Linux死锁

第三种情况

#include
#include
#include
#include
 
pthread_mutex_t mutex1, mutex2;
void * workA(void * arg) {
    pthread_mutex_lock(&mutex1);
    sleep(1);
    pthread_mutex_lock(&mutex2);
 
    printf("workA......\n");
 
    pthread_mutex_unlock(&mutex2);
    pthread_mutex_unlock(&mutex1);
 
    return NULL;
}
 
void * workB(void * arg) {
    pthread_mutex_lock(&mutex2);
    sleep(1);
    pthread_mutex_lock(&mutex1);
 
    printf("workB......\n");
 
    pthread_mutex_unlock(&mutex1);
    pthread_mutex_unlock(&mutex2);
    
    return NULL;
}
 
 
int main() {
    pthread_mutex_init(&mutex1, NULL);
    pthread_mutex_init(&mutex2, NULL);
 
    pthread_t tid1, tid2;
    pthread_create(&tid1, NULL, workA, NULL);
    pthread_create(&tid2, NULL, workB, NULL);
 
    pthread_join(tid1, NULL);
    pthread_join(tid2, NULL); 
 
    pthread_mutex_destroy(&mutex1);
    pthread_mutex_destroy(&mutex2);
 
 
    return 0;
}