| 1 | // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
|---|---|
| 2 | #define _GNU_SOURCE |
| 3 | #include "../test.h" |
| 4 | #include <errno.h> |
| 5 | |
| 6 | int var; |
| 7 | |
| 8 | void *Thread(void *x) { |
| 9 | barrier_wait(barrier: &barrier); |
| 10 | var = 1; |
| 11 | return 0; |
| 12 | } |
| 13 | |
| 14 | static void check(int res) { |
| 15 | if (res != EBUSY) { |
| 16 | fprintf(stderr, format: "Unexpected result of pthread_tryjoin_np: %d\n", res); |
| 17 | exit(status: 1); |
| 18 | } |
| 19 | } |
| 20 | |
| 21 | int main() { |
| 22 | barrier_init(barrier: &barrier, count: 2); |
| 23 | pthread_t t; |
| 24 | pthread_create(newthread: &t, attr: 0, start_routine: Thread, arg: 0); |
| 25 | check(res: pthread_tryjoin_np(th: t, thread_return: 0)); |
| 26 | barrier_wait(barrier: &barrier); |
| 27 | for (;;) { |
| 28 | int res = pthread_tryjoin_np(th: t, thread_return: 0); |
| 29 | if (!res) |
| 30 | break; |
| 31 | check(res); |
| 32 | pthread_yield(); |
| 33 | } |
| 34 | var = 2; |
| 35 | fprintf(stderr, format: "PASS\n"); |
| 36 | return 0; |
| 37 | } |
| 38 | |
| 39 | // CHECK-NOT: WARNING: ThreadSanitizer: data race |
| 40 | // CHECK-NOT: WARNING: ThreadSanitizer: thread leak |
| 41 | // CHECK: PASS |
| 42 |