Mercurial > hg > xemacs-beta
annotate src/win32.c @ 5353:38e24b8be4ea
Improve the lexical scoping in #'block, #'return-from.
lisp/ChangeLog addition:
2011-02-07 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el:
* bytecomp.el (byte-compile-initial-macro-environment):
Shadow `block', `return-from' here, we implement them differently
when byte-compiling.
* bytecomp.el (byte-compile-active-blocks): New.
* bytecomp.el (byte-compile-block-1): New.
* bytecomp.el (byte-compile-return-from-1): New.
* bytecomp.el (return-from-1): New.
* bytecomp.el (block-1): New.
These are two aliases that exist to have their own associated
byte-compile functions, which functions implement `block' and
`return-from'.
* cl-extra.el (cl-macroexpand-all):
Fix a bug here when macros in the environment have been compiled.
* cl-macs.el (block):
* cl-macs.el (return):
* cl-macs.el (return-from):
Be more careful about lexical scope in these macros.
* cl.el:
* cl.el ('cl-block-wrapper): Removed.
* cl.el ('cl-block-throw): Removed.
These aren't needed in code generated by this XEmacs. They
shouldn't be needed in code generated by XEmacs 21.4, but if it
turns out the packages do need them, we can put them back.
2011-01-30 Mike Sperber <mike@xemacs.org>
* font-lock.el (font-lock-fontify-pending-extents): Don't fail if
`font-lock-mode' is unset, which can happen in the middle of
`revert-buffer'.
2011-01-23 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (delete):
* cl-macs.el (delq):
* cl-macs.el (remove):
* cl-macs.el (remq):
Don't use the compiler macro if these functions were given the
wrong number of arguments, as happens in lisp-tests.el.
* cl-seq.el (remove, remq): Removed.
I added these to subr.el, and forgot to remove them from here.
2011-01-22 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-setq, byte-compile-set):
Remove kludge allowing keywords' values to be set, all the code
that does that is gone.
* cl-compat.el (elt-satisfies-test-p):
* faces.el (set-face-parent):
* faces.el (face-doc-string):
* gtk-font-menu.el:
* gtk-font-menu.el (gtk-reset-device-font-menus):
* msw-font-menu.el:
* msw-font-menu.el (mswindows-reset-device-font-menus):
* package-get.el (package-get-installedp):
* select.el (select-convert-from-image-data):
* sound.el:
* sound.el (load-sound-file):
* x-font-menu.el (x-reset-device-font-menus-core):
Don't quote keywords, they're self-quoting, and the
win from backward-compatibility is sufficiently small now that the
style problem overrides it.
2011-01-22 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (block, return-from): Require that NAME be a symbol
in these macros, as always documented in the #'block docstring and
as required by Common Lisp.
* descr-text.el (unidata-initialize-unihan-database):
Correct the use of non-symbols in #'block and #'return-from in
this function.
2011-01-15 Aidan Kehoe <kehoea@parhasard.net>
* cl-extra.el (concatenate): Accept more complicated TYPEs in this
function, handing the sequences over to #'coerce if we don't
understand them here.
* cl-macs.el (inline): Don't proclaim #'concatenate as inline, its
compiler macro is more useful than doing that.
2011-01-11 Aidan Kehoe <kehoea@parhasard.net>
* subr.el (delete, delq, remove, remq): Move #'remove, #'remq
here, they don't belong in cl-seq.el; move #'delete, #'delq here
from fns.c, implement them in terms of #'delete*, allowing support
for sequences generally.
* update-elc.el (do-autoload-commands): Use #'delete*, not #'delq
here, now the latter's no longer dumped.
* cl-macs.el (delete, delq): Add compiler macros transforming
#'delete and #'delq to #'delete* calls.
2011-01-10 Aidan Kehoe <kehoea@parhasard.net>
* dialog.el (make-dialog-box): Correct a misplaced parenthesis
here, thank you Mats Lidell in 87zkr9gqrh.fsf@mail.contactor.se !
2011-01-02 Aidan Kehoe <kehoea@parhasard.net>
* dialog.el (make-dialog-box):
* list-mode.el (display-completion-list):
These functions used to use cl-parsing-keywords; change them to
use defun* instead, fixing the build. (Not sure what led to me
not including this change in d1b17a33450b!)
2011-01-02 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (define-star-compiler-macros):
Make sure the form has ITEM and LIST specified before attempting
to change to calls with explicit tests; necessary for some tests
in lisp-tests.el to compile correctly.
(stable-union, stable-intersection): Add compiler macros for these
functions, in the same way we do for most of the other functions
in cl-seq.el.
2011-01-01 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (dolist, dotimes, do-symbols, macrolet)
(symbol-macrolet):
Define these macros with defmacro* instead of parsing the argument
list by hand, for the sake of style and readability; use backquote
where appropriate, instead of calling #'list and and friends, for
the same reason.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* x-misc.el (device-x-display):
Provide this function, documented in the Lispref for years, but
not existing previously. Thank you Julian Bradfield, thank you
Jeff Mincy.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* cl-seq.el:
Move the heavy lifting from this file to C. Dump the
cl-parsing-keywords macro, but don't use defun* for the functions
we define that do take keywords, dynamic scope lossage makes that
not practical.
* subr.el (sort, fillarray): Move these aliases here.
(map-plist): #'nsublis is now built-in, but at this point #'eql
isn't necessarily available as a test; use #'eq.
* obsolete.el (cl-delete-duplicates): Make this available for old
compiler macros and old code.
(memql): Document that this is equivalent to #'member*, and worse.
* cl.el (adjoin, subst): Removed. These are in C.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* simple.el (assoc-ignore-case): Remove a duplicate definition of
this function (it's already in subr.el).
* iso8859-1.el (char-width):
On non-Mule, make this function equivalent to that produced by
(constantly 1), but preserve its docstring.
* subr.el (subst-char-in-string): Define this in terms of
#'substitute, #'nsubstitute.
(string-width): Define this using #'reduce and #'char-width.
(char-width): Give this a simpler definition, it makes far more
sense to check for mule at load time and redefine, as we do in
iso8859-1.el.
(store-substring): Implement this in terms of #'replace, now
#'replace is cheap.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* update-elc.el (lisp-files-needed-for-byte-compilation)
(lisp-files-needing-early-byte-compilation):
cl-macs belongs in the former, not the latter, it is as
fundamental as bytecomp.el.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* cl.el:
Provde the Common Lisp program-error, type-error as error
symbols. This doesn't nearly go far enough for anyone using the
Common Lisp errors.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (delete-duplicates):
If the form has an incorrect number of arguments, don't attempt a
compiler macroexpansion.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (cl-safe-expr-p):
Forms that start with the symbol lambda are also safe.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (= < > <= >=):
For these functions' compiler macros, the optimisation is safe
even if the first and the last arguments have side effects, since
they're only used the once.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (inline-side-effect-free-compiler-macros):
Unroll a loop here at macro-expansion time, so these compiler
macros are compiled. Use #'eql instead of #'eq in a couple of
places for better style.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-extra.el (notany, notevery): Avoid some dynamic scope
stupidity with local variable names in these functions, when they
weren't prefixed with cl-; go into some more detail in the doc
strings.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* byte-optimize.el (side-effect-free-fns): #'remove, #'remq are
free of side-effects.
(side-effect-and-error-free-fns):
Drop dot, dot-marker from the list.
2010-11-17 Aidan Kehoe <kehoea@parhasard.net>
* cl-extra.el (coerce):
In the argument list, name the first argument OBJECT, not X; the
former name was always used in the doc string and is clearer.
Handle vector type specifications which include the length of the
target sequence, error if there's a mismatch.
* cl-macs.el (cl-make-type-test): Handle type specifications
starting with the symbol 'eql.
2010-11-14 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (eql): Don't remove the byte-compile property of this
symbol. That was necessary to override a bug in bytecomp.el where
#'eql was confused with #'eq, which bug we no longer have.
If neither expression is constant, don't attempt to handle the
expression in this compiler macro, leave it to byte-compile-eql,
which produces better code anyway.
* bytecomp.el (eq): #'eql is not the function associated with the
byte-eq byte code.
(byte-compile-eql): Add an explicit compile method for this
function, for cases where the cl-macs compiler macro hasn't
reduced it to #'eq or #'equal.
2010-10-25 Aidan Kehoe <kehoea@parhasard.net>
Add compiler macros and compilation sanity-checking for various
functions that take keywords.
* byte-optimize.el (side-effect-free-fns): #'symbol-value is
side-effect free and not error free.
* bytecomp.el (byte-compile-normal-call): Check keyword argument
lists for sanity; store information about the positions where
keyword arguments start using the new byte-compile-keyword-start
property.
* cl-macs.el (cl-const-expr-val): Take a new optional argument,
cl-not-constant, defaulting to nil, in this function; return it if
the expression is not constant.
(cl-non-fixnum-number-p): Make this into a separate function, we
want to pass it to #'every.
(eql): Use it.
(define-star-compiler-macros): Use the same code to generate the
member*, assoc* and rassoc* compiler macros; special-case some
code in #'add-to-list in subr.el.
(remove, remq): Add compiler macros for these two functions, in
preparation for #'remove being in C.
(define-foo-if-compiler-macros): Transform (remove-if-not ...) calls to
(remove ... :if-not) at compile time, which will be a real win
once the latter is in C.
(define-substitute-if-compiler-macros)
(define-subst-if-compiler-macros): Similarly for these functions.
(delete-duplicates): Change this compiler macro to use
#'plists-equal; if we don't have information about the type of
SEQUENCE at compile time, don't bother attempting to inline the
call, the function will be in C soon enough.
(equalp): Remove an old commented-out compiler macro for this, if
we want to see it it's in version control.
(subst-char-in-string): Transform this to a call to nsubstitute or
nsubstitute, if that is appropriate.
* cl.el (ldiff): Don't call setf here, this makes for a load-time
dependency problem in cl-macs.el
2010-06-14 Stephen J. Turnbull <stephen@xemacs.org>
* term/vt100.el:
Refer to XEmacs, not GNU Emacs, in permissions.
* term/bg-mouse.el:
* term/sup-mouse.el:
Put copyright notice in canonical "Copyright DATE AUTHOR" form.
Refer to XEmacs, not GNU Emacs, in permissions.
* site-load.el:
Add permission boilerplate.
* mule/canna-leim.el:
* alist.el:
Refer to XEmacs, not APEL/this program, in permissions.
* mule/canna-leim.el:
Remove my copyright, I've assigned it to the FSF.
2010-06-14 Stephen J. Turnbull <stephen@xemacs.org>
* gtk.el:
* gtk-widget-accessors.el:
* gtk-package.el:
* gtk-marshal.el:
* gtk-compose.el:
* gnome.el:
Add copyright notice based on internal evidence.
2010-06-14 Stephen J. Turnbull <stephen@xemacs.org>
* easymenu.el: Add reference to COPYING to permission notice.
* gutter.el:
* gutter-items.el:
* menubar-items.el:
Fix typo "Xmacs" in permissions notice.
2010-06-14 Stephen J. Turnbull <stephen@xemacs.org>
* auto-save.el:
* font.el:
* fontconfig.el:
* mule/kinsoku.el:
Add "part of XEmacs" text to permission notice.
2010-10-14 Aidan Kehoe <kehoea@parhasard.net>
* byte-optimize.el (side-effect-free-fns):
* cl-macs.el (remf, getf):
* cl-extra.el (tailp, cl-set-getf, cl-do-remf):
* cl.el (ldiff, endp):
Tighten up Common Lisp compatibility for #'ldiff, #'endp, #'tailp;
add circularity checking for the first two.
#'cl-set-getf and #'cl-do-remf were Lisp implementations of
#'plist-put and #'plist-remprop; change the names to aliases,
changes the macros that use them to using #'plist-put and
#'plist-remprop directly.
2010-10-12 Aidan Kehoe <kehoea@parhasard.net>
* abbrev.el (fundamental-mode-abbrev-table, global-abbrev-table):
Create both these abbrev tables using the usual
#'define-abbrev-table calls, rather than attempting to
special-case them.
* cl-extra.el: Force cl-macs to be loaded here, if cl-extra.el is
being loaded interpreted. Previously other, later files would
redundantly call (load "cl-macs") when interpreted, it's more
reasonable to do it here, once.
* cmdloop.el (read-quoted-char-radix): Use defcustom here, we
don't have any dump-order dependencies that would prevent that.
* custom.el (eval-when-compile): Don't load cl-macs when
interpreted or when byte-compiling, rely on cl-extra.el in the
former case and the appropriate entry in bytecomp-load-hook in the
latter. Get rid of custom-declare-variable-list, we have no
dump-time dependencies that would require it.
* faces.el (eval-when-compile): Don't load cl-macs when
interpreted or when byte-compiling.
* packages.el: Remove some inaccurate comments.
* post-gc.el (cleanup-simple-finalizers): Use #'delete-if-not
here, now the order of preloaded-file-list has been changed to
make it available.
* subr.el (custom-declare-variable-list): Remove. No need for it.
Also remove a stub define-abbrev-table from this file, given the
current order of preloaded-file-list there's no need for it.
2010-10-10 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-constp) Forms quoted with FUNCTION are
also constant.
(byte-compile-initial-macro-environment): In #'the, if FORM is
constant and does not match TYPE, warn at byte-compile time.
2010-10-10 Aidan Kehoe <kehoea@parhasard.net>
* backquote.el (bq-vector-contents, bq-list*): Remove; the former
is equivalent to (append VECTOR nil), the latter to (list* ...).
(bq-process-2): Use (append VECTOR nil) instead of using
#'bq-vector-contents to convert to a list.
(bq-process-1): Now we use list* instead of bq-list
* subr.el (list*): Moved from cl.el, since it is now required to
be available the first time a backquoted form is encountered.
* cl.el (list*): Move to subr.el.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* test-harness.el (Check-Message):
Add an omitted comma here, thank you the buildbot.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* hash-table.el (hash-table-key-list, hash-table-value-list)
(hash-table-key-value-alist, hash-table-key-value-plist):
Remove some useless #'nreverse calls in these files; our hash
tables have no order, it's not helpful to pretend they do.
* behavior.el (read-behavior):
Do the same in this file, in some code evidently copied from
hash-table.el.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* info.el (Info-insert-dir):
* format.el (format-deannotate-region):
* files.el (cd, save-buffers-kill-emacs):
Use #'some, #'every and related functions for applying boolean
operations to lists, instead of rolling our own ones that cons and
don't short-circuit.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-initial-macro-environment):
* cl-macs.el (the):
Rephrase the docstring, make its implementation when compiling
files a little nicer.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* descr-text.el (unidata-initialize-unicodedata-database)
(unidata-initialize-unihan-database, describe-char-unicode-data)
(describe-char-unicode-data):
Wrap calls to the database functions with (with-fboundp ...),
avoiding byte compile warnings on builds without support for the
database functions.
(describe-char): (reduce #'max ...), not (apply #'max ...), no
need to cons needlessly.
(describe-char): Remove a redundant lambda wrapping
#'extent-properties.
(describe-char-unicode-data): Call #'nsubst when replacing "" with
nil in the result of #'split-string, instead of consing inside
mapcar.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* x-faces.el (x-available-font-sizes):
* specifier.el (let-specifier):
* package-ui.el (pui-add-required-packages):
* msw-faces.el (mswindows-available-font-sizes):
* modeline.el (modeline-minor-mode-menu):
* minibuf.el (minibuf-directory-files):
Replace the O2N (delq nil (mapcar (lambda (W) (and X Y)) Z)) with
the ON (mapcan (lambda (W) (and X (list Y))) Z) in these files.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (= < > <= >=):
When these functions are handed more than two arguments, and those
arguments have no side effects, transform to a series of two
argument calls, avoiding funcall in the byte-compiled code.
* mule/mule-cmds.el (finish-set-language-environment):
Take advantage of this change in a function called 256 times at
startup.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-function-form, byte-compile-quote)
(byte-compile-quote-form):
Warn at compile time, and error at runtime, if a (quote ...) or a
(function ...) form attempts to quote more than one object.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* byte-optimize.el (byte-optimize-apply): Transform (apply 'nconc
(mapcar ...)) to (mapcan ...); warn about use of the first idiom.
* update-elc.el (do-autoload-commands):
* packages.el (packages-find-package-library-path):
* frame.el (frame-list):
* extents.el (extent-descendants):
* etags.el (buffer-tag-table-files):
* dumped-lisp.el (preloaded-file-list):
* device.el (device-list):
* bytecomp-runtime.el (proclaim-inline, proclaim-notinline)
Use #'mapcan, not (apply #'nconc (mapcar ...) in all these files.
* bytecomp-runtime.el (eval-when-compile, eval-and-compile):
In passing, mention that these macros also evaluate the body when
interpreted.
tests/ChangeLog addition:
2011-02-07 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Test lexical scope for `block', `return-from'; add a
Known-Bug-Expect-Failure for a contorted example that fails when
byte-compiled.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 07 Feb 2011 12:01:24 +0000 |
| parents | 3c3c1d139863 |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 442 | 1 /* Utility routines for XEmacs on Windows 9x, NT and Cygwin. |
| 2367 | 2 Copyright (C) 2000, 2001, 2002, 2004 Ben Wing. |
| 442 | 3 |
| 4 This file is part of XEmacs. | |
| 5 | |
| 6 XEmacs is free software; you can redistribute it and/or modify it | |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) any | |
| 9 later version. | |
| 10 | |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with XEmacs; see the file COPYING. If not, write to the Free | |
| 18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 19 02111-1307, USA. */ | |
| 20 | |
| 21 #include <config.h> | |
| 22 #include "lisp.h" | |
| 23 | |
| 24 #include "buffer.h" | |
| 771 | 25 #include "console-msw.h" |
| 2526 | 26 #include "hash.h" |
| 27 #include "profile.h" | |
| 611 | 28 |
| 771 | 29 #include "sysfile.h" |
| 30 #include "sysproc.h" | |
| 859 | 31 #include "syssignal.h" |
| 611 | 32 #include "systime.h" |
| 442 | 33 |
| 2367 | 34 |
| 35 | |
| 36 /* | |
| 37 | |
| 38 Info on Windows issues: | |
| 39 | |
| 40 (Info-goto-node "(internals)Interface to MS Windows") | |
| 41 | |
| 42 ------- @file{src/config.h}.in vs. @file{nt/xemacs.mak} ------- | |
| 43 | |
| 44 See @file{src/config.h.in} more more info. | |
| 45 */ | |
| 46 | |
| 771 | 47 /* Control conversion of upper case file names to lower case. |
| 48 nil means no, t means yes. */ | |
| 49 Lisp_Object Vmswindows_downcase_file_names; | |
| 50 | |
| 2526 | 51 struct hash_table *mswindows_read_link_hash; |
| 52 | |
| 771 | 53 int mswindows_windows9x_p; |
| 2526 | 54 Boolint mswindows_shortcuts_are_symlinks; |
| 771 | 55 |
| 442 | 56 pfSwitchToThread_t xSwitchToThread; |
| 57 | |
| 771 | 58 pfNetUserEnum_t xNetUserEnum; |
| 59 pfNetApiBufferFree_t xNetApiBufferFree; | |
| 60 | |
| 61 /* Convert a filename in standard Win32 format into our internal format | |
| 62 (which may be significantly different if we're running on Cygwin), and | |
| 63 turn it into a file: URL. Return a newly malloc()ed string. | |
| 442 | 64 |
| 771 | 65 #### This comes from code that just prepended `file:', which is not |
| 66 good. See comment in mswindows_dde_callback(), case XTYP_EXECUTE. | |
| 67 */ | |
| 867 | 68 Ibyte * |
| 69 urlify_filename (Ibyte *filename) | |
| 771 | 70 { |
| 867 | 71 Ibyte *pseudo_url; |
| 771 | 72 |
|
4834
b3ea9c582280
Use new cygwin_conv_path API with Cygwin 1.7 for converting names between Win32 and POSIX, UTF-8-aware, with attendant changes elsewhere
Ben Wing <ben@xemacs.org>
parents:
2526
diff
changeset
|
73 INTERNAL_MSWIN_TO_LOCAL_FILE_FORMAT (filename, filename); |
| 867 | 74 pseudo_url = xnew_array (Ibyte, 5 + qxestrlen (filename) + 1); |
| 2367 | 75 qxestrcpy_ascii (pseudo_url, "file:"); |
| 771 | 76 qxestrcat (pseudo_url, filename); |
| 77 /* URL's only have /, no backslash */ | |
| 78 for (filename = pseudo_url; *filename; filename++) | |
| 79 { | |
| 80 if (*filename == '\\') | |
| 81 *filename = '/'; | |
| 82 } | |
| 442 | 83 |
| 771 | 84 return pseudo_url; |
| 85 } | |
| 531 | 86 |
| 826 | 87 /* Convert a Win32 file name in tstr format into a local-format file name |
| 88 in internal format. */ | |
| 89 | |
| 442 | 90 Lisp_Object |
| 826 | 91 tstr_to_local_file_format (Extbyte *path) |
| 442 | 92 { |
|
4981
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Cleanups/renaming of EXTERNAL_TO_C_STRING and friends
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
93 Ibyte *pathint = TSTR_TO_ITEXT (path); |
|
4aebb0131297
Cleanups/renaming of EXTERNAL_TO_C_STRING and friends
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
94 INTERNAL_MSWIN_TO_LOCAL_FILE_FORMAT (pathint, pathint); |
| 771 | 95 |
|
4981
