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