(stuff_char) [PROTOTYPES]: Provide ISO C arglist.

[bpt/emacs.git] / src / systty.h

diff --git a/src/systty.h b/src/systty.h
index 7e5efa0..6aeb2f6 100644 (file)
--- a/src/systty.h
+++ b/src/systty.h
@@ -1,11 +1,11 @@
 /* systty.h - System-dependent definitions for terminals.
 /* systty.h - System-dependent definitions for terminals.

-   Copyright (C) 1992 Free Software Foundation, Inc.
+   Copyright (C) 1993, 1994 Free Software Foundation, Inc.

 
 This file is part of GNU Emacs.
 
 GNU Emacs is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 
 This file is part of GNU Emacs.
 
 GNU Emacs 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 1, or (at your option)
+the Free Software Foundation; either version 2, or (at your option)

 any later version.
 
 GNU Emacs is distributed in the hope that it will be useful,
 any later version.
 
 GNU Emacs is distributed in the hope that it will be useful,


@@ -15,24 +15,67 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with GNU Emacs; see the file COPYING.  If not, write to
 
 You should have received a copy of the GNU General Public License
 along with GNU Emacs; see the file COPYING.  If not, write to

-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */

 
 #ifdef HAVE_TERMIOS
 #define HAVE_TCATTR
 #endif
 
 #ifdef HAVE_TERMIOS
 #define HAVE_TCATTR
 #endif

+
+/* If we defined these before and we are about to redefine them,
+   prevent alarming warnings.  */
+#ifdef BSD_TERMIOS
+#undef NL0
+#undef NL1
+#undef CR0
+#undef CR1
+#undef CR2
+#undef CR3
+#undef TAB0
+#undef TAB1
+#undef TAB2
+#undef XTABS
+#undef BS0
+#undef BS1
+#undef FF0
+#undef FF1
+#undef ECHO
+#undef NOFLSH
+#undef TOSTOP
+#undef FLUSHO
+#undef PENDIN
+#endif

 \f
 /* Include the proper files.  */
 #ifdef HAVE_TERMIO
 \f
 /* Include the proper files.  */
 #ifdef HAVE_TERMIO

+#ifdef __DGUX
+#include <sys/ioctl.h>
+#endif
+#ifndef NO_TERMIO

 #include <termio.h>
 #include <termio.h>

+#endif /* not NO_TERMIO */
+#ifndef INCLUDED_FCNTL
+#define INCLUDED_FCNTL

 #include <fcntl.h>
 #include <fcntl.h>

-#else
+#endif
+#else /* not HAVE_TERMIO */

 #ifdef HAVE_TERMIOS
 #ifdef HAVE_TERMIOS

+#if defined(_AIX) && defined(_I386)
+#include <termios.h>           /* termios.h needs to be before termio.h */
+#include <termio.h>
+#else /* not (_AIX && _I386) */
+#ifndef NO_TERMIO

 #include <termio.h>
 #include <termio.h>

+#endif

 #include <termios.h>
 #include <termios.h>

+#endif /* not (_AIX && _I386) */
+#define INCLUDED_FCNTL

 #include <fcntl.h>
 #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */
 #ifndef VMS
 #include <fcntl.h>
 #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */
 #ifndef VMS

+#ifndef DOS_NT

 #include <sgtty.h>
 #include <sgtty.h>

+#endif /* not DOS_NT */

 #else /* VMS */
 #include <descrip.h>
 static struct iosb
 #else /* VMS */
 #include <descrip.h>
 static struct iosb


@@ -45,15 +88,9 @@ static struct iosb
 
 extern int waiting_for_ast;
 extern int stop_input;
 
 extern int waiting_for_ast;
 extern int stop_input;

-#if 0 /* VAX C doeasn't understand initializing declarations */
-extern int input_ef = 0;
-extern int timer_ef = 0;
-extern int process_ef = 0;
-#else

 extern int input_ef;
 extern int timer_ef;
 extern int process_ef;
 extern int input_ef;
 extern int timer_ef;
 extern int process_ef;

-#endif

 extern int input_eflist;
 extern int timer_eflist;
 
 extern int input_eflist;
 extern int timer_eflist;
 


@@ -78,7 +115,12 @@ static struct sensemode {
 #endif /* not HAVE_TERMIOS */
 #endif /* not HAVE_TERMIO */
 
 #endif /* not HAVE_TERMIOS */
 #endif /* not HAVE_TERMIO */
 

-#ifdef AIX
+#ifdef __GNU_LIBRARY__
+#include <sys/ioctl.h>
+#include <termios.h>
+#endif
+
+#ifdef AIXHFT

