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// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include "test.h"
int fds[2];
void *ThreadCreatePipe(void *x) {
pipe(fds);
return NULL;
}
void *ThreadDummy(void *x) {
return NULL;
}
void *ThreadWrite(void *x) {
write(fds[1], "a", 1);
barrier_wait(&barrier);
return NULL;
}
void *ThreadClose(void *x) {
barrier_wait(&barrier);
close(fds[0]);
close(fds[1]);
return NULL;
}
int main() {
barrier_init(&barrier, 2);
pthread_t t_create;
pthread_create(&t_create, NULL, ThreadCreatePipe, NULL);
pthread_join(t_create, NULL);
for (int i = 0; i < 100; i++) {
pthread_t t_dummy;
pthread_create(&t_dummy, NULL, ThreadDummy, NULL);
pthread_join(t_dummy, NULL);
}
pthread_t t[2];
pthread_create(&t[0], NULL, ThreadWrite, NULL);
pthread_create(&t[1], NULL, ThreadClose, NULL);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
}
// CHECK-NOT: CHECK failed
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK: Write of size 8
// CHECK: #0 close
// CHECK: #1 ThreadClose
// CHECK: Previous read of size 8
// CHECK: #0 write
// CHECK: #1 ThreadWrite
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