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150
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1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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2 #include "test.h"
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3 #include <semaphore.h>
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4
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5 struct A {
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6 A() {
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7 sem_init(&sem_, 0, 0);
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8 }
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9 virtual void F() {
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10 }
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11 void Done() {
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12 sem_post(&sem_);
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13 }
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14 virtual ~A() {
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15 sem_wait(&sem_);
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16 sem_destroy(&sem_);
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17 }
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18 sem_t sem_;
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19 };
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20
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21 struct B : A {
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22 virtual void F() {
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23 }
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24 virtual ~B() { }
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25 };
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26
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27 static A *obj = new B;
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28 static void (A::*fn)() = &A::F;
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29
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30 void *Thread1(void *x) {
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31 (obj->*fn)();
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32 barrier_wait(&barrier);
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33 obj->Done();
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34 return NULL;
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35 }
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36
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37 void *Thread2(void *x) {
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38 barrier_wait(&barrier);
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39 delete obj;
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40 return NULL;
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41 }
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42
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43 int main() {
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44 barrier_init(&barrier, 2);
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45 pthread_t t[2];
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46 pthread_create(&t[0], NULL, Thread1, NULL);
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47 pthread_create(&t[1], NULL, Thread2, NULL);
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48 pthread_join(t[0], NULL);
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49 pthread_join(t[1], NULL);
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50 }
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51
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52 // CHECK: WARNING: ThreadSanitizer: data race on vptr
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53
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