[xemacs-hg @ 2002-05-28 08:44:22 by ben] merge my stderr-proc ws make-docfile.c: Fix places where we forget to check for EOF. code-init.el: Don't use CRLF conversion by default on process output. CMD.EXE and friends work both ways but Cygwin programs don't like the CRs. code-process.el, multicast.el, process.el: Removed. Improvements to call-process-internal: -- allows a buffer to be specified for input and stderr output -- use it on all systems -- implement C-g as documented -- clean up and comment call-process-region uses new call-process facilities; no temp file. remove duplicate funs in process.el. comment exactly how coding systems work and fix various problems. open-multicast-group now does similar coding-system frobbing to open-network-stream. dumped-lisp.el, faces.el, msw-faces.el: Fix some hidden errors due to code not being defined at the right time. xemacs.mak: Add -DSTRICT. ================================================================ ALLOW SEPARATION OF STDOUT AND STDERR IN PROCESSES ================================================================ Standard output and standard error can be processed separately in a process. Each can have its own buffer, its own mark in that buffer, and its filter function. You can specify a separate buffer for stderr in `start-process' to get things started, or use the new primitives: set-process-stderr-buffer process-stderr-buffer process-stderr-mark set-process-stderr-filter process-stderr-filter Also, process-send-region takes a 4th optional arg, a buffer. Currently always uses a pipe() under Unix to read the error output. (#### Would a PTY be better?) sysdep.h, sysproc.h, unexfreebsd.c, unexsunos4.c, nt.c, emacs.c, callproc.c, symsinit.h, sysdep.c, Makefile.in.in, process-unix.c: Delete callproc.c. Move child_setup() to process-unix.c. wait_for_termination() now only needed on a few really old systems. console-msw.h, event-Xt.c, event-msw.c, event-stream.c, event-tty.c, event-unixoid.c, events.h, process-nt.c, process-unix.c, process.c, process.h, procimpl.h: Rewrite the process methods to handle a separate channel for error input. Create Lstreams for reading in the error channel. Many process methods need change. In general the changes are fairly clear as they involve duplicating what's used for reading the normal stdout and changing for stderr -- although tedious, as such changes are required throughout the entire process code. Rewrote the code that reads process output to do two loops, one for stdout and one for stderr. gpmevent.c, tooltalk.c: set_process_filter takes an argument for stderr. ================================================================ NEW ERROR-TRAPPING MECHANISM ================================================================ Totally rewrite error trapping code to be unified and support more features. Basic function is call_trapping_problems(), which lets you specify, by means of flags, what sorts of problems you want trapped. these can include -- quit -- errors -- throws past the function -- creation of "display objects" (e.g. buffers) -- deletion of already-existing "display objects" (e.g. buffers) -- modification of already-existing buffers -- entering the debugger -- gc -- errors->warnings (ala suspended errors) etc. All other error funs rewritten in terms of this one. Various older mechanisms removed or rewritten. window.c, insdel.c, console.c, buffer.c, device.c, frame.c: When creating a display object, added call to note_object_created(), for use with trapping_problems mechanism. When deleting, call check_allowed_operation() and note_object deleted(). The trapping-problems code records the objects created since the call-trapping-problems began. Those objects can be deleted, but none others (i.e. previously existing ones). bytecode.c, cmdloop.c: internal_catch takes another arg. eval.c: Add long comments describing the "five lists" used to maintain state (backtrace, gcpro, specbind, etc.) in the Lisp engine. backtrace.h, eval.c: Implement trapping-problems mechanism, eliminate old mechanisms or redo in terms of new one. frame.c, gutter.c: Flush out the concept of "critical display section", defined by the in_display() var. Use an internal_bind() to get it reset, rather than just doing it at end, because there may be a non-local