38 lines
717 B
C++
38 lines
717 B
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
int fds[2];
|
|
int X;
|
|
|
|
void *Thread1(void *x) {
|
|
X = 42;
|
|
write(fds[1], "a", 1);
|
|
close(fds[1]);
|
|
return NULL;
|
|
}
|
|
|
|
void *Thread2(void *x) {
|
|
char buf;
|
|
while (read(fds[0], &buf, 1) != 1) {
|
|
}
|
|
X = 43;
|
|
close(fds[0]);
|
|
return NULL;
|
|
}
|
|
|
|
int main() {
|
|
socketpair(AF_UNIX, SOCK_STREAM, 0, fds);
|
|
pthread_t t[2];
|
|
pthread_create(&t[0], NULL, Thread1, NULL);
|
|
pthread_create(&t[1], NULL, Thread2, NULL);
|
|
pthread_join(t[0], NULL);
|
|
pthread_join(t[1], NULL);
|
|
fprintf(stderr, "OK\n");
|
|
}
|
|
|
|
// CHECK-NOT: WARNING: ThreadSanitizer: data race
|