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mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-01-23 23:47:22 +08:00
newlib-cygwin/winsup/cygwin/fhandler_zero.cc
Ken Brown 30c5411d07 Cygwin: remove most occurrences of __stdcall and __cdecl
These have no effect on x86_64.  Retain a few occurrences of __cdecl
in files imported from other sources.

Also retain all occurrences of WINAPI, even though the latter is
simply a macro that expands to __stdcall.  Most of these occurrences
are associated with Windows API functions, and removing them might
make the code confusing instead of simpler.
2022-06-06 12:00:45 -04:00

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/* fhandler_dev_zero.cc: code to access /dev/zero
Written by DJ Delorie (dj@cygnus.com)
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include "security.h"
#include "cygerrno.h"
#include "path.h"
#include "fhandler.h"
fhandler_dev_zero::fhandler_dev_zero ()
: fhandler_base ()
{
}
ssize_t
fhandler_dev_zero::write (const void *, size_t len)
{
if (get_device () == FH_FULL)
{
set_errno (ENOSPC);
return -1;
}
return len;
}
void
fhandler_dev_zero::read (void *ptr, size_t& len)
{
memset (ptr, 0, len);
}