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Cleanups/renaming of EXTERNAL_TO_C_STRING and friends
Ben Wing <ben@xemacs.org>
parents:
4953
diff
changeset
|
96 return build_istring (pathint); |
| 771 | 97 } |
| 98 | |
| 99 /* Normalize filename by converting all path separators to the specified | |
| 100 separator. Also conditionally convert all-upper-case path name | |
| 101 components to lower case. Return a newly malloc()ed string. | |
| 102 */ | |
| 103 | |
| 867 | 104 Ibyte * |
| 105 mswindows_canonicalize_filename (Ibyte *name) | |
| 771 | 106 { |
| 867 | 107 Ibyte *fp = name; |
| 771 | 108 DECLARE_EISTRING (newname); |
| 109 DECLARE_EISTRING (component); | |
| 110 int do_casefrob = 1; | |
| 442 | 111 |
| 771 | 112 /* Always lower-case drive letters a-z, even if the filesystem |
| 113 preserves case in filenames. | |
| 114 This is so filenames can be compared by string comparison | |
| 115 functions that are case-sensitive. Even case-preserving filesystems | |
| 116 do not distinguish case in drive letters. */ | |
| 117 if (name[0] >= 'A' && name[0] <= 'Z' && name[1] == ':') | |
| 118 { | |
| 119 eicat_ch (newname, name[0] + 'a' - 'A'); | |
| 120 eicat_ch (newname, ':'); | |
| 121 fp += 2; | |
| 122 } | |
| 123 | |
| 124 while (1) | |
| 125 { | |
| 867 | 126 Ichar ch = itext_ichar (fp); |
| 771 | 127 if (LOWERCASEP (0, ch)) |
| 128 do_casefrob = 0; /* don't convert this element */ | |
| 442 | 129 |
| 771 | 130 if (ch == 0 || IS_ANY_SEP (ch)) |
| 131 { | |
| 132 if (do_casefrob && !NILP (Vmswindows_downcase_file_names)) | |
| 133 eilwr (component); | |
| 134 do_casefrob = 1; | |
| 135 eicat_ei (newname, component); | |
| 136 eireset (component); | |
| 137 if (IS_DIRECTORY_SEP (ch)) | |
| 138 eicat_ch (newname, DIRECTORY_SEP); | |
| 139 else if (ch) | |
| 140 eicat_ch (newname, ch); | |
| 141 else | |
| 142 break; | |
| 143 } | |
| 144 else | |
| 145 eicat_ch (component, ch); | |
| 146 | |
| 867 | 147 INC_IBYTEPTR (fp); |
| 771 | 148 } |
| 149 | |
| 150 return eicpyout_malloc (newname, 0); | |
| 442 | 151 } |
| 152 | |
| 814 | 153 Extbyte * |
| 154 mswindows_get_module_file_name (void) | |
| 155 { | |
| 156 Extbyte *path = NULL; | |
| 157 int bufsize = 4096; | |
| 158 int cchpathsize; | |
| 159 | |
| 160 while (1) | |
| 161 { | |
| 162 path = (Extbyte *) xrealloc (path, bufsize * XETCHAR_SIZE); | |
| 163 cchpathsize = qxeGetModuleFileName (NULL, path, bufsize); | |
| 164 if (!cchpathsize) | |
| 165 return 0; | |
| 166 if (cchpathsize + 1 <= bufsize) | |
| 167 break; | |
| 168 bufsize *= 2; | |
| 169 } | |
| 170 | |
| 171 return path; | |
| 172 } | |
| 173 | |
| 442 | 174 static void |
| 175 init_potentially_nonexistent_functions (void) | |
| 176 { | |
| 771 | 177 HMODULE h_kernel = qxeGetModuleHandle (XETEXT ("kernel32")); |
| 531 | 178 /* the following does not seem to get mapped in automatically */ |
| 771 | 179 HMODULE h_netapi = qxeLoadLibrary (XETEXT ("netapi32.dll")); |
| 442 | 180 |
| 181 if (h_kernel) | |
| 182 { | |
| 183 xSwitchToThread = | |
| 184 (pfSwitchToThread_t) GetProcAddress (h_kernel, "SwitchToThread"); | |
| 185 } | |
| 186 | |
| 531 | 187 if (h_netapi) |
| 188 { | |
| 189 xNetUserEnum = | |
| 190 (pfNetUserEnum_t) GetProcAddress (h_netapi, "NetUserEnum"); | |
| 191 xNetApiBufferFree = | |
| 192 (pfNetApiBufferFree_t) GetProcAddress (h_netapi, "NetApiBufferFree"); | |
| 193 } | |
| 442 | 194 } |
| 195 | |
| 771 | 196 static Lisp_Object |
| 197 mswindows_lisp_error_1 (int errnum, int no_recurse) | |
| 198 { | |
| 199 LPTSTR lpMsgBuf; | |
| 200 Lisp_Object result; | |
| 867 | 201 Ibyte *inres; |
| 771 | 202 Bytecount len; |
| 203 int i; | |
| 204 | |
| 205 /* The docs for FormatMessage say: | |
| 206 | |
| 207 If you pass a specific LANGID in this parameter, FormatMessage | |
| 208 will return a message for that LANGID only. If the function | |
| 209 cannot find a message for that LANGID, it returns | |
| 210 ERROR_RESOURCE_LANG_NOT_FOUND. If you pass in zero, FormatMessage | |
| 211 looks for a message for LANGIDs in the following order: | |
| 212 | |
| 213 Language neutral | |
| 214 Thread LANGID, based on the thread's locale value | |
| 215 User default LANGID, based on the user's default locale value | |
| 216 System default LANGID, based on the system default locale value | |
| 217 US English | |
| 218 | |
| 219 If FormatMessage doesn't find a message for any of the preceding | |
| 220 LANGIDs, it returns any language message string that is present. If | |
| 221 that fails, it returns ERROR_RESOURCE_LANG_NOT_FOUND. (Note, this is | |
| 222 returned through GetLastError(), not the return value.) | |
| 223 | |
| 224 #### what the hell is "language neutral"? i can find no info on this. | |
| 225 so let's do our own language first. | |
| 226 */ | |
| 227 | |
| 228 for (i = 0; ; i++) | |
| 229 { | |
| 230 int lang = 0; | |
| 231 int retval; | |
| 232 | |
| 233 switch (i) | |
| 234 { | |
| 235 #ifdef MULE | |
| 236 /* Urk! Windows 95 doesn't let you set the thread locale! | |
| 237 so we have to maintain our own. */ | |
| 238 case 0: lang = LANGIDFROMLCID (mswindows_current_locale ()); break; | |
| 239 case 1: lang = 0; break; | |
| 240 #else | |
| 241 case 0: lang = 0; break; | |
| 242 #endif | |
| 2500 | 243 default: ABORT (); |
| 771 | 244 } |
| 245 | |
| 246 retval = qxeFormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER | |
| 247 | FORMAT_MESSAGE_FROM_SYSTEM, | |
| 248 NULL, errnum, lang, | |
| 249 /* yeah, i'm casting a char ** to a char *. | |
| 250 ya gotta problem widdat? */ | |
| 251 (Extbyte *) &lpMsgBuf, 0, NULL); | |
| 252 | |
| 253 if (!retval) | |
| 254 { | |
| 255 if (lang != 0) | |
| 256 continue; | |
| 257 | |
| 258 if (no_recurse) | |
| 259 return emacs_sprintf_string | |
| 260 ("Unknown error code %d (error return %ld from FormatMessage())", | |
| 261 errnum, GetLastError ()); | |
| 262 else | |
| 263 return emacs_sprintf_string | |
| 264 ("Unknown error code %d (error return %s from FormatMessage())", | |
| 265 /* It's OK, emacs_sprintf_string disables GC explicitly */ | |
