Initial revision

1 files changed, 64 insertions, 0 deletions

diff --git a/libstore/flags.c b/libstore/flags.c
new file mode 100644
index 00000000..5d2ce74b
--- /dev/null
+++ b/libstore/flags.c
@@ -0,0 +1,64 @@
+/* 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;
+}