newlib-cygwin/winsup/cygwin/fhandler/null.cc

27 lines
604 B
C++

/* null.cc. /dev/null specifics.
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 "path.h"
#include "fhandler.h"
fhandler_dev_null::fhandler_dev_null () :
fhandler_base ()
{
}
ssize_t
fhandler_dev_null::write (const void *ptr, size_t len)
{
/* Shortcut. This also fixes a problem with the NUL device on x86_64:
If you write > 4 GB in a single attempt, the bytes written returned
from by is numBytes & 0xffffffff. */
return len;
}