使用信号量实现生产者-消费者问题 

 1 # define N 100
 2 typedef int semaphore;
 3 semaphore mutex = 1;
 4 semaphore empty = N;
 5 semaphore full = 0;
 6 
 7 void produce(){
 8     while(TRUE){
 9         int item = produce_item();
10         down(&empty);
11         down(&mutex);
12         insert_item(item);
13         up(&mutex);
14         up(&full);
15     }
16 }
17 
18 void consumer(){
19     while(TRUE){
20         down(&full);
21         down(&mutex);
22         int item = remove_item();
23         up(&mutex);
24         up(&empty);
25         consumer_item(item);
26     }
27 }

 

posted @ 2021-04-18 15:30  解忧swag  阅读(112)  评论(0)    收藏  举报