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| // 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/stat.h>
#include <fcntl.h>
int fds[2];
void *Thread1(void *x) {
char buf;
read(fds[0], &buf, 1);
close(fds[0]);
return 0;
}
void *Thread2(void *x) {
close(fds[1]);
return 0;
}
int main() {
fds[0] = open("/dev/random", O_RDONLY);
fds[1] = dup2(fds[0], 100);
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
|