15d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s 2da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany#include <pthread.h> 3da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany#include <stdio.h> 4da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany#include <stddef.h> 5da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany#include <unistd.h> 6da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany 7da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryanypthread_barrier_t B; 8da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryanyint Global; 9da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany 10da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryanyvoid *Thread1(void *x) { 11da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_barrier_init(&B, 0, 2); 12da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_barrier_wait(&B); 13da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany return NULL; 14da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany} 15da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany 16da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryanyvoid *Thread2(void *x) { 1763a22f073dcdfbabc492ca4c9eb06d0571915570Dmitry Vyukov sleep(1); 18da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_barrier_wait(&B); 19da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany return NULL; 20da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany} 21da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany 22da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryanyint main() { 23da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_t t; 24da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_create(&t, NULL, Thread1, NULL); 25da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany Thread2(0); 26da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_join(t, NULL); 27da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany pthread_barrier_destroy(&B); 28da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany return 0; 29da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany} 30da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany 31da4edd850db1a333c15fc3b0abc01a2e8d2f08feKostya Serebryany// CHECK: WARNING: ThreadSanitizer: data race 32