Initial revision

1 files changed, 71 insertions, 0 deletions

diff --git a/libstore/create.c b/libstore/create.c
new file mode 100644
index 00000000..8e55f79d
--- /dev/null
+++ b/libstore/create.c
@@ -0,0 +1,71 @@
+/* Store creation
+
+   Copyright (C) 1995 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 "store.h"
+
+/* Return a new store in STORE, which refers to the storage underlying
+   SOURCE.  A reference to SOURCE is created (but may be destroyed with
+   store_close_source).  */
+error_t store_create (file_t source, struct store **store)
+{
+  error_t err;
+  mach_port_t port;
+  string_t name_buf;
+  vm_address_t misc;
+  vm_size_t misc_len = 0;
+  off_t *runs;
+  unsigned runs_len = 0;
+  int flags;
+
+  err = file_get_storage_info (source, &class, &runs, &runs_len, block_size,
+			       name_buf, &port, &misc, &misc_len, &flags);
+  if (err)
+    return err;
+
+  if (misc_len > 0)
+    vm_deallocate (mach_task_self (), misc, misc_len);
+
+  switch (class)
+    {
+    case STORAGE_DEVICE:
+      err = _store_device_create (port, runs, runs_len, block_size, store);
+      break;
+    case STORAGE_FILE:
+      err = _store_device_create (port, runs, runs_len, block_size, store);
+      break;
+    default:
+      err = EINVAL;
+    }
+
+  if (!err && *name_buf)
+    /* Copy out of our stack buffer NAME_BUF.  */
+    store_set_name (*store, name_buf);
+
+  if (runs_len > 0)
+    /* RUNS is copied into malloced storage above.  */
+    vm_deallocate (mach_task_self (), runs, runs_len);
+
+  if (err)
+    mach_port_deallocate (mach_task_self (), port);
+
+  return err;
+}