/* Terminal interface definitions for GDB, the GNU Debugger.
   Copyright (C) 1986, 1989, 1990, 1991, 1992, 1993, 1995, 1996, 1999, 2000,
   2006, 2007, 2008, 2009 Free Software Foundation, Inc.

   This file is part of GDB.

   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 3 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, see <http://www.gnu.org/licenses/>.  */

#if !defined (TERMINAL_H)
#define TERMINAL_H 1


/* If we're using autoconf, it will define HAVE_TERMIOS_H,
   HAVE_TERMIO_H and HAVE_SGTTY_H for us. One day we can rewrite
   ser-unix.c and inflow.c to inspect those names instead of
   HAVE_TERMIOS, HAVE_TERMIO and the implicit HAVE_SGTTY (when neither
   HAVE_TERMIOS or HAVE_TERMIO is set).  Until then, make sure that
   nothing has already defined the one of the names, and do the right
   thing. */

#if !defined (HAVE_TERMIOS) && !defined(HAVE_TERMIO) && !defined(HAVE_SGTTY)
#if defined(HAVE_TERMIOS_H)
#define HAVE_TERMIOS
#else /* ! defined (HAVE_TERMIOS_H) */
#if defined(HAVE_TERMIO_H)
#define HAVE_TERMIO
#else /* ! defined (HAVE_TERMIO_H) */
#if defined(HAVE_SGTTY_H)
#define HAVE_SGTTY
#endif /* ! defined (HAVE_SGTTY_H) */
#endif /* ! defined (HAVE_TERMIO_H) */
#endif /* ! defined (HAVE_TERMIOS_H) */
#endif /* !defined (HAVE_TERMIOS) && !defined(HAVE_TERMIO) && !defined(HAVE_SGTTY) */

#if defined(HAVE_TERMIOS)
#include <termios.h>
#endif

#if !defined(_WIN32) && !defined (HAVE_TERMIOS)

/* Define a common set of macros -- BSD based -- and redefine whatever
   the system offers to make it look like that.  FIXME: serial.h and
   ser-*.c deal with this in a much cleaner fashion; as soon as stuff
   is converted to use them, can get rid of this crap.  */

#ifdef HAVE_TERMIO

#include <termio.h>

#undef TIOCGETP
#define TIOCGETP TCGETA
#undef TIOCSETN
#define TIOCSETN TCSETA
#undef TIOCSETP
#define TIOCSETP TCSETAF
#define TERMINAL struct termio

#else /* sgtty */

#include <fcntl.h>
#include <sgtty.h>
#include <sys/ioctl.h>
#define TERMINAL struct sgttyb

#endif /* sgtty */
#endif

struct inferior;

extern void new_tty_prefork (const char *);

extern void new_tty (void);

extern void new_tty_postfork (void);

extern void copy_terminal_info (struct inferior *to, struct inferior *from);

/* Do we have job control?  Can be assumed to always be the same within
   a given run of GDB.  In inflow.c.  */
extern int job_control;

extern pid_t create_tty_session (void);

/* Set the process group of the caller to its own pid, or do nothing if
   we lack job control.  */
extern int gdb_setpgid (void);

/* Set up a serial structure describing standard input.  In inflow.c.  */
extern void initialize_stdin_serial (void);

extern int gdb_has_a_terminal (void);

/* Set the process group of the caller to its own pid, or do nothing
   if we lack job control.  */
extern int gdb_setpgid (void);

#endif /* !defined (TERMINAL_H) */