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1 | /* |
2 | * Copyright (c) 2010 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 <stdio.h> // fprintf(), NULL | |
24 | #include <stdlib.h> // exit(), EXIT_SUCCESS | |
25 | #include <string.h> | |
26 | #include <dlfcn.h> | |
27 | #include <pthread.h> | |
28 | ||
29 | #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL() | |
30 | ||
31 | ||
32 | void* h1 = NULL; | |
33 | void* h2 = NULL; | |
34 | ||
35 | static void* work(void* ignore) | |
36 | { | |
37 | for (int i=0; i < 10000; ++i) { | |
38 | h1 = dlopen("libfoo1.dylib", 0); | |
39 | if ( h1 == NULL ) { | |
40 | FAIL("dlopen failed: %s", dlerror()); | |
41 | exit(0); | |
42 | } | |
43 | dlclose(h2); | |
44 | h2 = dlopen("libfoo2.dylib", 0); | |
45 | if ( h2 == NULL ) { | |
46 | FAIL("dlopen failed: %s", dlerror()); | |
47 | exit(0); | |
48 | } | |
49 | dlclose(h1); | |
50 | } | |
51 | ||
52 | //fprintf(stderr, "done with foos\n"); | |
53 | return NULL; | |
54 | } | |
55 | ||
56 | ||
57 | int main() | |
58 | { | |
59 | h2 = dlopen("libfoo2.dylib", 0); | |
60 | if ( h2 == NULL ) { | |
61 | FAIL("dlopen failed: %s", dlerror()); | |
62 | exit(0); | |
63 | } | |
64 | ||
65 | // other thread dlopens and closes libfoo.dylib 500 times | |
66 | pthread_t other; | |
67 | if ( pthread_create(&other, NULL, work, NULL) != 0 ) { | |
68 | FAIL("pthread_create failed"); | |
69 | exit(0); | |
70 | } | |
71 | ||
72 | // this thread looks up a symbol 10,000 times | |
73 | for (int i=0; i < 15000; ++i) { | |
74 | void* handle = dlopen("libclient.dylib", 0); | |
75 | if ( handle == NULL ) { | |
76 | FAIL("dlopen failed: %s", dlerror()); | |
77 | exit(0); | |
78 | } | |
79 | typedef void (*proc_t)(); | |
80 | proc_t proc = dlsym(handle, "doit"); | |
81 | if ( proc == NULL ) { | |
82 | FAIL("dlsym failed: %s", dlerror()); | |
83 | exit(0); | |
84 | } | |
85 | (*proc)(); | |
86 | dlclose(handle); | |
87 | } | |
88 | //fprintf(stderr, "done with libclient\n"); | |
89 | ||
90 | void* result; | |
91 | pthread_join(other, &result); | |
92 | ||
93 | PASS("threaded-flat-lookup"); | |
94 | return 0; | |
95 | } |