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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 <fcntl.h>
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4 #include <sys/stat.h>
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5 #include <sys/types.h>
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6
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7 void *Thread(void *arg) {
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8 char buf;
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9 read((long)arg, &buf, 1);
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10 barrier_wait(&barrier);
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11 return NULL;
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12 }
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13
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14 int main() {
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15 barrier_init(&barrier, 2);
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16 int fd = open("/dev/random", O_RDONLY);
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17 pthread_t t;
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18 pthread_create(&t, NULL, Thread, (void *)(long)fd);
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19 barrier_wait(&barrier);
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20 close(fd);
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21 pthread_join(t, NULL);
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22 fprintf(stderr, "DONE\n");
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23 }
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24
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25 // CHECK: WARNING: ThreadSanitizer: data race
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26 // CHECK: DONE
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