94 lines
3.3 KiB
Plaintext
94 lines
3.3 KiB
Plaintext
This is a partial port of the Unix system interface to Win32.
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It was done as a summer project by Pascal Cuoq (ENS Lyon),
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supervised by Xavier Leroy and Francois Rouaix (INRIA).
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See the interface file unix.mli in this directory for more
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documentation on the functions implemented.
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Recompiling this library requires Microsoft Visual C++ 4.0.
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We've had to modify and recompile the Visual C++ standard C library to
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work around the following problems:
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- There's a bug in the library function _pipe() that can result in a
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deadlock (the library function attempts to lock the wrong file descriptor).
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- Windows 95 classifies socket handles as "unknown", while Windows NT
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classifies them as "pipes". Thus, opening a file descriptor on a
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socket handle fails under Windows 95. We've just removed the check
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on the handle type in the library.
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The diffs are included at the end of this file. They must be applied
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against a local copy of the libc sources found on the Visual C++ CD-ROM
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(in \msdev\crt\src). Then, rebuild the libraries and install them.
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-----------------------------------------------------------------------
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diff -c -r d:/msdev/crt/src/osfinfo.c crt/src/osfinfo.c
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*** d:/msdev/crt/src/osfinfo.c Fri Jul 21 17:05:06 1995
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--- crt/src/osfinfo.c Mon Jul 22 15:56:40 1996
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***************
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*** 23,28 ****
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--- 23,29 ----
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#include <stdlib.h>
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#include <dbgint.h>
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+ #include <winsock.h>
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/***
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*int _alloc_osfhnd() - get free _ioinfo struct
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***************
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*** 141,150 ****
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* The first element of the newly allocated array of ioinfo
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* structs, *(__pioinfo[i]), is our first free entry.
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*/
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#if defined (_MT) && !defined (DLL_FOR_WIN32S)
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! _lock_fhandle( i );
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#endif /* defined (_MT) && !defined (DLL_FOR_WIN32S) */
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- fh = i * IOINFO_ARRAY_ELTS;
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}
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break;
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--- 142,151 ----
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* The first element of the newly allocated array of ioinfo
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* structs, *(__pioinfo[i]), is our first free entry.
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*/
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+ fh = i * IOINFO_ARRAY_ELTS;
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#if defined (_MT) && !defined (DLL_FOR_WIN32S)
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! _lock_fhandle( fh );
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#endif /* defined (_MT) && !defined (DLL_FOR_WIN32S) */
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}
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break;
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***************
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*** 335,346 ****
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/* find out what type of file (file/device/pipe) */
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isdev = GetFileType((HANDLE)osfhandle);
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if (isdev == FILE_TYPE_UNKNOWN) {
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! /* OS error */
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! _dosmaperr( GetLastError() ); /* map error */
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! return -1;
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}
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/* is isdev value to set flags */
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if (isdev == FILE_TYPE_CHAR)
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fileflags |= FDEV;
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--- 336,352 ----
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/* find out what type of file (file/device/pipe) */
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isdev = GetFileType((HANDLE)osfhandle);
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+ #if 0
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if (isdev == FILE_TYPE_UNKNOWN) {
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! /* OS error */
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! _dosmaperr( GetLastError() ); /* map error */
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! return -1;
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}
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+ #else
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+ /* Windows 95 lossage */
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+ if (isdev == FILE_TYPE_UNKNOWN) isdev = FILE_TYPE_PIPE;
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+ #endif
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/* is isdev value to set flags */
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if (isdev == FILE_TYPE_CHAR)
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fileflags |= FDEV;
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