/* systerm.h - System-dependent definitions for terminals. Copyright (C) 1992 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 the Free Software Foundation; either version 1, or (at your option) any later version. GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Include the proper files. */ #ifdef HAVE_TERMIO #include #include #else #ifdef HAVE_TERMIOS #include #include #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ #ifndef VMS #include #endif /* not VMS */ #endif /* not HAVE_TERMIOS */ #endif /* not HAVE_TERMIO */ #ifdef AIX /* Get files for keyboard remapping */ #define HFNKEYS 2 #include #include #endif /* Get rid of LLITOUT in 4.1, since it is said to stimulate kernel bugs. */ #ifdef BSD4_1 #undef LLITOUT #define LLITOUT 0 #endif /* 4.1 */ #ifdef NEED_BSDTTY #include #endif #if defined (HPUX) && defined (HAVE_PTYS) #include #endif #ifdef AIX #include #include #endif /* AIX */ #ifdef SYSV_PTYS #include #ifdef titan #include #include #endif #include #endif /* saka@pfu.fujitsu.co.JP writes: FASYNC defined in this file. But, FASYNC don't working. so no problem, because unrequest_sigio only need. */ #if defined (pfa) #include #endif /* Special cases - inhibiting the use of certain features. */ #ifdef APOLLO #undef TIOCSTART #endif #ifdef XENIX #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ #endif #ifdef BROKEN_TIOCGETC #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ #endif /* UNIPLUS systems may have FIONREAD. */ #ifdef UNIPLUS #include #endif /* Allow m- file to inhibit use of FIONREAD. */ #ifdef BROKEN_FIONREAD #undef FIONREAD #undef ASYNC #endif /* Interupt input is not used if there is no FIONREAD. */ #ifndef FIONREAD #undef SIGIO #endif /* Get the number of characters queued for output. */ /* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters queued for output to the terminal FD in *SIZE, if FD is a tty. Returns -1 if there was an error (i.e. FD is not a tty), 0 otherwise. */ #ifdef TIOCOUTQ #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TIOCOUTQ, (size))) #endif #ifdef HAVE_TERMIO #ifdef TCOUTQ #undef EMACS_OUTQSIZE #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TCOUTQ, (size))) #endif #endif /* Manipulate a terminal's current process group. */ /* EMACS_HAVE_TTY_PGRP is true if we can get and set the tty's current controlling process group. EMACS_GET_TTY_PGRP(int FD, int *PGID) sets *PGID the terminal FD's current process group. Return -1 if there is an error. EMACS_SET_TTY_PGRP(int FD, int *PGID) sets the terminal FD's current process group to *PGID. Return -1 if there is an error. */ #ifdef HPUX /* HPUX tty process group stuff doesn't work, says the anonymous voice from the past. */ #else #ifdef TIOCGPGRP #define EMACS_HAVE_TTY_PGRP #else #ifdef HAVE_TERMIOS #define EMACS_HAVE_TTY_PGRP #endif #endif #endif #ifdef EMACS_HAVE_TTY_PGRP #ifdef HAVE_TERMIOS #define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd))) #define EMACS_SET_TTY_PGRP(fd, pgid) (*(pgid) = tcsetpgrp ((fd))) #else #ifdef TIOCSPGRP #define EMACS_GET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCGPGRP, (pgid))) #define EMACS_SET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCSPGRP, (pgid))) #endif #endif #else /* Just ignore this for now and hope for the best */ #define EMACS_GET_TTY_PGRP(fd, pgid) 0 #endif /* Manipulate a TTY's input/output processing parameters. */ /* struct emacs_tty is a structure used to hold the current tty parameters. If the terminal has several structures describing its state, for example a struct tchars, a struct sgttyb, a struct tchars, a struct ltchars, and a struct pagechars, struct 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_SET_TTY (int FD, struct emacs_tty *P, int waitp) 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. 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 advantage to using tabs over spaces. */ /* 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. */ struct emacs_tty { /* There is always one of the following elements, so there is no need for dummy get and set definitions. */ #ifdef HAVE_TERMIOS struct termios main; #else #ifdef HAVE_TERMIO struct termio main; #else #ifdef VMS struct sensemode main; #else struct sgttyb main; #endif #endif #endif #ifdef HAVE_TERMIOS #define HAVE_TCATTR #endif #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) \ 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) \ 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 #endif #ifdef TIOCGLTC struct ltchars ltchars; #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 struct tchars tchars; int lmode; #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 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)) #ifdef HAVE_TERMIOS #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) #else /* not def HAVE_TERMIOS */ #ifdef HAVE_TERMIO #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ #ifdef VMS #define EMACS_TTY_TABS_OK(p) (((p)->main.tt_char & TT$M_MECHTAB) != 0) #else #define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS) #endif /* not def VMS */ #endif /* not def HAVE_TERMIO */ #endif /* not def HAVE_TERMIOS */