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 | static void (A::*fn)() = &A::F; |
29 | |
30 | void *Thread1(void *x) { |
31 | (obj->*fn)(); |
32 | barrier_wait(barrier: &barrier); |
33 | obj->Done(); |
34 | return NULL; |
35 | } |
36 | |
37 | void *Thread2(void *x) { |
38 | barrier_wait(barrier: &barrier); |
39 | delete obj; |
40 | return NULL; |
41 | } |
42 | |
43 | int main() { |
44 | barrier_init(barrier: &barrier, count: 2); |
45 | pthread_t t[2]; |
46 | pthread_create(newthread: &t[0], NULL, start_routine: Thread1, NULL); |
47 | pthread_create(newthread: &t[1], NULL, start_routine: Thread2, NULL); |
48 | pthread_join(th: t[0], NULL); |
49 | pthread_join(th: t[1], NULL); |
50 | } |
51 | |
52 | // CHECK: WARNING: ThreadSanitizer: data race on vptr |
53 | |
54 | |