Mercurial > hg > xemacs-beta
view src/tooltalk.c @ 665:fdefd0186b75
[xemacs-hg @ 2001-09-20 06:28:42 by ben]
The great integral types renaming.
The purpose of this is to rationalize the names used for various
integral types, so that they match their intended uses and follow
consist conventions, and eliminate types that were not semantically
different from each other.
The conventions are:
-- All integral types that measure quantities of anything are
signed. Some people disagree vociferously with this, but their
arguments are mostly theoretical, and are vastly outweighed by
the practical headaches of mixing signed and unsigned values,
and more importantly by the far increased likelihood of
inadvertent bugs: Because of the broken "viral" nature of
unsigned quantities in C (operations involving mixed
signed/unsigned are done unsigned, when exactly the opposite is
nearly always wanted), even a single error in declaring a
quantity unsigned that should be signed, or even the even more
subtle error of comparing signed and unsigned values and
forgetting the necessary cast, can be catastrophic, as
comparisons will yield wrong results. -Wsign-compare is turned
on specifically to catch this, but this tends to result in a
great number of warnings when mixing signed and unsigned, and
the casts are annoying. More has been written on this
elsewhere.
-- All such quantity types just mentioned boil down to EMACS_INT,
which is 32 bits on 32-bit machines and 64 bits on 64-bit
machines. This is guaranteed to be the same size as Lisp
objects of type `int', and (as far as I can tell) of size_t
(unsigned!) and ssize_t. The only type below that is not an
EMACS_INT is Hashcode, which is an unsigned value of the same
size as EMACS_INT.
-- Type names should be relatively short (no more than 10
characters or so), with the first letter capitalized and no
underscores if they can at all be avoided.
-- "count" == a zero-based measurement of some quantity. Includes
sizes, offsets, and indexes.
-- "bpos" == a one-based measurement of a position in a buffer.
"Charbpos" and "Bytebpos" count text in the buffer, rather than
bytes in memory; thus Bytebpos does not directly correspond to
the memory representation. Use "Membpos" for this.
-- "Char" refers to internal-format characters, not to the C type
"char", which is really a byte.
-- For the actual name changes, see the script below.
I ran the following script to do the conversion. (NOTE: This script
is idempotent. You can safely run it multiple times and it will
not screw up previous results -- in fact, it will do nothing if
nothing has changed. Thus, it can be run repeatedly as necessary
to handle patches coming in from old workspaces, or old branches.)
There are two tags, just before and just after the change:
`pre-integral-type-rename' and `post-integral-type-rename'. When
merging code from the main trunk into a branch, the best thing to
do is first merge up to `pre-integral-type-rename', then apply the
script and associated changes, then merge from
`post-integral-type-change' to the present. (Alternatively, just do
the merging in one operation; but you may then have a lot of
conflicts needing to be resolved by hand.)
Script `fixtypes.sh' follows:
----------------------------------- cut ------------------------------------
files="*.[ch] s/*.h m/*.h config.h.in ../configure.in Makefile.in.in ../lib-src/*.[ch] ../lwlib/*.[ch]"
gr Memory_Count Bytecount $files
gr Lstream_Data_Count Bytecount $files
gr Element_Count Elemcount $files
gr Hash_Code Hashcode $files
gr extcount bytecount $files
gr bufpos charbpos $files
gr bytind bytebpos $files
gr memind membpos $files
gr bufbyte intbyte $files
gr Extcount Bytecount $files
gr Bufpos Charbpos $files
gr Bytind Bytebpos $files
gr Memind Membpos $files
gr Bufbyte Intbyte $files
gr EXTCOUNT BYTECOUNT $files
gr BUFPOS CHARBPOS $files
gr BYTIND BYTEBPOS $files
gr MEMIND MEMBPOS $files
gr BUFBYTE INTBYTE $files
gr MEMORY_COUNT BYTECOUNT $files
gr LSTREAM_DATA_COUNT BYTECOUNT $files
gr ELEMENT_COUNT ELEMCOUNT $files
gr HASH_CODE HASHCODE $files
----------------------------------- cut ------------------------------------
`fixtypes.sh' is a Bourne-shell script; it uses 'gr':
----------------------------------- cut ------------------------------------
#!/bin/sh
# Usage is like this:
# gr FROM TO FILES ...
# globally replace FROM with TO in FILES. FROM and TO are regular expressions.
# backup files are stored in the `backup' directory.
from="$1"
to="$2"
shift 2
echo ${1+"$@"} | xargs global-replace "s/$from/$to/g"
----------------------------------- cut ------------------------------------
`gr' in turn uses a Perl script to do its real work,
`global-replace', which follows:
----------------------------------- cut ------------------------------------
: #-*- Perl -*-
### global-modify --- modify the contents of a file by a Perl expression
## Copyright (C) 1999 Martin Buchholz.
## Copyright (C) 2001 Ben Wing.
## Authors: Martin Buchholz <martin@xemacs.org>, Ben Wing <ben@xemacs.org>
## Maintainer: Ben Wing <ben@xemacs.org>
## Current Version: 1.0, May 5, 2001
# This program 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.
#
# This program 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.
eval 'exec perl -w -S $0 ${1+"$@"}'
if 0;
use strict;
use FileHandle;
use Carp;
use Getopt::Long;
use File::Basename;
(my $myName = $0) =~ s@.*/@@; my $usage="
Usage: $myName [--help] [--backup-dir=DIR] [--line-mode] [--hunk-mode]
PERLEXPR FILE ...
Globally modify a file, either line by line or in one big hunk.
Typical usage is like this:
[with GNU print, GNU xargs: guaranteed to handle spaces, quotes, etc.
in file names]
find . -name '*.[ch]' -print0 | xargs -0 $0 's/\bCONST\b/const/g'\n
[with non-GNU print, xargs]
find . -name '*.[ch]' -print | xargs $0 's/\bCONST\b/const/g'\n
The file is read in, either line by line (with --line-mode specified)
or in one big hunk (with --hunk-mode specified; it's the default), and
the Perl expression is then evalled with \$_ set to the line or hunk of
text, including the terminating newline if there is one. It should
destructively modify the value there, storing the changed result in \$_.
Files in which any modifications are made are backed up to the directory
specified using --backup-dir, or to `backup' by default. To disable this,
use --backup-dir= with no argument.
Hunk mode is the default because it is MUCH MUCH faster than line-by-line.
Use line-by-line only when it matters, e.g. you want to do a replacement
only once per line (the default without the `g' argument). Conversely,
when using hunk mode, *ALWAYS* use `g'; otherwise, you will only make one
replacement in the entire file!
