1 files changed, 100 insertions, 0 deletions
diff --git a/libstore/make.c b/libstore/make.c
new file mode 100644
index 00000000..ed476ba4
--- /dev/null
+++ b/libstore/make.c
@@ -0,0 +1,100 @@
+/* Store allocation/deallocation
+
+   Copyright (C) 1995, 1996, 1997 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */
+
+#include <malloc.h>
+
+#include "store.h"
+
+/* Allocate a new store structure with meths METHS, and the various other
+   fields initialized to the given parameters.  */
+error_t
+_store_create (const struct store_class *class,
+	       mach_port_t port, int flags, size_t block_size,
+	       const struct store_run *runs, size_t num_runs, off_t end,
+	       struct store **store)
+{
+  if ((block_size & (block_size - 1)) || (block_size == 0 && num_runs > 0))
+    return EINVAL;		/* block size not a power of two.  */
+  else
+    {
+      struct store *new = malloc (sizeof (struct store));
+      if (new)
+	{
+	  error_t err;
+
+	  new->name = 0;
+	  new->port = port;
+	  new->runs = 0;
+	  new->num_runs = 0;
+	  new->wrap_src = 0;
+	  new->wrap_dst = 0;
+	  new->flags = flags;
+	  new->end = end;
+	  new->block_size = block_size;
+	  new->source = MACH_PORT_NULL;
+	  new->blocks = 0;
+	  new->size = 0;
+	  new->log2_block_size = 0;
+	  new->log2_blocks_per_page = 0;
+	  new->misc = 0;
+	  new->misc_len = 0;
+	  new->hook = 0;
+	  new->children = 0;
+	  new->num_children = 0;
+
+	  new->class = class;
+
+	  /* store_set_runs calls _store_derive to derive other fields. */
+	  err = store_set_runs (new, runs, num_runs);
+	  if (err)
+	    free (new);
+	  else
+	    *store = new;
+
+	  return err;
+	}
+      else
+	return ENOMEM;
+    }
+}
+
+void
+store_free (struct store *store)
+{
+  int k;
+
+  if (store->class->cleanup)
+    (*store->class->cleanup) (store);
+
+  for (k = 0; k < store->num_children; k++)
+    store_free (store->children[k]);
+
+  if (store->port != MACH_PORT_NULL)
+    mach_port_deallocate (mach_task_self (), store->port);
+  if (store->source != MACH_PORT_NULL)
+    mach_port_deallocate (mach_task_self (), store->source);
+
+  if (store->name)
+    free (store->name);
+  if (store->runs)
+    free (store->runs);
+
+  free (store);
+}