unit-tests/test-cases/dlopen-initializer/main.c

   1 /*
   2  * Copyright (c) 2005 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 <stdio.h>  // fprintf(), NULL
  24 #include <stdlib.h> // exit(), EXIT_SUCCESS
  25 #include <dlfcn.h>
  26
  27 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
  28
  29 typedef int (*getInitCountProc)(void);
  30
  31
  32 static void trySO(const char* path)
  33 {
  34         void* handle = dlopen(path, RTLD_LAZY);
  35         if ( handle == NULL ) {
  36                 FAIL("dlopen(\"%s\") failed", path);
  37                 exit(0);
  38         }
  39
  40         getInitCountProc sym = (getInitCountProc)dlsym(handle, "getInitCount");
  41         if ( sym == NULL ) {
  42                 FAIL("dlsym(handle, \"getInitCount\") failed");
  43                 exit(0);
  44         }
  45
  46         int count = (*sym)();
  47         if ( count != 1 ) {
  48                 FAIL("initializer in %s called %d times", path, count);
  49                 exit(0);
  50         }
  51
  52 }
  53
  54
  55
  56 int main()
  57 {
  58         trySO("test1.dylib");
  59         trySO("test2.dylib");
  60         //trySO("test3.dylib");         // Mac OS X 10.4 does not automatically run _init functions
  61         PASS("dlopen-initializer");
  62         return EXIT_SUCCESS;
  63 }