llvm-project/lldb/test/functionalities/thread/main.c

59 lines
1.1 KiB
C

#include <pthread.h>
pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t mutex2 = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t mutex3 = PTHREAD_MUTEX_INITIALIZER;
void *
thread3 (void *input)
{
pthread_mutex_unlock(&mutex2); // Set break point at this line.
pthread_mutex_unlock(&mutex1);
return NULL;
}
void *
thread2 (void *input)
{
pthread_mutex_unlock(&mutex3);
pthread_mutex_lock(&mutex2);
pthread_mutex_unlock(&mutex2);
return NULL;
}
void *
thread1 (void *input)
{
pthread_t thread_2;
pthread_create (&thread_2, NULL, thread2, NULL);
pthread_mutex_lock(&mutex1);
pthread_mutex_unlock(&mutex1);
pthread_join(thread_2, NULL);
return NULL;
}
int main ()
{
pthread_t thread_1;
pthread_t thread_3;
pthread_mutex_lock (&mutex1);
pthread_mutex_lock (&mutex2);
pthread_mutex_lock (&mutex3);
pthread_create (&thread_1, NULL, thread1, NULL);
pthread_mutex_lock(&mutex3);
pthread_create (&thread_3, NULL, thread3, NULL);
pthread_join (thread_1, NULL);
pthread_join (thread_3, NULL);
return 0;
}