exit. event-msw.c, event-stream.c, console-msw.h, device.c, dialog-msw.c, frame.c, frame.h, intl.c, toolbar.c, menubar-msw.c, redisplay.c, alloc.c, menubar-x.c: Make use of new trapping-errors stuff and rewrite code based on old mechanisms. glyphs-widget.c, redisplay.h: Protect calling Lisp in redisplay. insdel.c: Protect hooks against deleting existing buffers. frame-msw.c: Use EQ, not EQUAL in hash tables whose keys are just numbers. Otherwise we run into stickiness in redisplay because internal_equal() can QUIT. ================================================================ SIGNAL, C-G CHANGES ================================================================ Here we change the way that C-g interacts with event reading. The idea is that a C-g occurring while we're reading a user event should be read as C-g, but elsewhere should be a QUIT. The former code did all sorts of bizarreness -- requiring that no QUIT occurs anywhere in event-reading code (impossible to enforce given the stuff called or Lisp code invoked), and having some weird system involving enqueue/dequeue of a C-g and interaction with Vquit_flag -- and it didn't work. Now, we simply enclose all code where we want C-g read as an event with {begin/end}_dont_check_for_quit(). This completely turns off the mechanism that checks (and may remove or alter) C-g in the read-ahead queues, so we just get the C-g normal. Signal.c documents this very carefully. cmdloop.c: Correct use of dont_check_for_quit to new scheme, remove old out-of-date comments. event-stream.c: Fix C-g handling to actually work. device-x.c: Disable quit checking when err out. signal.c: Cleanup. Add large descriptive comment. process-unix.c, process-nt.c, sysdep.c: Use QUIT instead of REALLY_QUIT. It's not necessary to use REALLY_QUIT and just confuses the issue. lisp.h: Comment quit handlers. ================================================================ CONS CHANGES ================================================================ free_cons() now takes a Lisp_Object not the result of XCONS(). car and cdr have been renamed so that they don't get used directly; go through XCAR(), XCDR() instead. alloc.c, dired.c, editfns.c, emodules.c, fns.c, glyphs-msw.c, glyphs-x.c, glyphs.c, keymap.c, minibuf.c, search.c, eval.c, lread.c, lisp.h: Correct free_cons calling convention: now takes Lisp_Object, not Lisp_Cons chartab.c: Eliminate direct use of ->car, ->cdr, should be black box. callint.c: Rewrote using EXTERNAL_LIST_LOOP to avoid use of Lisp_Cons. ================================================================ USE INTERNAL-BIND-* ================================================================ eval.c: Cleanups of these funs. alloc.c, fileio.c, undo.c, specifier.c, text.c, profile.c, lread.c, redisplay.c, menubar-x.c, macros.c: Rewrote to use internal_bind_int() and internal_bind_lisp_object() in place of whatever varied and cumbersome mechanisms were formerly there. ================================================================ SPECBIND SANITY ================================================================ backtrace.h: - Improved comments backtrace.h, bytecode.c, eval.c: Add new mechanism check_specbind_stack_sanity() for sanity checking code each time the catchlist or specbind stack change. Removed older prototype of same mechanism. ================================================================ MISC ================================================================ lisp.h, insdel.c, window.c, device.c, console.c, buffer.c: Fleshed out authorship. device-msw.c: Correct bad Unicode-ization. print.c: Be more careful when not initialized or in fatal error handling. search.c: Eliminate running_asynch_code, an FSF holdover. alloc.c: Added comments about gc-cons-threshold. dialog-x.c: Use begin_gc_forbidden() around code to build up a widget value tree, like in menubar-x.c. gui.c: Use Qunbound not Qnil as the default for gethash. lisp-disunion.h, lisp-union.h: Added warnings on use of VOID_TO_LISP(). lisp.h: Use ERROR_CHECK_STRUCTURES to turn on ERROR_CHECK_TRAPPING_PROBLEMS and ERROR_CHECK_TYPECHECK lisp.h: Add assert_with_message. lisp.h: Add macros for gcproing entire arrays. (You could do this before but it required manual twiddling the gcpro structure.) lisp.h: Add prototypes for new functions defined elsewhere.