";
my %options = ();
$Getopt::Long::ignorecase = 0;
&GetOptions (
\%options,
'help', 'backup-dir=s', 'line-mode', 'hunk-mode',
);
die $usage if $options{"help"} or @ARGV <= 1;
my $code = shift;
die $usage if grep (-d || ! -w, @ARGV);
sub SafeOpen {
open ((my $fh = new FileHandle), $_[0]);
confess "Can't open $_[0]: $!" if ! defined $fh;
return $fh;
}
sub SafeClose {
close $_[0] or confess "Can't close $_[0]: $!";
}
sub FileContents {
my $fh = SafeOpen ("< $_[0]");
my $olddollarslash = $/;
local $/ = undef;
my $contents = <$fh>;
$/ = $olddollarslash;
return $contents;
}
sub WriteStringToFile {
my $fh = SafeOpen ("> $_[0]");
binmode $fh;
print $fh $_[1] or confess "$_[0]: $!\n";
SafeClose $fh;
}
foreach my $file (@ARGV) {
my $changed_p = 0;
my $new_contents = "";
if ($options{"line-mode"}) {
my $fh = SafeOpen $file;
while (<$fh>) {
my $save_line = $_;
eval $code;
$changed_p = 1 if $save_line ne $_;
$new_contents .= $_;
}
} else {
my $orig_contents = $_ = FileContents $file;
eval $code;
if ($_ ne $orig_contents) {
$changed_p = 1;
$new_contents = $_;
}
}
if ($changed_p) {
my $backdir = $options{"backup-dir"};
$backdir = "backup" if !defined ($backdir);
if ($backdir) {
my ($name, $path, $suffix) = fileparse ($file, "");
my $backfulldir = $path . $backdir;
my $backfile = "$backfulldir/$name";
mkdir $backfulldir, 0755 unless -d $backfulldir;
print "modifying $file (original saved in $backfile)\n";
rename $file, $backfile;
}
WriteStringToFile ($file, $new_contents);
}
}
----------------------------------- cut ------------------------------------
In addition to those programs, I needed to fix up a few other
things, particularly relating to the duplicate definitions of
types, now that some types merged with others. Specifically:
1. in lisp.h, removed duplicate declarations of Bytecount. The
changed code should now look like this: (In each code snippet
below, the first and last lines are the same as the original, as
are all lines outside of those lines. That allows you to locate
the section to be replaced, and replace the stuff in that
section, verifying that there isn't anything new added that
would need to be kept.)
--------------------------------- snip -------------------------------------
/* Counts of bytes or chars */
typedef EMACS_INT Bytecount;
typedef EMACS_INT Charcount;
/* Counts of elements */
typedef EMACS_INT Elemcount;
/* Hash codes */
typedef unsigned long Hashcode;
/* ------------------------ dynamic arrays ------------------- */
--------------------------------- snip -------------------------------------
2. in lstream.h, removed duplicate declaration of Bytecount.
Rewrote the comment about this type. The changed code should
now look like this:
--------------------------------- snip -------------------------------------
#endif
/* The have been some arguments over the what the type should be that
specifies a count of bytes in a data block to be written out or read in,
using Lstream_read(), Lstream_write(), and related functions.
Originally it was long, which worked fine; Martin "corrected" these to
size_t and ssize_t on the grounds that this is theoretically cleaner and
is in keeping with the C standards. Unfortunately, this practice is
horribly error-prone due to design flaws in the way that mixed
signed/unsigned arithmetic happens. In fact, by doing this change,
Martin introduced a subtle but fatal error that caused the operation of
sending large mail messages to the SMTP server under Windows to fail.
By putting all values back to be signed, avoiding any signed/unsigned
mixing, the bug immediately went away. The type then in use was
Lstream_Data_Count, so that it be reverted cleanly if a vote came to
that. Now it is Bytecount.
Some earlier comments about why the type must be signed: This MUST BE
SIGNED, since it also is used in functions that return the number of
bytes actually read to or written from in an operation, and these
functions can return -1 to signal error.
Note that the standard Unix read() and write() functions define the
count going in as a size_t, which is UNSIGNED, and the count going
out as an ssize_t, which is SIGNED. This is a horrible design
flaw. Not only is it highly likely to lead to logic errors when a
-1 gets interpreted as a large positive number, but operations are
bound to fail in all sorts of horrible ways when a number in the
upper-half of the size_t range is passed in -- this number is
unrepresentable as an ssize_t, so code that checks to see how many
bytes are actually written (which is mandatory if you are dealing
with certain types of devices) will get completely screwed up.
--ben
*/
typedef enum lstream_buffering
--------------------------------- snip -------------------------------------
3. in dumper.c, there are four places, all inside of switch()
statements, where XD_BYTECOUNT appears twice as a case tag. In
each case, the two case blocks contain identical code, and you
should *REMOVE THE SECOND* and leave the first.
| author | ben |
|---|---|
| date | Thu, 20 Sep 2001 06:31:11 +0000 |
| parents | 13e3d7ae7155 |
| children | 943eaba38521 |
line wrap: on
line source
/* Tooltalk support for Emacs. Copyright (C) 1993, 1994 Sun Microsystems, Inc. Copyright (C) 1995 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: Not in FSF. */ /* Written by John Rose <john.rose@eng.sun.com>. Heavily modified and cleaned up by Ben Wing <ben@xemacs.org>. */ #include <config.h> #include "lisp.h" #include <X11/Xlib.h> #include "buffer.h" #include "elhash.h" #include "process.h" #include "tooltalk.h" #include "syssignal.h" Lisp_Object Vtooltalk_fd; #ifdef TT_DEBUG static FILE *tooltalk_log_file; #endif static Lisp_Object Vtooltalk_message_handler_hook, Vtooltalk_pattern_handler_hook, Vtooltalk_unprocessed_message_hook; static Lisp_Object Qtooltalk_message_handler_hook, Qtooltalk_pattern_handler_hook, Qtooltalk_unprocessed_message_hook; static Lisp_Object