xref: /llvm-project/compiler-rt/test/tsan/Linux/clockwait_double_lock.c (revision 0e2585c8042bd6ce4eca1333c64234adac7487f2)
1*0e2585c8SVitaly Buka // Regression test for https://github.com/google/sanitizers/issues/1259
2*0e2585c8SVitaly Buka // RUN: %clang_tsan -O1 %s -o %t && %run %t
3*0e2585c8SVitaly Buka // REQUIRES: glibc-2.30 || android-30
4*0e2585c8SVitaly Buka 
5*0e2585c8SVitaly Buka #define _GNU_SOURCE
6*0e2585c8SVitaly Buka #include <pthread.h>
7*0e2585c8SVitaly Buka 
8*0e2585c8SVitaly Buka pthread_cond_t cv;
9*0e2585c8SVitaly Buka pthread_mutex_t mtx;
10*0e2585c8SVitaly Buka 
fn(void * vp)11*0e2585c8SVitaly Buka void *fn(void *vp) {
12*0e2585c8SVitaly Buka   pthread_mutex_lock(&mtx);
13*0e2585c8SVitaly Buka   pthread_cond_signal(&cv);
14*0e2585c8SVitaly Buka   pthread_mutex_unlock(&mtx);
15*0e2585c8SVitaly Buka   return NULL;
16*0e2585c8SVitaly Buka }
17*0e2585c8SVitaly Buka 
main()18*0e2585c8SVitaly Buka int main() {
19*0e2585c8SVitaly Buka   pthread_mutex_lock(&mtx);
20*0e2585c8SVitaly Buka 
21*0e2585c8SVitaly Buka   pthread_t tid;
22*0e2585c8SVitaly Buka   pthread_create(&tid, NULL, fn, NULL);
23*0e2585c8SVitaly Buka 
24*0e2585c8SVitaly Buka   struct timespec ts;
25*0e2585c8SVitaly Buka   clock_gettime(CLOCK_MONOTONIC, &ts);
26*0e2585c8SVitaly Buka   ts.tv_sec += 10;
27*0e2585c8SVitaly Buka   pthread_cond_clockwait(&cv, &mtx, CLOCK_MONOTONIC, &ts);
28*0e2585c8SVitaly Buka   pthread_mutex_unlock(&mtx);
29*0e2585c8SVitaly Buka 
30*0e2585c8SVitaly Buka   pthread_join(tid, NULL);
31*0e2585c8SVitaly Buka   return 0;
32*0e2585c8SVitaly Buka }
33