1 ;;;; This file contains Win32 support routines that SBCL needs to
2 ;;;; implement itself, in addition to those that apply to Win32 in
3 ;;;; unix.lisp. In theory, some of these functions might someday be
4 ;;;; useful to the end user.
6 ;;;; This software is part of the SBCL system. See the README file for
9 ;;;; This software is derived from the CMU CL system, which was
10 ;;;; written at Carnegie Mellon University and released into the
11 ;;;; public domain. The software is in the public domain and is
12 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
13 ;;;; files for more information.
15 (in-package "SB!WIN32")
17 ;;; Alien definitions for commonly used Win32 types. Woe unto whoever
18 ;;; tries to untangle this someday for 64-bit Windows.
20 ;;; FIXME: There used to be many more here, which are now groveled,
21 ;;; but groveling HANDLE makes it unsigned, which currently breaks the
22 ;;; build. --NS 2006-06-18
23 (define-alien-type handle int-ptr)
25 (define-alien-type lispbool (boolean 32))
27 (define-alien-type system-string
28 #!-sb-unicode c-string
29 #!+sb-unicode (c-string :external-format :ucs-2))
31 (defconstant default-environment-length 1024)
33 ;;; HANDLEs are actually pointers, but an invalid handle is -1 cast
35 (defconstant invalid-handle -1)
39 ;;; Retrieve the calling thread's last-error code value. The
40 ;;; last-error code is maintained on a per-thread basis.
41 (define-alien-routine ("GetLastError" get-last-error) dword)
43 ;;; Flag constants for FORMAT-MESSAGE.
44 (defconstant format-message-from-system #x1000)
46 ;;; Format an error message based on a lookup table. See MSDN for the
47 ;;; full meaning of the all options---most are not used when getting
48 ;;; system error codes.
49 (define-alien-routine ("FormatMessageA" format-message) dword
60 ;;; Historically, SBCL on Windows used CRT (lowio) file descriptors,
61 ;;; unlike other Lisps. They really help to minimize required effort
62 ;;; for porting Unix-specific software, at least to the level that it
63 ;;; mostly works most of the time.
65 ;;; Alastair Bridgewater recommended to switch away from CRT
66 ;;; descriptors, and Anton Kovalenko thinks it's the time to heed his
67 ;;; advice. I see that SBCL for Windows needs much more effort in the
68 ;;; area of OS IO abstractions and the like; using or leaving lowio
69 ;;; FDs doesn't change the big picture so much.
71 ;;; Lowio layer, in exchange for `semi-automatic almost-portability',
72 ;;; brings some significant problems, which a grown-up cross-platform
73 ;;; CL implementation shouldn't have. Therefore, as its benefits
74 ;;; become negligible, it's a good reason to throw it away.
76 ;;; -- comment from AK's branch
78 ;;; For a few more releases, let's preserve old functions (now
79 ;;; implemented as identity) for user code which might have had to peek
80 ;;; into our internals in past versions when we hadn't been using
81 ;;; handles yet. -- DFL, 2012
82 (defun get-osfhandle (fd) fd)
83 (defun open-osfhandle (handle flags) (declare (ignore flags)) handle)
85 ;;; Get the operating system handle for a C file descriptor. Returns
86 ;;; INVALID-HANDLE on failure.
87 (define-alien-routine ("_get_osfhandle" real-get-osfhandle) handle
90 (define-alien-routine ("_close" real-crt-close) int
93 ;;; Read data from a file handle into a buffer. This may be used
94 ;;; synchronously or with "overlapped" (asynchronous) I/O.
95 (define-alien-routine ("ReadFile" read-file) bool
99 (bytes-read (* dword))
102 ;;; Write data from a buffer to a file handle. This may be used
103 ;;; synchronously or with "overlapped" (asynchronous) I/O.
104 (define-alien-routine ("WriteFile" write-file) bool
107 (bytes-to-write dword)
108 (bytes-written (* dword))
111 ;;; Copy data from a named or anonymous pipe into a buffer without
112 ;;; removing it from the pipe. BUFFER, BYTES-READ, BYTES-AVAIL, and
113 ;;; BYTES-LEFT-THIS-MESSAGE may be NULL if no data is to be read.
114 ;;; Return TRUE on success, FALSE on failure.
115 (define-alien-routine ("PeekNamedPipe" peek-named-pipe) bool
119 (bytes-read (* dword))
120 (bytes-avail (* dword))
121 (bytes-left-this-message (* dword)))
123 ;;; Flush the console input buffer if HANDLE is a console handle.
124 ;;; Returns true on success, false if the handle does not refer to a
126 (define-alien-routine ("FlushConsoleInputBuffer" flush-console-input-buffer) bool
129 ;;; Read data from the console input buffer without removing it,
130 ;;; without blocking. Buffer should be large enough for LENGTH *
131 ;;; INPUT-RECORD-SIZE bytes.
