ignore_unit.c

/*
 * vim: ts=8:sw=8:tw=79:noet
 *
 * Copyright (c) 2011-2012, the Locksmith authors.
 * 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 HOLDER 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 "lksmith.h"
#include "test.h"

#include <errno.h>
#include <pthread.h>
#include <semaphore.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>

static pthread_mutex_t lock1 = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t lock2 = PTHREAD_MUTEX_INITIALIZER;

int lksmith_get_ignored_frame_patterns(char *** ignored, int *num_ignored);

static int check_ignored_frame_patterns(void)
{
	char **ignored = 0;
	int num_ignored = 0;

	EXPECT_EQ(0, lksmith_get_ignored_frame_patterns(&ignored, &num_ignored));
	EXPECT_EQ(3, num_ignored);
	EXPECT_ZERO(strcmp("*ignore1*", ignored[0]));
	EXPECT_ZERO(strcmp("*ignore2*", ignored[1]));
	EXPECT_ZERO(strcmp("*ignore3*", ignored[2]));
	return 0;
}

void ignore1(void)
{
	pthread_mutex_lock(&lock2);
	pthread_mutex_lock(&lock1);
	pthread_mutex_unlock(&lock1);
	pthread_mutex_unlock(&lock2);
}

static int verify_ignored_frame_patterns_work(void)
{
	clear_recorded_errors();
	pthread_mutex_lock(&lock1);
	pthread_mutex_lock(&lock2);
	pthread_mutex_unlock(&lock2);
	pthread_mutex_unlock(&lock1);
	ignore1();
	EXPECT_EQ(num_recorded_errors(), 0);
	return 0;
}

int main(void)
{
	putenv("LKSMITH_IGNORED_FRAME_PATTERNS=*ignore3*:*ignore2*:*ignore1*");

	set_error_cb(record_error);
	EXPECT_ZERO(check_ignored_frame_patterns());
	EXPECT_ZERO(verify_ignored_frame_patterns_work());

	return EXIT_SUCCESS;
}