#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <getopt.h>
#include <Ivy/timer.h>
#include <Ivy/ivychannel.h>
#include <Ivy/ivytcl.h>
#include <Ivy/version.h>
#include <tk.h>
#include <caml/mlvalues.h>
#include <caml/fail.h>
#include <caml/callback.h>
#include <caml/memory.h>
#include <caml/alloc.h>

value ivy_TclmainLoop(value unit)
{
  Tk_MainLoop();
  return Val_unit;
}

extern void cb_delete_channel(void *delete_read);
extern void cb_read_channel(Channel ch, IVY_HANDLE fd, void *closure);
extern void cb_write_channel(Channel ch, IVY_HANDLE fd, void *closure);

value ivy_TclchannelSetUp(value fd, value closure_name)
{
  Channel c;
  value * closure = caml_named_value(String_val(closure_name));

#if IVYMINOR_VERSION == 8
  c = IvyChannelAdd((IVY_HANDLE)Int_val(fd), (void*)closure, cb_delete_channel, cb_read_channel);
#else
  c = IvyChannelAdd((IVY_HANDLE)Int_val(fd), (void*)closure, cb_delete_channel, cb_read_channel, cb_write_channel);
#endif
  return Val_int(c);
}

value ivy_TclchannelClose(value ch)
{
  IvyChannelRemove((Channel)Long_val(ch));
  return Val_unit;
}