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- /* rldefs.h -- an attempt to isolate some of the system-specific defines
- for readline. This should be included after any files that define
- system-specific constants like _POSIX_VERSION or USG. */
-
- /* Copyright (C) 1987,1989 Free Software Foundation, Inc.
-
- This file contains the Readline Library (the Library), a set of
- routines for providing Emacs style line input to programs that ask
- for it.
-
- The Library 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.
-
- The Library 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.
-
- The GNU General Public License is often shipped with GNU software, and
- is generally kept in a file called COPYING or LICENSE. If you do not
- have a copy of the license, write to the Free Software Foundation,
- 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #if !defined (_RLDEFS_H)
- #define _RLDEFS_H
-
- #if defined (__GNUC__)
- # undef alloca
- # define alloca __builtin_alloca
- #else
- # if defined (sparc) || defined (HAVE_ALLOCA_H)
- # include <alloca.h>
- # endif
- #endif
-
-
- #define NEW_TTY_DRIVER
- #define HAVE_BSD_SIGNALS
- /* #define USE_XON_XOFF */
-
- #if defined(__MSDOS__) || defined(WIN32)
- #define NO_SYS_FILE
- #define SIGALRM 1234
- #undef NEW_TTY_DRIVER
- #undef HAVE_BSD_SIGNALS
- #undef NEW_TTY_DRIVER
- #undef HAVE_BSD_SIGNALS
- #define MINIMAL
- #endif
-
- #if defined (__linux__)
- # include <termcap.h>
- #endif /* __linux__ */
-
- /* Some USG machines have BSD signal handling (sigblock, sigsetmask, etc.) */
- /* CYGNUS LOCAL accept __hpux as well as hpux for HP compiler in ANSI mode. */
- #if defined (USG) && !(defined (hpux) || defined (__hpux))
- # undef HAVE_BSD_SIGNALS
- #endif
-
- /* System V machines use termio. */
- #if !defined (_POSIX_VERSION)
- /* CYGNUS LOCAL accept __hpux as well as hpux for HP compiler in ANSI mode. */
- # if defined (USG) || defined (hpux) || defined (__hpux) || defined (Xenix) || defined (sgi) || defined (DGUX)
- # undef NEW_TTY_DRIVER
- # define TERMIO_TTY_DRIVER
- # include <termio.h>
- # if !defined (TCOON)
- # define TCOON 1
- # endif
- # endif /* USG || hpux || Xenix || sgi || DUGX */
- #endif /* !_POSIX_VERSION */
-
- /* Posix systems use termios and the Posix signal functions. */
- #if defined (_POSIX_VERSION)
- # if !defined (TERMIOS_MISSING)
- # undef NEW_TTY_DRIVER
- # define TERMIOS_TTY_DRIVER
- # include <termios.h>
- # endif /* !TERMIOS_MISSING */
- # define HAVE_POSIX_SIGNALS
- # if !defined (O_NDELAY)
- # define O_NDELAY O_NONBLOCK /* Posix-style non-blocking i/o */
- # endif /* O_NDELAY */
- #endif /* _POSIX_VERSION */
-
- /* System V.3 machines have the old 4.1 BSD `reliable' signal interface. */
- #if !defined (HAVE_BSD_SIGNALS) && !defined (HAVE_POSIX_SIGNALS)
- # if defined (USGr3)
- # if !defined (HAVE_USG_SIGHOLD)
- # define HAVE_USG_SIGHOLD
- # endif /* !HAVE_USG_SIGHOLD */
- # endif /* USGr3 */
- #endif /* !HAVE_BSD_SIGNALS && !HAVE_POSIX_SIGNALS */
-
- /* Other (BSD) machines use sgtty. */
- #if defined (NEW_TTY_DRIVER)
- # include <sgtty.h>
- #endif
-
- /* Define _POSIX_VDISABLE if we are not using the `new' tty driver and
- it is not already defined. It is used both to determine if a
- special character is disabled and to disable certain special
- characters. Posix systems should set to 0, USG systems to -1. */
- #if !defined (NEW_TTY_DRIVER) && !defined (_POSIX_VDISABLE)
- # if defined (_POSIX_VERSION)
- # define _POSIX_VDISABLE 0
- # else /* !_POSIX_VERSION */
- # define _POSIX_VDISABLE -1
- # endif /* !_POSIX_VERSION */
- #endif /* !NEW_TTY_DRIVER && !_POSIX_VDISABLE */
-
- #if 1
- # define D_NAMLEN(d) strlen ((d)->d_name)
- #else /* !1 */
-
- #if !defined (SHELL) && (defined (_POSIX_VERSION) || defined (USGr3))
- # if !defined (HAVE_DIRENT_H)
- # define HAVE_DIRENT_H
- # endif /* !HAVE_DIRENT_H */
- #endif /* !SHELL && (_POSIX_VERSION || USGr3) */
-
- #if defined (HAVE_DIRENT_H)
- # include <dirent.h>
- # if !defined (direct)
- # define direct dirent
- # endif /* !direct */
- # define D_NAMLEN(d) strlen ((d)->d_name)
- #else /* !HAVE_DIRENT_H */
- # define D_NAMLEN(d) ((d)->d_namlen)
- # if defined (USG)
- # if defined (Xenix)
- # include <sys/ndir.h>
- # else /* !Xenix (but USG...) */
- # include "ndir.h"
- # endif /* !Xenix */
- # else /* !USG */
- # include <sys/dir.h>
- # endif /* !USG */
- #endif /* !HAVE_DIRENT_H */
- #endif /* !1 */
-
- #if defined (USG) && defined (TIOCGWINSZ) && !defined (Linux)
- # include <sys/stream.h>
- # if defined (HAVE_SYS_PTEM_H)
- # include <sys/ptem.h>
- # endif /* HAVE_SYS_PTEM_H */
- # if defined (HAVE_SYS_PTE_H)
- # include <sys/pte.h>
- # endif /* HAVE_SYS_PTE_H */
- #endif /* USG && TIOCGWINSZ && !Linux */
-
- /* Posix macro to check file in statbuf for directory-ness.
