1 | // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
2 | #include "test.h" |
3 | #include <semaphore.h> |
4 | |
5 | struct A { |
6 | A() { |
7 | sem_init(sem: &sem_, pshared: 0, value: 0); |
8 | } |
9 | virtual void F() { |
10 | } |
11 | void Done() { |
12 | sem_post(sem: &sem_); |
13 | } |
14 | virtual ~A() { |
15 | sem_wait(sem: &sem_); |
16 | sem_destroy(sem: &sem_); |
17 | } |
18 | sem_t sem_; |
19 | }; |
20 | |
21 | struct B : A { |
22 | virtual void F() { |
23 | } |
24 | virtual ~B() { } |
25 | }; |
26 | |
27 | static A *obj = new B; |
28 | |
29 | void *Thread1(void *x) { |
30 | obj->F(); |
31 | barrier_wait(barrier: &barrier); |
32 | obj->Done(); |
33 | return NULL; |
34 | } |
35 | |
36 | void *Thread2(void *x) { |
37 | barrier_wait(barrier: &barrier); |
38 | delete obj; |
39 | return NULL; |
40 | } |
41 | |
42 | int main() { |
43 | barrier_init(barrier: &barrier, count: 2); |
44 | pthread_t t[2]; |
45 | pthread_create(newthread: &t[0], NULL, start_routine: Thread1, NULL); |
46 | pthread_create(newthread: &t[1], NULL, start_routine: Thread2, NULL); |
47 | pthread_join(th: t[0], NULL); |
48 | pthread_join(th: t[1], NULL); |
49 | } |
50 | |
51 | // CHECK: WARNING: ThreadSanitizer: data race on vptr |
52 | |