#pragma once

typedef struct fdwatch		FDWATCH;
typedef struct fdwatch *	LPFDWATCH;

enum EFdwatch
{
	FDW_NONE			= 0,
	FDW_READ			= 1,
	FDW_WRITE			= 2,
	FDW_WRITE_ONESHOT	= 4,
	FDW_EOF				= 8,
};

enum EFdwatchBackend
{
	FDWATCH_BACKEND_KQUEUE = 0,
	FDWATCH_BACKEND_SELECT = 1,
	FDWATCH_BACKEND_EPOLL = 2,
};

LPFDWATCH		fdwatch_new(int nfiles);
void			fdwatch_clear_fd(LPFDWATCH fdw, socket_t fd);
void			fdwatch_delete(LPFDWATCH fdw);
int				fdwatch_check_fd(LPFDWATCH fdw, socket_t fd);
int				fdwatch_check_event(LPFDWATCH fdw, socket_t fd, unsigned int event_idx);
void			fdwatch_clear_event(LPFDWATCH fdw, socket_t fd, unsigned int event_idx);
void			fdwatch_add_fd(LPFDWATCH fdw, socket_t fd, void* client_data, int rw, int oneshot);
int				fdwatch(LPFDWATCH fdw, struct timeval *timeout);
void *			fdwatch_get_client_data(LPFDWATCH fdw, unsigned int event_idx);
void			fdwatch_del_fd(LPFDWATCH fdw, socket_t fd);
int				fdwatch_get_buffer_size(LPFDWATCH fdw, socket_t fd);
int				fdwatch_get_ident(LPFDWATCH fdw, unsigned int event_idx);
EFdwatchBackend	fdwatch_get_backend(LPFDWATCH fdw);
const char *	fdwatch_backend_name(EFdwatchBackend backend);
int				fdwatch_get_descriptor_limit(LPFDWATCH fdw);