/*    * 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 timer_settime() is using an absolute clock and the * time has already taken place when the test is running that * timer_settime() succeeds and the expiration notification is made. * * Test for a variety of times which keep getting SUBTRACTAMOUNT * of time away from the time at the start of the test. * Note:  This test was made in response to a bug seen where timers *        would return -1 intermittently on time values generally *        > 9000 seconds before the current time. */#include <time.h>#include <signal.h>#include "compat.h"#define PASS 0#define FAIL 1#define UNRESOLVED 2#define SIGTOTEST SIGALRM#define LONGSLEEPTIME 10#define NUMTESTS 30#define SUBTRACTAMOUNT 1000int fails = 0, passes = 0;timer_t tid;pthread_t th;void handler(int signo){	printf("Caught signal\n");	passes += 1;}void *th_code(void *arg){	struct sigaction act;	struct itimerspec its;	struct timespec ts;	int flags = 0;	int i;	act.sa_handler=handler;	act.sa_flags=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 (clock_gettime(CLOCK_REALTIME, &ts) != 0) {		perror("clock_gettime() did not return success\n");		return UNRESOLVED;	}	its.it_interval.tv_sec = 0;	its.it_interval.tv_nsec = 0;	its.it_value.tv_sec = ts.tv_sec;	its.it_value.tv_nsec = 0;	flags |= TIMER_ABSTIME;	for (i = 0; i < NUMTESTS; i++) {		if (timer_settime(tid, flags, &its, NULL) != 0) {			printf("failure at %d\n",					(int) its.it_value.tv_sec);		} else {			sleep(LONGSLEEPTIME);		}		its.it_value.tv_sec -= SUBTRACTAMOUNT;	}	fails = NUMTESTS-passes;	printf("passes %d, fails %d\n", passes, fails);	if (fails > 0) {		return FAIL;	} else {		return PASS;	}	return UNRESOLVED;}int init_module(void){  struct sigevent ev;  int err=0;    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);}