/* -*-C-*-

$Id: prosterm.c,v 1.16 1999/01/02 06:11:34 cph Exp $

Copyright (c) 1990-1999 Massachusetts Institute of Technology

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at
your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

/* Primitives to control terminal devices. */

#include "scheme.h"
#include "prims.h"
#include "osterm.h"
#include "osio.h"

Tchannel
DEFUN (arg_terminal, (argument_number), int argument_number)
{
  Tchannel channel = (arg_channel (argument_number));
  enum channel_type type = (OS_channel_type (channel));
  if (! ((type == channel_type_terminal)
	 || (type == channel_type_unix_pty_master)
	 || (type == channel_type_os2_console)))
    error_bad_range_arg (argument_number);
  return (channel);
}

DEFINE_PRIMITIVE ("TERMINAL-GET-ISPEED", Prim_terminal_get_ispeed, 1, 1, 0)
{
  PRIMITIVE_HEADER (1);
  PRIMITIVE_RETURN
    (long_to_integer (OS_terminal_get_ispeed (arg_terminal (1))));
}

DEFINE_PRIMITIVE ("TERMINAL-GET-OSPEED", Prim_terminal_get_ospeed, 1, 1, 0)
{
  PRIMITIVE_HEADER (1);
  PRIMITIVE_RETURN
    (long_to_integer (OS_terminal_get_ospeed (arg_terminal (1))));
}

DEFINE_PRIMITIVE ("TERMINAL-SET-ISPEED", Prim_terminal_set_ispeed, 2, 2, 0)
{
  PRIMITIVE_HEADER (2);
  OS_terminal_set_ispeed ((arg_terminal (1)), (arg_baud_index (2)));
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("TERMINAL-SET-OSPEED", Prim_terminal_set_ospeed, 2, 2, 0)
{
  PRIMITIVE_HEADER (2);
  OS_terminal_set_ospeed ((arg_terminal (1)), (arg_baud_index (2)));
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("BAUD-INDEX->RATE", Prim_baud_index_to_rate, 1, 1, 0)
{
  PRIMITIVE_HEADER (1);
  PRIMITIVE_RETURN
    (long_to_integer (OS_baud_index_to_rate (arg_baud_index (1))));
}

DEFINE_PRIMITIVE ("BAUD-RATE->INDEX", Prim_baud_rate_to_index, 1, 1, 0)
{
  PRIMITIVE_HEADER (1);
  {
    int index = (OS_baud_rate_to_index (arg_nonnegative_integer (1)));
    if (index < 0)
      error_bad_range_arg (1);
    PRIMITIVE_RETURN (long_to_integer (index));
  }
}

DEFINE_PRIMITIVE ("TERMINAL-GET-STATE", Prim_terminal_get_state, 1, 1, 0)
{
  PRIMITIVE_HEADER (1);
  {
    SCHEME_OBJECT result = (allocate_string (OS_terminal_state_size ()));
    OS_terminal_get_state ((arg_terminal (1)), (STRING_LOC (result, 0)));
    PRIMITIVE_RETURN (result);
  }
}

DEFINE_PRIMITIVE ("TERMINAL-SET-STATE", Prim_terminal_set_state, 2, 2, 0)
{
  PRIMITIVE_HEADER (2);
  CHECK_ARG (2, STRING_P);
  {
    SCHEME_OBJECT state = (ARG_REF (2));
    if (((unsigned int) (STRING_LENGTH (state)))
	!= (OS_terminal_state_size ()))
      error_bad_range_arg (2);
    OS_terminal_set_state ((arg_terminal (1)), (STRING_LOC (state, 0)));
  }
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("TERMINAL-COOKED-OUTPUT?", Prim_terminal_cooked_output_p, 1, 1,
  "Return #F iff TERMINAL is not in cooked output mode.")
{
  PRIMITIVE_HEADER (1);
  PRIMITIVE_RETURN
    (BOOLEAN_TO_OBJECT (OS_terminal_cooked_output_p (arg_terminal (1))));
}

DEFINE_PRIMITIVE ("TERMINAL-RAW-OUTPUT", Prim_terminal_raw_output, 1, 1,
  "Put TERMINAL into raw output mode.")
{
  PRIMITIVE_HEADER (1);
  OS_terminal_raw_output (arg_terminal (1));
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("TERMINAL-COOKED-OUTPUT", Prim_terminal_cooked_output, 1, 1,
  "Put TERMINAL into cooked output mode.")
{
  PRIMITIVE_HEADER (1);
  OS_terminal_cooked_output (arg_terminal (1));
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("TERMINAL-BUFFERED?", Prim_terminal_buffered_p, 1, 1,
  "Return #F iff TERMINAL is not in buffered mode.")
{
  PRIMITIVE_HEADER (1);
  PRIMITIVE_RETURN
    (BOOLEAN_TO_OBJECT (OS_terminal_buffered_p (arg_terminal (1))));
}

DEFINE_PRIMITIVE ("TERMINAL-BUFFERED", Prim_terminal_buffered, 1, 1,
  "Put TERMINAL into buffered mode.")
{
  PRIMITIVE_HEADER (1);
  OS_terminal_buffered (arg_terminal (1));
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("TERMINAL-NONBUFFERED", Prim_terminal_nonbuffered, 1, 1,
  "Put TERMINAL into nonbuffered mode.")
{
  PRIMITIVE_HEADER (1);
  OS_terminal_nonbuffered (arg_terminal (1));
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("TERMINAL-FLUSH-INPUT", Prim_terminal_flush_input, 1, 1,
  "Discard any characters in TERMINAL's input buffer.")
{
  PRIMITIVE_HEADER (1);
  OS_terminal_flush_input (arg_terminal (1));
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("TERMINAL-FLUSH-OUTPUT", Prim_terminal_flush_output, 1, 1,
  "Discard any characters in TERMINAL's output buffer.")
{
  PRIMITIVE_HEADER (1);
  OS_terminal_flush_output (arg_terminal (1));
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("TERMINAL-DRAIN-OUTPUT", Prim_terminal_drain_output, 1, 1,
  "Wait until all characters in TERMINAL's output buffer have been sent.")
{
  PRIMITIVE_HEADER (1);
  OS_terminal_drain_output (arg_terminal (1));
  PRIMITIVE_RETURN (UNSPECIFIC);
}

DEFINE_PRIMITIVE ("OS-JOB-CONTROL?", Prim_os_job_control_p, 0, 0, 0)
{
  PRIMITIVE_HEADER (0);
  PRIMITIVE_RETURN (BOOLEAN_TO_OBJECT (OS_job_control_p ()));
}

DEFINE_PRIMITIVE ("HAVE-PTYS?", Prim_have_ptys_p, 0, 0, 0)
{
  PRIMITIVE_HEADER (0);
  PRIMITIVE_RETURN (BOOLEAN_TO_OBJECT (OS_have_ptys_p ()));
}