C++ 如何在两个类之间发送/接收消息
我有两个类source和destination,它们代表我希望在它们之间发送和接收消息的两个主机。为此,我创建了以下类。有更好的方法吗? 例如:C++ 如何在两个类之间发送/接收消息,c++,C++,我有两个类source和destination,它们代表我希望在它们之间发送和接收消息的两个主机。为此,我创建了以下类。有更好的方法吗? 例如: class Reseux { private: int Nb_Source; int Nb_destination; public: class Source { private:
class Reseux
{
private:
int Nb_Source;
int Nb_destination;
public:
class Source
{
private:
int id_Source;
public:
void __fastcall Envoyer();
void __fastcall Recevoir();
int __fastcall get_id() {return (this->id_Source);};
} *Source;
//----------------------------------------------------------------
class destination;
{
private:
int id_destination;;
public:
void __fastcall Envoyer();
void __fastcall Recevoir();
int __fastcall get_id() {return (this->id_destination);};
} *destination;
};
class tMessage
{
private:
String Contenu;
int id_Source, id_Destination;
public:
bool Alert;
int __fastcall get_id_Source() {return(this->id_Source);};
int __fastcall get_id_Destination() {return(this->id_Destination);};
};
void __fastcall Reseux::Source::Envoyer(tMessage *_Message)
{ _Message=new tMessage();
_Message->id_Source=Source->get_id();
_Message->id_destination=id_destination->get_id();
destination->Recevoir(_Message);}
void __fastcall Reseux::destination::Recevoir(tMessage *_Message)
{ };
您可以尝试观察者模式,如下所示:
#include <string>
#include <iostream>
#include <memory>
#include <vector>
class Message
{
public:
explicit Message(const std::string& text) : content(text) { }
std::string GetText() const { return content; }
private:
std::string content{ "" };
};
class Subscriber
{
public:
explicit Subscriber() { }
virtual ~Subscriber() { }
virtual void ReceiveMsg(const Message& msg) = 0;
};
class Source
{
public:
explicit Source() { }
inline void BroadcastMsg(const std::string& content)
{
Message msg(content);
for (const auto& subscriber : subscribers)
subscriber->ReceiveMsg(msg);
}
inline void AddSubscriber(Subscriber* sub) { subscribers.push_back(sub); }
private:
std::vector<Subscriber*> subscribers;
};
class Destination : public Subscriber
{
public:
explicit Destination() { }
virtual ~Destination() { }
inline virtual void ReceiveMsg(const Message& msg) override
{
std::cout << msg.GetText();
}
};
int main()
{
std::unique_ptr<Source> host1 = std::make_unique<Source>();
std::unique_ptr<Destination> host2 = std::make_unique<Destination>();
host1->AddSubscriber(host2.get());
host1->BroadcastMsg("Good morning, Vietnam!!!");
getchar();
}
#包括
#包括
#包括
#包括
类消息
{
公众:
显式消息(const std::string和text):内容(text){}
std::string GetText()常量{return content;}
私人:
std::字符串内容{“”};
};
类订户
{
公众:
显式订阅服务器(){}
虚拟~Subscriber(){}
虚空接收消息(const Message&msg)=0;
};
类源
{
公众:
显式源(){}
内联void BroadcastMsg(const std::string&content)
{
消息消息(内容);
用于(常数自动和订户:订户)
订户->接收消息(消息);
}
inline void AddSubscriber(Subscriber*sub){subscribers.push_back(sub);}
私人:
std::向量订户;
};
类别目的地:公共订户
{
公众:
显式目标(){}
虚拟~Destination(){}
内联虚空接收消息(常量消息和消息)覆盖
{
std::coutaddsubscriber(host2.get());
host1->BroadcastMsg(“早上好,越南!!!”);
getchar();
}
在程序中有不同的通信方式。其中一种方式是使用多线程。我建议您在线阅读更多关于多线程编程的内容,或者阅读一些有关此任务的教科书。