1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s 2 #include <pthread.h> 3 #include <stdio.h> 4 #include <unistd.h> 5 6 int pipes[2]; 7 8 void *Thread(void *x) { 9 // wait for shutown signal 10 while (read(pipes[0], &x, 1) != 1) { 11 } 12 close(pipes[0]); 13 close(pipes[1]); 14 return 0; 15 } 16 17 int main() { 18 if (pipe(pipes)) 19 return 1; 20 pthread_t t; 21 pthread_create(&t, 0, Thread, 0); 22 // send shutdown signal 23 while (write(pipes[1], &t, 1) != 1) { 24 } 25 pthread_join(t, 0); 26 fprintf(stderr, "OK\n"); 27 } 28 29 // CHECK-NOT: WARNING: ThreadSanitizer: data race 30 // CHECK: OK 31
