71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
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#pragma once
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// event monitor
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//
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// created on 2022-11-29
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//
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#include "referer.h"
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#include <thread>
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#include <memory>
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typedef std::shared_ptr<std::thread> THREAD_PTR;
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// object event_handler
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//
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// derived from 'event_handler' if your class will handle some events of drived by events
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//
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class event_handler : public refer
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{
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protected:
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event_handler();
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virtual ~event_handler();
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public:
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enum
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{
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EVENT_NONE = 0,
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EVENT_READ, // indicates that the 'fd' is readable, you should perform 'read' if data was null
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EVENT_WRITE, // indicates that the 'fd' is writeable, data in 'data' has sent 'data_len' bytes, in async-write only
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};
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virtual int32_t on_event(int32_t ev, void* data, size_t data_len) = 0;
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virtual int32_t get_fd(void) = 0;
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};
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class parent_holder : public refer
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{
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protected:
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parent_holder();
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virtual ~parent_holder();
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public:
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virtual int32_t stop(void) = 0; // stop work and release parent ptr
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};
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// event_monitor to manage an event-driven model, this will trigger EVENT_READ/EVENT_WRITE events to 'handler'
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//
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class event_monitor : public refer
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{
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protected:
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std::string desc_;
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protected:
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event_monitor(const char* desc);
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virtual ~event_monitor();
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public:
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virtual int32_t start(int32_t threads = 1) = 0;
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virtual int32_t stop(void) = 0;
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virtual int32_t add_fd(event_handler* handler) = 0;
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virtual int32_t remove_fd(event_handler* handler) = 0;
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enum
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{
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EV_TYPE_POLL = 1,
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EV_TYPE_EPOLL,
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};
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static event_monitor* create(const char* desc, int32_t type = EV_TYPE_EPOLL);
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};
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