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2fe1e601c9
share_mode_lock.c is where it's created Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/*
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Unix SMB/CIFS implementation.
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SMB parameters and setup, plus a whole lot more.
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Copyright (C) Jeremy Allison 2006
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _LOCKING_H
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#define _LOCKING_H
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/* passed to br lock code - the UNLOCK_LOCK should never be stored into the tdb
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and is used in calculating POSIX unlock ranges only. We differentiate between
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PENDING read and write locks to allow posix lock downgrades to trigger a lock
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re-evaluation. */
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enum brl_type {READ_LOCK, WRITE_LOCK, UNLOCK_LOCK};
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enum brl_flavour {WINDOWS_LOCK = 0, POSIX_LOCK = 1};
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#include "librpc/gen_ndr/server_id.h"
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#include "librpc/gen_ndr/misc.h"
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/* This contains elements that differentiate locks. The smbpid is a
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client supplied pid, and is essentially the locking context for
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this client */
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struct lock_context {
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uint64_t smblctx;
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uint32_t tid;
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struct server_id pid;
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};
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struct files_struct;
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#include "lib/file_id.h"
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struct byte_range_lock;
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typedef uint64_t br_off;
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/* Internal structure in brlock.tdb.
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The data in brlock records is an unsorted linear array of these
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records. It is unnecessary to store the count as tdb provides the
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size of the record */
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struct lock_struct {
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struct lock_context context;
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br_off start;
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br_off size;
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uint64_t fnum;
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enum brl_type lock_type;
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enum brl_flavour lock_flav;
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};
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struct smbd_lock_element {
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struct GUID req_guid;
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uint64_t smblctx;
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enum brl_type brltype;
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uint64_t offset;
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uint64_t count;
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};
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struct share_mode_lock;
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#endif /* _LOCKING_H_ */
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