliseconds.
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*/
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oskit_u32_t
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oskit_pthread_cputime(pthread_t tid)
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{
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pthread_thread_t *pthread;
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if ((pthread = tidtothread(tid)) == NULL_THREADPTR)
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return EINVAL;
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return pthread->cputime * PTHREAD_TICK;
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}
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/*
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* Ditto! Return real time.
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*/
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oskit_u32_t
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oskit_pthread_realtime(void)
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{
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extern oskit_u32_t threads_realticks;
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return threads_realticks * PTHREAD_TICK;
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}
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/*
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* Return CPU percentage as an integer value. Good enough!
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*/
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int
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oskit_pthread_cpu_percent(void)
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{
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return CURPTHREAD()->pctcpu;
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}
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#ifdef CPU_INHERIT
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/*
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* Return the amount of time consumed by a thread and all its children.
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*/
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oskit_u32_t
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oskit_pthread_childtime(pthread_t tid)
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{
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pthread_thread_t *pthread;
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if ((pthread = tidtothread(tid)) == NULL_THREADPTR)
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return EINVAL;
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return (pthread->cputime + pthread->childtime) * PTHREAD_TICK;
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}
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#endif
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