标签:Customer Producer 示例 int item vtr QSemaphore public
QSemaphore
//Producer.h
//Producer\Customer都继承于QThread
class Producer:public QThread {
Q_OBJECT
public:
Producer(){}
protected:
void run()override;
};
class Customer:public QThread {
Q_OBJECT
public:
Customer(){}
protected:
void run()override;
};
//Producer.cpp
//ProducerSe初始为1,为了使生产者线程启动提供条件。
QSemaphore ProducerSe(1);
QSemaphore CustomerSe;
void Producer::run(){
for(int i = 0; i < 1000; ++i) {
ProducerSe.acquire();
int num = QRandomGenerator::global()->bounded(5);
qDebug()<<"Producer:"<<QThread::currentThreadId()
<<",release source count:"<<num<<"|"
<<QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
CustomerSe.release(num);
QThread::msleep(3000);
}
}
void Customer::run(){
for(int i = 0; i < 1000; ++i) {
CustomerSe.acquire() ;
qDebug()<<"Customer:"<<(int*)QThread::currentThreadId()<<"|"
<<QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
ProducerSe.release();
}
}
OUT:
Producer: 0x474c ,release source count: 0 | "2019-09-20T10:27:10.463"
Producer: 0x474c ,release source count: 2 | "2019-09-20T10:27:13.463"
Customer: 0x3914 | "2019-09-20T10:27:13.463"
Customer: 0x6acc | "2019-09-20T10:27:13.463"
Producer: 0x474c ,release source count: 1 | "2019-09-20T10:27:16.463"
Customer: 0x6b94 | "2019-09-20T10:27:16.463"
Producer: 0x474c ,release source count: 1 | "2019-09-20T10:27:19.465"
Customer: 0x3914 | "2019-09-20T10:27:19.465"
Producer: 0x474c ,release source count: 3 | "2019-09-20T10:27:22.477"
Customer: 0x6b94 | "2019-09-20T10:27:22.477"
Customer: 0x4c98 | "2019-09-20T10:27:22.477"
Customer: 0x5190 | "2019-09-20T10:27:22.477"
//生产者每次随机释放消费者锁个数,阻塞的的消费者随机启动释放的个数。
//main.cpp
int main(int argc,char **argv) {}
Producer p;
p.start();
QVector<Customer*> vtr;
for(int i = 0; i < 5; ++i){
Customer *c = new Customer;
QObject::connect(c,&Customer::finished,
c,&Customer::deleteLater);
vtr.push_back(c);
c->start();
}
p.wait();
for(auto item : vtr){
if(item != nullptr){
item->wait();
}
}
for(auto &item : vtr){
if(item != nullptr){
delete item;
item = nullptr;
}
}
return 0;
}
标签:Customer,Producer,示例,int,item,vtr,QSemaphore,public 来源: https://blog.csdn.net/u012199908/article/details/101052895
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