 /* Get files for keyboard remapping */
 #define HFNKEYS 2
 #include <sys/hft.h>
 /* Get files for keyboard remapping */
 #define HFNKEYS 2
 #include <sys/hft.h>


@@ -98,20 +140,26 @@ static struct sensemode {
 #if defined (HPUX) && defined (HAVE_PTYS)
 #include <sys/ptyio.h>
 #endif
 #if defined (HPUX) && defined (HAVE_PTYS)
 #include <sys/ptyio.h>
 #endif

-  
+

 #ifdef AIX
 #include <sys/pty.h>
 #ifdef AIX
 #include <sys/pty.h>

-#include <unistd.h>

 #endif /* AIX */
 
 #endif /* AIX */
 

+#if (defined (POSIX) || defined (NEED_UNISTD_H)) && defined (HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+

 #ifdef SYSV_PTYS
 #ifdef SYSV_PTYS

+#include <sys/types.h>

 #include <sys/tty.h>
 #ifdef titan
 #include <sys/ttyhw.h>
 #include <sys/stream.h>
 #endif
 #include <sys/tty.h>
 #ifdef titan
 #include <sys/ttyhw.h>
 #include <sys/stream.h>
 #endif

+#ifndef NO_PTY_H

 #include <sys/pty.h>
 #endif
 #include <sys/pty.h>
 #endif

+#endif

 
 /* saka@pfu.fujitsu.co.JP writes:
    FASYNC defined in this file. But, FASYNC don't working.
 
 /* saka@pfu.fujitsu.co.JP writes:
    FASYNC defined in this file. But, FASYNC don't working.


@@ -146,11 +194,22 @@ static struct sensemode {
 #undef ASYNC
 #endif
 
 #undef ASYNC
 #endif
 

-/* Interupt input is not used if there is no FIONREAD.  */
+/* Interrupt input is not used if there is no FIONREAD.  */

 #ifndef FIONREAD
 #undef SIGIO
 #endif
 
 #ifndef FIONREAD
 #undef SIGIO
 #endif
 

+/* On TERMIOS systems, the tcmumbleattr calls take care of these
+   parameters, and it's a bad idea to use them (on AIX, it makes the
+   tty hang for a long time).  */
+#if defined (TIOCGLTC) && !defined (HAVE_TERMIOS)
+#define HAVE_LTCHARS
+#endif
+
+#if defined (TIOCGETC) && !defined (HAVE_TERMIOS)
+#define HAVE_TCHARS
+#endif
+

 \f
 /* Try to establish the correct character to disable terminal functions
    in a system-independent manner.  Note that USG (at least) define
 \f
 /* Try to establish the correct character to disable terminal functions
    in a system-independent manner.  Note that USG (at least) define


@@ -160,6 +219,7 @@ static struct sensemode {
 #define CDISABLE _POSIX_VDISABLE
 #else /* not _POSIX_VDISABLE */
 #ifdef CDEL
 #define CDISABLE _POSIX_VDISABLE
 #else /* not _POSIX_VDISABLE */
 #ifdef CDEL

+#undef CDISABLE

 #define CDISABLE CDEL
 #else /* not CDEL */
 #define CDISABLE 255
 #define CDISABLE CDEL
 #else /* not CDEL */
 #define CDISABLE 255


@@ -210,10 +270,10 @@ static struct sensemode {
 
 #ifdef EMACS_HAVE_TTY_PGRP
 
 
 #ifdef EMACS_HAVE_TTY_PGRP
 

-#ifdef HAVE_TERMIOS
+#if defined (HAVE_TERMIOS) && ! defined (BSD_TERMIOS)

 
 #define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd)))
 
 #define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd)))

-#define EMACS_SET_TTY_PGRP(fd, pgid) (*(pgid) = tcsetpgrp ((fd)))
+#define EMACS_SET_TTY_PGRP(fd, pgid) (tcsetpgrp ((fd), *(pgid)))

 
 #else
 #ifdef TIOCSPGRP
 
 #else
 #ifdef TIOCSPGRP


@@ -232,6 +292,32 @@ static struct sensemode {
 
 #endif
 
 
 #endif
 

+/* EMACS_GETPGRP (arg) returns the process group of the process.  */
+
+#ifdef __GNU_LIBRARY__
+/* GNU libc by default defines getpgrp with no args on all systems.  */
+#if __GLIBC__  >= 2
+/* glibc-2.1 adds the BSD compatibility getpgrp function
+   if you use _BSD_SOURCE, which Emacs does on GNU/Linux systems.  */
+#if __GLIBC_MINOR__ < 1 || ! defined (__FAVOR_BSD)
+#define GETPGRP_NO_ARG
+#endif
+#else /* __GLIBC__ < 2 */
+#define GETPGRP_NO_ARG
+#endif /* __GLIBC__ < 2 */
+#else /* not __GNU_LIBRARY__ */
+#if defined (USG) && !defined (GETPGRP_NEEDS_ARG)
+#  if !defined (GETPGRP_NO_ARG)
+#    define GETPGRP_NO_ARG
+#  endif
+#endif
+#endif /* not __GNU_LIBRARY__ */
+
+#if defined (GETPGRP_NO_ARG)
+#  define EMACS_GETPGRP(x) getpgrp()
+#else
+#  define EMACS_GETPGRP(x) getpgrp(x)
+#endif /* !GETPGRP_NO_ARG */

