unit-tests/test-cases/image-state-change/main.c

   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
  35 static int singleMappedCount = 0;
  36 static int batchMappedCount = 0;
  37 static int singleUnMappedCount = 0;
  38 static int batchBoundCount = 0;
  39 static int singleDepsInitedCount = 0;
  40 static int singleBoundCount = 0;
  41
  42 static const char* batchMappedHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
  43 {
  44         for (uint32_t i=0; i < infoCount; ++i)
  45                 printf("batchMappedHandler(): %u/%u -> %s\n", i, infoCount, info[i].imageFilePath);
  46         if ( state != dyld_image_state_dependents_mapped ) {
  47                 FAIL("image-state-change: batchMappedHandler passed state %d", state);
  48                 exit(0);
  49         }
  50         batchMappedCount += infoCount;
  51         return NULL;
  52 }
  53
  54 static const char* batchBoundHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
  55 {
  56         for (uint32_t i=0; i < infoCount; ++i)
  57                 printf("batchBoundHandler(): %u/%u -> %s\n", i, infoCount, info[i].imageFilePath);
  58         if ( state != dyld_image_state_bound ) {
  59                 FAIL("image-state-change: batchBoundHandler passed state %d", state);
  60                 exit(0);
  61         }
  62         batchBoundCount += infoCount;
  63         return NULL;
  64 }
  65
  66 static const char* singleMappedHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
  67 {
  68         printf("singleMappedHandler(%s)\n", info[0].imageFilePath);
  69         if ( state != dyld_image_state_mapped ) {
  70                 FAIL("image-state-change: singleMappedHandler passed state %d", state);
  71                 exit(0);
  72         }
  73         if ( infoCount != 1 ) {
  74                 FAIL("image-state-change: singleMappedHandler given %d images", infoCount);
  75                 exit(0);
  76         }
  77         ++singleMappedCount;
  78         return NULL;
  79 }
  80
  81
  82 static const char* singleBoundHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
  83 {
  84         printf("singleBoundHandler(%s)\n", info[0].imageFilePath);
  85         if ( state != dyld_image_state_bound ) {
  86                 FAIL("image-state-change: singleBoundHandler passed state %d", state);
  87                 exit(0);
  88         }
  89         if ( infoCount != 1 ) {
  90                 FAIL("image-state-change: singleBoundHandler given %d images", infoCount);
  91                 exit(0);
  92         }
  93         ++singleBoundCount;
  94         return NULL;
  95 }
  96
  97
  98
  99 static const char* singleDepsInitedHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
 100 {
 101         printf("singleDepsInitedHandler(%s)\n", info[0].imageFilePath);
 102         if ( state != dyld_image_state_dependents_initialized ) {
 103                 FAIL("image-state-change: singleDepsInitedHandler passed state %d", state);
 104                 exit(0);
 105         }
 106         if ( infoCount != 1 ) {
 107                 FAIL("image-state-change: singleDepsInitedHandler given %d images", infoCount);
 108                 exit(0);
 109         }
 110         ++singleDepsInitedCount;
 111         return NULL;
 112 }
 113
 114
 115
 116 static const char* singleUnmappedHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
 117 {
 118         printf("singleUnmappedHandler(%s)\n", info[0].imageFilePath);
 119         if ( state != dyld_image_state_terminated ) {
 120                 FAIL("image-state-change: singleUnmappedHandler passed state %d", state);
 121                 exit(0);
 122         }
 123         if ( infoCount != 1 ) {
 124                 FAIL("image-state-change: singleUnmappedHandler given %d images", infoCount);
 125                 exit(0);
 126         }
 127         ++singleUnMappedCount;
 128         return NULL;
 129 }
 130
 131 static void loadAndUnLoad()
 132 {
 133         void* handle = dlopen("foo.bundle", RTLD_LAZY);
 134         if ( handle == NULL ) {
 135                 FAIL("image-state-change: dlopen(foo.bundle) failed: %s", dlerror());
 136                 exit(0);
 137         }
 138
 139         int result = dlclose(handle);
 140         if ( result != 0 ) {
 141                 FAIL("image-state-change: dlclose(handle) returned %d, %s", result, dlerror());
 142                 exit(0);
 143         }
 144 }
 145
 146
 147 int main(int argc, const char* argv[])
 148 {
 149         // tell dyld we want to know when images are mapped
 150         dyld_register_image_state_change_handler(dyld_image_state_dependents_mapped, true, batchMappedHandler);
 151         dyld_register_image_state_change_handler(dyld_image_state_mapped, false, singleMappedHandler);
 152         dyld_register_image_state_change_handler(dyld_image_state_bound, true, batchBoundHandler);
 153         dyld_register_image_state_change_handler(dyld_image_state_bound, false, singleBoundHandler);
 154         dyld_register_image_state_change_handler(dyld_image_state_dependents_initialized, false, singleDepsInitedHandler);
 155         dyld_register_image_state_change_handler(dyld_image_state_terminated, false, singleUnmappedHandler);
 156
 157         // with batch mode we get notified of existing images, but not with single mode, so re-sync counts
 158         batchMappedCount=0;
 159
 160         loadAndUnLoad();
 161
 162         loadAndUnLoad();
 163
 164         if ( (singleMappedCount == batchMappedCount) && (singleMappedCount == singleUnMappedCount) )
 165                 PASS("image-state-change");
 166         else
 167                 FAIL("image-state-change: batch count=%d, single count=%d", batchMappedCount, singleMappedCount);
 168
 169         return EXIT_SUCCESS;
 170 }