132 (define-alien-routine ("PeekConsoleInputA" peek-console-input) bool
138 (define-alien-routine ("socket_input_available" socket-input-available) int
141 ;;; Listen for input on a Windows file handle. Unlike UNIX, there
142 ;;; isn't a unified interface to do this---we have to know what sort
143 ;;; of handle we have. Of course, there's no way to actually
144 ;;; introspect it, so we have to try various things until we find
145 ;;; something that works. Returns true if there could be input
146 ;;; available, or false if there is not.
147 (defun handle-listen (handle)
148 (with-alien ((avail dword)
149 (buf (array char #.input-record-size)))
151 ;; Make use of the fact that console handles are technically no
152 ;; real handles, and unlike those, have these bits set:
153 (= 3 (logand 3 handle))
154 (return-from handle-listen
155 (alien-funcall (extern-alien "win32_tty_listen"
156 (function boolean handle))
158 (unless (zerop (peek-named-pipe handle nil 0 nil (addr avail) nil))
159 (return-from handle-listen (plusp avail)))
160 (let ((res (socket-input-available handle)))
162 (return-from handle-listen (= res 1))))
165 ;;; Listen for input on a C runtime file handle. Returns true if
166 ;;; there could be input available, or false if there is not.
167 (defun fd-listen (fd)
168 (let ((handle (get-osfhandle fd)))
170 (handle-listen handle)
173 ;;; Clear all available input from a file handle.
174 (defun handle-clear-input (handle)
175 (flush-console-input-buffer handle)
176 (with-alien ((buf (array char 1024))
179 (unless (handle-listen handle)
181 (when (zerop (read-file handle (cast buf (* t)) 1024 (addr count) nil))
186 ;;; Clear all available input from a C runtime file handle.
187 (defun fd-clear-input (fd)
188 (let ((handle (get-osfhandle fd)))
190 (handle-clear-input handle))))
192 ;;;; System Functions
195 (define-alien-routine ("Sleep" millisleep) void
196 (milliseconds dword))
199 (defun sb!unix:nanosleep (sec nsec)
200 (let ((*allow-with-interrupts* *interrupts-enabled*))
202 (let ((timer (sb!impl::os-create-wtimer)))
203 (sb!impl::os-set-wtimer timer sec nsec)
205 (do () ((with-local-interrupts
206 (zerop (sb!impl::os-wait-for-wtimer timer)))))
207 (sb!impl::os-close-wtimer timer))))))
209 (define-alien-routine ("win32_wait_object_or_signal" wait-object-or-signal)
215 (defvar *ansi-codepage* nil)
216 (defvar *oem-codepage* nil)
217 (defvar *codepage-to-external-format* (make-hash-table)))
221 (cp '(;;037 IBM EBCDIC - U.S./Canada
222 (437 :CP437) ;; OEM - United States
223 ;;500 IBM EBCDIC - International
224 ;;708 Arabic - ASMO 708
225 ;;709 Arabic - ASMO 449+, BCON V4
226 ;;710 Arabic - Transparent Arabic
227 ;;720 Arabic - Transparent ASMO
228 ;;737 OEM - Greek (formerly 437G)
230 (850 :CP850) ;; OEM - Multilingual Latin I
231 (852 :CP852) ;; OEM - Latin II
232 (855 :CP855) ;; OEM - Cyrillic (primarily Russian)
233 (857 :CP857) ;; OEM - Turkish
234 ;;858 OEM - Multilingual Latin I + Euro symbol
235 (860 :CP860) ;; OEM - Portuguese
236 (861 :CP861) ;; OEM - Icelandic
237 (862 :CP862) ;; OEM - Hebrew
238 (863 :CP863) ;; OEM - Canadian-French
239 (864 :CP864) ;; OEM - Arabic
240 (865 :CP865) ;; OEM - Nordic
241 (866 :CP866) ;; OEM - Russian
242 (869 :CP869) ;; OEM - Modern Greek
243 ;;870 IBM EBCDIC - Multilingual/ROECE (Latin-2)
244 (874 :CP874) ;; ANSI/OEM - Thai (same as 28605, ISO 8859-15)
245 ;;875 IBM EBCDIC - Modern Greek
246 (932 :CP932) ;; ANSI/OEM - Japanese, Shift-JIS
247 ;;936 ANSI/OEM - Simplified Chinese (PRC, Singapore)
248 ;;949 ANSI/OEM - Korean (Unified Hangul Code)
249 ;;950 ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC)
250 ;;1026 IBM EBCDIC - Turkish (Latin-5)
251 ;;1047 IBM EBCDIC - Latin 1/Open System
252 ;;1140 IBM EBCDIC - U.S./Canada (037 + Euro symbol)
253 ;;1141 IBM EBCDIC - Germany (20273 + Euro symbol)
254 ;;1142 IBM EBCDIC - Denmark/Norway (20277 + Euro symbol)
255 ;;1143 IBM EBCDIC - Finland/Sweden (20278 + Euro symbol)
256 ;;1144 IBM EBCDIC - Italy (20280 + Euro symbol)
257 ;;1145 IBM EBCDIC - Latin America/Spain (20284 + Euro symbol)
