12-1.c

最新rtlinux内核源码

/*   
 * 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 timer_settime() sets errno = EINVAL if no timers have been
 * created yet.
 */

#include <time.h>
#include <errno.h>
#include "compat.h"

#define PASS 0
#define FAIL 1
#define UNRESOLVED 2

// RTLinux doesn't provide memory protection. Simply ensure to pass a valid memory position.
#define BOGUSTID (9999 + PAGE_OFFSET)

void *th_code(void *arg)
{
	timer_t tid;
	struct itimerspec its;

	tid = BOGUSTID;
	its.it_interval.tv_sec = 0; its.it_interval.tv_nsec = 0;
	its.it_value.tv_sec = 0; its.it_value.tv_nsec = 0;

	if (timer_settime(tid, 0, &its, NULL) == -1) {
		if (EINVAL == errno) {
			printf("Test PASSED\n");
			return PASS;
		} else {
			printf("returned -1, but errno not set\n");
			return FAIL;
		}
	} else {
		printf("timer_settime() did not return failure\n");
		return UNRESOLVED;
	}

	return UNRESOLVED;
}

pthread_t th;

int init_module(void)
{
  int err;
  
  err=pthread_create(&th,NULL,th_code,0);
  return err;

}

void cleanup_module(void)
{
  pthread_delete_np(th);
}