93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
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////////////////////////////////////////////////////////////////////////////////
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// //
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// File: event_system.h //
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// Description: global event handling core class definition //
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// Project: WANProxy XTech //
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// Author: Andreu Vidal Bramfeld-Software //
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// Last modified: 2015-04-01 //
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// //
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////////////////////////////////////////////////////////////////////////////////
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#ifndef EVENT_EVENT_SYSTEM_H
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#define EVENT_EVENT_SYSTEM_H
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#include <common/buffer.h>
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#include <common/ring_buffer.h>
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#include <event/action.h>
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#include <event/event_callback.h>
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#include <event/object_callback.h>
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#include <event/callback_queue.h>
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#include <event/event_message.h>
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#include <event/io_service.h>
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class EventAction;
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enum EventInterest
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{
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EventInterestReload,
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EventInterestStop,
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EventInterests
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};
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enum StreamMode
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{
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StreamModeConnect,
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StreamModeAccept,
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StreamModeRead,
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StreamModeWrite,
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StreamModeEnd
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};
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class EventSystem
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{
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private:
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LogHandle log_;
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IoService io_service_;
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WaitBuffer<EventMessage> gateway_;
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CallbackQueue interest_queue_[EventInterests];
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bool reload_, stop_;
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public:
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EventSystem ();
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void run ();
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void reload ();
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void stop ();
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Action* register_interest (EventInterest interest, Callback* cb);
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Action* track (int fd, StreamMode mode, EventCallback* cb);
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void cancel (EventAction* act);
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int take_message (const EventMessage& msg) { return gateway_.write (msg); }
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};
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class EventAction : public Action
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{
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public:
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EventSystem& system_;
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int fd_;
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StreamMode mode_;
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EventCallback* callback_;
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public:
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EventAction (EventSystem& sys, int fd, StreamMode mode, EventCallback* cb) : system_ (sys)
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{
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fd_ = fd; mode_ = mode; callback_ = cb;
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}
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~EventAction ()
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{
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delete callback_;
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}
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virtual void cancel ()
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{
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cancelled_ = true;
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system_.cancel (this);
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}
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};
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extern EventSystem event_system;
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#endif /* !EVENT_EVENT_SYSTEM_H */
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