Qreceive_tooltalk_message, Qtt_address, Qtt_args_count, Qtt_arg_bval, Qtt_arg_ival, Qtt_arg_mode, Qtt_arg_type, Qtt_arg_val, Qtt_class, Qtt_category, Qtt_disposition, Qtt_file, Qtt_gid, Qtt_handler, Qtt_handler_ptype, Qtt_object, Qtt_op, Qtt_opnum, Qtt_otype, Qtt_scope, Qtt_sender, Qtt_sender_ptype, Qtt_session, Qtt_state, Qtt_status, Qtt_status_string, Qtt_uid, Qtt_callback, Qtt_plist, Qtt_prop, Qtt_reject, /* return-tooltalk-message */ Qtt_reply, Qtt_fail, Q_TT_MODE_UNDEFINED, /* enum Tt_mode */ Q_TT_IN, Q_TT_OUT, Q_TT_INOUT, Q_TT_MODE_LAST, Q_TT_SCOPE_NONE, /* enum Tt_scope */ Q_TT_SESSION, Q_TT_FILE, Q_TT_BOTH, Q_TT_FILE_IN_SESSION, Q_TT_CLASS_UNDEFINED, /* enum Tt_class */ Q_TT_NOTICE, Q_TT_REQUEST, Q_TT_CLASS_LAST, Q_TT_CATEGORY_UNDEFINED, /* enum Tt_category */ Q_TT_OBSERVE, Q_TT_HANDLE, Q_TT_CATEGORY_LAST, Q_TT_PROCEDURE, /* typedef enum Tt_address */ Q_TT_OBJECT, Q_TT_HANDLER, Q_TT_OTYPE, Q_TT_ADDRESS_LAST, Q_TT_CREATED, /* enum Tt_state */ Q_TT_SENT, Q_TT_HANDLED, Q_TT_FAILED, Q_TT_QUEUED, Q_TT_STARTED, Q_TT_REJECTED, Q_TT_STATE_LAST, Q_TT_DISCARD, /* enum Tt_disposition */ Q_TT_QUEUE, Q_TT_START; static Lisp_Object Tooltalk_Message_plist_str, Tooltalk_Pattern_plist_str; Lisp_Object Qtooltalk_error; /* Used to GCPRO tooltalk message and pattern objects while they're sitting inside of some active tooltalk message or pattern. There may not be any other pointers to these objects. */ Lisp_Object Vtooltalk_message_gcpro, Vtooltalk_pattern_gcpro; /* */ /* machinery for tooltalk-message type */ /* */ Lisp_Object Qtooltalk_messagep; struct Lisp_Tooltalk_Message { struct lcrecord_header header; Lisp_Object plist_sym, callback; Tt_message m; }; static Lisp_Object mark_tooltalk_message (Lisp_Object obj) { mark_object (XTOOLTALK_MESSAGE (obj)->callback); return XTOOLTALK_MESSAGE (obj)->plist_sym; } static void print_tooltalk_message (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag) { Lisp_Tooltalk_Message *p = XTOOLTALK_MESSAGE (obj); char buf[200]; if (print_readably) printing_unreadable_object ("#<tooltalk_message 0x%x>", p->header.uid); sprintf (buf, "#<tooltalk_message id:0x%lx 0x%x>", (long) (p->m), p->header.uid); write_c_string (buf, printcharfun); } DEFINE_LRECORD_IMPLEMENTATION ("tooltalk-message", tooltalk_message, mark_tooltalk_message, print_tooltalk_message, 0, 0, 0, 0, Lisp_Tooltalk_Message); static Lisp_Object make_tooltalk_message (Tt_message m) { Lisp_Object val; Lisp_Tooltalk_Message *msg = alloc_lcrecord_type (Lisp_Tooltalk_Message, &lrecord_tooltalk_message); msg->m = m; msg->callback = Qnil; msg->plist_sym = Fmake_symbol (Tooltalk_Message_plist_str); XSETTOOLTALK_MESSAGE (val, msg); return val; } Tt_message unbox_tooltalk_message (Lisp_Object msg) { CHECK_TOOLTALK_MESSAGE (msg); return XTOOLTALK_MESSAGE (msg)->m; } DEFUN ("tooltalk-message-p", Ftooltalk_message_p, 1, 1, 0, /* Return non-nil if OBJECT is a tooltalk message. */ (object)) { return TOOLTALK_MESSAGEP (object) ? Qt : Qnil; } /* */ /* machinery for tooltalk-pattern type */ /* */ Lisp_Object Qtooltalk_patternp; struct Lisp_Tooltalk_Pattern { struct lcrecord_header header; Lisp_Object plist_sym, callback; Tt_pattern p; }; static Lisp_Object mark_tooltalk_pattern (Lisp_Object obj) { mark_object (XTOOLTALK_PATTERN (obj)->callback); return XTOOLTALK_PATTERN (obj)->plist_sym; } static void print_tooltalk_pattern (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag) { Lisp_Tooltalk_Pattern *p = XTOOLTALK_PATTERN (obj); char buf[200]; if (print_readably) printing_unreadable_object ("#<tooltalk_pattern 0x%x>", p->header.uid); sprintf (buf, "#<tooltalk_pattern id:0x%lx 0x%x>", (long) (p->p), p->header.uid); write_c_string (buf, printcharfun); } DEFINE_LRECORD_IMPLEMENTATION ("tooltalk-pattern", tooltalk_pattern, mark_tooltalk_pattern, print_tooltalk_pattern, 0, 0, 0, 0, Lisp_Tooltalk_Pattern); static Lisp_Object make_tooltalk_pattern (Tt_pattern p) { Lisp_Tooltalk_Pattern *pat = alloc_lcrecord_type (Lisp_Tooltalk_Pattern, &lrecord_tooltalk_pattern); Lisp_Object val; pat->p = p; pat->callback = Qnil; pat->plist_sym = Fmake_symbol (Tooltalk_Pattern_plist_str); XSETTOOLTALK_PATTERN (val, pat); return val; } static Tt_pattern unbox_tooltalk_pattern (Lisp_Object pattern) { CHECK_TOOLTALK_PATTERN (pattern); return XTOOLTALK_PATTERN (pattern)->p; } DEFUN ("tooltalk-pattern-p", Ftooltalk_pattern_p, 1, 1, 0, /* Return non-nil if OBJECT is a tooltalk pattern. */ (object)) { return TOOLTALK_PATTERNP (object) ? Qt : Qnil; } static int tooltalk_constant_value (Lisp_Object s) { if (INTP (s)) return XINT (s); else if (SYMBOLP (s)) return XINT (XSYMBOL (s)->value); else return 0; /* should never occur */ } static void check_status (Tt_status st) { if (tt_is_err (st)) { CIntbyte *err; EXTERNAL_TO_C_STRING (tt_status_message (st), err, Qnative); signal_error (Qtooltalk_error, err, Qunbound); } } DEFUN ("receive-tooltalk-message", Freceive_tooltalk_message, 0, 2, 0, /* Run tt_message_receive(). This function is the process handler for the ToolTalk connection process. */ (ignore1, ignore2)) { /* This function can GC */ Tt_message mess = tt_message_receive (); Lisp_Object message_ = make_tooltalk_message (mess); struct gcpro gcpro1; GCPRO1 (message_); if (mess != NULL && !NILP (Vtooltalk_unprocessed_message_hook)) va_run_hook_with_args (Qtooltalk_unprocessed_message_hook, 1, message_); UNGCPRO; /* see comment in event-stream.c about this return value. */ return Qzero; } static Tt_callback_action tooltalk_message_callback (Tt_message m, Tt_pattern p) { /* This function can GC */ Lisp_Object cb; Lisp_Object message_; Lisp_Object pattern; struct gcpro gcpro1, gcpro2; #ifdef TT_DEBUG int i, j; fprintf (tooltalk_log_file, "message_cb: %d\n", m); fprintf (tooltalk_log_file, "op: %s (", tt_message_op (m)); for (j = tt_message_args_count (m), i = 0; i < j; i++) { fprintf (tooltalk_log_file, "%s \"%s\"", tt_message_arg_type (m, i), tt_message_arg_val (m, i)); fprintf (tooltalk_log_file, "%s", i == j-1 ? ")" : ", "); } fprintf (tooltalk_log_file, "\n\n"); fflush (tooltalk_log_file); #endif VOID_TO_LISP (message_, tt_message_user (m, TOOLTALK_MESSAGE_KEY)); pattern = make_tooltalk_pattern (p); cb = XTOOLTALK_MESSAGE (message_)->callback; GCPRO2 (message_, pattern); if (!NILP (Vtooltalk_message_handler_hook)) va_run_hook_with_args (Qtooltalk_message_handler_hook, 2, message_, pattern); if ((SYMBOLP (cb) && EQ (Qt, Ffboundp (cb))) || (CONSP (cb) && EQ (Qlambda, Fcar (cb)) && !NILP (Flistp (Fcar (Fcdr (cb)))))) call2 (cb, message_, pattern); UNGCPRO; tt_message_destroy (m); Fremhash (message_, Vtooltalk_message_gcpro); return TT_CALLBACK_PROCESSED; } static Tt_callback_action tooltalk_pattern_callback (Tt_message m, Tt_pattern p) { /* This function can GC */ Lisp_Object cb; Lisp_Object message_; Lisp_Object pattern; struct gcpro gcpro1, gcpro2; #ifdef TT_DEBUG int i, j; fprintf (tooltalk_log_file, "pattern_cb: %d\n", m); fprintf (tooltalk_log_file, "op: %s (", tt_message_op (m)); for (j = tt_message_args_count (m), i = 0; i < j; i++) { fprintf (tooltalk_log_file, "%s \"%s\"", tt_message_arg_type (m, i), tt_message_arg_val (m, i)); fprintf (tooltalk_log_file, "%s", i == j-1 ? ")" : ", "); } fprintf (tooltalk_log_file, "\n\n"); fflush (tooltalk_log_file); #endif message_ = make_tooltalk_message (m); VOID_TO_LISP (pattern, tt_pattern_user (p, TOOLTALK_PATTERN_KEY)); cb = XTOOLTALK_PATTERN (pattern)->callback; GCPRO2 (message_, pattern); if (!NILP (Vtooltalk_pattern_handler_hook)) va_run_hook_with_args (Qtooltalk_pattern_handler_hook, 2, message_, pattern); if (SYMBOLP (cb) && EQ (Qt, Ffboundp (cb))) call2 (cb, message_, pattern); UNGCPRO; tt_message_destroy (m); return TT_CALLBACK_PROCESSED; } static Lisp_Object tt_mode_symbol (Tt_mode n) { switch (n) { case TT_MODE_UNDEFINED: return Q_TT_MODE_UNDEFINED; case TT_IN: return Q_TT_IN; case TT_OUT: return Q_TT_OUT; case TT_INOUT: return Q_TT_INOUT; case TT_MODE_LAST: return Q_TT_MODE_LAST; default: return Qnil; } } static Lisp_Object tt_scope_symbol (Tt_scope n) { switch (n) { case TT_SCOPE_NONE: return Q_TT_SCOPE_NONE; case TT_SESSION: return Q_TT_SESSION; case TT_FILE: return Q_TT_FILE; case TT_BOTH: return Q_TT_BOTH; case TT_FILE_IN_SESSION: return Q_TT_FILE_IN_SESSION; default: return Qnil; } } static Lisp_Object tt_class_symbol (Tt_class n) { switch (n) { case TT_CLASS_UNDEFINED: return Q_TT_CLASS_UNDEFINED; case TT_NOTICE: return Q_TT_NOTICE; case TT_REQUEST: return Q_TT_REQUEST; case TT_CLASS_LAST: return Q_TT_CLASS_LAST; default: return Qnil; } } /* * This is not being used. Is that a mistake or is this function * simply not necessary? */ #if 0 static Lisp_Object tt_category_symbol (Tt_category n) { switch (n) { case TT_CATEGORY_UNDEFINED: return Q_TT_CATEGORY_UNDEFINED; case TT_OBSERVE: return Q_TT_OBSERVE; case TT_HANDLE: return Q_TT_HANDLE; case TT_CATEGORY_LAST: return Q_TT_CATEGORY_LAST; default: return Qnil; } } #endif /* 0 */ static Lisp_Object tt_address_symbol (Tt_address n) { switch (n) { case TT_PROCEDURE: return Q_TT_PROCEDURE; case TT_OBJECT: return Q_TT_OBJECT; case TT_HANDLER: return Q_TT_HANDLER; case TT_OTYPE: return Q_TT_OTYPE; case TT_ADDRESS_LAST: return Q_TT_ADDRESS_LAST; default: return Qnil; } } static Lisp_Object tt_state_symbol (Tt_state n) { switch (n) { case TT_CREATED: return Q_TT_CREATED; case TT_SENT: return Q_TT_SENT; case TT_HANDLED: return Q_TT_HANDLED; case TT_FAILED: return Q_TT_FAILED; case TT_QUEUED: return Q_TT_QUEUED; case TT_STARTED: return Q_TT_STARTED; case TT_REJECTED: return Q_TT_REJECTED; case TT_STATE_LAST: return Q_TT_STATE_LAST; default: return Qnil; } } static Lisp_Object tt_build_string (char *s) { return build_string (s ? s : ""); } static Lisp_Object tt_opnum_string (int n) { char buf[32]; sprintf (buf, "%u", n); return build_string (buf); } static Lisp_Object tt_message_arg_ival_string (Tt_message m, int n) { char buf[DECIMAL_PRINT_SIZE (long)]; int value; check_status (tt_message_arg_ival (m, n, &value)); long_to_string (buf, value); return build_string (buf); } static Lisp_Object tt_message_arg_bval_vector (Tt_message m, int n) { /* !!#### This function has not been Mule-ized */ Intbyte *value; int len = 0; check_status (tt_message_arg_bval (m, n, &value, &len)); return make_string (value, len); } DEFUN ("get-tooltalk-message-attribute", Fget_tooltalk_message_attribute, 2, 3, 0, /* Return the indicated Tooltalk message attribute. Attributes are identified by symbols with the same name (underscores and all) as the suffix of the Tooltalk tt_message_<attribute> function that extracts the value. String attribute values are copied, enumerated type values (except disposition) are converted to symbols - e.g. TT_HANDLER is 'TT_HANDLER, uid and gid are represented by fixnums (small integers), opnum is converted to a string, and disposition is converted to a fixnum. We convert opnum (a C int) to a string, e.g. 123 => "123" because there's no guarantee that opnums will fit within the range of Lisp integers. Use the 'plist attribute instead of the C API 'user attribute for user defined message data. To retrieve the value of a message property specify the indicator for argn. For example to get the value of a property called 'rflag, use (get-tooltalk-message-attribute message 'plist 'rflag) To get the value of a message argument use one of the 'arg_val (strings), 'arg_ival (integers), or 'arg_bval (strings with embedded nulls), attributes. For example to get the integer value of the third argument: (get-tooltalk-message-attribute message 'arg_ival 2) As you can see, argument numbers are zero based. The type of each argument can be retrieved with the 'arg_type attribute; however, Tooltalk doesn't define any semantics for the string value of 'arg_type. Conventionally "string" is used for strings and "int" for 32 bit integers. Note that Emacs Lisp stores the lengths of strings explicitly (unlike C) so treating the value returned by 'arg_bval like a string is fine. */ (message_, attribute, argn)) { Tt_message m = unbox_tooltalk_message (message_); int n = 0; CHECK_SYMBOL (attribute); if (EQ (attribute, (Qtt_arg_bval)) || EQ (attribute, (Qtt_arg_ival)) || EQ (attribute, (Qtt_arg_mode)) || EQ (attribute, (Qtt_arg_type)) || EQ (attribute, (Qtt_arg_val))) { CHECK_INT (argn); n = XINT (argn); } if (!VALID_TOOLTALK_MESSAGEP (m)) return Qnil; else if (EQ (attribute, Qtt_arg_bval)) return tt_message_arg_bval_vector (m, n); else