xref: /llvm-project/compiler-rt/test/tsan/Linux/clockwait_double_lock.c (revision 0e2585c8042bd6ce4eca1333c64234adac7487f2)
1 // Regression test for https://github.com/google/sanitizers/issues/1259
2 // RUN: %clang_tsan -O1 %s -o %t && %run %t
3 // REQUIRES: glibc-2.30 || android-30
4 
5 #define _GNU_SOURCE
6 #include <pthread.h>
7 
8 pthread_cond_t cv;
9 pthread_mutex_t mtx;
10 
fn(void * vp)11 void *fn(void *vp) {
12   pthread_mutex_lock(&mtx);
13   pthread_cond_signal(&cv);
14   pthread_mutex_unlock(&mtx);
15   return NULL;
16 }
17 
main()18 int main() {
19   pthread_mutex_lock(&mtx);
20 
21   pthread_t tid;
22   pthread_create(&tid, NULL, fn, NULL);
23 
24   struct timespec ts;
25   clock_gettime(CLOCK_MONOTONIC, &ts);
26   ts.tv_sec += 10;
27   pthread_cond_clockwait(&cv, &mtx, CLOCK_MONOTONIC, &ts);
28   pthread_mutex_unlock(&mtx);
29 
30   pthread_join(tid, NULL);
31   return 0;
32 }
33