pthread_create暂停 Linux线程-互斥锁pthread_mutex_t （转载）(2)

int pthread_mutex_lock(pthread_mutex_t *mutex)

int pthread_mutex_unlock(pthread_mutex_t *mutex)

int pthread_mutex_trylock(pthread_mutex_t *mutex)

pthread_mutex_trylock()语义与pthread_mutex_lock()类似，不同的是在锁已经被占据时返回EBUSY而不是挂起等待

五，锁的使用

#include??<pthread.h>????

#include??<stdio.h>????

????

pthread_mutex_t??mutex??;????

void??*print_msg(void??*arg){????

????????????????int??i=0;????

????????????????pthread_mutex_lock(&mutex);????

????????????????for(i=0;i<15;i++){????

????????????????????????????????printf("output??:??%d\n",i);????

????????????????????????????????usleep(100);????

????????????????}????

????????????????pthread_mutex_unlock(&mutex);????

}????

int??main(int??argc,char**??argv){????

????????????????pthread_t??id1;????

????????????????pthread_t??id2;????

????????????????pthread_mutex_init(&mutex,NULL);????

????????????????pthread_create(&id1,NULL,print_msg,NULL);????

????????????????pthread_create(&id2,NULL,print_msg,NULL);????

????????????????pthread_join(id1,NULL);????

????????????????pthread_join(id2,NULL);????

????????????????pthread_mutex_destroy(&mutex);????

????????????????return??1;????

}????

将会一个线程一个线程的执行

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