258 ;;1146 IBM EBCDIC - United Kingdom (20285 + Euro symbol)
259 ;;1147 IBM EBCDIC - France (20297 + Euro symbol)
260 ;;1148 IBM EBCDIC - International (500 + Euro symbol)
261 ;;1149 IBM EBCDIC - Icelandic (20871 + Euro symbol)
262 (1200 :UCS-2LE) ;; Unicode UCS-2 Little-Endian (BMP of ISO 10646)
263 (1201 :UCS-2BE) ;; Unicode UCS-2 Big-Endian
264 (1250 :CP1250) ;; ANSI - Central European
265 (1251 :CP1251) ;; ANSI - Cyrillic
266 (1252 :CP1252) ;; ANSI - Latin I
267 (1253 :CP1253) ;; ANSI - Greek
268 (1254 :CP1254) ;; ANSI - Turkish
269 (1255 :CP1255) ;; ANSI - Hebrew
270 (1256 :CP1256) ;; ANSI - Arabic
271 (1257 :CP1257) ;; ANSI - Baltic
272 (1258 :CP1258) ;; ANSI/OEM - Vietnamese
273 ;;1361 Korean (Johab)
275 ;;10001 MAC - Japanese
276 ;;10002 MAC - Traditional Chinese (Big5)
280 ;;10006 MAC - Greek I
281 (10007 :X-MAC-CYRILLIC) ;; MAC - Cyrillic
282 ;;10008 MAC - Simplified Chinese (GB 2312)
283 ;;10010 MAC - Romania
284 ;;10017 MAC - Ukraine
286 ;;10029 MAC - Latin II
287 ;;10079 MAC - Icelandic
288 ;;10081 MAC - Turkish
289 ;;10082 MAC - Croatia
290 ;;12000 Unicode UCS-4 Little-Endian
291 ;;12001 Unicode UCS-4 Big-Endian
294 ;;20002 Eten - Taiwan
295 ;;20003 IBM5550 - Taiwan
296 ;;20004 TeleText - Taiwan
297 ;;20005 Wang - Taiwan
298 ;;20105 IA5 IRV International Alphabet No. 5 (7-bit)
299 ;;20106 IA5 German (7-bit)
300 ;;20107 IA5 Swedish (7-bit)
301 ;;20108 IA5 Norwegian (7-bit)
302 ;;20127 US-ASCII (7-bit)
304 ;;20269 ISO 6937 Non-Spacing Accent
305 ;;20273 IBM EBCDIC - Germany
306 ;;20277 IBM EBCDIC - Denmark/Norway
307 ;;20278 IBM EBCDIC - Finland/Sweden
308 ;;20280 IBM EBCDIC - Italy
309 ;;20284 IBM EBCDIC - Latin America/Spain
310 ;;20285 IBM EBCDIC - United Kingdom
311 ;;20290 IBM EBCDIC - Japanese Katakana Extended
312 ;;20297 IBM EBCDIC - France
313 ;;20420 IBM EBCDIC - Arabic
314 ;;20423 IBM EBCDIC - Greek
315 ;;20424 IBM EBCDIC - Hebrew
316 ;;20833 IBM EBCDIC - Korean Extended
317 ;;20838 IBM EBCDIC - Thai
318 (20866 :KOI8-R) ;; Russian - KOI8-R
319 ;;20871 IBM EBCDIC - Icelandic
320 ;;20880 IBM EBCDIC - Cyrillic (Russian)
321 ;;20905 IBM EBCDIC - Turkish
322 ;;20924 IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol)
323 ;;20932 JIS X 0208-1990 & 0121-1990
324 ;;20936 Simplified Chinese (GB2312)
325 ;;21025 IBM EBCDIC - Cyrillic (Serbian, Bulgarian)
327 (21866 :KOI8-U) ;; Ukrainian (KOI8-U)
328 (28591 :LATIN-1) ;; ISO 8859-1 Latin I
329 (28592 :ISO-8859-2) ;; ISO 8859-2 Central Europe
330 (28593 :ISO-8859-3) ;; ISO 8859-3 Latin 3
331 (28594 :ISO-8859-4) ;; ISO 8859-4 Baltic
332 (28595 :ISO-8859-5) ;; ISO 8859-5 Cyrillic
333 (28596 :ISO-8859-6) ;; ISO 8859-6 Arabic
334 (28597 :ISO-8859-7) ;; ISO 8859-7 Greek
335 (28598 :ISO-8859-8) ;; ISO 8859-8 Hebrew
336 (28599 :ISO-8859-9) ;; ISO 8859-9 Latin 5
337 (28605 :LATIN-9) ;; ISO 8859-15 Latin 9
339 (38598 :ISO-8859-8) ;; ISO 8859-8 Hebrew
340 ;;50220 ISO 2022 Japanese with no halfwidth Katakana
341 ;;50221 ISO 2022 Japanese with halfwidth Katakana
342 ;;50222 ISO 2022 Japanese JIS X 0201-1989
343 ;;50225 ISO 2022 Korean
344 ;;50227 ISO 2022 Simplified Chinese
345 ;;50229 ISO 2022 Traditional Chinese
346 ;;50930 Japanese (Katakana) Extended
347 ;;50931 US/Canada and Japanese
348 ;;50933 Korean Extended and Korean
349 ;;50935 Simplified Chinese Extended and Simplified Chinese
350 ;;50936 Simplified Chinese
351 ;;50937 US/Canada and Traditional Chinese
352 ;;50939 Japanese (Latin) Extended and Japanese
353 (51932 :EUC-JP) ;; EUC - Japanese
354 ;;51936 EUC - Simplified Chinese
356 ;;51950 EUC - Traditional Chinese
357 ;;52936 HZ-GB2312 Simplified Chinese
358 ;;54936 Windows XP: GB18030 Simplified Chinese (4 Byte)
359 ;;57002 ISCII Devanagari
360 ;;57003 ISCII Bengali
363 ;;57006 ISCII Assamese
365 ;;57008 ISCII Kannada
366 ;;57009 ISCII Malayalam
367 ;;57010 ISCII Gujarati
368 ;;57011 ISCII Punjabi
369 ;;65000 Unicode UTF-7
370 (65001 :UTF8))) ;; Unicode UTF-8
371 (setf (gethash (car cp) *codepage-to-external-format*) (cadr cp)))
374 ;; FIXME: Something odd here: why are these two #+SB-UNICODE, whereas
375 ;; the console just behave differently?
