emacs/gnu.emacs
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/emacs.git synced 2026-09-15 02:06:35 -04:00
Code Issues Actions Packages Projects Releases Wiki Activity
gnu.emacs/src/syssignal.h
Paul Eggert 68c45bf065 Add support for large files, 64-bit Solaris, system locale codings. 
* Makefile.in (emacs): Set the LC_ALL environment variable to "C"
when dumping, so that the dumped Emacs doesn't have stray locale info.
(dired.o): Depend on systime.h.
(editfns.o): Depend on coding.h.

* alloc.c, buffer.c, callproc.c, ccl.c, charset.c, coding.c, data.c,
dispnew.c, editfns.c, emacs.c, filelock.c, floatfns.c, hftctl.c,
keyboard.c, process.c, sysdep.c, unexelf.c, unexhp9k800.c,
unexsunos4.c, vmsfns.c, vmsgmalloc.c, w32faces.c, w32menu.c, w32term.c,
w32xfns.c, xfaces.c, xfns.c, xmenu.c, xterm.c:
Include <config.h> before any system include files.

* alloc.c, buffer.c, ccl.c, data.c, editfns.c, emacs.c, eval.c,
fileio.c, filelock.c, frame.c, insdel.c, keymap.c, lread.c,
m/alpha.h, print.c, search.c, sysdep.c, xdisp.c, xfaces.c, xfns.c,
xmenu.c, xterm.c:
Do not include <stdlib.h>, as <config.h> does this now.

* callproc.c (Fcall_process):
Synchronize messages locale before invoking strerror.
Decode resulting string with locale-coding-system.

* coding.c (Vlocale_coding_system): New var.
(syms_of_coding): Adjust to above change.
(emacs_strerror): New function.

* coding.h (emacs_strerror, Vlocale_coding_system): New decls.

* config.in (HAVE_STDIO_EXT_H, HAVE_TM_GMTOFF, HAVE___FPENDING,
HAVE_FTELLO, HAVE_GETLOADAVG, HAVE_MBLEN, HAVE_MBRLEN,
HAVE_STRSIGNAL): New macros.
(BITS_PER_LONG): Default to 64 if _LP64 is defined.
<stdlib.h>: Include if HAVE_STDLIB_H is defined and NOT_C_CODE isn't.

* dired.c: Include "systime.h".
(Ffile_attributes): Do not cast s.st_size to int; this loses
information if int is 32 bits but st_size and EMACS_INT are larger.
Treat large device numbers like large inode numbers.

* dispnew.c (PENDING_OUTPUT_COUNT): Use __fpending if available.

* editfns.c: Include coding.h.
(emacs_strftime): Remove decl.
(emacs_strftimeu): New decl.
(emacs_memftimeu): Renamed from emacs_memftime; new arg UT.
Use emacs_strftimeu instead of emacs_strftime.
(Fformat_time_string): Convert format string using
Vlocale_coding_system, and convert result back.  Synchronize time
locale before invoking lower level function.  Invoke
emacs_memftimeu, passing ut, instead of emacs_memftime.

* emacs.c: Include <locale.h> if HAVE_SETLOCALE is defined.
(Vmessages_locale, Vprevious_messages_locale, Vtime_locale,
Vprevious_time_locale): New variables.
(main): Invoke setlocale early, so that initial error messages are
localized properly.  But skip locale-setting if LC_ALL is "C".
Fix up locale when it's safe to do so.
(fixup_locale): Moved here from xterm.c.
(synchronize_locale, synchronize_time_locale,
synchronize_messages_locale): New functions.
(syms_of_emacs): Accommodate above changes.

* fileio.c (report_file_error): Convert strerror output according
to Vlocale_coding_system.
(Finsert_file_contents): Check for arithmetic overflow in
computations that depend on file size.  Report IO errors
with emacs_strerror, not strerror.

* fns.c (Fgethash): Declare dflt parameter.

* gmalloc.c: Do not define const to nothing if HAVE_CONFIG_H
is defined; that's config.h's job.

* lisp.h (EMACS_INT, BITS_PER_EMACS_INT, EMACS_UINT): If _LP64,
default these values to long, BITS_PER_LONG, and unsigned long.
(VALBITS, MARKBIT, XINT): Do not assume 32-bit EMACS_INT.
(PNTR_COMPARISON_TYPE): Default to EMACS_UINT, not to unsigned int.
(code_convert_string_norecord, fixup_locale,
synchronize_messages_locale, synchronize_time_locale,
emacs_open, emacs_close, emacs_read, emacs_write): New decls.
All Emacs callers of open, close, read, write changed to use
emacs_open, emacs_close, emacs_read, emacs_write.

* lread.c (file_offset, file_tell): New macros.  All uses of ftell
changed to file_tell.
(saved_doc_string_position, prev_saved_doc_string_position): Now
of type file_offset.
(init_lread): Do not fix locale here; fixup_locale now does this.