/* Definitions file for XEmacs running on Sequent DYNIX/ptx 1.x/2.x
   Copyright (C) 1987, 1990 Free Software Foundation, Inc.

This file is part of XEmacs.

XEmacs 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.

XEmacs 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 XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: FSF 19.31. */

/* This file was written by Bill Burton <billb@progress.com>.  Parts were
   adapted from m-ptx1-2.h and process.c as distributed with the Emacs 18.57
   on the Sequent Public software tape. Other parts were adapted from
   usg5-4.h. */

/* Use the SysVr3 file for base configuration even though much is changed.  */
#define DONT_DEFINE_NO_REMAP /* `static' hack not needed */
#include "usg5-3.h"

/* Undo these defines because they are incorrect or need to be changed.  */
#undef USG_SHARED_LIBRARIES

/* PTX has System V streams.  */
#define SYSV_STREAMS
 
/* Leave out -lPW since it conflicts with term.o and because we're not sure 
   if the alloca found there by autoconf should be trusted on PTX.  */
#define LIB_STANDARD "-lc"

#ifndef HAVE_SOCKETS /* determined by configure */
#define NO_SUBPROCESSES
#endif

#ifdef HAVE_X_WINDOWS

/* This is also defined so that lib-src/profile can link.  */
#define LIBS_SYSTEM "-lseq"

#else /* ! HAVE_X_WINDOWS */

#ifdef HAVE_SOCKETS
#define LIBS_SYSTEM "-lsocket -linet -lnsl -lseq"
#else
#define LIBS_SYSTEM "-lseq"
#endif

#endif /* ! HAVE_X_WINDOWS */

/* No <sioctl.h> */
#define NO_SIOCTL_H

/* If we have X windows, configure should find gettimeofday in -lX11.
   Since we emulate gettimeofday below, we really have it anyway.  */
#ifndef HAVE_GETTIMEOFDAY
#define HAVE_GETTIMEOFDAY
#endif

#ifdef emacs
#include <sys/conf.h>

/*#define BROKEN_SIGIO*/	/* SIGIO is already undef'd elsewhere. PTX
                                   has SIGIO, but it's just an alias for
                                   SIGPOLL.  */

/* Emulate gettimeofday() except for the time zone information which Emacs
   doesn't use anyway.  Get_process_stats() is in -lseq.  */
#include <sys/procstats.h>
#define gettimeofday(tp, tzp) get_process_stats (tp, PS_SELF, 0, 0)

/* Define timezone since it's not in sys/time.h.  Unfortunately, this causes
   trouble when building with X since this struct is defined in
   <X11/Xos.h>.  */
struct timezone
{
  int tz_minuteswest;
  int tz_dsttime;
};

/* Unfortunately, this define is not checked in all files including
   <X11/Xos.h> so we can't use it.  */
/* #define XOS_NEEDS_TIME_H */

/* In ptx/WINDOWS, this prevents problems with the timezone struct being
   redefined in <X11/Xos.h>.  It seems the necessary include files are
   included via systime.h so leaving them out here is not a problem.  This
   may not work in X11R5 or X11R6.  */
#define __TIMEVAL__

#endif  /* emacs */

/* PTX has termios */
#undef BROKEN_TIOCGWINSZ
#undef BROKEN_TIOCGETC

/* Provide pty support which is defined into process.c:allocate_pty.
   Basic ideas for handling getpseudotty were lifted from process.c in
   Emacs 18.57 included on the Sequent Public Software tape.  However, this
   implementation bears almost no resemblance to the original and does not
   require that process.c be patched.  */
#define PTY_ITERATION						\
  char *mastername, *slavename;					\
  while (1)

#define PTY_OPEN						\
  if (failed_count++ >= 5) break;				\
  if ((fd = getpseudotty (&slavename, &mastername)) < 0) {	\
    error("Out of ptys.");					\
    continue;							\
  }								\
  strcpy (pty_name, slavename);

/* Define these to prevent the default logic in process.c:allocate_pty 
   from being used.  */
#define PTY_NAME_SPRINTF
#define PTY_TTY_NAME_SPRINTF

/* PTX doesn't seem to have memmove.  */
#define MEMMOVE_MISSING