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/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio.h>
#include <time.h>
#include <signal.h>
#include <pthread.h>
#include <string.h>
#include <unistd.h>
void
handle(int v)
{
time_t t;
char p[32];
time(&t);
strftime(p, sizeof(p), "%T", localtime(&t));
printf("%s thread %p, val = %d, signal captured.\n",
p, pthread_self(), v);
return;
}
int
create(int seconds, int id)
{
timer_t tid;
struct sigevent se;
struct itimerspec ts, ots;
memset(&se, 0, sizeof (se));
se.sigev_notify = SIGEV_SIGNAL;
se.sigev_signo = SIGUSR1;
if (timer_create (CLOCK_REALTIME, &se, &tid) < 0)
{
perror ("timer_creat");
return -1;
}
printf("timer_create successfully = %d.\n", (int)tid);
ts.it_value.tv_sec = 3;
ts.it_value.tv_nsec = 0;
ts.it_interval.tv_sec = seconds;
ts.it_interval.tv_nsec = 0;
if (timer_settime (tid, TIMER_ABSTIME, &ts, &ots) < 0)
{
perror ("timer_settime");
return -1;
}
return 0;
}
int
main (void)
{
sigset_t mask[1];
struct sigaction act[1];
sigemptyset(mask);
sigaddset(mask, SIGUSR1);
sigprocmask(SIG_UNBLOCK,mask,NULL);
memset(act, 0, sizeof(*act));
act->sa_handler = handle;
sigaction( SIGUSR1, act, NULL );
printf("main thread is %p\n", pthread_self());
if (create (3, 1) < 0) return 1;
if (create (5, 2) < 0) return 1;
for (;;)
{
sleep (10);
}
return 0;
}
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