forked from OSchip/llvm-project
37 lines
728 B
C++
37 lines
728 B
C++
// RUN: %clang_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
|
|
// CHECK: ThreadSanitizer: data race
|
|
// CHECK: pthread_cond_signal
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <pthread.h>
|
|
|
|
struct Ctx {
|
|
pthread_mutex_t m;
|
|
pthread_cond_t c;
|
|
bool done;
|
|
};
|
|
|
|
void *thr(void *p) {
|
|
Ctx *c = (Ctx*)p;
|
|
pthread_mutex_lock(&c->m);
|
|
c->done = true;
|
|
pthread_mutex_unlock(&c->m);
|
|
pthread_cond_signal(&c->c);
|
|
return 0;
|
|
}
|
|
|
|
int main() {
|
|
Ctx *c = new Ctx();
|
|
pthread_mutex_init(&c->m, 0);
|
|
pthread_cond_init(&c->c, 0);
|
|
pthread_t th;
|
|
pthread_create(&th, 0, thr, c);
|
|
pthread_mutex_lock(&c->m);
|
|
while (!c->done)
|
|
pthread_cond_wait(&c->c, &c->m);
|
|
pthread_mutex_unlock(&c->m);
|
|
delete c;
|
|
pthread_join(th, 0);
|
|
}
|