Blame libio/__fsetlocking.c

Packit 6c4009
/* Copyright (C) 2000-2018 Free Software Foundation, Inc.
Packit 6c4009
   This file is part of the GNU C Library.
Packit 6c4009
Packit 6c4009
   The GNU C Library is free software; you can redistribute it and/or
Packit 6c4009
   modify it under the terms of the GNU Lesser General Public
Packit 6c4009
   License as published by the Free Software Foundation; either
Packit 6c4009
   version 2.1 of the License, or (at your option) any later version.
Packit 6c4009
Packit 6c4009
   The GNU C Library is distributed in the hope that it will be useful,
Packit 6c4009
   but WITHOUT ANY WARRANTY; without even the implied warranty of
Packit 6c4009
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Packit 6c4009
   Lesser General Public License for more details.
Packit 6c4009
Packit 6c4009
   You should have received a copy of the GNU Lesser General Public
Packit 6c4009
   License along with the GNU C Library; if not, see
Packit 6c4009
   <http://www.gnu.org/licenses/>.  */
Packit 6c4009
Packit 6c4009
#include <stdio_ext.h>
Packit 6c4009
Packit 6c4009
#undef __fsetlocking
Packit 6c4009
Packit 6c4009
int
Packit 6c4009
__fsetlocking (FILE *fp, int type)
Packit 6c4009
{
Packit 6c4009
  int result = ((fp->_flags & _IO_USER_LOCK)
Packit 6c4009
		? FSETLOCKING_BYCALLER : FSETLOCKING_INTERNAL);
Packit 6c4009
Packit 6c4009
  if (type != FSETLOCKING_QUERY)
Packit 6c4009
    {
Packit 6c4009
      fp->_flags &= ~_IO_USER_LOCK;
Packit 6c4009
      if (type == FSETLOCKING_BYCALLER)
Packit 6c4009
	 fp->_flags |= _IO_USER_LOCK;
Packit 6c4009
    }
Packit 6c4009
Packit 6c4009
  return result;
Packit 6c4009
}
Packit 6c4009
libc_hidden_def (__fsetlocking)