?? 3-1.c
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/* * Copyright (c) 2002, Intel Corporation. All rights reserved. * Created by: julie.n.fleischer REMOVE-THIS AT intel DOT com * This file is licensed under the GPL license. For the full content * of this license, see the COPYING file at the top level of this * source tree. * Test that if value.it_value = 0, the timer is disarmed. * Steps: * 1. Set up sigevent structure to send signal SIGTOTEST on timer * expiration. * 2. Set up sigaction structure to catch signal SIGTOTEST on timer * expiration * 3. Create timer using timer_create(). * 4. Activate timer using timer_settime() and then sleep. * 5. Fail if signal handler is called. * 6. If signal handler is not called, then PASS. * * For this test, signal SIGTOTEST will be used, clock CLOCK_REALTIME * will be used. */#include <time.h>#include <signal.h>#include <unistd.h>#include "compat.h"#define PASS 0#define FAIL 1#define UNRESOLVED 2#define SIGTOTEST SIGALRM#define SLEEPDELTA 3timer_t tid;pthread_t th;void handler(int signo){ printf("Incorrectly in signal handler\n"); printf("Test FAILED\n"); exit(FAIL);}void *th_code(void *arg){ struct sigaction act; struct itimerspec its; struct timespec ts, tsleft; act.sa_handler=handler; act.sa_flags=0; its.it_interval.tv_sec = 0; its.it_interval.tv_nsec = 0; /* * value.it_value = 0 */ its.it_value.tv_sec = 0; its.it_value.tv_nsec = 0; ts.tv_sec=SLEEPDELTA; ts.tv_nsec=0; /* if (sigemptyset(&act.sa_mask) == -1) { perror("Error calling sigemptyset\n"); return UNRESOLVED; } */ if (sigaction(SIGTOTEST, &act, 0) == -1) { perror("Error calling sigaction\n"); return UNRESOLVED; } if (timer_settime(tid, 0, &its, NULL) != 0) { perror("timer_settime() did not return success\n"); return UNRESOLVED; } if (nanosleep(&ts, &tsleft) == -1) { printf("nanosleep() interrupted\n"); printf("Test FAILED\n"); return FAIL; } printf("Test PASSED\n"); return PASS;}int init_module(void){ int err; struct sigevent ev; ev.sigev_notify = SIGEV_SIGNAL; ev.sigev_signo = SIGTOTEST; if (timer_create(CLOCK_REALTIME, &ev, &tid) != 0) { perror("timer_create() did not return success\n"); return UNRESOLVED; } err=pthread_create(&th,NULL,th_code,(void *) 0); return err;}void cleanup_module(void){ timer_delete(tid); pthread_delete_np(th);}
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