r16945: Sync trunk -> 3.0 for 3.0.24 code. Still need

to do the upper layer directories but this is what
everyone is waiting for....

Jeremy.
(This used to be commit 9dafb7f48ca3e7af956b0a7d1720c2546fc4cfb8)

1 files changed, 88 insertions, 0 deletions

diff --git a/source3/include/locking.h b/source3/include/locking.h
new file mode 100644
index 0000000000..983d59a853
--- /dev/null
+++ b/source3/include/locking.h
@@ -0,0 +1,88 @@
+/* 
+   Unix SMB/CIFS implementation.
+   SMB parameters and setup, plus a whole lot more.
+   
+   Copyright (C) Jeremy Allison   2006
+   
+   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 of the License, 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.
+*/
+
+#ifndef _LOCKING_H
+#define _LOCKING_H
+
+/* passed to br lock code - the UNLOCK_LOCK should never be stored into the tdb
+   and is used in calculating POSIX unlock ranges only. */
+
+enum brl_type {READ_LOCK, WRITE_LOCK, PENDING_LOCK, UNLOCK_LOCK};
+enum brl_flavour {WINDOWS_LOCK = 0, POSIX_LOCK = 1};
+
+/* This contains elements that differentiate locks. The smbpid is a
+   client supplied pid, and is essentially the locking context for
+   this client */
+
+struct lock_context {
+	uint32 smbpid;
+	uint16 tid;
+	struct process_id pid;
+};
+
+/* The key used in the brlock database. */
+
+struct lock_key {
+	SMB_DEV_T device;
+	SMB_INO_T inode;
+};
+
+struct byte_range_lock {
+	files_struct *fsp;
+	unsigned int num_locks;
+	BOOL modified;
+	struct lock_key key;
+	void *lock_data;
+};
+
+#define BRLOCK_FN_CAST() \
+	void (*)(SMB_DEV_T dev, SMB_INO_T ino, struct process_id pid, \
+				 enum brl_type lock_type, \
+				 enum brl_flavour lock_flav, \
+				 br_off start, br_off size)
+
+#define BRLOCK_FN(fn) \
+	void (*fn)(SMB_DEV_T dev, SMB_INO_T ino, struct process_id pid, \
+				 enum brl_type lock_type, \
+				 enum brl_flavour lock_flav, \
+				 br_off start, br_off size)
+
+#define LOCKING_FN_CAST() \
+	void (*)(struct share_mode_entry *, const char *, const char *)
+
+#define LOCKING_FN(fn) \
+	void (*fn)(struct share_mode_entry *, const char *, const char *)
+
+/* Internal structure in brlock.tdb. 
+   The data in brlock records is an unsorted linear array of these
+   records.  It is unnecessary to store the count as tdb provides the
+   size of the record */
+
+struct lock_struct {
+	struct lock_context context;
+	br_off start;
+	br_off size;
+	uint16 fnum;
+	enum brl_type lock_type;
+	enum brl_flavour lock_flav;
+};
+
+#endif /* _LOCKING_H_ */