| 266 errnum, XSTRING_DATA (mswindows_lisp_error_1 (errnum, 1))); | |
| 267 } | |
| 268 else | |
| 269 break; | |
| 270 } | |
| 271 | |
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272 inres = TSTR_TO_ITEXT (lpMsgBuf); |
| 771 | 273 len = qxestrlen (inres); |
| 274 /* Messages tend to end with a period and newline */ | |
| 2367 | 275 if (len >= 3 && !qxestrcmp_ascii (inres + len - 3, ".\r\n")) |
| 771 | 276 len -= 3; |
| 277 result = make_string (inres, len); | |
| 278 | |
| 279 LocalFree (lpMsgBuf); | |
| 280 return result; | |
| 281 } | |
| 282 | |
| 283 Lisp_Object | |
| 284 mswindows_lisp_error (int errnum) | |
| 285 { | |
| 286 return mswindows_lisp_error_1 (errnum, 0); | |
| 287 } | |
| 288 | |
| 289 void | |
| 4932 | 290 mswindows_output_last_error (const Ascbyte *frob) |
| 771 | 291 { |
| 292 int errval = GetLastError (); | |
| 293 Lisp_Object errmess = mswindows_lisp_error (errval); | |
| 294 | |
| 295 stderr_out ("last error during %s is %d: %s\n", | |
| 296 frob, errval, XSTRING_DATA (errmess)); | |
| 297 } | |
| 298 | |
| 299 DOESNT_RETURN | |
|
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300 mswindows_report_process_error (const Ascbyte *reason, Lisp_Object data, |
| 771 | 301 int errnum) |
| 302 { | |
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303 signal_error_2 (Qprocess_error, reason, mswindows_lisp_error (errnum), data); |
| 771 | 304 } |
| 305 | |
| 442 | 306 DEFUN ("mswindows-shell-execute", Fmswindows_shell_execute, 2, 4, 0, /* |
| 307 Get Windows to perform OPERATION on DOCUMENT. | |
| 308 This is a wrapper around the ShellExecute system function, which | |
| 309 invokes the application registered to handle OPERATION for DOCUMENT. | |
| 310 OPERATION is typically \"open\", \"print\" or \"explore\" (but can be | |
| 311 nil for the default action), and DOCUMENT is typically the name of a | |
| 312 document file or URL, but can also be a program executable to run or | |
| 313 a directory to open in the Windows Explorer. | |
| 314 | |
| 315 If DOCUMENT is a program executable, PARAMETERS can be a string | |
| 316 containing command line parameters, but otherwise should be nil. | |
| 317 | |
| 318 SHOW-FLAG can be used to control whether the invoked application is hidden | |
| 319 or minimized. If SHOW-FLAG is nil, the application is displayed normally, | |
| 320 otherwise it is an integer representing a ShowWindow flag: | |
| 321 | |
| 322 0 - start hidden | |
| 323 1 - start normally | |
| 324 3 - start maximized | |
| 325 6 - start minimized | |
| 326 */ | |
| 327 (operation, document, parameters, show_flag)) | |
| 328 { | |
| 329 /* Encode filename and current directory. */ | |
| 330 Lisp_Object current_dir = Ffile_name_directory (document); | |
| 331 int ret; | |
| 332 | |
| 333 CHECK_STRING (document); | |
| 334 | |
| 335 if (NILP (current_dir)) | |
| 336 current_dir = current_buffer->directory; | |
| 337 | |
| 771 | 338 { |
| 339 Extbyte *opext = NULL; | |
| 340 Extbyte *parmext = NULL; | |
| 341 Extbyte *path = NULL; | |
| 342 Extbyte *doc = NULL; | |
| 442 | 343 |
| 771 | 344 if (STRINGP (operation)) |
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345 opext = LISP_STRING_TO_TSTR (operation); |
| 2526 | 346 /* #### What about path names, which may be links? */ |
| 771 | 347 if (STRINGP (parameters)) |
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348 parmext = LISP_STRING_TO_TSTR (parameters); |
| 771 | 349 if (STRINGP (current_dir)) |
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350 LISP_LOCAL_FILE_FORMAT_TO_TSTR (current_dir, path); |
| 826 | 351 if (STRINGP (document)) |
|
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352 LISP_LOCAL_FILE_FORMAT_MAYBE_URL_TO_TSTR (document, doc); |
| 442 | 353 |
| 771 | 354 ret = (int) qxeShellExecute (NULL, opext, doc, parmext, path, |
| 355 (INTP (show_flag) ? | |
| 356 XINT (show_flag) : SW_SHOWDEFAULT)); | |
| 357 } | |
| 442 | 358 |
| 771 | 359 if (ret <= 32) |
| 360 { | |
| 361 /* Convert to more standard errors */ | |
| 362 #define FROB(a, b) if (ret == a) ret = b | |
| 363 FROB (SE_ERR_ACCESSDENIED, ERROR_ACCESS_DENIED); | |
| 364 FROB (SE_ERR_ASSOCINCOMPLETE, ERROR_NO_ASSOCIATION); | |
| 365 FROB (SE_ERR_DDEBUSY, ERROR_DDE_FAIL); | |
| 366 FROB (SE_ERR_DDEFAIL, ERROR_DDE_FAIL); | |
| 367 FROB (SE_ERR_DDETIMEOUT, ERROR_DDE_FAIL); | |
| 368 FROB (SE_ERR_DLLNOTFOUND, ERROR_DLL_NOT_FOUND); | |
| 369 FROB (SE_ERR_FNF, ERROR_FILE_NOT_FOUND); | |
| 370 FROB (SE_ERR_NOASSOC, ERROR_NO_ASSOCIATION); | |
| 371 FROB (SE_ERR_OOM, ERROR_NOT_ENOUGH_MEMORY); | |
| 372 FROB (SE_ERR_PNF, ERROR_PATH_NOT_FOUND); | |
| 373 FROB (SE_ERR_SHARE, ERROR_SHARING_VIOLATION); | |
| 374 #undef FROB | |
| 375 | |
| 376 mswindows_report_process_error ("Running ShellExecute", | |
| 377 ret == ERROR_PATH_NOT_FOUND ? | |
| 378 list4 (Qunbound, operation, document, | |
| 379 current_dir) : | |
| 380 list3 (Qunbound, operation, document), | |
| 381 ret); | |
| 382 } | |
| 442 | 383 |
| 771 | 384 return Qt; |
| 442 | 385 } |
| 386 | |
| 673 | 387 #ifdef CYGWIN |
| 388 DEFUN ("mswindows-cygwin-to-win32-path", Fmswindows_cygwin_to_win32_path, 1, 1, 0, /* | |
| 389 Get the cygwin environment to convert the Unix PATH to win32 format. | |
| 390 No expansion is performed, all conversion is done by the cygwin runtime. | |
| 391 */ | |
| 392 (path)) | |
| 393 { | |
| 867 | 394 Ibyte *p; |
| 673 | 395 CHECK_STRING (path); |
| 396 | |
| 397 /* There appears to be a bug in the cygwin conversion routines in | |
| 398 that they are not idempotent. */ | |
| 399 p = XSTRING_DATA (path); | |
| 400 if (isalpha (p[0]) && (IS_DEVICE_SEP (p[1]))) | |
| 401 return path; | |
| 402 | |
| 403 /* Use mule and cygwin-safe APIs top get at file data. */ | |
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404 LOCAL_FILE_FORMAT_TO_INTERNAL_MSWIN (p, p); |
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405 return build_istring (p); |
| 673 | 406 } |
| 407 #endif | |
| 408 | |
| 2526 | 409 struct read_link_hash |
| 410 { | |
| 411 Ibyte *resolved; | |
| 412 DWORD ticks; | |
| 413 }; | |
