Initial revision

3 files changed, 99 insertions, 0 deletions

diff --git a/libdiskfs/peropen-make.c b/libdiskfs/peropen-make.c
new file mode 100644
index 00000000..f8a83a58
--- /dev/null
+++ b/libdiskfs/peropen-make.c
@@ -0,0 +1,33 @@
+/* 
+   Copyright (C) 1994 Free Software Foundation
+
+   This program 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.
+
+   This program 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 "priv.h"
+
+/* Create and return a new peropen structure on node NP with open
+   flags FLAGS.  */
+struct peropen *
+diskfs_make_peropen (struct node *np, int flags)
+{
+  struct peropen *po = malloc (sizeof (struct peropen));
+  diskfs_nref (np);
+  po->filepointer = 0;
+  po->flock_status = LOCK_UN;
+  po->refcnt = 0;
+  po->openstat = flags;
+  po->np = np;
+  return po;
+}
diff --git a/libdiskfs/peropen-rele.c b/libdiskfs/peropen-rele.c
new file mode 100644
index 00000000..c6ec79a7
--- /dev/null
+++ b/libdiskfs/peropen-rele.c
@@ -0,0 +1,34 @@
+/* 
+   Copyright (C) 1994 Free Software Foundation
+
+   This program 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.
+
+   This program 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 "priv.h"
+
+/* Decrement the reference count on a peropen structure. */
+void
+diskfs_release_peropen (struct peropen *po)
+{
+  mutex_lock (&po->np->lock);
+  if (--po->refcnt)
+    {
+      mutex_unlock (&po->np->lock);
+      return;
+    }
+  diskfs_nput (np);
+  free (po);
+}
+
+  
diff --git a/libdiskfs/protid-make.c b/libdiskfs/protid-make.c
new file mode 100644
index 00000000..13767ae7
--- /dev/null
+++ b/libdiskfs/protid-make.c
@@ -0,0 +1,32 @@
+/* 
+   Copyright (C) 1994 Free Software Foundation
+
+   This program 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.
+
+   This program 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 "priv.h"
+
+/* Build and return a protid which has no user identification for 
+   peropen PO.  The node PO->np must be locked.  */
+struct protid *
+diskfs_start_protid (struct peropen *po)
+{
+  struct protid *cred = allocate_port (sizeof (struct protid), PT_PROTID);
+  
+  po->refcnt++;
+  cred->po = po;
+  cred->shared_object = MACH_PORT_NULL;
+  cred->mapped = 0;
+  return cred;
+}