377 (declaim (ftype (function () keyword) ansi-codepage))
378 (defun ansi-codepage ()
380 (setq *ansi-codepage*
381 (gethash (alien-funcall (extern-alien "GetACP" (function UINT)))
382 *codepage-to-external-format*
385 (declaim (ftype (function () keyword) oem-codepage))
386 (defun oem-codepage ()
389 (gethash (alien-funcall (extern-alien "GetOEMCP" (function UINT)))
390 *codepage-to-external-format*
393 ;; http://msdn.microsoft.com/library/en-us/dllproc/base/getconsolecp.asp
394 (declaim (ftype (function () keyword) console-input-codepage))
395 (defun console-input-codepage ()
397 (gethash (alien-funcall (extern-alien "GetConsoleCP" (function UINT)))
398 *codepage-to-external-format*)
401 ;; http://msdn.microsoft.com/library/en-us/dllproc/base/getconsoleoutputcp.asp
402 (declaim (ftype (function () keyword) console-output-codepage))
403 (defun console-output-codepage ()
405 (gethash (alien-funcall
406 (extern-alien "GetConsoleOutputCP" (function UINT)))
407 *codepage-to-external-format*)
410 (define-alien-routine ("LocalFree" local-free) void
413 (defmacro cast-and-free (value &key (type 'system-string)
414 (free-function 'free-alien))
415 `(prog1 (cast ,value ,type)
416 (,free-function ,value)))
418 (eval-when (:compile-toplevel :load-toplevel :execute)
419 (defmacro with-funcname ((name description) &body body)
421 ((,name (etypecase ,description
422 (string ,description)
423 (cons (destructuring-bind (s &optional c) ,description
425 (if c #!-sb-unicode "A" #!+sb-unicode "W" "")))))))
428 (defmacro make-system-buffer (x)
429 `(make-alien char #!+sb-unicode (ash ,x 1) #!-sb-unicode ,x))
431 (define-alien-type pathname-buffer
432 (array char #.(ash (1+ max_path) #!+sb-unicode 1 #!-sb-unicode 0)))
434 (define-alien-type long-pathname-buffer
435 #!+sb-unicode (array char 65536)
436 #!-sb-unicode pathname-buffer)
438 ;;; FIXME: The various FOO-SYSCALL-BAR macros, and perhaps some other
439 ;;; macros in this file, are only used in this file, and could be
440 ;;; implemented using SB!XC:DEFMACRO wrapped in EVAL-WHEN.
442 (defmacro syscall ((name ret-type &rest arg-types) success-form &rest args)
443 (with-funcname (sname name)
445 (declare (optimize (sb!c::float-accuracy 0)))
446 (let ((result (alien-funcall
448 (function ,ret-type ,@arg-types))
450 (declare (ignorable result))
453 ;;; This is like SYSCALL, but if it fails, signal an error instead of
454 ;;; returning error codes. Should only be used for syscalls that will
455 ;;; never really get an error.