| 414 | |
| 415 static Ibyte * | |
| 416 mswindows_read_link_1 (const Ibyte *fname) | |
| 417 { | |
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418 #if defined (NO_CYGWIN_COM_SUPPORT) || !defined (HAVE_MS_WINDOWS) |
| 2526 | 419 return NULL; |
| 420 #else | |
| 421 Ibyte *retval = NULL; | |
| 422 Extbyte *fnameext; | |
| 423 HANDLE fh; | |
| 424 struct read_link_hash *rlh; | |
| 425 DWORD ticks; | |
| 426 | |
| 427 /* The call below to resolve a link is rather time-consuming. | |
| 428 I tried implementing a simple cache based on creation and write time | |
| 429 of the file, but that didn't help enough -- maybe 30% faster but still | |
| 430 a lot of time spent here. So just do something cheesy and don't | |
| 431 check again if we've recently (< a second) done so. */ | |
| 432 | |
| 433 if (!mswindows_read_link_hash) | |
| 434 mswindows_read_link_hash = make_string_hash_table (1000); | |
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435 fnameext = ITEXT_TO_TSTR (fname); |
| 2526 | 436 |
| 437 /* See if we can find a cached value. */ | |
| 438 | |
| 439 /* The intermediate cast fools gcc into not outputting strict-aliasing | |
| 440 complaints */ | |
| 441 ticks = GetTickCount (); | |
| 442 if (!gethash (fname, mswindows_read_link_hash, | |
| 443 (const void **) (void *) &rlh)) | |
| 444 { | |
| 445 rlh = xnew_and_zero (struct read_link_hash); | |
| 446 puthash (qxestrdup (fname), rlh, mswindows_read_link_hash); | |
| 447 } | |
| 448 else if (ticks - rlh->ticks < 1000) | |
| 449 { | |
| 450 return rlh->resolved ? qxestrdup (rlh->resolved) : NULL; | |
| 451 } | |
| 452 | |
| 453 rlh->ticks = ticks; | |
| 454 | |
| 455 /* Retrieve creation/write time of link file. */ | |
| 456 | |
| 457 /* No access rights required to get info. */ | |
| 458 if ((fh = qxeCreateFile (fnameext, 0, 0, NULL, OPEN_EXISTING, 0, NULL)) | |
| 459 == INVALID_HANDLE_VALUE) | |
| 460 { | |
| 461 CloseHandle (fh); | |
| 462 return NULL; | |
| 463 } | |
| 464 | |
| 465 CloseHandle (fh); | |
| 466 | |
| 467 /* #### | |
| 468 | |
| 469 Note the following in the docs: | |
| 470 | |
| 471 Note: The IShellLink interface has an ANSI version | |
| 472 (IShellLinkA) and a Unicode version (IShellLinkW). The | |
| 473 version that will be used depends on whether you compile | |
| 474 for ANSI or Unicode. However, Microsoft® Windows 95 and | |
| 475 Microsoft® Windows 98 only support IShellLinkA. | |
| 476 | |
| 477 We haven't yet implemented COM support in the | |
| 478 Unicode-splitting library. I don't quite understand how | |
| 479 COM works yet, but it looks like what's happening is | |
| 480 that the ShellLink class implements both the IShellLinkA | |
| 481 and IShellLinkW interfaces. To make this work at | |
| 482 run-time, we have to do something like this: | |
| 483 | |
| 484 -- define a new interface qxeIShellLink that uses | |
| 485 Extbyte * instead of LPSTR or LPWSTR. (not totally | |
| 486 necessary since Extbyte * == LPSTR). | |
| 487 | |
| 488 -- define a new class qxeShellLink that implements | |
| 489 qxeIShellLink. the methods on this class need to create | |
| 490 a shadow ShellLink object to do all the real work, and | |
| 491 call the corresponding function from either the | |
| 492 IShellLinkA or IShellLinkW interfaces on this object, | |
| 493 depending on whether XEUNICODE_P is defined. | |
| 494 | |
| 495 -- with appropriate preprocessor magic, of course, we | |
| 496 could make things appear transparent; but we've decided | |
| 497 not to do preprocessor magic for the moment. | |
| 498 */ | |
| 499 | |
| 500 /* #### Not Unicode-split for the moment; we have to do it | |
| 501 ourselves. */ | |
| 502 if (XEUNICODE_P) | |
| 503 { | |
| 504 IShellLinkW *psl; | |
| 505 | |
| 506 if (CoCreateInstance ( | |
| 507 XECOMID (CLSID_ShellLink), | |
| 508 NULL, | |
| 509 CLSCTX_INPROC_SERVER, | |
| 510 XECOMID (IID_IShellLinkW), | |
| 511 &VOIDP_CAST (psl)) == S_OK) | |
| 512 { | |
| 513 IPersistFile *ppf; | |
| 514 | |
| 515 if (XECOMCALL2 (psl, QueryInterface, | |
| 516 XECOMID (IID_IPersistFile), | |
| 517 &VOIDP_CAST (ppf)) == S_OK) | |
| 518 { | |
| 519 Extbyte *fname_unicode; | |
| 520 WIN32_FIND_DATAW wfd; | |
| 4854 | 521 LPWSTR resolved = alloca_array (WCHAR, PATH_MAX_TCHAR + 1); |
| 2526 | 522 |
| 523 /* Always Unicode. Not obvious from the | |
| 524 IPersistFile documentation, but look under | |
| 525 "Shell Link" for example code. */ | |
| 526 fname_unicode = fnameext; | |
| 527 | |
| 528 if (XECOMCALL2 (ppf, Load, | |
| 529 (LPWSTR) fname_unicode, | |
| 530 STGM_READ) == S_OK && | |
| 531 /* #### YUCK! Docs read | |
| 532 | |
| 533 cchMaxPath | |
| 534 | |
| 535 Maximum number of bytes to copy to the buffer pointed | |
| 536 to by the pszFile parameter. | |
| 537 | |
| 538 But "cch" means "count of characters", not bytes. | |
| 539 I'll assume the doc writers messed up and the | |
| 540 programmer was correct. Also, this approach is safe | |
| 541 even if it's actually the other way around. */ | |
| 542 #if defined (CYGWIN_HEADERS) && W32API_INSTALLED_VER < W32API_VER(2,2) | |
| 543 /* Another Cygwin prototype error, | |
| 544 fixed in v2.2 of w32api */ | |
| 545 XECOMCALL4 (psl, GetPath, (LPSTR) resolved, | |
| 4854 | 546 PATH_MAX_TCHAR, &wfd, 0) |
| 2526 | 547 #else |
| 548 XECOMCALL4 (psl, GetPath, resolved, | |
| 4854 | 549 PATH_MAX_TCHAR, &wfd, 0) |
| 2526 | 550 #endif |
| 551 == S_OK) | |
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552 retval = TSTR_TO_ITEXT_MALLOC (resolved); |
| 2526 | 553 |
| 554 XECOMCALL0 (ppf, Release); | |
| 555 } | |
| 556 | |
| 557 XECOMCALL0 (psl, Release); | |
| 558 } | |
| 559 } | |
| 560 else | |
| 561 { | |
| 562 IShellLinkA *psl; | |
| 563 | |
| 564 if (CoCreateInstance ( | |
| 565 XECOMID (CLSID_ShellLink), | |
| 566 NULL, | |
| 567 CLSCTX_INPROC_SERVER, | |
| 568 XECOMID (IID_IShellLinkA), | |
| 569 &VOIDP_CAST (psl)) == S_OK) | |
| 570 { | |
| 571 IPersistFile *ppf; | |
| 572 | |
| 573 if (XECOMCALL2 (psl, QueryInterface, | |
| 574 XECOMID (IID_IPersistFile), | |
