48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
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#ifndef MUDUO_EXAMPLES_HUB_PUBSUB_H
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#define MUDUO_EXAMPLES_HUB_PUBSUB_H
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#include "muduo/net/TcpClient.h"
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namespace pubsub
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{
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using muduo::string;
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// FIXME: dtor is not thread safe
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class PubSubClient : muduo::noncopyable
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{
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public:
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typedef std::function<void (PubSubClient*)> ConnectionCallback;
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typedef std::function<void (const string& topic,
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const string& content,
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muduo::Timestamp)> SubscribeCallback;
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PubSubClient(muduo::net::EventLoop* loop,
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const muduo::net::InetAddress& hubAddr,
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const string& name);
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void start();
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void stop();
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bool connected() const;
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void setConnectionCallback(const ConnectionCallback& cb)
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{ connectionCallback_ = cb; }
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bool subscribe(const string& topic, const SubscribeCallback& cb);
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void unsubscribe(const string& topic);
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bool publish(const string& topic, const string& content);
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private:
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void onConnection(const muduo::net::TcpConnectionPtr& conn);
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void onMessage(const muduo::net::TcpConnectionPtr& conn,
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muduo::net::Buffer* buf,
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muduo::Timestamp receiveTime);
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bool send(const string& message);
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muduo::net::TcpClient client_;
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muduo::net::TcpConnectionPtr conn_;
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ConnectionCallback connectionCallback_;
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SubscribeCallback subscribeCallback_;
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};
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} // namespace pubsub
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#endif // MUDUO_EXAMPLES_HUB_PUBSUB_H
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