1 #include <iostream>
2 #include <thread>
3 #include <mutex>
4 #include <condition_variable>
5 #include <array>
6 #include <vector>
7 using namespace std;
8
9 //通过mutex 等待事件响应
10 condition_variable isfull, isempty;//处理两种情况
11 mutex m;
12 bool flag = true;//标识,消费完了就退出
13 vector<int> myint;//开辟十个元素
14
15 void put(int num)
16 {
17 for (int i = 0; i < num; i++)
18 {
19 unique_lock<mutex> lk(m);//锁定
20 while (myint.size() >= 10)
21 {
22 //一直等待有空位才生产
23 isempty.wait(lk);
24 }
25
26 myint.push_back(i);
27 cout << "生产了" << i << endl;
28 //激活isfull
29 isfull.notify_all();
30
31 this_thread::sleep_for(chrono::milliseconds(500));
32 }
33 flag = false;
34 }
35
36 void take()
37 {
38 while (flag)
39 {
40 unique_lock<mutex> lk(m);//锁定
41 while (myint.size() == 0)
42 {
43 //一直等待有生产后才执行,(等待到激活后才可以执行)
44 isfull.wait(lk);
45 }
46
47 if (flag)
48 {
49 cout << "消费了" << myint[myint.size() - 1] << endl;
50 myint.pop_back();//消除
51 //激活isempty
52 isempty.notify_all();
53 }
54 }
55 }
56
57 void main()
58 {
59 thread t1(take);
60 thread t2(take);
61 thread t3(take);
62 thread t4(put,100);
63 cin.get();
64 }
