1 // RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s 2 #include <pthread.h> 3 #include <stdio.h> 4 #include <unistd.h> 5 #include <sys/types.h> 6 #include <sys/stat.h> 7 #include <fcntl.h> 8 9 void *Thread1(void *x) { 10 int f = open("/dev/random", O_RDONLY); 11 close(f); 12 return NULL; 13 } 14 15 void *Thread2(void *x) { 16 sleep(1); 17 int f = open("/dev/random", O_RDONLY); 18 close(f); 19 return NULL; 20 } 21 22 int main() { 23 pthread_t t[2]; 24 pthread_create(&t[0], NULL, Thread1, NULL); 25 pthread_create(&t[1], NULL, Thread2, NULL); 26 pthread_join(t[0], NULL); 27 pthread_join(t[1], NULL); 28 printf("OK\n"); 29 } 30 31 // CHECK-NOT: WARNING: ThreadSanitizer: data race 32 33 34
