1/*
2 * Copyright (c) 2007 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23#include <pthread.h>
24#include <time.h>
25#include <errno.h>
26#include <stdlib.h>
27#include <sys/time.h>
28
29#include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
30
31static pthread_mutex_t	sBarrierMutex;
32static pthread_cond_t	sBarrierFree;
33
34static volatile int sValue = 0;
35
36static void __attribute__((constructor)) myinit()
37{
38	pthread_mutex_init(&sBarrierMutex, NULL);
39	pthread_cond_init(&sBarrierFree, NULL);
40}
41
42void waitForState(int value)
43{
44	//fprintf(stderr, "waitForState(%d), currently %d\n", value, sValue);
45	pthread_mutex_lock(&sBarrierMutex);
46	while ( sValue < value ) {
47		struct timeval        tvNow;
48		struct timespec       tsTimeout;
49		gettimeofday(&tvNow, NULL);
50		TIMEVAL_TO_TIMESPEC(&tvNow, &tsTimeout);
51		tsTimeout.tv_sec += 2;	  // fail if block for 2 seconds
52		if ( pthread_cond_timedwait(&sBarrierFree, &sBarrierMutex, &tsTimeout) == ETIMEDOUT ) {
53			FAIL("dlopen-dyld-locking: lock timed out");
54			exit(0);
55		}
56	}
57	pthread_mutex_unlock(&sBarrierMutex);
58}
59
60
61void setState(int value)
62{
63	pthread_mutex_lock(&sBarrierMutex);
64	//fprintf(stderr, "setState(%d)\n", value);
65	sValue = value;
66	pthread_cond_broadcast(&sBarrierFree);
67	pthread_mutex_unlock(&sBarrierMutex);
68}
69
70
71