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#ifndef event_manager_hh_INCLUDED
#define event_manager_hh_INCLUDED
#include <poll.h>
#include <unordered_map>
#include "utils.hh"
namespace Kakoune
{
using EventHandler = std::function<void (int fd)>;
// The EventManager provides an interface to file descriptor
// based event handling.
//
// The program main loop should call handle_next_events()
// until it's time to quit.
class EventManager : public Singleton<EventManager>
{
public:
EventManager();
// Watch the given file descriptor, when data becomes
// ready, handler will be called with fd as parameter.
// It is an error to register multiple handlers on the
// same file descriptor.
void watch(int fd, EventHandler handler);
// stop watching fd
void unwatch(int fd);
void handle_next_events();
// force the handler associated with fd to be executed
// on next handle_next_events call.
void force_signal(int fd);
private:
std::vector<pollfd> m_events;
std::vector<std::unique_ptr<EventHandler>> m_handlers;
std::vector<std::unique_ptr<EventHandler>> m_handlers_trash;
std::vector<int> m_forced;
};
}
#endif // event_manager_hh_INCLUDED
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