1/*
2 * Copyright (c) 2006 Apple Computer, 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 <stdbool.h>  // fprintf(), NULL
24#include <stdio.h>  // fprintf(), NULL
25#include <stdlib.h> // exit(), EXIT_SUCCESS
26#include <stdbool.h>
27#include <mach-o/dyld.h>
28#include <mach-o/dyld_priv.h>
29#include <dlfcn.h>
30
31#include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
32
33
34
35static int singleMappedCount = 0;
36static int batchMappedCount = 0;
37static int singleUnMappedCount = 0;
38
39
40static const char* batchMappedHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
41{
42	for (uint32_t i=0; i < infoCount; ++i)
43		printf("batchMappedHandler(): %u/%u -> %s\n", i, infoCount, info[i].imageFilePath);
44	if ( state != dyld_image_state_dependents_mapped ) {
45		FAIL("image-state-change: batchMappedHandler passed state %d", state);
46		exit(0);
47	}
48	batchMappedCount += infoCount;
49	return NULL;
50}
51
52static const char* singleMappedHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
53{
54	printf("singleMappedHandler(%s)\n", info[0].imageFilePath);
55	if ( state != dyld_image_state_mapped ) {
56		FAIL("image-state-change: singleMappedHandler passed state %d", state);
57		exit(0);
58	}
59	if ( infoCount != 1 ) {
60		FAIL("image-state-change: singleMappedHandler given %d images", infoCount);
61		exit(0);
62	}
63	++singleMappedCount;
64	return NULL;
65}
66
67static const char* singleUnmappedHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
68{
69	printf("singleUnmappedHandler(%s)\n", info[0].imageFilePath);
70	if ( state != dyld_image_state_terminated ) {
71		FAIL("image-state-change: singleUnmappedHandler passed state %d", state);
72		exit(0);
73	}
74	if ( infoCount != 1 ) {
75		FAIL("image-state-change: singleUnmappedHandler given %d images", infoCount);
76		exit(0);
77	}
78	++singleUnMappedCount;
79	return NULL;
80}
81
82static void loadAndUnLoad()
83{
84	void* handle = dlopen("foo.bundle", RTLD_LAZY);
85	if ( handle == NULL ) {
86		FAIL("image-state-change: dlopen(foo.bundle) failed: %s", dlerror());
87		exit(0);
88	}
89
90	int result = dlclose(handle);
91	if ( result != 0 ) {
92		FAIL("image-state-change: dlclose(handle) returned %d, %s", result, dlerror());
93		exit(0);
94	}
95}
96
97
98int main(int argc, const char* argv[])
99{
100	// tell dyld we want to know when images are mapped
101	dyld_register_image_state_change_handler(dyld_image_state_dependents_mapped, true, batchMappedHandler);
102	dyld_register_image_state_change_handler(dyld_image_state_mapped, false, singleMappedHandler);
103	dyld_register_image_state_change_handler(dyld_image_state_terminated, false, singleUnmappedHandler);
104	// with batch mode we get notified of existing images, but not with single mode, so re-sync counts
105	batchMappedCount=0;
106
107	loadAndUnLoad();
108
109	loadAndUnLoad();
110
111	if ( (singleMappedCount == batchMappedCount) && (singleMappedCount == singleUnMappedCount) )
112		PASS("image-state-change");
113	else
114		FAIL("image-state-change: batch count=%d, single count=%d", batchMappedCount, singleMappedCount);
115
116	return EXIT_SUCCESS;
117}
118