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114 lines
3 KiB
C
114 lines
3 KiB
C
/* NFSv4.1 client for Windows
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* Copyright © 2012 The Regents of the University of Michigan
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*
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* Olga Kornievskaia <aglo@umich.edu>
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* Casey Bodley <cbodley@umich.edu>
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at
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* your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* without any warranty; without even the implied warranty of merchantability
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* or fitness for a particular purpose. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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*/
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#ifndef DELEGATION_H
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#define DELEGATION_H
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#include "nfs41.h"
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/* option to avoid conflicts by returning the delegation */
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#define DELEGATION_RETURN_ON_CONFLICT
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/* reference counting and cleanup */
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void nfs41_delegation_ref(
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IN nfs41_delegation_state *state);
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void nfs41_delegation_deref(
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IN nfs41_delegation_state *state);
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void nfs41_client_delegation_free(
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IN nfs41_client *client);
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/* open delegation */
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int nfs41_delegation_granted(
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IN nfs41_session *session,
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IN nfs41_path_fh *parent,
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IN nfs41_path_fh *file,
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IN open_delegation4 *delegation,
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IN bool_t try_recovery,
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OUT nfs41_delegation_state **deleg_out);
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int nfs41_delegate_open(
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IN nfs41_open_state *state,
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IN uint32_t create,
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IN OPTIONAL nfs41_file_info *createattrs,
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OUT nfs41_file_info *info);
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int nfs41_delegation_to_open(
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IN nfs41_open_state *open,
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IN bool_t try_recovery);
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void nfs41_delegation_remove_srvopen(
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IN nfs41_session *session,
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IN nfs41_path_fh *file);
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/* synchronous delegation return */
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#ifdef DELEGATION_RETURN_ON_CONFLICT
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int nfs41_delegation_return(
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IN nfs41_session *session,
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IN nfs41_path_fh *file,
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#ifndef __REACTOS__
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IN enum open_delegation_type4 access,
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#else
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IN int access,
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#endif
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IN bool_t truncate);
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#else
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static int nfs41_delegation_return(
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IN nfs41_session *session,
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IN nfs41_path_fh *file,
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IN enum open_delegation_type4 access,
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IN bool_t truncate)
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{
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return NFS4_OK;
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}
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#endif
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/* asynchronous delegation recall */
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int nfs41_delegation_recall(
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IN nfs41_client *client,
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IN nfs41_fh *fh,
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IN const stateid4 *stateid,
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IN bool_t truncate);
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int nfs41_delegation_getattr(
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IN nfs41_client *client,
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IN const nfs41_fh *fh,
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IN const bitmap4 *attr_request,
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OUT nfs41_file_info *info);
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/* after client state recovery, return any 'recalled' delegations;
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* must be called under the client's state lock */
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int nfs41_client_delegation_recovery(
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IN nfs41_client *client);
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/* attempt to return the least recently used delegation;
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* fails with NFS4ERR_BADHANDLE if all delegations are in use */
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int nfs41_client_delegation_return_lru(
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IN nfs41_client *client);
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#endif /* DELEGATION_H */
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