if (EQ (attribute, Qtt_arg_ival)) return tt_message_arg_ival_string (m, n); else if (EQ (attribute, Qtt_arg_mode)) return tt_mode_symbol (tt_message_arg_mode (m, n)); else if (EQ (attribute, Qtt_arg_type)) return tt_build_string (tt_message_arg_type (m, n)); else if (EQ (attribute, Qtt_arg_val)) return tt_message_arg_bval_vector (m, n); else if (EQ (attribute, Qtt_args_count)) return make_int (tt_message_args_count (m)); else if (EQ (attribute, Qtt_address)) return tt_address_symbol (tt_message_address (m)); else if (EQ (attribute, Qtt_class)) return tt_class_symbol (tt_message_class (m)); else if (EQ (attribute, Qtt_disposition)) return make_int (tt_message_disposition (m)); else if (EQ (attribute, Qtt_file)) return tt_build_string (tt_message_file (m)); else if (EQ (attribute, Qtt_gid)) return make_int (tt_message_gid (m)); else if (EQ (attribute, Qtt_handler)) return tt_build_string (tt_message_handler (m)); else if (EQ (attribute, Qtt_handler_ptype)) return tt_build_string (tt_message_handler_ptype (m)); else if (EQ (attribute, Qtt_object)) return tt_build_string (tt_message_object (m)); else if (EQ (attribute, Qtt_op)) return tt_build_string (tt_message_op (m)); else if (EQ (attribute, Qtt_opnum)) return tt_opnum_string (tt_message_opnum (m)); else if (EQ (attribute, Qtt_otype)) return tt_build_string (tt_message_otype (m)); else if (EQ (attribute, Qtt_scope)) return tt_scope_symbol (tt_message_scope (m)); else if (EQ (attribute, Qtt_sender)) return tt_build_string (tt_message_sender (m)); else if (EQ (attribute, Qtt_sender_ptype)) return tt_build_string (tt_message_sender_ptype (m)); else if (EQ (attribute, Qtt_session)) return tt_build_string (tt_message_session (m)); else if (EQ (attribute, Qtt_state)) return tt_state_symbol (tt_message_state (m)); else if (EQ (attribute, Qtt_status)) return make_int (tt_message_status (m)); else if (EQ (attribute, Qtt_status_string)) return tt_build_string (tt_message_status_string (m)); else if (EQ (attribute, Qtt_uid)) return make_int (tt_message_uid (m)); else if (EQ (attribute, Qtt_callback)) return XTOOLTALK_MESSAGE (message_)->callback; else if (EQ (attribute, Qtt_prop)) return Fget (XTOOLTALK_MESSAGE (message_)->plist_sym, argn, Qnil); else if (EQ (attribute, Qtt_plist)) return Fcopy_sequence (Fsymbol_plist (XTOOLTALK_MESSAGE (message_)->plist_sym)); else invalid_constant ("Invalid value for `get-tooltalk-message-attribute'", attribute); return Qnil; } DEFUN ("set-tooltalk-message-attribute", Fset_tooltalk_message_attribute, 3, 4, 0, /* Initialize one Tooltalk message attribute. Attribute names and values are the same as for `get-tooltalk-message-attribute'. A property list is provided for user data (instead of the 'user message attribute); see `get-tooltalk-message-attribute'. The value of callback should be the name of a function of one argument. It will be applied to the message and matching pattern each time the state of the message changes. This is usually used to notice when the messages state has changed to TT_HANDLED (or TT_FAILED), so that reply argument values can be used. If one of the argument attributes is specified, 'arg_val, 'arg_ival, or 'arg_bval then argn must be the number of an already created argument. New arguments can be added to a message with add-tooltalk-message-arg. */ (value, message_, attribute, argn)) { Tt_message m = unbox_tooltalk_message (message_); int n = 0; Tt_status (*fun_str) (Tt_message, const char *) = 0; CHECK_SYMBOL (attribute); if (EQ (attribute, (Qtt_arg_bval)) || EQ (attribute, (Qtt_arg_ival)) || EQ (attribute, (Qtt_arg_val))) { CHECK_INT (argn); n = XINT (argn); } if (!VALID_TOOLTALK_MESSAGEP (m)) return Qnil; if (EQ (attribute, Qtt_address)) { CHECK_TOOLTALK_CONSTANT (value); tt_message_address_set (m, (Tt_address) tooltalk_constant_value (value)); } else if (EQ (attribute, Qtt_class)) { CHECK_TOOLTALK_CONSTANT (value); tt_message_class_set (m, (Tt_class) tooltalk_constant_value (value)); } else if (EQ (attribute, Qtt_disposition)) { CHECK_TOOLTALK_CONSTANT (value); tt_message_disposition_set (m, ((Tt_disposition) tooltalk_constant_value (value))); } else if (EQ (attribute, Qtt_scope)) { CHECK_TOOLTALK_CONSTANT (value); tt_message_scope_set (m, (Tt_scope) tooltalk_constant_value (value)); } else if (EQ (attribute, Qtt_file)) fun_str = tt_message_file_set; else if (EQ (attribute, Qtt_handler_ptype)) fun_str = tt_message_handler_ptype_set; else if (EQ (attribute, Qtt_handler)) fun_str = tt_message_handler_set; else if (EQ (attribute, Qtt_object)) fun_str = tt_message_object_set; else if (EQ (attribute, Qtt_op)) fun_str = tt_message_op_set; else if (EQ (attribute, Qtt_otype)) fun_str = tt_message_otype_set; else if (EQ (attribute, Qtt_sender_ptype)) fun_str = tt_message_sender_ptype_set; else if (EQ (attribute, Qtt_session)) fun_str = tt_message_session_set; else if (EQ (attribute, Qtt_status_string)) fun_str = tt_message_status_string_set; else if (EQ (attribute, Qtt_arg_bval)) { Extbyte *value_ext; Bytecount value_ext_len; CHECK_STRING (value); TO_EXTERNAL_FORMAT (LISP_STRING, value, ALLOCA, (value_ext, value_ext_len), Qnative); tt_message_arg_bval_set (m, n, (unsigned char *) value_ext, value_ext_len); } else if (EQ (attribute, Qtt_arg_ival)) { CHECK_INT (value); tt_message_arg_ival_set (m, n, XINT (value)); } else if (EQ (attribute, Qtt_arg_val)) { const char *value_ext; CHECK_STRING (value); LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_message_arg_val_set (m, n, value_ext); } else if (EQ (attribute, Qtt_status)) { CHECK_INT (value); tt_message_status_set (m, XINT (value)); } else if (EQ (attribute, Qtt_callback)) { CHECK_SYMBOL (value); XTOOLTALK_MESSAGE (message_)->callback = value; } else if (EQ (attribute, Qtt_prop)) { return Fput (XTOOLTALK_MESSAGE (message_)->plist_sym, argn, value); } else invalid_constant ("Invalid value for `set-tooltalk-message-attribute'", attribute); if (fun_str) { const char *value_ext; CHECK_STRING (value); LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); (*fun_str) (m, value_ext); } return Qnil; } DEFUN ("return-tooltalk-message", Freturn_tooltalk_message, 