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#include <pthread.h>
#include <semaphore.h>
#include <stdio.h>
struct A {
A() {
sem_init(&sem_, 0, 0);
}
virtual void F() {
}
void Done() {
sem_post(&sem_);
}
virtual ~A() {
}
sem_t sem_;
};
struct B : A {
virtual void F() {
}
virtual ~B() {
sem_wait(&sem_);
sem_destroy(&sem_);
}
};
static A *obj = new B;
void *Thread1(void *x) {
obj->F();
obj->Done();
return NULL;
}
void *Thread2(void *x) {
delete obj;
return NULL;
}
int main() {
pthread_t t[2];
pthread_create(&t[0], NULL, Thread1, NULL);
pthread_create(&t[1], NULL, Thread2, NULL);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
fprintf(stderr, "PASS\n");
}
// CHECK: PASS
// CHECK-NOT: WARNING: ThreadSanitizer: data race
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