| 575 &VOIDP_CAST (ppf)) == S_OK) | |
| 576 { | |
| 577 Extbyte *fname_unicode; | |
| 578 WIN32_FIND_DATAA wfd; | |
| 4854 | 579 LPSTR resolved = alloca_array (CHAR, PATH_MAX_TCHAR + 1); |
| 2526 | 580 |
| 581 /* Always Unicode. Not obvious from the | |
| 582 IPersistFile documentation, but look under | |
| 583 "Shell Link" for example code. */ | |
|
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584 fname_unicode = ITEXT_TO_EXTERNAL (fname, Qmswindows_unicode); |
| 2526 | 585 |
| 586 if (XECOMCALL2 (ppf, Load, | |
| 587 (LPWSTR) fname_unicode, | |
| 588 STGM_READ) == S_OK | |
| 589 && XECOMCALL4 (psl, GetPath, resolved, | |
| 4854 | 590 PATH_MAX_TCHAR, &wfd, 0) == S_OK) |
|
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591 retval = TSTR_TO_ITEXT_MALLOC (resolved); |
| 2526 | 592 |
| 593 XECOMCALL0 (ppf, Release); | |
| 594 } | |
| 595 | |
| 596 XECOMCALL0 (psl, Release); | |
| 597 } | |
| 598 } | |
| 599 | |
| 600 /* Cache newly found value */ | |
| 601 if (rlh->resolved) | |
|
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|
602 xfree (rlh->resolved); |
| 2526 | 603 rlh->resolved = retval ? qxestrdup (retval) : NULL; |
| 604 | |
| 605 return retval; | |
| 606 #endif /* NO_CYGWIN_COM_SUPPORT */ | |
| 607 } | |
| 608 | |
| 609 /* Resolve a file that may be a shortcut. Accepts either a file ending | |
| 610 with .LNK or without the ending. If a shortcut is found, returns | |
| 611 a value that you must xfree(); otherwise NULL. */ | |
| 612 | |
| 613 Ibyte * | |
| 614 mswindows_read_link (const Ibyte *fname) | |
| 615 { | |
| 616 int len = qxestrlen (fname); | |
| 617 if (len > 4 && !qxestrcasecmp_ascii (fname + len - 4, ".LNK")) | |
| 618 return mswindows_read_link_1 (fname); | |
| 619 else | |
| 620 { | |
| 621 DECLARE_EISTRING (name2); | |
| 622 | |
| 623 eicpy_rawz (name2, fname); | |
| 624 eicat_ascii (name2, ".LNK"); | |
| 625 return mswindows_read_link_1 (eidata (name2)); | |
| 626 } | |
| 627 } | |
| 628 | |
| 629 | |
| 613 | 630 #if defined (WIN32_NATIVE) || defined (CYGWIN_BROKEN_SIGNALS) |
| 631 | |
| 632 /* setitimer() does not exist on native MS Windows, and appears broken | |
| 633 on Cygwin (random lockups when BROKEN_SIGIO is defined), so we | |
| 634 emulate in both cases by using multimedia timers. Furthermore, | |
| 635 the lockups still occur on Cygwin even when we do nothing but | |
| 636 use the standard signalling mechanism -- so we have to emulate | |
| 637 that, too. (But only for timeouts -- we have to use the standard | |
| 638 mechanism for SIGCHLD. Yuck.) | |
| 639 */ | |
| 640 | |
| 641 /*--------------------------------------------------------------------*/ | |
| 642 /* Signal support */ | |
| 643 /*--------------------------------------------------------------------*/ | |
| 644 | |
| 645 #define sigmask(nsig) (1U << nsig) | |
| 646 | |
| 647 /* We can support as many signals as fit into word */ | |
| 648 #define SIG_MAX 32 | |
| 649 | |
| 650 /* Signal handlers. Initial value = 0 = SIG_DFL */ | |
| 651 static mswindows_sighandler signal_handlers[SIG_MAX] = {0}; | |
| 652 | |
| 653 /* Signal block mask: bit set to 1 means blocked */ | |
| 654 unsigned signal_block_mask = 0; | |
| 655 | |
| 656 /* Signal pending mask: bit set to 1 means sig is pending */ | |
| 657 unsigned signal_pending_mask = 0; | |
| 658 | |
| 659 mswindows_sighandler | |
| 660 mswindows_sigset (int nsig, mswindows_sighandler handler) | |
| 661 { | |
| 662 /* We delegate some signals to the system function */ | |
| 663 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT) | |
| 664 return signal (nsig, handler); | |
| 665 | |
| 666 if (nsig < 0 || nsig > SIG_MAX) | |
| 667 { | |
| 668 errno = EINVAL; | |
| 669 return NULL; | |
| 670 } | |
| 671 | |
| 672 /* Store handler ptr */ | |
| 673 { | |
| 674 mswindows_sighandler old_handler = signal_handlers[nsig]; | |
| 675 signal_handlers[nsig] = handler; | |
| 676 return old_handler; | |
| 677 } | |
| 678 } | |
| 679 | |
| 680 int | |
| 681 mswindows_sighold (int nsig) | |
| 682 { | |
| 683 if (nsig < 0 || nsig > SIG_MAX) | |
| 684 return errno = EINVAL; | |
| 685 | |
| 686 signal_block_mask |= sigmask (nsig); | |
| 687 return 0; | |
| 688 } | |
| 689 | |
| 690 int | |
| 691 mswindows_sigrelse (int nsig) | |
| 692 { | |
| 693 if (nsig < 0 || nsig > SIG_MAX) | |
| 694 return errno = EINVAL; | |
| 695 | |
| 696 signal_block_mask &= ~sigmask (nsig); | |
| 697 | |
| 698 if (signal_pending_mask & sigmask (nsig)) | |
| 699 mswindows_raise (nsig); | |
| 700 | |
| 701 return 0; | |
| 702 } | |
| 703 | |
| 704 int | |
| 2286 | 705 mswindows_sigpause (int UNUSED (nsig)) |
| 613 | 706 { |
| 707 /* This is currently not called, because the only call to sigpause | |
| 708 inside XEmacs is with SIGCHLD parameter. Just in case, we put an | |
| 2286 | 709 assert here, so anyone who adds a call to sigpause will be surprised |
| 613 | 710 (or surprise someone else...) */ |
| 711 assert (0); | |
| 712 return 0; | |
| 713 } | |
| 714 | |
| 715 int | |
| 716 mswindows_raise (int nsig) | |
| 717 { | |
| 718 /* We delegate some raises to the system routine */ | |
| 719 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT) | |
| 720 return raise (nsig); | |
| 721 | |
| 722 if (nsig < 0 || nsig > SIG_MAX) | |
| 723 return errno = EINVAL; | |
| 724 | |
| 725 /* If the signal is blocked, remember to issue later */ | |
| 726 if (signal_block_mask & sigmask (nsig)) | |
| 727 { | |
| 728 signal_pending_mask |= sigmask (nsig); | |
| 729 return 0; | |
| 730 } | |
| 731 | |
| 732 if (signal_handlers[nsig] == SIG_IGN) | |
| 733 return 0; | |
| 734 | |
| 735 if (signal_handlers[nsig] != SIG_DFL) | |
| 736 { | |
| 737 (*signal_handlers[nsig]) (nsig); | |
| 738 return 0; | |
| 739 } | |
| 740 | |
| 741 /* Default signal actions */ | |
| 742 if (nsig == SIGALRM || nsig == SIGPROF) | |
| 743 exit (3); | |
| 744 | |
| 745 /* Other signals are ignored by default */ | |
| 746 return 0; | |
| 747 } | |
| 748 | |
| 611 | 749 |
| 750 /*--------------------------------------------------------------------*/ | |
