nsprpub/pr/tests/rwlockrank.c@44a2da4a2ab2 (annotated)
nsprpub/pr/tests/rwlockrank.c
Fri, 16 Jan 2015 04:50:19 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 04:50:19 +0100
- branch
- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
- permissions
- -rw-r--r--
Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | /* |
| michael@0 | 6 | * RWLock rank tests |
| michael@0 | 7 | */ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "nspr.h" |
| michael@0 | 10 | #include "plgetopt.h" |
| michael@0 | 11 | |
| michael@0 | 12 | static int _debug_on; |
| michael@0 | 13 | static PRRWLock *rwlock0; |
| michael@0 | 14 | static PRRWLock *rwlock1; |
| michael@0 | 15 | static PRRWLock *rwlock2; |
| michael@0 | 16 | |
| michael@0 | 17 | static void rwtest(void *args) |
| michael@0 | 18 | { |
| michael@0 | 19 | PR_RWLock_Rlock(rwlock1); |
| michael@0 | 20 | PR_RWLock_Unlock(rwlock1); |
| michael@0 | 21 | |
| michael@0 | 22 | PR_RWLock_Rlock(rwlock1); |
| michael@0 | 23 | PR_RWLock_Unlock(rwlock1); |
| michael@0 | 24 | |
| michael@0 | 25 | // Test correct lock rank. |
| michael@0 | 26 | PR_RWLock_Rlock(rwlock1); |
| michael@0 | 27 | PR_RWLock_Rlock(rwlock2); |
| michael@0 | 28 | PR_RWLock_Unlock(rwlock2); |
| michael@0 | 29 | PR_RWLock_Unlock(rwlock1); |
| michael@0 | 30 | |
| michael@0 | 31 | PR_RWLock_Rlock(rwlock1); |
| michael@0 | 32 | PR_RWLock_Rlock(rwlock2); |
| michael@0 | 33 | PR_RWLock_Unlock(rwlock1); |
| michael@0 | 34 | PR_RWLock_Unlock(rwlock2); |
| michael@0 | 35 | |
| michael@0 | 36 | PR_RWLock_Rlock(rwlock1); |
| michael@0 | 37 | PR_RWLock_Rlock(rwlock0); |
| michael@0 | 38 | PR_RWLock_Rlock(rwlock2); |
| michael@0 | 39 | PR_RWLock_Unlock(rwlock2); |
| michael@0 | 40 | PR_RWLock_Unlock(rwlock0); |
| michael@0 | 41 | PR_RWLock_Unlock(rwlock1); |
| michael@0 | 42 | |
| michael@0 | 43 | #if 0 |
| michael@0 | 44 | // Test incorrect lock rank. |
| michael@0 | 45 | PR_RWLock_Rlock(rwlock2); |
| michael@0 | 46 | PR_RWLock_Rlock(rwlock1); |
| michael@0 | 47 | PR_RWLock_Unlock(rwlock1); |
| michael@0 | 48 | PR_RWLock_Unlock(rwlock2); |
| michael@0 | 49 | |
| michael@0 | 50 | PR_RWLock_Rlock(rwlock2); |
| michael@0 | 51 | PR_RWLock_Rlock(rwlock0); |
| michael@0 | 52 | PR_RWLock_Rlock(rwlock1); |
| michael@0 | 53 | PR_RWLock_Unlock(rwlock1); |
| michael@0 | 54 | PR_RWLock_Unlock(rwlock0); |
| michael@0 | 55 | PR_RWLock_Unlock(rwlock2); |
| michael@0 | 56 | #endif |
| michael@0 | 57 | } |
| michael@0 | 58 | |
| michael@0 | 59 | int main(int argc, char **argv) |
| michael@0 | 60 | { |
| michael@0 | 61 | PRStatus rc; |
| michael@0 | 62 | PRThread *thread; |
| michael@0 | 63 | PLOptStatus os; |
| michael@0 | 64 | PLOptState *opt = PL_CreateOptState(argc, argv, "d"); |
| michael@0 | 65 | |
| michael@0 | 66 | while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) { |
| michael@0 | 67 | if (PL_OPT_BAD == os) continue; |
| michael@0 | 68 | switch (opt->option) { |
| michael@0 | 69 | case 'd': /* debug mode */ |
| michael@0 | 70 | _debug_on = 1; |
| michael@0 | 71 | break; |
| michael@0 | 72 | default: |
| michael@0 | 73 | break; |
| michael@0 | 74 | } |
| michael@0 | 75 | } |
| michael@0 | 76 | PL_DestroyOptState(opt); |
| michael@0 | 77 | |
| michael@0 | 78 | rwlock0 = PR_NewRWLock(PR_RWLOCK_RANK_NONE, "Lock 0"); |
| michael@0 | 79 | if (rwlock0 == NULL) { |
| michael@0 | 80 | fprintf(stderr, "PR_NewRWLock failed - error %d\n", |
| michael@0 | 81 | (int)PR_GetError()); |
| michael@0 | 82 | return 1; |
| michael@0 | 83 | } |
| michael@0 | 84 | rwlock1 = PR_NewRWLock(1, "Lock 1"); |
| michael@0 | 85 | if (rwlock1 == NULL) { |
| michael@0 | 86 | fprintf(stderr, "PR_NewRWLock failed - error %d\n", |
| michael@0 | 87 | (int)PR_GetError()); |
| michael@0 | 88 | return 1; |
| michael@0 | 89 | } |
| michael@0 | 90 | rwlock2 = PR_NewRWLock(2, "Lock 2"); |
| michael@0 | 91 | if (rwlock2 == NULL) { |
| michael@0 | 92 | fprintf(stderr, "PR_NewRWLock failed - error %d\n", |
| michael@0 | 93 | (int)PR_GetError()); |
| michael@0 | 94 | return 1; |
| michael@0 | 95 | } |
| michael@0 | 96 | |
| michael@0 | 97 | thread = PR_CreateThread(PR_USER_THREAD, rwtest, NULL, PR_PRIORITY_NORMAL, |
| michael@0 | 98 | PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); |
| michael@0 | 99 | if (thread == NULL) { |
| michael@0 | 100 | fprintf(stderr, "PR_CreateThread failed - error %d\n", |
| michael@0 | 101 | (int)PR_GetError()); |
| michael@0 | 102 | PR_ProcessExit(2); |
| michael@0 | 103 | } |
| michael@0 | 104 | if (_debug_on) { |
| michael@0 | 105 | printf("%s: created thread = %p\n", argv[0], thread); |
| michael@0 | 106 | } |
| michael@0 | 107 | |
| michael@0 | 108 | rc = PR_JoinThread(thread); |
| michael@0 | 109 | PR_ASSERT(rc == PR_SUCCESS); |
| michael@0 | 110 | |
| michael@0 | 111 | PR_DestroyRWLock(rwlock0); |
| michael@0 | 112 | rwlock0 = NULL; |
| michael@0 | 113 | PR_DestroyRWLock(rwlock1); |
| michael@0 | 114 | rwlock1 = NULL; |
| michael@0 | 115 | PR_DestroyRWLock(rwlock2); |
| michael@0 | 116 | rwlock2 = NULL; |
| michael@0 | 117 | |
| michael@0 | 118 | printf("PASS\n"); |
| michael@0 | 119 | return 0; |
| michael@0 | 120 | } |