1, 2, 0, /* Send a reply to this message. The second argument can be 'reply, 'reject or 'fail; the default is 'reply. Before sending a reply all message arguments whose mode is TT_INOUT or TT_OUT should have been filled in - see set-tooltalk-message-attribute. */ (message_, mode)) { Tt_message m = unbox_tooltalk_message (message_); if (NILP (mode)) mode = Qtt_reply; else CHECK_SYMBOL (mode); if (!VALID_TOOLTALK_MESSAGEP (m)) return Qnil; else if (EQ (mode, Qtt_reply)) tt_message_reply (m); else if (EQ (mode, Qtt_reject)) tt_message_reject (m); else if (EQ (mode, Qtt_fail)) tt_message_fail (m); return Qnil; } DEFUN ("create-tooltalk-message", Fcreate_tooltalk_message, 0, 1, 0, /* Create a new tooltalk message. The messages session attribute is initialized to the default session. Other attributes can be initialized with `set-tooltalk-message-attribute'. `make-tooltalk-message' is the preferred to create and initialize a message. Optional arg NO-CALLBACK says don't add a C-level callback at all. Normally don't do that; just don't specify the Lisp callback when calling `make-tooltalk-message'. */ (no_callback)) { Tt_message m = tt_message_create (); Lisp_Object message_ = make_tooltalk_message (m); if (NILP (no_callback)) { tt_message_callback_add (m, tooltalk_message_callback); } tt_message_session_set (m, tt_default_session ()); tt_message_user_set (m, TOOLTALK_MESSAGE_KEY, LISP_TO_VOID (message_)); return message_; } DEFUN ("destroy-tooltalk-message", Fdestroy_tooltalk_message, 1, 1, 0, /* Apply tt_message_destroy() to the message. It's not necessary to destroy messages after they've been processed by a message or pattern callback; the Lisp/Tooltalk callback machinery does this for you. */ (message_)) { Tt_message m = unbox_tooltalk_message (message_); if (VALID_TOOLTALK_MESSAGEP (m)) /* #### Should we call Fremhash() here? It seems that a common paradigm is (send-tooltalk-message) (destroy-tooltalk-message) which would imply that destroying a sent ToolTalk message doesn't actually destroy it; when a response is sent back, the callback for the message will still be called. But then maybe not: Maybe it really does destroy it, and the reason for that paradigm is that the author of `send-tooltalk-message' didn't really know what he was talking about when he said that it's a good idea to call `destroy-tooltalk-message' after sending it. */ tt_message_destroy (m); return Qnil; } DEFUN ("add-tooltalk-message-arg", Fadd_tooltalk_message_arg, 3, 4, 0, /* Append one new argument to the message. MODE must be one of TT_IN, TT_INOUT, or TT_OUT; VTYPE must be a string; and VALUE can be a string or an integer. Tooltalk doesn't define any semantics for VTYPE, so only the participants in the protocol you're using need to agree what types mean (if anything). Conventionally "string" is used for strings and "int" for 32 bit integers. Arguments can initialized by providing a value or with `set-tooltalk-message-attribute'. The latter is necessary if you want to initialize the argument with a string that can contain embedded nulls (use 'arg_bval). */ (message_, mode, vtype, value)) { Tt_message m = unbox_tooltalk_message (message_); Tt_mode n; CHECK_STRING (vtype); CHECK_TOOLTALK_CONSTANT (mode); n = (Tt_mode) tooltalk_constant_value (mode); if (!VALID_TOOLTALK_MESSAGEP (m)) return Qnil; { const char *vtype_ext; LISP_STRING_TO_EXTERNAL (vtype, vtype_ext, Qnative); if (NILP (value)) tt_message_arg_add (m, n, vtype_ext, NULL); else if (STRINGP (value)) { const char *value_ext; LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_message_arg_add (m, n, vtype_ext, value_ext); } else if (INTP (value)) tt_message_iarg_add (m, n, vtype_ext, XINT (value)); } return Qnil; } DEFUN ("send-tooltalk-message", Fsend_tooltalk_message, 1, 1, 0, /* Send the message on its way. Once the message has been sent it's almost always a good idea to get rid of it with `destroy-tooltalk-message'. */ (message_)) { Tt_message m = unbox_tooltalk_message (message_); if (VALID_TOOLTALK_MESSAGEP (m)) { tt_message_send (m); Fputhash (message_, Qnil, Vtooltalk_message_gcpro); } return Qnil; } DEFUN ("create-tooltalk-pattern", Fcreate_tooltalk_pattern, 0, 0, 0, /* Create a new Tooltalk pattern. Its session attribute is initialized to be the default session. */ ()) { Tt_pattern p = tt_pattern_create (); Lisp_Object pattern = make_tooltalk_pattern (p); tt_pattern_callback_add (p, tooltalk_pattern_callback); tt_pattern_session_add (p, tt_default_session ()); tt_pattern_user_set (p, TOOLTALK_PATTERN_KEY, LISP_TO_VOID (pattern)); return pattern; } DEFUN ("destroy-tooltalk-pattern", Fdestroy_tooltalk_pattern, 1, 1, 0, /* Apply tt_pattern_destroy() to the pattern. This effectively unregisters the pattern. */ (pattern)) { Tt_pattern p = unbox_tooltalk_pattern (pattern); if (VALID_TOOLTALK_PATTERNP (p)) { tt_pattern_destroy (p); Fremhash (pattern, Vtooltalk_pattern_gcpro); } return Qnil; } DEFUN ("add-tooltalk-pattern-attribute", Fadd_tooltalk_pattern_attribute, 3, 3, 0, /* Add one value to the indicated pattern attribute. All Tooltalk pattern attributes are supported except 'user. The names of attributes are the same as the Tooltalk accessors used to set them less the "tooltalk_pattern_" prefix and the "_add" ... */ (value, pattern, attribute)) { Tt_pattern p = unbox_tooltalk_pattern (pattern); CHECK_SYMBOL (attribute); if (!VALID_TOOLTALK_PATTERNP (p)) return Qnil; else if (EQ (attribute, Qtt_category)) { CHECK_TOOLTALK_CONSTANT (value); tt_pattern_category_set (p, ((Tt_category) tooltalk_constant_value (value))); } else if (EQ (attribute, Qtt_address)) { CHECK_TOOLTALK_CONSTANT (value); tt_pattern_address_add (p, ((Tt_address) tooltalk_constant_value (value))); } else if (EQ (attribute, Qtt_class)) { CHECK_TOOLTALK_CONSTANT (value); tt_pattern_class_add (p, (Tt_class) tooltalk_constant_value (value)); } else if (EQ (attribute, Qtt_disposition)) { CHECK_TOOLTALK_CONSTANT (value); tt_pattern_disposition_add (p, ((Tt_disposition) tooltalk_constant_value (value))); } else if (EQ (attribute, Qtt_file)) { const char *value_ext; CHECK_STRING (value); LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_pattern_file_add (p, value_ext); } else if (EQ (attribute, Qtt_object)) { const char *value_ext; CHECK_STRING (value); LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_pattern_object_add (p, value_ext); } else if (EQ (attribute, Qtt_op)) { const char *value_ext; CHECK_STRING (value); LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_pattern_op_add (p, value_ext); } else if (EQ (attribute, Qtt_otype)) { const char *value_ext; CHECK_STRING (value); LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_pattern_otype_add (p, value_ext); } else if (EQ (attribute, Qtt_scope)) { CHECK_TOOLTALK_CONSTANT (value); tt_pattern_scope_add (p, (Tt_scope) tooltalk_constant_value (value)); } else if (EQ (attribute, Qtt_sender)) { const char *value_ext; CHECK_STRING (value); LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_pattern_sender_add (p, value_ext); } else if (EQ (attribute, Qtt_sender_ptype)) { const char *value_ext; CHECK_STRING (value); LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_pattern_sender_ptype_add (p, value_ext); } else if (EQ (attribute, Qtt_session)) { const char *value_ext; CHECK_STRING (value); LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_pattern_session_add (p, value_ext); } else if (EQ (attribute, Qtt_state)) { CHECK_TOOLTALK_CONSTANT (value); tt_pattern_state_add (p, (Tt_state) tooltalk_constant_value (value)); } else if (EQ (attribute, Qtt_callback)) { CHECK_SYMBOL (value); XTOOLTALK_PATTERN (pattern)->callback = value; } return Qnil; } DEFUN ("add-tooltalk-pattern-arg", Fadd_tooltalk_pattern_arg, 3, 4, 0, /* Add one fully specified argument to a tooltalk pattern. Mode must be one of TT_IN, TT_INOUT, or TT_OUT, type must be a string. Value can be an integer, string or nil. If value is an integer then an integer argument (tt_pattern_iarg_add) added otherwise a string argument is added. At present there's no way to add a binary data argument. */ (pattern, mode, vtype, value)) { Tt_pattern p = unbox_tooltalk_pattern (pattern); Tt_mode n; CHECK_STRING (vtype); CHECK_TOOLTALK_CONSTANT (mode); n = (Tt_mode) tooltalk_constant_value (mode); if (!VALID_TOOLTALK_PATTERNP (p)) return Qnil; { const char *vtype_ext; LISP_STRING_TO_EXTERNAL (vtype, vtype_ext, Qnative); if (NILP (value)) tt_pattern_arg_add (p, n, vtype_ext, NULL); else if (STRINGP (value)) { const char *value_ext; LISP_STRING_TO_EXTERNAL (value, value_ext, Qnative); tt_pattern_arg_add (p, n, vtype_ext, value_ext); } else if (INTP (value)) tt_pattern_iarg_add (p, n, vtype_ext, XINT (value)); } return Qnil; } DEFUN ("register-tooltalk-pattern", Fregister_tooltalk_pattern, 1, 1, 0, /* Emacs will begin receiving messages that match this pattern. */ (pattern)) { Tt_pattern p = unbox_tooltalk_pattern (pattern); if (VALID_TOOLTALK_PATTERNP (p) && tt_pattern_register (p) == TT_OK) { Fputhash (pattern, Qnil, Vtooltalk_pattern_gcpro); return Qt; } else return Qnil; } DEFUN ("unregister-tooltalk-pattern", Funregister_tooltalk_pattern, 1, 1, 0, /* Emacs will stop receiving messages that match this pattern. */ (pattern)) { Tt_pattern p = unbox_tooltalk_pattern (pattern); if (VALID_TOOLTALK_PATTERNP (p)) { tt_pattern_unregister (p); Fremhash (pattern, Vtooltalk_pattern_gcpro); } return Qnil; } DEFUN ("tooltalk-pattern-prop-get", Ftooltalk_pattern_prop_get, 2, 2, 0, /* Return the value of PROPERTY in tooltalk pattern PATTERN. This is the last value set with `tooltalk-pattern-prop-set'. */ (pattern, property)) { CHECK_TOOLTALK_PATTERN (pattern); return Fget (XTOOLTALK_PATTERN (pattern)->plist_sym, property, Qnil); } DEFUN ("tooltalk-pattern-prop-set", Ftooltalk_pattern_prop_set, 3, 3, 0, /* Set the value of PROPERTY to VALUE in tooltalk pattern PATTERN. It can be retrieved with `tooltalk-pattern-prop-get'. */ (pattern, property, value)) { CHECK_TOOLTALK_PATTERN (pattern); return Fput (XTOOLTALK_PATTERN (pattern)->plist_sym, property, value); } DEFUN ("tooltalk-pattern-plist-get", Ftooltalk_pattern_plist_get, 1, 1, 0, /* Return the a list of all the properties currently set in PATTERN. */ (pattern)) { CHECK_TOOLTALK_PATTERN (pattern); return Fcopy_sequence (Fsymbol_plist (XTOOLTALK_PATTERN (pattern)->plist_sym)); } DEFUN ("tooltalk-default-procid", Ftooltalk_default_procid, 0, 0, 0, /* Return current default process identifier for your process. */ ()) { char *procid = tt_default_procid (); return procid ? build_string (procid) : Qnil; } DEFUN ("tooltalk-default-session", Ftooltalk_default_session, 0, 0, 0, /* Return current default session identifier for the current default procid. */ ()) { char *session = tt_default_session (); return session ? build_string (session) : Qnil; } static void init_tooltalk (void) { /* This function can GC */ char *retval; Lisp_Object lp; Lisp_Object fil; /* tt_open() messes with our signal handler flags (at least when no ttsessions is running on the machine), therefore we save the actions and restore them after the call */ #ifdef HAVE_SIGPROCMASK { struct sigaction ActSIGQUIT; struct sigaction ActSIGINT; struct sigaction ActSIGCHLD; sigaction (SIGQUIT, NULL, &ActSIGQUIT); sigaction (SIGINT, NULL, &ActSIGINT); sigaction (SIGCHLD, NULL, &ActSIGCHLD); #endif retval = tt_open (); #ifdef HAVE_SIGPROCMASK sigaction (SIGQUIT, &ActSIGQUIT, NULL); sigaction (SIGINT, &ActSIGINT, NULL); sigaction (SIGCHLD, &ActSIGCHLD, NULL); } #endif if (tt_ptr_error (retval) != TT_OK) return; Vtooltalk_fd = make_int (tt_fd ()); tt_session_join (tt_default_session ()); lp = connect_to_file_descriptor (build_string ("tooltalk"), Qnil, Vtooltalk_fd, Vtooltalk_fd); if (!NILP (lp)) { /* Don't ask the user for confirmation when exiting Emacs */ Fprocess_kill_without_query (lp, Qnil); XSETSUBR (fil, &SFreceive_tooltalk_message); set_process_filter (lp, fil, 1); } else { tt_close (); Vtooltalk_fd = Qnil; return; } #if defined (SOLARIS2) /* Apparently the tt_message_send_on_exit() function does not exist under SunOS 4.x or IRIX 5 or various other non-Solaris-2 systems. No big deal if we don't do the following under those