| 751 /* Async timers */ | |
| 752 /*--------------------------------------------------------------------*/ | |
| 753 | |
| 754 /* We emulate two timers, one for SIGALRM, another for SIGPROF. | |
| 755 | |
| 756 itimerproc() function has an implementation limitation: it does | |
| 757 not allow to set *both* interval and period. If an attempt is | |
| 758 made to set both, and then they are unequal, the function | |
| 759 asserts. | |
| 760 | |
| 761 Minimum timer resolution on Win32 systems varies, and is greater | |
| 762 than or equal than 1 ms. The resolution is always wrapped not to | |
| 763 attempt to get below the system defined limit. | |
| 764 */ | |
| 765 | |
| 766 /* Timer precision, denominator of one fraction: for 100 ms | |
| 767 interval, request 10 ms precision | |
| 768 */ | |
| 769 const int setitimer_helper_timer_prec = 10; | |
| 770 | |
| 771 /* Last itimervals, as set by calls to setitimer */ | |
| 772 static struct itimerval it_alarm; | |
| 773 static struct itimerval it_prof; | |
| 774 | |
| 775 /* Timer IDs as returned by MM */ | |
| 776 MMRESULT tid_alarm = 0; | |
| 777 MMRESULT tid_prof = 0; | |
| 778 | |
| 779 static void CALLBACK | |
| 2286 | 780 setitimer_helper_proc (UINT UNUSED (uID), UINT UNUSED (uMsg), DWORD dwUser, |
| 781 DWORD UNUSED (dw1), DWORD UNUSED (dw2)) | |
| 611 | 782 { |
| 783 /* Just raise the signal indicated by the dwUser parameter */ | |
| 784 mswindows_raise (dwUser); | |
| 785 } | |
| 786 | |
| 787 /* Divide time in ms specified by IT by DENOM. Return 1 ms | |
| 788 if division results in zero */ | |
| 789 static UINT | |
| 853 | 790 setitimer_helper_period (const struct itimerval *it, UINT denom) |
| 611 | 791 { |
| 792 static TIMECAPS time_caps; | |
| 793 | |
| 794 UINT res; | |
| 853 | 795 const struct timeval *tv = |
| 611 | 796 (it->it_value.tv_sec == 0 && it->it_value.tv_usec == 0) |
| 797 ? &it->it_interval : &it->it_value; | |
| 798 | |
| 799 /* Zero means stop timer */ | |
| 800 if (tv->tv_sec == 0 && tv->tv_usec == 0) | |
| 801 return 0; | |
| 802 | |
| 803 /* Convert to ms and divide by denom */ | |
| 804 res = (tv->tv_sec * 1000 + (tv->tv_usec + 500) / 1000) / denom; | |
| 805 | |
| 806 /* Converge to minimum timer resolution */ | |
| 807 if (time_caps.wPeriodMin == 0) | |
| 808 timeGetDevCaps (&time_caps, sizeof(time_caps)); | |
| 809 | |
| 810 if (res < time_caps.wPeriodMin) | |
| 811 res = time_caps.wPeriodMin; | |
| 812 | |
| 813 return res; | |
| 814 } | |
| 815 | |
| 816 static int | |
| 853 | 817 setitimer_helper (const struct itimerval *itnew, |
| 818 struct itimerval *itold, struct itimerval *itcurrent, | |
| 819 MMRESULT *tid, DWORD sigkind) | |
| 611 | 820 { |
| 821 UINT delay, resolution, event_type; | |
| 822 | |
| 823 /* First stop the old timer */ | |
| 824 if (*tid) | |
| 825 { | |
| 826 timeKillEvent (*tid); | |
| 827 timeEndPeriod (setitimer_helper_period (itcurrent, | |
| 828 setitimer_helper_timer_prec)); | |
| 829 *tid = 0; | |
| 830 } | |
| 831 | |
| 832 /* Return old itimerval if requested */ | |
| 833 if (itold) | |
| 834 *itold = *itcurrent; | |
| 835 | |
| 836 *itcurrent = *itnew; | |
| 837 | |
| 838 /* Determine if to start new timer */ | |
| 839 delay = setitimer_helper_period (itnew, 1); | |
| 840 if (delay) | |
| 841 { | |
| 842 resolution = setitimer_helper_period (itnew, | |
| 843 setitimer_helper_timer_prec); | |
| 844 event_type = (itnew->it_value.tv_sec == 0 && | |
| 845 itnew->it_value.tv_usec == 0) | |
| 846 ? TIME_ONESHOT : TIME_PERIODIC; | |
| 847 timeBeginPeriod (resolution); | |
| 848 *tid = timeSetEvent (delay, resolution, setitimer_helper_proc, sigkind, | |
| 849 event_type); | |
| 850 } | |
| 851 | |
| 852 return !delay || *tid; | |
| 853 } | |
| 854 | |
| 855 int | |
| 856 mswindows_setitimer (int kind, const struct itimerval *itnew, | |
| 857 struct itimerval *itold) | |
| 858 { | |
| 859 /* In this version, both interval and value are allowed | |
| 860 only if they are equal. */ | |
| 861 assert ((itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0) | |
| 862 || (itnew->it_interval.tv_sec == 0 && | |
| 863 itnew->it_interval.tv_usec == 0) | |
| 864 || (itnew->it_value.tv_sec == itnew->it_interval.tv_sec && | |
| 865 itnew->it_value.tv_usec == itnew->it_interval.tv_usec)); | |
| 866 | |
| 867 if (kind == ITIMER_REAL) | |
| 868 return setitimer_helper (itnew, itold, &it_alarm, &tid_alarm, SIGALRM); | |
| 869 else if (kind == ITIMER_PROF) | |
| 870 return setitimer_helper (itnew, itold, &it_prof, &tid_prof, SIGPROF); | |
| 871 else | |
| 872 return errno = EINVAL; | |
| 873 } | |
| 874 | |
| 613 | 875 #endif /* defined (WIN32_NATIVE) || defined (CYGWIN_BROKEN_SIGNALS) */ |
| 876 | |
| 611 | 877 |
| 442 | 878 void |
| 879 syms_of_win32 (void) | |
| 880 { | |
| 881 DEFSUBR (Fmswindows_shell_execute); | |
| 673 | 882 #ifdef CYGWIN |
| 883 DEFSUBR (Fmswindows_cygwin_to_win32_path); | |
| 884 #endif | |
| 442 | 885 } |
| 886 | |
| 887 void | |
| 771 | 888 vars_of_win32 (void) |
| 889 { | |
| 2526 | 890 DEFVAR_LISP ("mswindows-downcase-file-names", |
| 891 &Vmswindows_downcase_file_names /* | |
| 771 | 892 Non-nil means convert all-upper case file names to lower case. |
| 893 This applies when performing completions and file name expansion. | |
| 894 */ ); | |
| 895 Vmswindows_downcase_file_names = Qnil; | |
| 2526 | 896 |
| 897 DEFVAR_BOOL ("mswindows-shortcuts-are-symlinks", | |
| 898 &mswindows_shortcuts_are_symlinks /* | |
| 899 Non-nil means shortcuts (.LNK files) are treated as symbolic links. | |
| 900 This works also for symlinks created under Cygwin, because they use .LNK | |
| 901 files to implement symbolic links. | |
| 902 */ ); | |
| 903 mswindows_shortcuts_are_symlinks = 1; | |
| 771 | 904 } |
| 905 | |
| 906 void | |
| 442 | 907 init_win32 (void) |
| 908 { | |
| 909 init_potentially_nonexistent_functions (); | |
| 910 } | |
| 771 | 911 |
| 912 void | |
| 2367 | 913 init_win32_very_very_early (void) |
| 771 | 914 { |
| 915 mswindows_windows9x_p = GetVersion () & 0x80000000; | |
| 916 } |