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#pragma once
#include <boost/function.hpp>
#include <boost/thread/mutex.hpp>
#include <list>
namespace Swift {
class EventOwner;
class EventLoop {
public:
EventLoop();
virtual ~EventLoop();
void postEvent(boost::function<void ()> event, boost::shared_ptr<EventOwner> owner = boost::shared_ptr<EventOwner>());
void removeEventsFromOwner(boost::shared_ptr<EventOwner> owner);
protected:
struct Event {
Event(boost::shared_ptr<EventOwner> owner, const boost::function<void()>& callback) :
owner(owner), callback(callback) {
}
bool operator==(const Event& o) const {
return o.id == id;
}
unsigned int id;
boost::shared_ptr<EventOwner> owner;
boost::function<void()> callback;
};
/**
* Reimplement this to call handleEvent(event) from the thread in which
* the event loop is residing.
*/
virtual void post(const Event& event) = 0;
void handleEvent(const Event& event);
private:
struct HasOwner {
HasOwner(boost::shared_ptr<EventOwner> owner) : owner(owner) {}
bool operator()(const Event& event) { return event.owner == owner; }
boost::shared_ptr<EventOwner> owner;
};
boost::mutex eventsMutex_;
unsigned int nextEventID_;
std::list<Event> events_;
};
}
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Swift