 \f
 /* Manipulate a TTY's input/output processing parameters.  */
 
 \f
 /* Manipulate a TTY's input/output processing parameters.  */
 


@@ -242,14 +328,15 @@ static struct sensemode {
    emacs_tty should contain an element for each parameter struct
    that Emacs may change.
 
    emacs_tty should contain an element for each parameter struct
    that Emacs may change.
 

-   EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the
-   parameters of the tty on FD in *P.
+   EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the parameters
+   of the tty on FD in *P.  Return zero if all's well, or -1 if we ran
+   into an error we couldn't deal with.

 
 

-   EMACS_SET_TTY (int FD, struct emacs_tty *P, int waitp)
+   EMACS_SET_TTY (int FD, struct emacs_tty *P, int flushp)

    sets the parameters of the tty on FD according to the contents of
    sets the parameters of the tty on FD according to the contents of

-   *P.  If waitp is non-zero, we wait for all queued output to be
-   written before making the change; otherwise, we forget any queued
-   input and make the change immediately.
+   *P.  If flushp is non-zero, we discard queued input to be
+   written before making the change.
+   Return 0 if all went well, and -1 if anything failed.

 
    EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel
    expands tabs to spaces upon output; in that case, there is no
 
    EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel
    expands tabs to spaces upon output; in that case, there is no


@@ -257,13 +344,9 @@ static struct sensemode {
 
 
 /* For each tty parameter structure that Emacs might want to save and restore,
 
 
 /* For each tty parameter structure that Emacs might want to save and restore,

-   - include an element for it in this structure,
-   - define a pair of numbered macros to get and set it and return 
-     true iff the call succeeded,
-   - give alternative definitions for when the component is not implemented
-     which always succeed, and
-   - extend the definition of EMACS_{GET,SET}_TTY_CHARS to include the
-     new macros.  */
+   - include an element for it in this structure, and
+   - extend the emacs_{get,set}_tty functions in sysdep.c to deal with the
+     new members.  */

 
 struct emacs_tty {
 
 
 struct emacs_tty {
 


@@ -278,96 +361,52 @@ struct emacs_tty {
 #ifdef VMS
   struct sensemode main;
 #else
 #ifdef VMS
   struct sensemode main;
 #else

+#ifdef DOS_NT
+  int main;
+#else  /* not DOS_NT */

   struct sgttyb main;
   struct sgttyb main;

+#endif /* not DOS_NT */

 #endif
 #endif
 #endif
 #endif
 #endif
 #endif

-#ifdef TIOCGLTC
+
+/* If we have TERMIOS, we don't need to do this - they're taken care of
+   by the tc*attr calls.  */
+#ifndef HAVE_TERMIOS
+#ifdef HAVE_LTCHARS

   struct ltchars ltchars;
 #endif
   struct ltchars ltchars;
 #endif

-#ifdef TIOCGETC
+
+#ifdef HAVE_TCHARS

   struct tchars tchars;
   int lmode;
 #endif
   struct tchars tchars;
   int lmode;
 #endif

+#endif

 };
 \f
 /* Define EMACS_GET_TTY and EMACS_SET_TTY,
 };
 \f
 /* Define EMACS_GET_TTY and EMACS_SET_TTY,