systems. */ { Tt_message exit_msg = tt_message_create (); tt_message_op_set (exit_msg, "emacs-aborted"); tt_message_scope_set (exit_msg, TT_SESSION); tt_message_class_set (exit_msg, TT_NOTICE); tt_message_send_on_exit (exit_msg); tt_message_destroy (exit_msg); } #endif } DEFUN ("tooltalk-open-connection", Ftooltalk_open_connection, 0, 0, 0, /* Opens a connection to the ToolTalk server. Returns t if successful, nil otherwise. */ ()) { if (!NILP (Vtooltalk_fd)) signal_error (Qio_error, "Already connected to ToolTalk", Qunbound); if (noninteractive) signal_error (Qio_error, "Can't connect to ToolTalk in batch mode", Qunbound); init_tooltalk (); return NILP (Vtooltalk_fd) ? Qnil : Qt; } void syms_of_tooltalk (void) { INIT_LRECORD_IMPLEMENTATION (tooltalk_message); INIT_LRECORD_IMPLEMENTATION (tooltalk_pattern); DEFSYMBOL_MULTIWORD_PREDICATE (Qtooltalk_messagep); DEFSUBR (Ftooltalk_message_p); DEFSYMBOL_MULTIWORD_PREDICATE (Qtooltalk_patternp); DEFSUBR (Ftooltalk_pattern_p); DEFSYMBOL (Qtooltalk_message_handler_hook); DEFSYMBOL (Qtooltalk_pattern_handler_hook); DEFSYMBOL (Qtooltalk_unprocessed_message_hook); DEFSUBR (Freceive_tooltalk_message); DEFSUBR (Fcreate_tooltalk_message); DEFSUBR (Fdestroy_tooltalk_message); DEFSUBR (Fadd_tooltalk_message_arg); DEFSUBR (Fget_tooltalk_message_attribute); DEFSUBR (Fset_tooltalk_message_attribute); DEFSUBR (Fsend_tooltalk_message); DEFSUBR (Freturn_tooltalk_message); DEFSUBR (Fcreate_tooltalk_pattern); DEFSUBR (Fdestroy_tooltalk_pattern); DEFSUBR (Fadd_tooltalk_pattern_attribute); DEFSUBR (Fadd_tooltalk_pattern_arg); DEFSUBR (Fregister_tooltalk_pattern); DEFSUBR (Funregister_tooltalk_pattern); DEFSUBR (Ftooltalk_pattern_plist_get); DEFSUBR (Ftooltalk_pattern_prop_set); DEFSUBR (Ftooltalk_pattern_prop_get); DEFSUBR (Ftooltalk_default_procid); DEFSUBR (Ftooltalk_default_session); DEFSUBR (Ftooltalk_open_connection); DEFSYMBOL (Qreceive_tooltalk_message); defsymbol (&Qtt_address, "address"); defsymbol (&Qtt_args_count, "args_count"); defsymbol (&Qtt_arg_bval, "arg_bval"); defsymbol (&Qtt_arg_ival, "arg_ival"); defsymbol (&Qtt_arg_mode, "arg_mode"); defsymbol (&Qtt_arg_type, "arg_type"); defsymbol (&Qtt_arg_val, "arg_val"); defsymbol (&Qtt_class, "class"); defsymbol (&Qtt_category, "category"); defsymbol (&Qtt_disposition, "disposition"); defsymbol (&Qtt_file, "file"); defsymbol (&Qtt_gid, "gid"); defsymbol (&Qtt_handler, "handler"); defsymbol (&Qtt_handler_ptype, "handler_ptype"); defsymbol (&Qtt_object, "object"); defsymbol (&Qtt_op, "op"); defsymbol (&Qtt_opnum, "opnum"); defsymbol (&Qtt_otype, "otype"); defsymbol (&Qtt_scope, "scope"); defsymbol (&Qtt_sender, "sender"); defsymbol (&Qtt_sender_ptype, "sender_ptype"); defsymbol (&Qtt_session, "session"); defsymbol (&Qtt_state, "state"); defsymbol (&Qtt_status, "status"); defsymbol (&Qtt_status_string, "status_string"); defsymbol (&Qtt_uid, "uid"); defsymbol (&Qtt_callback, "callback"); defsymbol (&Qtt_prop, "prop"); defsymbol (&Qtt_plist, "plist"); defsymbol (&Qtt_reject, "reject"); defsymbol (&Qtt_reply, "reply"); defsymbol (&Qtt_fail, "fail"); DEFERROR (Qtooltalk_error, "ToolTalk error", Qio_error); } void vars_of_tooltalk (void) { Fprovide (intern ("tooltalk")); DEFVAR_LISP ("tooltalk-fd", &Vtooltalk_fd /* File descriptor returned by tt_initialize; nil if not connected to ToolTalk. */ ); Vtooltalk_fd = Qnil; DEFVAR_LISP ("tooltalk-message-handler-hook", &Vtooltalk_message_handler_hook /* List of functions to be applied to each ToolTalk message reply received. This will always occur as a result of our sending a request message. Functions will be called with two arguments, the message and the corresponding pattern. This hook will not be called if the request message was created without a C-level callback function (see `tooltalk-unprocessed-message-hook'). */ ); Vtooltalk_message_handler_hook = Qnil; DEFVAR_LISP ("tooltalk-pattern-handler-hook", &Vtooltalk_pattern_handler_hook /* List of functions to be applied to each pattern-matching ToolTalk message. This is all messages except those handled by `tooltalk-message-handler-hook'. Functions will be called with two arguments, the message and the corresponding pattern. */ ); Vtooltalk_pattern_handler_hook = Qnil; DEFVAR_LISP ("tooltalk-unprocessed-message-hook", &Vtooltalk_unprocessed_message_hook /* List of functions to be applied to each unprocessed ToolTalk message. Unprocessed messages are messages that didn't match any patterns. */ ); Vtooltalk_unprocessed_message_hook = Qnil; Tooltalk_Message_plist_str = build_string ("Tooltalk Message plist"); Tooltalk_Pattern_plist_str = build_string ("Tooltalk Pattern p plist"); staticpro(&Tooltalk_Message_plist_str); staticpro(&Tooltalk_Pattern_plist_str); #define MAKE_CONSTANT(name) do { \ defsymbol (&Q_ ## name, #name); \ Fset (Q_ ## name, make_int (name)); \ } while (0) MAKE_CONSTANT (TT_MODE_UNDEFINED); MAKE_CONSTANT (TT_IN); MAKE_CONSTANT (TT_OUT); MAKE_CONSTANT (TT_INOUT); MAKE_CONSTANT (TT_MODE_LAST); MAKE_CONSTANT (TT_SCOPE_NONE); MAKE_CONSTANT (TT_SESSION); MAKE_CONSTANT (TT_FILE); MAKE_CONSTANT (TT_BOTH); MAKE_CONSTANT (TT_FILE_IN_SESSION); MAKE_CONSTANT (TT_CLASS_UNDEFINED); MAKE_CONSTANT (TT_NOTICE); MAKE_CONSTANT (TT_REQUEST); MAKE_CONSTANT (TT_CLASS_LAST); MAKE_CONSTANT (TT_CATEGORY_UNDEFINED); MAKE_CONSTANT (TT_OBSERVE); MAKE_CONSTANT (TT_HANDLE); MAKE_CONSTANT (TT_CATEGORY_LAST); MAKE_CONSTANT (TT_PROCEDURE); MAKE_CONSTANT (TT_OBJECT); MAKE_CONSTANT (TT_HANDLER); MAKE_CONSTANT (TT_OTYPE); MAKE_CONSTANT (TT_ADDRESS_LAST); MAKE_CONSTANT (TT_CREATED); MAKE_CONSTANT (TT_SENT); MAKE_CONSTANT (TT_HANDLED); MAKE_CONSTANT (TT_FAILED); MAKE_CONSTANT (TT_QUEUED); MAKE_CONSTANT (TT_STARTED); MAKE_CONSTANT (TT_REJECTED); MAKE_CONSTANT (TT_STATE_LAST); MAKE_CONSTANT (TT_DISCARD); MAKE_CONSTANT (TT_QUEUE); MAKE_CONSTANT (TT_START); #undef MAKE_CONSTANT staticpro (&Vtooltalk_message_gcpro); staticpro (&Vtooltalk_pattern_gcpro); Vtooltalk_message_gcpro = make_lisp_hash_table (10, HASH_TABLE_NON_WEAK, HASH_TABLE_EQ); Vtooltalk_pattern_gcpro = make_lisp_hash_table (10, HASH_TABLE_NON_WEAK, HASH_TABLE_EQ); }