26 lines
631 B
C
26 lines
631 B
C
// RUN: %clangxx_tsan %s -o %t
|
|
// RUN: TSAN_OPTIONS=detect_deadlocks=1 not %t 2>&1 | FileCheck %s
|
|
#include <pthread.h>
|
|
|
|
int main() {
|
|
pthread_mutex_t mu1, mu2;
|
|
pthread_mutex_init(&mu1, NULL);
|
|
pthread_mutex_init(&mu2, NULL);
|
|
|
|
// mu1 => mu2
|
|
pthread_mutex_lock(&mu1);
|
|
pthread_mutex_lock(&mu2);
|
|
pthread_mutex_unlock(&mu2);
|
|
pthread_mutex_unlock(&mu1);
|
|
|
|
// mu2 => mu1
|
|
pthread_mutex_lock(&mu2);
|
|
pthread_mutex_lock(&mu1);
|
|
// CHECK: ThreadSanitizer: lock-order-inversion (potential deadlock)
|
|
pthread_mutex_unlock(&mu1);
|
|
pthread_mutex_unlock(&mu2);
|
|
|
|
pthread_mutex_destroy(&mu1);
|
|
pthread_mutex_destroy(&mu2);
|
|
}
|