| 1 | // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
|---|
| 2 | #include <pthread.h> |
|---|
| 3 | #include <stdio.h> |
|---|
| 4 | |
|---|
| 5 | struct A { |
|---|
| 6 | A() { |
|---|
| 7 | pthread_mutex_init(mutex: &m, mutexattr: 0); |
|---|
| 8 | pthread_cond_init(cond: &c, cond_attr: 0); |
|---|
| 9 | signaled = false; |
|---|
| 10 | } |
|---|
| 11 | virtual void F() { |
|---|
| 12 | } |
|---|
| 13 | void Done() { |
|---|
| 14 | pthread_mutex_lock(mutex: &m); |
|---|
| 15 | signaled = true; |
|---|
| 16 | pthread_cond_signal(cond: &c); |
|---|
| 17 | pthread_mutex_unlock(mutex: &m); |
|---|
| 18 | } |
|---|
| 19 | virtual ~A() { |
|---|
| 20 | } |
|---|
| 21 | pthread_mutex_t m; |
|---|
| 22 | pthread_cond_t c; |
|---|
| 23 | bool signaled; |
|---|
| 24 | }; |
|---|
| 25 | |
|---|
| 26 | struct B : A { |
|---|
| 27 | virtual void F() { |
|---|
| 28 | } |
|---|
| 29 | virtual ~B() { |
|---|
| 30 | pthread_mutex_lock(mutex: &m); |
|---|
| 31 | while (!signaled) |
|---|
| 32 | pthread_cond_wait(cond: &c, mutex: &m); |
|---|
| 33 | pthread_mutex_unlock(mutex: &m); |
|---|
| 34 | } |
|---|
| 35 | }; |
|---|
| 36 | |
|---|
| 37 | static A *obj = new B; |
|---|
| 38 | |
|---|
| 39 | void *Thread1(void *x) { |
|---|
| 40 | obj->F(); |
|---|
| 41 | obj->Done(); |
|---|
| 42 | return NULL; |
|---|
| 43 | } |
|---|
| 44 | |
|---|
| 45 | void *Thread2(void *x) { |
|---|
| 46 | delete obj; |
|---|
| 47 | return NULL; |
|---|
| 48 | } |
|---|
| 49 | |
|---|
| 50 | int main() { |
|---|
| 51 | pthread_t t[2]; |
|---|
| 52 | pthread_create(newthread: &t[0], NULL, start_routine: Thread1, NULL); |
|---|
| 53 | pthread_create(newthread: &t[1], NULL, start_routine: Thread2, NULL); |
|---|
| 54 | pthread_join(th: t[0], NULL); |
|---|
| 55 | pthread_join(th: t[1], NULL); |
|---|
| 56 | fprintf(stderr, format: "PASS\n" ); |
|---|
| 57 | } |
|---|
| 58 | // CHECK: PASS |
|---|
| 59 | // CHECK-NOT: WARNING: ThreadSanitizer: data race |
|---|
| 60 | |
|---|
