/*
 * Copyright (c) 2011 Tony Arcieri. Distributed under the MIT License. See
 * LICENSE.txt for further details.
 */

#ifndef NIO4R_H
#define NIO4R_H

#include "ruby.h"
#if HAVE_RUBY_IO_H
# include "ruby/io.h"
#else
# include "rubyio.h"
#endif
#include "libev.h"

struct NIO_Selector
{
    struct ev_loop *ev_loop;
    struct ev_timer timer; /* for timeouts */
    struct ev_io wakeup;

    int wakeup_reader, wakeup_writer;
    int closed, selecting;
    int ready_count;

    VALUE ready_array;
};

struct NIO_callback_data
{
    VALUE *monitor;
    struct NIO_Selector *selector;
};

struct NIO_Monitor
{
    VALUE self;
    int interests, revents;
    struct ev_io ev_io;
    struct NIO_Selector *selector;
};

struct NIO_ByteBuffer
{
    int size, offset, limit, position, mark;
    char *buffer;
    VALUE self;
};


#ifdef GetReadFile
# define FPTR_TO_FD(fptr) (fileno(GetReadFile(fptr)))
#else

#if !HAVE_RB_IO_T || (RUBY_VERSION_MAJOR == 1 && RUBY_VERSION_MINOR == 8)
# define FPTR_TO_FD(fptr) fileno(fptr->f)
#else
# define FPTR_TO_FD(fptr) fptr->fd
#endif /* !HAVE_RB_IO_T */

#endif /* GetReadFile */

/* Thunk between libev callbacks in NIO::Monitors and NIO::Selectors */
void NIO_Selector_monitor_callback(struct ev_loop *ev_loop, struct ev_io *io, int revents);

#endif /* NIO4R_H */