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_, 0, 0); 8 } 9 virtual void F() { 10 } 11 void Done() { 12 sem_post(&sem_); 13 } 14 virtual ~A() { 15 sem_wait(&sem_); 16 sem_destroy(&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); 32 obj->Done(); 33 return NULL; 34 } 35 36 void *Thread2(void *x) { 37 barrier_wait(&barrier); 38 delete obj; 39 return NULL; 40 } 41 42 int main() { 43 barrier_init(&barrier, 2); 44 pthread_t t[2]; 45 pthread_create(&t[0], NULL, Thread1, NULL); 46 pthread_create(&t[1], NULL, Thread2, NULL); 47 pthread_join(t[0], NULL); 48 pthread_join(t[1], NULL); 49 } 50 51 // CHECK: WARNING: ThreadSanitizer: data race on vptr 52