* m/amdahl.h, s/usg5-4.h:
(NSIG): Remove.
(NSIG_MINIMUM): New macro.

* m/cydra5.h, m/dpx2.h, m/mips.h, m/pfa50.h, m/sps7.h, m/stride.h,
m/ustation.h, s/gnu-linux.h, s/hpux.h, s/iris3-5.h, s/iris3-6.h,
s/umips.h, s/usg5-4.h:
(SIGIO): Do not undef.
(BROKEN_SIGIO): New macro.

* m/ustation.h:
(SIGTSTP): Do not undef.
(BROKEN_SIGTSTP): New macro.

* s/gnu-linux.h:
(SIGPOLL, SIGURG): Do not undef.
(BROKEN_SIGPOLL, BROKEN_SIGURG): New macros.

* s/ptx4.h:
(SIGINFO): Do not undef.
(BROKEN_SIGINFO): New macros.

* m/delta.h, s/ptx.h, s/template.h: Doc fix.

* mktime.c, strftime.c: Update to glibc 2.1.2 version, with
some Emacs-related changes merged.

* print.c (float_to_string): Prepend "-" to representation of a
NaN if the NaN is negative.

* process.c (sys_siglist): Omit if HAVE_STRSIGNAL.
(wait_reading_process_input): Use emacs_strerror, not strerror.

* process.c (status_message, sigchld_handler): Synchronize locale,
then use strsignal istead of sys_siglist.
* w32proc.c (sys_wait): Likewise.

* s/aix3-1.h, s/bsd4-1.h, s/dgux.h, s/gnu-linux.h, s/hiuxmpp.h,
s/hpux.h, s/iris3-5.h, s/iris3-6.h, s/irix3-3.h, s/osf1.h, s/rtu.h,
s/sunos4-1.h, s/unipl5-0.h, s/unipl5-2.h, s/usg5-0.h, s/usg5-2-2.h,
s/usg5-2.h, s/usg5-3.h, s/xenix.h:
(open, close, read, write, INTERRUPTIBLE_OPEN,
INTERRUPTIBLE_CLOSE, INTERRUPTIBLE_IO): Remove.

* s/sol2-5.h (_LARGEFILE_SOURCE, _FILE_OFFSET_BITS): New macros.
* sysdep.c (sys_read, sys_write, read, write, sys_close, close,
sys_open, open): Remove.
(emacs_open, emacs_close, emacs_read, emacs_write): Always define;
the old INTERRUPTIBLE_OPEN, INTERRUPTIBLE_CLOSE, and INTERRUPTIBLE_IO
macros are no longer used.
(emacs_open): Renamed from sys_open.  Merge BSD4_1 version.
(emacs_close): Renamed from sys_close.
(emacs_read): Renamed from sys_read.
(emacs_write): Renamed from sys_write.
(sys_siglist): Do not declare if HAVE_STRSIGNAL.
(dup2): Do not print error on failure; the real dup2 doesn't.
(strsignal): New function, defined if !HAVE_STRSIGNAL.

* syssignal.h (SIGINFO): Undef if defined and if BROKEN_SIGINFO
is defined.
(SIGIO, SIGPOLL, SIGTSTP, SIGURG): Likewise.
(NSIG): If less than NSIG_MINIMUM, define to NSIG_MINIMUM.
(strsignal): Declare if !HAVE_STRSIGNAL.

* unexelf.c (ElfBitsW, ELFSIZE, ElfExpandBitsW): New macros.
(ElfW): Define in terms of ElfExpandBitsW.

* w32proc.c (sys_siglist): Remove decl.

* xdisp.c (decode_mode_spec): 3rd arg is int, not char, to comply
with ANSI C.
(display_string): Declare face_string_pos arg.

* xfns.c (Fx_show_tip): Declare timeout param.

* xterm.c: No need to include locale.h.
(x_alloc_lighter_color, x_setup_relief_color):
Pass arg as double, not float, for compatibility with ANSI C.
(fixup_locale): Move to emacs.c.
(x_term_init): Do not setlocale or fixup locale; the main program
does this now.
1999-10-19 07:25:11 +00:00

