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150
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1 // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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2
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3 // pthread barriers are not available on OS X
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4 // UNSUPPORTED: darwin
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5
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6 #include "test.h"
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7
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8 pthread_barrier_t B;
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9 int Global;
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10
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11 void *Thread1(void *x) {
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12 pthread_barrier_init(&B, 0, 2);
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13 barrier_wait(&barrier);
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14 pthread_barrier_wait(&B);
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15 return NULL;
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16 }
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17
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18 void *Thread2(void *x) {
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19 barrier_wait(&barrier);
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20 pthread_barrier_wait(&B);
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21 return NULL;
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22 }
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23
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24 int main() {
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25 barrier_init(&barrier, 2);
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26 pthread_t t;
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27 pthread_create(&t, NULL, Thread1, NULL);
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28 Thread2(0);
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29 pthread_join(t, NULL);
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30 pthread_barrier_destroy(&B);
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31 return 0;
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32 }
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33
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34 // CHECK: WARNING: ThreadSanitizer: data race
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