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/* Setting various store flags
Copyright (C) 1996 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
The GNU Hurd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <malloc.h>
#include <string.h>
#include "store.h"
/* Add FLAGS to STORE's currently set flags. */
error_t
store_set_flags (struct store *store, int flags)
{
error_t err = 0;
int orig = store->flags, new = flags & ~orig;
if (new & STORE_BACKEND_FLAGS)
if (store->class->set_flags)
err = (*store->class->set_flags) (store, new);
else
err = EINVAL;
if (! err)
store->flags |= (new & ~STORE_BACKEND_FLAGS);
return err;
}
/* Remove FLAGS from STORE's currently set flags. */
error_t
store_clear_flags (struct store *store, int flags)
{
error_t err = 0;
int orig = store->flags, kill = flags & orig;
if (kill & STORE_BACKEND_FLAGS)
if (store->class->clear_flags)
err = (*store->class->clear_flags) (store, kill);
else
err = EINVAL;
if (! err)
store->flags &= ~(kill & ~STORE_BACKEND_FLAGS);
return err;
}
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