456 (defmacro syscall* ((name &rest arg-types) success-form &rest args)
457 (with-funcname (sname name)
459 (declare (optimize (sb!c::float-accuracy 0)))
460 (let ((result (alien-funcall
461 (extern-alien ,sname (function bool ,@arg-types))
464 (win32-error ,sname))
467 (defmacro with-sysfun ((func name ret-type &rest arg-types) &body body)
468 (with-funcname (sname name)
469 `(with-alien ((,func (function ,ret-type ,@arg-types)
473 (defmacro void-syscall* ((name &rest arg-types) &rest args)
474 `(syscall* (,name ,@arg-types) (values t 0) ,@args))
476 (defun get-last-error-message (err)
477 "http://msdn.microsoft.com/library/default.asp?url=/library/en-us/debug/base/retrieving_the_last_error_code.asp"
478 (with-alien ((amsg (* char)))
479 (syscall (("FormatMessage" t)
480 dword dword dword dword dword (* (* char)) dword dword)
481 (cast-and-free amsg :free-function local-free)
482 (logior FORMAT_MESSAGE_ALLOCATE_BUFFER FORMAT_MESSAGE_FROM_SYSTEM)
483 0 err 0 (addr amsg) 0 0)))
485 (defmacro win32-error (func-name &optional err)
486 `(let ((err-code ,(or err `(get-last-error))))
487 (declare (type (unsigned-byte 32) err-code))
488 (error "~%Win32 Error [~A] - ~A~%~A"
491 (get-last-error-message err-code))))
493 (defun get-folder-namestring (csidl)
494 "http://msdn.microsoft.com/library/en-us/shellcc/platform/shell/reference/functions/shgetfolderpath.asp"
495 (with-alien ((apath (* char) (make-system-buffer (1+ max_path))))
496 (syscall (("SHGetFolderPath" t) int handle int handle dword (* char))
497 (concatenate 'string (cast-and-free apath) "\\")
500 (defun get-folder-pathname (csidl)
501 (parse-native-namestring (get-folder-namestring csidl)))
503 (defun sb!unix:posix-getcwd ()
504 (with-alien ((apath (* char) (make-system-buffer (1+ max_path))))
505 (with-sysfun (afunc ("GetCurrentDirectory" t) dword dword (* char))
506 (let ((ret (alien-funcall afunc (1+ max_path) apath)))
508 (win32-error "GetCurrentDirectory"))
509 (when (> ret (1+ max_path))
511 (setf apath (make-system-buffer ret))
512 (alien-funcall afunc ret apath))
513 (cast-and-free apath)))))
515 (defun sb!unix:unix-mkdir (name mode)
516 (declare (type sb!unix:unix-pathname name)
517 (type sb!unix:unix-file-mode mode)
519 (void-syscall* (("CreateDirectory" t) system-string dword) name 0))
521 (defun sb!unix:unix-rename (name1 name2)
522 (declare (type sb!unix:unix-pathname name1 name2))
523 (void-syscall* (("MoveFile" t) system-string system-string) name1 name2))
525 (defun sb!unix::posix-getenv (name)
526 (declare (type simple-string name))
527 (with-alien ((aenv (* char) (make-system-buffer default-environment-length)))
528 (with-sysfun (afunc ("GetEnvironmentVariable" t)
529 dword system-string (* char) dword)
530 (let ((ret (alien-funcall afunc name aenv default-environment-length)))
531 (when (> ret default-environment-length)
533 (setf aenv (make-system-buffer ret))
534 (alien-funcall afunc name aenv ret))
537 (free-alien aenv))))))
539 ;; GET-CURRENT-PROCESS
540 ;; The GetCurrentProcess function retrieves a pseudo handle for the current
543 ;; http://msdn.microsoft.com/library/en-us/dllproc/base/getcurrentprocess.asp
544 (declaim (inline get-current-process))
545 (define-alien-routine ("GetCurrentProcess" get-current-process) handle)
547 ;;;; Process time information
549 (defconstant 100ns-per-internal-time-unit
550 (/ 10000000 sb!xc:internal-time-units-per-second))
553 ;; The FILETIME structure is a 64-bit value representing the number of
554 ;; 100-nanosecond intervals since January 1, 1601 (UTC).
556 ;; http://msdn.microsoft.com/library/en-us/sysinfo/base/filetime_str.asp?
557 (define-alien-type FILETIME (sb!alien:unsigned 64))
559 (defmacro with-process-times ((creation-time exit-time kernel-time user-time)
561 `(with-alien ((,creation-time filetime)
562 (,exit-time filetime)
563 (,kernel-time filetime)
564 (,user-time filetime))
565 (syscall* (("GetProcessTimes") handle (* filetime) (* filetime)
566 (* filetime) (* filetime))
568 (get-current-process)
569 (addr ,creation-time)
574 (declaim (inline system-internal-real-time))
577 (declare (unsigned-byte epoch))
578 ;; FIXME: For optimization ideas see the unix implementation.
579 (defun reinit-internal-real-time ()
581 epoch (get-internal-real-time)))
582 (defun get-internal-real-time ()
583 (- (with-alien ((system-time filetime))
584 (syscall (("GetSystemTimeAsFileTime") void (* filetime))
585 (values (floor system-time 100ns-per-internal-time-unit))
589 (defun system-internal-run-time ()
590 (with-process-times (creation-time exit-time kernel-time user-time)
591 (values (floor (+ user-time kernel-time) 100ns-per-internal-time-unit))))
593 (define-alien-type hword (unsigned 16))
595 (define-alien-type systemtime
604 (millisecond hword)))
606 ;; Obtained with, but the XC can't deal with that -- but
607 ;; it's not like the value is ever going to change...
