parent
8bf7374bcf
commit
706f324ed2
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@ -1,4 +1,4 @@
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# $NetBSD: Makefile,v 1.20 2004/07/07 21:53:10 nathanw Exp $
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# $NetBSD: Makefile,v 1.21 2004/07/27 22:01:51 yamt Exp $
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.include <bsd.own.mk>
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@ -16,8 +16,9 @@ ARCHSUBDIR= ${MACHINE_CPU}
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.if defined(ARCHSUBDIR)
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SUBDIR+= atexit barrier1 cancel2 cond1 cond2 cond3 cond4 cond5 condcancel1 \
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conddestroy1 exit1 fork mutex1 mutex2 mutex3 mutex4 name once1 once2 \
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preempt1 resolv sem sigalarm sigmask1 siglongjmp1 sigsuspend
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conddestroy1 exit1 fork kill1 mutex1 mutex2 mutex3 mutex4 name \
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once1 once2 preempt1 resolv sem sigalarm sigmask1 siglongjmp1 \
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sigsuspend
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.endif
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@ -0,0 +1,14 @@
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# $NetBSD: Makefile,v 1.1 2004/07/27 22:01:51 yamt Exp $
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WARNS=2
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PROG= kill1
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LDADD= -lpthread
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NOMAN=
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regress:
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./kill1
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.include <bsd.prog.mk>
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@ -0,0 +1,117 @@
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/* $NetBSD: kill1.c,v 1.1 2004/07/27 22:01:51 yamt Exp $ */
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/*-
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* Copyright (c)2004 YAMAMOTO Takashi,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <err.h>
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#include <pthread.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <string.h>
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#define NTHREAD 16
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struct threadinfo {
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pthread_t id;
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int gotsignal;
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} th[NTHREAD];
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pthread_t mainthread;
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void sighandler(int);
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void *f(void *);
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int main(int, char *[]);
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void
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sighandler(int signo)
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{
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pthread_t self;
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int i;
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self = pthread_self();
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if (self == mainthread || signo != SIGUSR1)
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errx(EXIT_FAILURE, "unexpected signal");
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for (i = 0; i < NTHREAD; i++)
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if (self == th[i].id)
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break;
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if (i == NTHREAD)
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errx(EXIT_FAILURE, "unknown thread");
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th[i].gotsignal++;
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}
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void *
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f(void *arg)
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{
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struct threadinfo volatile *t = arg;
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while (t->gotsignal < 1) {
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/* busy loop */
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}
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return NULL;
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}
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int
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main(int argc, char *argv[])
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{
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int ret;
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int i;
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pthread_t self;
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mainthread = pthread_self();
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if (SIG_ERR == signal(SIGUSR1, sighandler))
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err(EXIT_FAILURE, "signal");
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for (i = 0; i < NTHREAD; i++) {
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ret = pthread_create(&th[i].id, NULL, f, &th[i]);
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if (ret)
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err(EXIT_FAILURE, "pthread_create");
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}
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sched_yield();
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self = pthread_self();
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if (self != mainthread)
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errx(EXIT_FAILURE, "thread id changed");
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for (i = 0; i < NTHREAD; i++) {
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ret = pthread_kill(th[i].id, SIGUSR1);
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if (ret)
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err(EXIT_FAILURE, "pthread_kill");
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}
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for (i = 0; i < NTHREAD; i++) {
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ret = pthread_join(th[i].id, NULL);
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if (ret)
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err(EXIT_FAILURE, "pthread_join");
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}
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exit(EXIT_SUCCESS);
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}
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Loading…
Reference in New Issue