Mercurial > hg > xemacs-beta
annotate netinstall/diskfull.cc @ 4502:8748a3f7ceb4
Handle varalias chains, custom variables in #'user-variable-p.
src/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* eval.c (Fuser_variable_p): Moved to symbols.c
* symbols.c (Fcustom_variable_p): Moved here from custom.el.
(user_variable_alias_check_fun): Mapper function used in
`user-variable-p'.
(Fuser_variable_p): Moved here from eval.c, to allow it to examine
the variable alias chain. Expanded to check each entry in the
variable alias chain for signs of being a user variable;
documentation updated, noting the differences between GNU's
behaviour and ours (ours is a little more sensible)
(map_varalias_chain): New.
Given a C function, call it at least once for each symbol in a
symbol's varalias chain, signalling an error if there's a cycle,
and returning immediately if the function returns something other
than Qzero.
(Fdefvaralias): Correct the use of the word "alias" in the
docstring and in the argument name. Motivate this in a
comment. Add support for a DOCSTRING argument, something GNU has
too, and document this
* gc.c (vars_of_gc): Start the docstring of
`garbage-collection-messages' with an asterisk, to indicate that
it's a user variable.
lisp/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* custom.el: Move #'custom-variable-p to C, since it's now called
from #'user-variable-p.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sat, 23 Aug 2008 16:38:51 +0200 |
| parents | 3078fd1074e8 |
| children |
| rev | line source |
|---|---|
| 448 | 1 /* |
| 2 * Copyright (c) 2000, Red Hat, Inc. | |
| 3 * | |
| 4 * This program is free software; you can redistribute it and/or modify | |
| 5 * it under the terms of the GNU General Public License as published by | |
| 6 * the Free Software Foundation; either version 2 of the License, or | |
| 7 * (at your option) any later version. | |
| 8 * | |
| 9 * A copy of the GNU General Public License can be found at | |
| 10 * http://www.gnu.org/ | |
| 11 * | |
| 12 * Written by DJ Delorie <dj@cygnus.com> | |
| 13 * | |
| 14 */ | |
| 15 | |
| 16 /* The purpose of this file is to hide the mess needed just to figure | |
| 17 out how full a given disk is. There is an old API that can't | |
| 18 handle disks bigger than 2G, and a new API that isn't always | |
| 19 available. */ | |
| 20 | |
| 21 #include "win32.h" | |
| 22 #include "diskfull.h" | |
| 23 | |
| 24 typedef BOOL (WINAPI * GDFS)(LPCTSTR, PULARGE_INTEGER, PULARGE_INTEGER, | |
| 25 PULARGE_INTEGER); | |
| 26 | |
| 27 int | |
| 28 diskfull (char *path) | |
| 29 { | |
| 30 GDFS gdfs = 0; | |
| 31 | |
| 32 HINSTANCE k = LoadLibrary ("KERNEL32.DLL"); | |
| 33 if (k) | |
| 34 { | |
| 35 gdfs = (GDFS) GetProcAddress (k, "GetDiskFreeSpaceExA"); | |
| 36 | |
| 37 if (gdfs) | |
| 38 { | |
| 39 ULARGE_INTEGER avail, total, free; | |
| 40 if (gdfs (path, &avail, &total, &free)) | |
| 41 { | |
| 42 int perc = avail.QuadPart * 100 / total.QuadPart; | |
| 43 return 100-perc; | |
| 44 } | |
| 45 } | |
| 46 } | |
| 47 | |
| 48 char root[4]; | |
| 49 if (path[1] != ':') | |
| 50 return 0; | |
| 51 | |
| 52 root[0] = path[0]; | |
| 53 root[1] = ':'; | |
| 54 root[2] = '\\'; | |
| 55 root[3] = 0; | |
| 56 | |
| 57 DWORD junk, free_clusters, total_clusters; | |
| 58 | |
| 59 if (GetDiskFreeSpace (root, &junk, &junk, &free_clusters, &total_clusters)) | |
| 60 { | |
| 61 int perc = free_clusters * 100 / total_clusters; | |
| 62 return 100-perc; | |
| 63 } | |
| 64 | |
| 65 return 0; | |
| 66 } |