608 ;; (with-alien ((filetime filetime)
609 ;; (epoch systemtime))
610 ;; (setf (slot epoch 'year) 1970
611 ;; (slot epoch 'month) 1
612 ;; (slot epoch 'day) 1
613 ;; (slot epoch 'hour) 0
614 ;; (slot epoch 'minute) 0
615 ;; (slot epoch 'second) 0
616 ;; (slot epoch 'millisecond) 0)
617 ;; (syscall (("SystemTimeToFileTime" 8) void
618 ;; (* systemtime) (* filetime))
622 (defconstant +unix-epoch-filetime+ 116444736000000000)
625 (declaim (inline get-time-of-day))
626 (defun get-time-of-day ()
627 "Return the number of seconds and microseconds since the beginning of the
628 UNIX epoch: January 1st 1970."
629 (with-alien ((system-time filetime))
630 (syscall (("GetSystemTimeAsFileTime") void (* filetime))
631 (multiple-value-bind (sec 100ns)
632 (floor (- system-time +unix-epoch-filetime+)
633 (* 100ns-per-internal-time-unit
634 internal-time-units-per-second))
635 (values sec (floor 100ns 10)))
636 (addr system-time))))
639 ;; The SetEnvironmentVariable function sets the contents of the specified
640 ;; environment variable for the current process.
642 ;; http://msdn.microsoft.com/library/en-us/dllproc/base/setenvironmentvariable.asp
643 (defun setenv (name value)
644 (declare (type simple-string name value))
645 (void-syscall* (("SetEnvironmentVariable" t) system-string system-string)
648 (defmacro c-sizeof (s)
649 "translate alien size (in bits) to c-size (in bytes)"
650 `(/ (alien-size ,s) 8))
653 ;; The OSVERSIONINFO data structure contains operating system version
654 ;; information. The information includes major and minor version numbers,
655 ;; a build number, a platform identifier, and descriptive text about
656 ;; the operating system. This structure is used with the GetVersionEx function.
658 ;; http://msdn.microsoft.com/library/en-us/sysinfo/base/osversioninfo_str.asp
659 (define-alien-type nil
660 (struct OSVERSIONINFO
661 (dwOSVersionInfoSize dword)
662 (dwMajorVersion dword)
663 (dwMinorVersion dword)
664 (dwBuildNumber dword)
666 (szCSDVersion (array char #!-sb-unicode 128 #!+sb-unicode 256))))
668 (defun get-version-ex ()
669 (with-alien ((info (struct OSVERSIONINFO)))
670 (setf (slot info 'dwOSVersionInfoSize) (c-sizeof (struct OSVERSIONINFO)))
671 (syscall* (("GetVersionEx" t) (* (struct OSVERSIONINFO)))
672 (values (slot info 'dwMajorVersion)
673 (slot info 'dwMinorVersion)
674 (slot info 'dwBuildNumber)
675 (slot info 'dwPlatformId)
676 (cast (slot info 'szCSDVersion) system-string))
680 ;; The GetComputerName function retrieves the NetBIOS name of the local
681 ;; computer. This name is established at system startup, when the system
682 ;; reads it from the registry.
684 ;; http://msdn.microsoft.com/library/en-us/sysinfo/base/getcomputername.asp
685 (declaim (ftype (function () simple-string) get-computer-name))
686 (defun get-computer-name ()
687 (with-alien ((aname (* char) (make-system-buffer (1+ MAX_COMPUTERNAME_LENGTH)))
688 (length dword (1+ MAX_COMPUTERNAME_LENGTH)))
689 (with-sysfun (afunc ("GetComputerName" t) bool (* char) (* dword))
690 (when (zerop (alien-funcall afunc aname (addr length)))
691 (let ((err (get-last-error)))
692 (unless (= err ERROR_BUFFER_OVERFLOW)
693 (win32-error "GetComputerName" err))
695 (setf aname (make-system-buffer length))
696 (alien-funcall afunc aname (addr length))))
697 (cast-and-free aname))))
699 (define-alien-routine ("SetFilePointerEx" set-file-pointer-ex) lispbool
702 (new-position long-long :out)
705 (defun lseeki64 (handle offset whence)
706 (multiple-value-bind (moved to-place)
707 (set-file-pointer-ex handle offset whence)
710 (values -1 (- (get-last-error))))))
712 ;; File mapping support routines
713 (define-alien-routine (#!+sb-unicode "CreateFileMappingW"
714 #!-sb-unicode "CreateFileMappingA"
718 (security-attributes (* t))
720 (maximum-size-high dword)
721 (maximum-size-low dword)
722 (name (c-string #!+sb-unicode #!+sb-unicode :external-format :ucs-2)))
724 (define-alien-routine ("MapViewOfFile" map-view-of-file)
726 (file-mapping handle)
727 (desired-access dword)
732 (define-alien-routine ("UnmapViewOfFile" unmap-view-of-file) bool
735 (define-alien-routine ("FlushViewOfFile" flush-view-of-file) bool
739 ;; Constants for CreateFile `disposition'.