- This requires that <sys/stat.h> be included before this test. */
- #if defined (S_IFDIR) && !defined (S_ISDIR)
- #define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
- #endif
- /* Posix macro to check file in statbuf for file-ness.
- This requires that <sys/stat.h> be included before this test. */
- #if defined (S_IFREG) && !defined (S_ISREG)
- #define S_ISREG(m) (((m)&S_IFMT) == S_IFREG)
- #endif
-
- #if !defined (strchr) && !defined (__STDC__)
- extern char *strchr (), *strrchr ();
- #endif /* !strchr && !__STDC__ */
-
- #if defined (HAVE_VARARGS_H)
- # include <varargs.h>
- #endif /* HAVE_VARARGS_H */
-
- /* This definition is needed by readline.c, rltty.c, and signals.c. */
- /* If on, then readline handles signals in a way that doesn't screw. */
- #define HANDLE_SIGNALS
-
- #if !defined (emacs_mode)
- # define no_mode -1
- # define vi_mode 0
- # define emacs_mode 1
- #endif
-
- /* Define some macros for dealing with assorted signalling disciplines.
-
- These macros provide a way to use signal blocking and disabling
- without smothering your code in a pile of #ifdef's.
-
- SIGNALS_UNBLOCK; Stop blocking all signals.
-
- {
- SIGNALS_DECLARE_SAVED (name); Declare a variable to save the
- signal blocking state.
- ...
- SIGNALS_BLOCK (SIGSTOP, name); Block a signal, and save the previous
- state for restoration later.
- ...
- SIGNALS_RESTORE (name); Restore previous signals.
- }
-
- */
-
- #ifdef HAVE_POSIX_SIGNALS
- /* POSIX signals */
-
- #define SIGNALS_UNBLOCK \
- do { sigset_t set; \
- sigemptyset (&set); \
- sigprocmask (SIG_SETMASK, &set, (sigset_t *)NULL); \
- } while (0)
-
- #define SIGNALS_DECLARE_SAVED(name) sigset_t name
-
- #define SIGNALS_BLOCK(SIG, saved) \
- do { sigset_t set; \
- sigemptyset (&set); \
- sigaddset (&set, SIG); \
- sigprocmask (SIG_BLOCK, &set, &saved); \
- } while (0)
-
- #define SIGNALS_RESTORE(saved) \
- sigprocmask (SIG_SETMASK, &saved, (sigset_t *)NULL)
-
-
- #else /* HAVE_POSIX_SIGNALS */
- #ifdef HAVE_BSD_SIGNALS
- /* BSD signals */
-
- #define SIGNALS_UNBLOCK sigsetmask (0)
- #define SIGNALS_DECLARE_SAVED(name) int name
- #define SIGNALS_BLOCK(SIG, saved) saved = sigblock (sigmask (SIG))
- #define SIGNALS_RESTORE(saved) sigsetmask (saved)
-
-
- #else /* HAVE_BSD_SIGNALS */
- /* None of the Above */
-
- #define SIGNALS_UNBLOCK /* nothing */
- #define SIGNALS_DECLARE_SAVED(name) /* nothing */
- #define SIGNALS_BLOCK(SIG, saved) /* nothing */
- #define SIGNALS_RESTORE(saved) /* nothing */
-
-
- #endif /* HAVE_BSD_SIGNALS */
- #endif /* HAVE_POSIX_SIGNALS */
-
- #if !defined (strchr)
- extern char *strchr ();
- #endif
- #if !defined (strrchr)
- extern char *strrchr ();
- #endif
- #ifdef __STDC__
- #include <stddef.h>
- extern size_t strlen (const char *s);
- #endif /* __STDC__ */
-
- /* End of signal handling definitions. */
- #endif /* !_RLDEFS_H */
-