180 lines
4.8 KiB
C
Raw Blame History

/* syssignal.h - System-dependent definitions for signals.
Copyright (C) 1993, 1999 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 2, 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, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifdef POSIX_SIGNALS
/* Don't #include <signal.h>. That header should always be #included
before "config.h", because some configuration files (like s/hpux.h)
indicate that SIGIO doesn't work by #undef-ing SIGIO. If this file
#includes <signal.h>, then that will re-#define SIGIO and confuse
things. */
#define SIGMASKTYPE sigset_t
#define SIGEMPTYMASK (empty_mask)
#define SIGFULLMASK (full_mask)
extern sigset_t empty_mask, full_mask;
extern void init_signals P_ ((void));
/* POSIX pretty much destroys any possibility of writing sigmask as a
macro in standard C. We always define our own version because the
predefined macro in Glibc 2.1 is only provided for compatility for old
programs that use int as signal mask type. */
#undef sigmask
#ifdef __GNUC__
#define sigmask(SIG) \
({ \
sigset_t _mask; \
sigemptyset (&_mask); \
sigaddset (&_mask, SIG); \
_mask; \
})
#else /* ! defined (__GNUC__) */
extern sigset_t sys_sigmask ();
#define sigmask(SIG) (sys_sigmask (SIG))
#endif /* ! defined (__GNUC__) */
#undef sigpause
#define sigpause(MASK) sigsuspend (&(MASK))
#define sigblock(SIG) sys_sigblock (SIG)
#define sigunblock(SIG) sys_sigunblock (SIG)
#ifndef sigsetmask
#define sigsetmask(SIG) sys_sigsetmask (SIG)
#endif
#define sighold(SIG) ONLY_USED_IN_BSD_4_1
#define sigrelse(SIG) ONLY_USED_IN_BSD_4_1
#undef signal
#define signal(SIG,ACT) sys_signal(SIG,ACT)
/* Whether this is what all systems want or not, this is what
appears to be assumed in the source, for example data.c:arith_error. */
typedef RETSIGTYPE (*signal_handler_t) (/*int*/);
signal_handler_t sys_signal P_ ((int signal_number, signal_handler_t action));
sigset_t sys_sigblock P_ ((sigset_t new_mask));
sigset_t sys_sigunblock P_ ((sigset_t new_mask));
sigset_t sys_sigsetmask P_ ((sigset_t new_mask));
#define sys_sigdel(MASK,SIG) sigdelset (&MASK,SIG)
#else /* ! defined (POSIX_SIGNALS) */
#ifdef USG5_4
#ifndef sigblock
#define sigblock(sig) (sigprocmask (SIG_BLOCK, SIGEMPTYMASK | sig, NULL))
#endif
#define sigunblock(sig) (sigprocmask (SIG_SETMASK, SIGFULLMASK & ~(sig), NULL))
#else
#ifdef USG
#define sigunblock(sig)
#else
#define sigunblock(SIG) \
{ SIGMASKTYPE omask = sigblock (SIGEMPTYMASK); sigsetmask (omask & ~SIG); }
#endif /* ! defined (USG) */
#endif /* ! defined (USG5_4) */
#endif /* ! defined (POSIX_SIGNALS) */
#ifndef SIGMASKTYPE
#define SIGMASKTYPE int
#endif
#ifndef SIGEMPTYMASK
#define SIGEMPTYMASK (0)
#endif
#ifndef SIGFULLMASK
#define SIGFULLMASK (0xffffffff)
#endif
#ifndef sigmask
#define sigmask(no) (1L << ((no) - 1))
#endif
#ifndef sigunblock
#define sigunblock(SIG) \
{ SIGMASKTYPE omask = sigblock (SIGFULLMASK); sigsetmask (omask & ~SIG); }
#endif
#ifndef BSD4_1
#define sigfree() sigsetmask (SIGEMPTYMASK)
#endif /* not BSD4_1 */
#if defined (SIGINFO) && defined (BROKEN_SIGINFO)
#undef SIGINFO
#endif
#if defined (SIGIO) && defined (BROKEN_SIGIO)
#undef SIGIO
#endif
#if defined (SIGPOLL) && defined (BROKEN_SIGPOLL)
#undef SIGPOLL
#endif
#if defined (SIGTSTP) && defined (BROKEN_SIGTSTP)
#undef SIGTSTP
#endif
#if defined (SIGURG) && defined (BROKEN_SIGURG)
#undef SIGURG
#endif
#if NSIG < NSIG_MINIMUM
# ifdef NSIG
# undef NSIG
# endif
# define NSIG NSIG_MINIMUM
#endif
#ifdef BSD4_1
#define SIGIO SIGTINT
/* sigfree is in sysdep.c */
#endif /* BSD4_1 */
/* On bsd, [man says] kill does not accept a negative number to kill a pgrp.
Must do that using the killpg call. */
#ifdef BSD_SYSTEM
#define EMACS_KILLPG(gid, signo) (killpg ( (gid), (signo)))
#else
#ifdef WINDOWSNT
#define EMACS_KILLPG(gid, signo) (kill (gid, signo))
#else
#define EMACS_KILLPG(gid, signo) (kill (-(gid), (signo)))
#endif
#endif
/* Define SIGCHLD as an alias for SIGCLD. There are many conditionals
testing SIGCHLD. */
#ifndef VMS
#ifdef SIGCLD
#ifndef SIGCHLD
#define SIGCHLD SIGCLD
#endif /* SIGCHLD */
#endif /* ! defined (SIGCLD) */
#endif /* VMS */
#ifndef HAVE_STRSIGNAL
/* strsignal is in sysdep.c */
char *strsignal ();
#endif
Reference in a new issue View git blame Copy permalink