740 (defconstant file-create-new 1)
741 (defconstant file-create-always 2)
742 (defconstant file-open-existing 3)
743 (defconstant file-open-always 4)
744 (defconstant file-truncate-existing 5)
747 (defconstant access-generic-read #x80000000)
748 (defconstant access-generic-write #x40000000)
749 (defconstant access-generic-execute #x20000000)
750 (defconstant access-generic-all #x10000000)
751 (defconstant access-file-append-data #x4)
754 (defconstant file-share-delete #x04)
755 (defconstant file-share-read #x01)
756 (defconstant file-share-write #x02)
758 ;; CreateFile (the real file-opening workhorse)
759 (define-alien-routine (#!+sb-unicode "CreateFileW"
760 #!-sb-unicode "CreateFileA"
763 (name (c-string #!+sb-unicode #!+sb-unicode :external-format :ucs-2))
764 (desired-access dword)
766 (security-attributes (* t))
767 (creation-disposition dword)
768 (flags-and-attributes dword)
769 (template-file handle))
771 (defconstant file-attribute-readonly #x1)
772 (defconstant file-attribute-hidden #x2)
773 (defconstant file-attribute-system #x4)
774 (defconstant file-attribute-directory #x10)
775 (defconstant file-attribute-archive #x20)
776 (defconstant file-attribute-device #x40)
777 (defconstant file-attribute-normal #x80)
778 (defconstant file-attribute-temporary #x100)
779 (defconstant file-attribute-sparse #x200)
780 (defconstant file-attribute-reparse-point #x400)
781 (defconstant file-attribute-reparse-compressed #x800)
782 (defconstant file-attribute-reparse-offline #x1000)
783 (defconstant file-attribute-not-content-indexed #x2000)
784 (defconstant file-attribute-encrypted #x4000)
786 (defconstant file-flag-overlapped #x40000000)
787 (defconstant file-flag-sequential-scan #x8000000)
789 ;; Possible results of GetFileType.
790 (defconstant file-type-disk 1)
791 (defconstant file-type-char 2)
792 (defconstant file-type-pipe 3)
793 (defconstant file-type-remote 4)
794 (defconstant file-type-unknown 0)
796 (defconstant invalid-file-attributes (mod -1 (ash 1 32)))
798 ;;;; File Type Introspection by handle
799 (define-alien-routine ("GetFileType" get-file-type) dword
802 ;; GetFileAttribute is like a tiny subset of fstat(),
803 ;; enough to distinguish directories from anything else.
804 (define-alien-routine (#!+sb-unicode "GetFileAttributesW"
805 #!-sb-unicode "GetFileAttributesA"
808 (name (c-string #!+sb-unicode #!+sb-unicode :external-format :ucs-2)))
810 (define-alien-routine ("CloseHandle" close-handle) bool
813 (define-alien-routine ("_open_osfhandle" real-open-osfhandle)
818 ;; Intended to be an imitation of sb!unix:unix-open based on
819 ;; CreateFile, as complete as possibly.
820 ;; FILE_FLAG_OVERLAPPED is a must for decent I/O.
822 (defun unixlike-open (path flags mode &optional revertable)
823 (declare (type sb!unix:unix-pathname path)
825 (type sb!unix:unix-file-mode mode)
827 (let* ((disposition-flags
829 (if (zerop (logand sb!unix:o_creat flags)) 0 #b100)
830 (if (zerop (logand sb!unix:o_excl flags)) 0 #b010)
831 (if (zerop (logand sb!unix:o_trunc flags)) 0 #b001)))
833 ;; there are 8 combinations of creat|excl|trunc, some of
834 ;; them are equivalent. Case stmt below maps them to 5
835 ;; dispositions (see CreateFile manual).
836 (case disposition-flags
837 ((#b110 #b111) file-create-new)
838 ((#b001 #b011) file-truncate-existing)
839 ((#b000 #b010) file-open-existing)
840 (#b100 file-open-always)
841 (#b101 file-create-always))))
845 (if revertable #x10000 0)
846 (if (plusp (logand sb!unix:o_append flags))
847 access-file-append-data
849 (ecase (logand 3 flags)
850 (0 FILE_GENERIC_READ)
851 (1 FILE_GENERIC_WRITE)
852 ((2 3) (logior FILE_GENERIC_READ
853 FILE_GENERIC_WRITE))))
854 (logior FILE_SHARE_READ
859 file-attribute-normal
861 file-flag-sequential-scan)
863 (if (eql handle invalid-handle)
865 (let ((error-code (get-last-error)))
867 (#.error_file_not_found
869 ((#.error_already_exists #.error_file_exists)
871 (otherwise (- error-code)))))
873 ;; FIXME: seeking to the end is not enough for real APPEND
874 ;; semantics, but it's better than nothing.
