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+/* procfs -- a translator for providing GNU/Linux compatible
+ proc pseudo-filesystem
+
+ bootstrap.c -- This file is functions for starting up
+ and initializers for the procfs translator
+ defined in procfs.h
+
+ Copyright (C) 2008, FSF.
+ Written as a Summer of Code Project
+
+ procfs 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.
+
+ procfs 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 <stddef.h>
+#include <hurd/ihash.h>
+#include <hurd/netfs.h>
+
+#include "procfs.h"
+
+struct ps_context *ps_context;
+
+/* This function is used to initialize the whole translator, can be
+ effect called as bootstrapping the translator. */
+error_t procfs_init ()
+{
+ error_t err;
+
+ err = ps_context_create (getproc (), &ps_context);
+
+ return err;
+}
+
+/* Create a new procfs filesystem. */
+error_t procfs_create (char *procfs_root, int fsid,
+ struct procfs **fs)
+{
+ error_t err;
+ /* This is the enclosing directory for this filesystem's
+ root node */
+ struct procfs_dir *topmost_root_dir;
+
+ /* And also a topmost-root node, just used for locking
+ TOPMOST_ROOT_DIR. */
+ struct node *topmost_root;
+
+ /* The new node for the filesystem's root. */
+ struct procfs *new = malloc (sizeof (struct procfs));
+
+ if (! new)
+ return ENOMEM;
+
+ new->fsid = fsid;
+ new->next_inode = 2;
+
+ hurd_ihash_init (&new->inode_mappings,
+ offsetof (struct procfs_dir_entry, inode_locp));
+ spin_lock_init (&new->inode_mappings_lock);
+
+ topmost_root = netfs_make_node (0);
+ if (! topmost_root)
+ err = ENOMEM;
+ else
+ {
+ err = procfs_dir_create (new, topmost_root, procfs_root,
+ &topmost_root_dir);
+ if (! err)
+ {
+ /* ADDITIONAL BOOTSTRAPPING OF THE ROOT NODE */
+ err = procfs_dir_null_lookup (topmost_root_dir, &new->root);
+ }
+ }
+
+ if (err)
+ {
+ hurd_ihash_destroy (&new->inode_mappings);
+ free (new);
+ }
+ else
+ *fs = new;
+
+ return err;
+}
+