1*bcaeed49SFangrui Song // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2*bcaeed49SFangrui Song #include "test.h"
3*bcaeed49SFangrui Song #include <sys/types.h>
4*bcaeed49SFangrui Song #include <sys/stat.h>
5*bcaeed49SFangrui Song #include <fcntl.h>
6*bcaeed49SFangrui Song
Thread1(void * x)7*bcaeed49SFangrui Song void *Thread1(void *x) {
8*bcaeed49SFangrui Song int f = open("/dev/random", O_RDONLY);
9*bcaeed49SFangrui Song close(f);
10*bcaeed49SFangrui Song barrier_wait(&barrier);
11*bcaeed49SFangrui Song return NULL;
12*bcaeed49SFangrui Song }
13*bcaeed49SFangrui Song
Thread2(void * x)14*bcaeed49SFangrui Song void *Thread2(void *x) {
15*bcaeed49SFangrui Song barrier_wait(&barrier);
16*bcaeed49SFangrui Song int f = open("/dev/random", O_RDONLY);
17*bcaeed49SFangrui Song close(f);
18*bcaeed49SFangrui Song return NULL;
19*bcaeed49SFangrui Song }
20*bcaeed49SFangrui Song
main()21*bcaeed49SFangrui Song int main() {
22*bcaeed49SFangrui Song barrier_init(&barrier, 2);
23*bcaeed49SFangrui Song pthread_t t[2];
24*bcaeed49SFangrui Song pthread_create(&t[0], NULL, Thread1, NULL);
25*bcaeed49SFangrui Song pthread_create(&t[1], NULL, Thread2, NULL);
26*bcaeed49SFangrui Song pthread_join(t[0], NULL);
27*bcaeed49SFangrui Song pthread_join(t[1], NULL);
28*bcaeed49SFangrui Song fprintf(stderr, "OK\n");
29*bcaeed49SFangrui Song }
30*bcaeed49SFangrui Song
31*bcaeed49SFangrui Song // CHECK-NOT: WARNING: ThreadSanitizer: data race
32*bcaeed49SFangrui Song
33*bcaeed49SFangrui Song
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