877 ;; On the other hand, the CL spec implies the "better than
878 ;; nothing" seek-once semantics implemented here, and our
879 ;; POSIX backend is incorrect in implementing :APPEND as
880 ;; O_APPEND. Other CL implementations get this right across
883 ;; Of course, it would be nice if we had :IF-EXISTS
884 ;; :ATOMICALLY-APPEND separately as an extension, and in
885 ;; that case, we will have to worry about supporting it
888 ;; I've tested this only very briefly (on XP and Windows 7),
889 ;; but my impression is that WriteFile (without documenting
890 ;; it?) is like ZwWriteFile, i.e. if we pass in -1 as the
891 ;; offset in our overlapped structure, WriteFile seeks to the
892 ;; end for us. Should we depend on that? How do we communicate
893 ;; our desire to do so to the runtime?
896 (set-file-pointer-ex handle 0 (if (plusp (logand sb!unix::o_append flags)) 2 0))
897 (values handle 0))))))
899 (define-alien-routine ("closesocket" close-socket) int (handle handle))
900 (define-alien-routine ("shutdown" shutdown-socket) int (handle handle)
903 (define-alien-routine ("DuplicateHandle" duplicate-handle) lispbool
904 (from-process handle)
907 (to-handle handle :out)
912 (defconstant +handle-flag-inherit+ 1)
913 (defconstant +handle-flag-protect-from-close+ 2)
915 (define-alien-routine ("SetHandleInformation" set-handle-information) lispbool
920 (define-alien-routine ("GetHandleInformation" get-handle-information) lispbool
924 (define-alien-routine getsockopt int
928 (dataword int-ptr :in-out)
929 (socklen int :in-out))
931 (defconstant sol_socket #xFFFF)
932 (defconstant so_type #x1008)
934 (defun socket-handle-p (handle)
935 (zerop (getsockopt handle sol_socket so_type 0 (alien-size int :bytes))))
937 (defconstant ebadf 9)
939 ;;; For sockets, CloseHandle first and closesocket() afterwards is
940 ;;; legal: winsock tracks its handles separately (that's why we have
941 ;;; the problem with simple _close in the first place).
943 ;;; ...Seems to be the problem on some OSes, though. We could
944 ;;; duplicate a handle and attempt close-socket on a duplicated one,
945 ;;; but it also have some problems...
947 (defun unixlike-close (fd)
948 (if (or (zerop (close-socket fd))
950 t (values nil ebadf)))
952 (defconstant +std-input-handle+ -10)
953 (defconstant +std-output-handle+ -11)
954 (defconstant +std-error-handle+ -12)
956 (defun get-std-handle-or-null (identity)
957 (let ((handle (alien-funcall
958 (extern-alien "GetStdHandle" (function handle dword))
959 (logand (1- (ash 1 (alien-size dword))) identity))))
960 (and (/= handle invalid-handle)
964 (defun get-std-handles ()
965 (values (get-std-handle-or-null +std-input-handle+)
966 (get-std-handle-or-null +std-output-handle+)
967 (get-std-handle-or-null +std-error-handle+)))
969 (defconstant +duplicate-same-access+ 2)
971 (defun duplicate-and-unwrap-fd (fd &key inheritp)
972 (let ((me (get-current-process)))
973 (multiple-value-bind (duplicated handle)
974 (duplicate-handle me (real-get-osfhandle fd)
975 me 0 inheritp +duplicate-same-access+)
977 (prog1 handle (real-crt-close fd))
978 (win32-error 'duplicate-and-unwrap-fd)))))
980 (define-alien-routine ("CreatePipe" create-pipe) lispbool
981 (read-pipe handle :out)
982 (write-pipe handle :out)
983 (security-attributes (* t))
986 (defun windows-pipe ()
987 (multiple-value-bind (created read-handle write-handle)
988 (create-pipe nil 256)
989 (if created (values read-handle write-handle)
990 (win32-error 'create-pipe))))
992 (defun windows-isatty (handle)
993 (if (= file-type-char (get-file-type handle))
996 (defun inheritable-handle-p (handle)
997 (multiple-value-bind (got flags)
998 (get-handle-information handle)
999 (if got (plusp (logand flags +handle-flag-inherit+))
1000 (win32-error 'inheritable-handle-p))))
1002 (defun (setf inheritable-handle-p) (allow handle)
1003 (if (set-handle-information handle
1004 +handle-flag-inherit+
1005 (if allow +handle-flag-inherit+ 0))
1007 (win32-error '(setf inheritable-handle-p))))
1009 (defun sb!unix:unix-dup (fd)
1010 (let ((me (get-current-process)))
1011 (multiple-value-bind (duplicated handle)
1012 (duplicate-handle me fd me 0 t +duplicate-same-access+)
1015 (values nil (- (get-last-error)))))))
1017 (defun call-with-crt-fd (thunk handle &optional (flags 0))
1018 (multiple-value-bind (duplicate errno)
1019 (sb!unix:unix-dup handle)
1021 (let ((fd (real-open-osfhandle duplicate flags)))
1022 (unwind-protect (funcall thunk fd)
1023 (real-crt-close fd)))
1024 (values nil errno))))