27 lines · cpp
1// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s2#include "test.h"3#include <fcntl.h>4#include <sys/stat.h>5#include <sys/types.h>6 7void *Thread(void *arg) {8 char buf;9 read((long)arg, &buf, 1);10 barrier_wait(&barrier);11 return NULL;12}13 14int main() {15 barrier_init(&barrier, 2);16 int fd = open("/dev/random", O_RDONLY);17 pthread_t t;18 pthread_create(&t, NULL, Thread, (void *)(long)fd);19 barrier_wait(&barrier);20 close(fd);21 pthread_join(t, NULL);22 fprintf(stderr, "DONE\n");23}24 25// CHECK: WARNING: ThreadSanitizer: data race26// CHECK: DONE27