-   the macros for reading and setting parts of `struct emacs_tty'.  */
-
-#ifdef HAVE_TCATTR
-
-#define EMACS_GET_TTY_1(fd, p) (tcgetattr ((fd), &(p)->main) != -1)
-#define EMACS_SET_TTY_1(fd, p, waitp) \
-  (tcsetattr ((fd), (waitp) ? TCSAFLUSH : TCSADRAIN, &(p)->main) != -1)
-
-#else
-#ifdef HAVE_TERMIO
-
-#define EMACS_GET_TTY_1(fd, p) (ioctl ((fd), TCGETA, &(p)->main) != -1)
-#define EMACS_SET_TTY_1(fd, p, waitp)                  \
-  (ioctl ((fd), (waitp) ? TCSETAW : TCSETAF, &(p)->main) != -1)
-
-#else
-#ifdef VMS
-
-/* These definitions will really only work in sysdep.c, because of their
-   use of input_iosb.  I don't know enough about VMS QIO to fix this.  */
-#define EMACS_GET_TTY_1(fd, p)                                 \
-  (1 & SYS$QIOW (0, (fd), IO$_SENSEMODE, (p), 0, 0,            \
-           &(p)->main.class, 12, 0, 0, 0, 0))
-#define EMACS_SET_TTY_1(fd, p, waitp)                          \
-  (1 & SYS$QIOW (0, (fd), IO$_SETMODE, &input_iosb, 0, 0,      \
-           &(p)->main.class, 12, 0, 0, 0, 0))
-
-#else
-
-#define EMACS_GET_TTY_1(fd, p) (ioctl ((fd), TIOCGETP, &(p)->main) != -1)
-#define EMACS_SET_TTY_1(fd, p, waitp)                  \
-  (ioctl ((fd), (waitp) ? TIOCSETP : TIOCSETN, &(p)->main) != -1)
-
-#endif
-#endif
+   the macros for reading and setting parts of `struct emacs_tty'.
+
+   These got pretty unmanageable (huge macros are hard to debug), and
+   finally needed some code which couldn't be done as part of an
+   expression, so we moved them out to their own functions in sysdep.c.  */
+#define EMACS_GET_TTY(fd, p)        (emacs_get_tty ((fd), (p)))
+#define EMACS_SET_TTY(fd, p, waitp) (emacs_set_tty ((fd), (p), (waitp)))
+#ifdef P_  /* Unfortunately this file is sometimes included before lisp.h */
+extern int emacs_get_tty P_ ((int, struct emacs_tty *));
+extern int emacs_set_tty P_ ((int, struct emacs_tty *, int));

 #endif
 
 #endif
 

-#ifdef TIOCGLTC
-#define EMACS_GET_TTY_2(fd, p)                         \
-  (ioctl ((fd), TIOCGLTC, &(p)->ltchars) != -1)
-#define EMACS_SET_TTY_2(fd, p, waitp)                  \
-  (ioctl ((fd), TIOCSLTC, &(p)->ltchars) != -1)
-#else
-#define EMACS_GET_TTY_2(fd, p) 1
-#define EMACS_SET_TTY_2(fd, p, waitp) 1
-#endif /* TIOCGLTC */
-
-#ifdef TIOCGETC
-#define EMACS_GET_TTY_3(fd, p)                         \
-  (ioctl ((fd), TIOCGETC, &(p)->tchars) != -1          \
-   && ioctl ((fd), TIOCLGET, &(p)->lmode) != -1)
-#define EMACS_SET_TTY_3(fd, p, waitp)                  \
-  (ioctl ((fd), TIOCSETC, &(p)->tchars) != -1          \
-   && ioctl ((fd), TIOCLSET, &(p)->lmode) != -1)
-#else
-#define EMACS_GET_TTY_3(fd, p) 1
-#define EMACS_SET_TTY_3(fd, p, waitp) 1
-#endif /* TIOCGLTC */
-
-/* Define these to be a concatenation of all the EMACS_{GET,SET}_TTY_n
-   macros.  */
-#define EMACS_GET_TTY(fd, tc)  \
-  (EMACS_GET_TTY_1 (fd, tc)    \
-   && EMACS_GET_TTY_2 (fd, tc) \
-   && EMACS_GET_TTY_3 (fd, tc))
-
-#define EMACS_SET_TTY(fd, tc, waitp)   \
-  (EMACS_SET_TTY_1 (fd, tc, waitp)     \
-   && EMACS_SET_TTY_2 (fd, tc, waitp)  \
-   && EMACS_SET_TTY_3 (fd, tc, waitp))

 \f
 /* Define EMACS_TTY_TABS_OK.  */
 
 #ifdef HAVE_TERMIOS
 
 \f
 /* Define EMACS_TTY_TABS_OK.  */
 
 #ifdef HAVE_TERMIOS
 

+#ifdef TABDLY

 #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3)
 #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3)

+#else
+#define EMACS_TTY_TABS_OK(p) 1
+#endif

 
 #else /* not def HAVE_TERMIOS */
 #ifdef HAVE_TERMIO
 
 #else /* not def HAVE_TERMIOS */
 #ifdef HAVE_TERMIO


@@ -381,7 +420,11 @@ struct emacs_tty {
 
 #else
 
 
 #else
 

+#ifdef DOS_NT
+#define EMACS_TTY_TABS_OK(p) 0
+#else /* not DOS_NT */

 #define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS)
 #define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS)

+#endif /* not DOS_NT */

 
 #endif /* not def VMS */
 #endif /* not def HAVE_TERMIO */
 
 #endif /* not def VMS */
 #endif /* not def HAVE_TERMIO */