/*

* Copyright (c) 2008-2011 Apple Inc. All rights reserved.

*

* @APPLE_APACHE_LICENSE_HEADER_START@

*

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*

* @APPLE_APACHE_LICENSE_HEADER_END@

*/

#include <config/config.h>

#include <dispatch/dispatch.h>

#include <stdio.h>

#include <unistd.h>

#include <stdlib.h>

#include <assert.h>

#include <bsdtests.h>

#include <Block.h>

#include "dispatch_test.h"

void

done(void *arg __attribute__((unused)))

{

sleep(1);

test_stop();

}

void

test_after(void)

{

__block dispatch_time_t time_a_min, time_a, time_a_max;

__block dispatch_time_t time_b_min, time_b, time_b_max;

__block dispatch_time_t time_c_min, time_c, time_c_max;

dispatch_test_start("Dispatch After");

dispatch_async(dispatch_get_main_queue(), ^{

time_a_min = dispatch_time(0, 5.5*NSEC_PER_SEC);

time_a = dispatch_time(0, 6*NSEC_PER_SEC);

time_a_max = dispatch_time(0, 6.5*NSEC_PER_SEC);

dispatch_after(time_a, dispatch_get_main_queue(), ^{

dispatch_time_t now_a = dispatch_time(0, 0);

test_long_less_than("can't finish faster than 5.5s", 0, now_a - time_a_min);

test_long_less_than("must finish faster than 6.5s", 0, time_a_max - now_a);

time_b_min = dispatch_time(0, 1.5*NSEC_PER_SEC);

time_b = dispatch_time(0, 2*NSEC_PER_SEC);

time_b_max = dispatch_time(0, 2.5*NSEC_PER_SEC);

dispatch_after(time_b, dispatch_get_main_queue(), ^{

dispatch_time_t now_b = dispatch_time(0, 0);

test_long_less_than("can't finish faster than 1.5s", 0, now_b - time_b_min);

test_long_less_than("must finish faster than 2.5s", 0, time_b_max - now_b);

time_c_min = dispatch_time(0, 0*NSEC_PER_SEC);

time_c = dispatch_time(0, 0*NSEC_PER_SEC);

time_c_max = dispatch_time(0, .5*NSEC_PER_SEC);

dispatch_after(time_c, dispatch_get_main_queue(), ^{

dispatch_time_t now_c = dispatch_time(0, 0);

test_long_less_than("can't finish faster than 0s", 0, now_c - time_c_min);

test_long_less_than("must finish faster than .5s", 0, time_c_max - now_c);

dispatch_async_f(dispatch_get_main_queue(), NULL, done);

});

});

});

});

}

int

main(void)

{

test_after();

dispatch_main();

return 1;

}