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* pipe.cc (create_selectable_pipe): Work around bug in Windows 95 

where CreateNamedPipe returns NULL.
This commit is contained in:
Corinna Vinschen 2004-09-09 08:58:44 +00:00
parent bbb5869af9
commit 6423296840
2 changed files with 9 additions and 2 deletions
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5
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,8 @@
2004-09-09 Bas van Gompel <cygwin-patch.buzz@bavag.tmfweb.nl>
* pipe.cc (create_selectable_pipe): Work around bug in Windows 95
where CreateNamedPipe returns NULL.
2004-09-08 Pierre Humblet <pierre.humblet@ieee.org>
* cygheap.h (cwdstuff::drive_length): New member.

6
winsup/cygwin/pipe.cc
View File

@ -259,6 +259,7 @@ create_selectable_pipe (PHANDLE read_pipe_ptr,
the pipe was not created earlier by some other process, even if
the pid has been reused. We avoid FILE_FLAG_FIRST_PIPE_INSTANCE
because that is only available for Win2k SP2 and WinXP. */
SetLastError (0);
read_pipe = CreateNamedPipe (pipename,
PIPE_ACCESS_INBOUND,
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE,
@ -268,13 +269,14 @@ create_selectable_pipe (PHANDLE read_pipe_ptr,
NMPWAIT_USE_DEFAULT_WAIT,
sa_ptr);
if (read_pipe != INVALID_HANDLE_VALUE)
DWORD err = GetLastError ();
/* Win 95 seems to return NULL instead of INVALID_HANDLE_VALUE */
if ((read_pipe || !err) && read_pipe != INVALID_HANDLE_VALUE)
{
debug_printf ("pipe read handle %p", read_pipe);
break;
}
DWORD err = GetLastError ();
switch (err)
{
case ERROR_PIPE_BUSY: