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https://github.com/openvswitch/ovs
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cd26c1dc41
The new comment reflects with more clarity what ovsdb_idl_add_table() does. Previous comment could be misunderstood, leading to believe that this function replicates all columns on IDL. Hopefully this fix clarifies that columns are not replicated, just minimal data for reference integrity is replicated. A comment in ovsdb_idl_table_class is also modified to better reflect this behaviour. Signed-off-by: Edward Aymerich <edward.aymerich@hpe.com> Signed-off-by: Ben Pfaff <blp@ovn.org>
90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
/* Copyright (c) 2009, 2010, 2011, 2012 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef OVSDB_IDL_PROVIDER_H
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#define OVSDB_IDL_PROVIDER_H 1
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#include "hmap.h"
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#include "list.h"
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#include "ovsdb-idl.h"
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#include "ovsdb-types.h"
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#include "shash.h"
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#include "uuid.h"
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struct ovsdb_idl_row {
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struct hmap_node hmap_node; /* In struct ovsdb_idl_table's 'rows'. */
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struct uuid uuid; /* Row "_uuid" field. */
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struct ovs_list src_arcs; /* Forward arcs (ovsdb_idl_arc.src_node). */
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struct ovs_list dst_arcs; /* Backward arcs (ovsdb_idl_arc.dst_node). */
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struct ovsdb_idl_table *table; /* Containing table. */
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struct ovsdb_datum *old; /* Committed data (null if orphaned). */
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/* Transactional data. */
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struct ovsdb_datum *new; /* Modified data (null to delete row). */
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unsigned long int *prereqs; /* Bitmap of columns to verify in "old". */
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unsigned long int *written; /* Bitmap of columns from "new" to write. */
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struct hmap_node txn_node; /* Node in ovsdb_idl_txn's list. */
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unsigned int change_seqno[OVSDB_IDL_CHANGE_MAX];
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struct ovs_list track_node;
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};
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struct ovsdb_idl_column {
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char *name;
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struct ovsdb_type type;
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bool mutable;
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void (*parse)(struct ovsdb_idl_row *, const struct ovsdb_datum *);
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void (*unparse)(struct ovsdb_idl_row *);
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};
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struct ovsdb_idl_table_class {
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char *name;
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bool is_root;
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const struct ovsdb_idl_column *columns;
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size_t n_columns;
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size_t allocation_size;
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void (*row_init)(struct ovsdb_idl_row *);
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};
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struct ovsdb_idl_table {
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const struct ovsdb_idl_table_class *class;
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unsigned char *modes; /* OVSDB_IDL_* bitmasks, indexed by column. */
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bool need_table; /* Monitor table even if no columns are selected
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* for replication. */
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struct shash columns; /* Contains "const struct ovsdb_idl_column *"s. */
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struct hmap rows; /* Contains "struct ovsdb_idl_row"s. */
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struct ovsdb_idl *idl; /* Containing idl. */
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unsigned int change_seqno[OVSDB_IDL_CHANGE_MAX];
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struct ovs_list track_list; /* Tracked rows (ovsdb_idl_row.track_node). */
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};
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struct ovsdb_idl_class {
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const char *database; /* <db-name> for this database. */
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const struct ovsdb_idl_table_class *tables;
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size_t n_tables;
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};
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struct ovsdb_idl_row *ovsdb_idl_get_row_arc(
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struct ovsdb_idl_row *src,
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struct ovsdb_idl_table_class *dst_table,
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const struct uuid *dst_uuid);
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void ovsdb_idl_txn_verify(const struct ovsdb_idl_row *,
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const struct ovsdb_idl_column *);
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struct ovsdb_idl_txn *ovsdb_idl_txn_get(const struct ovsdb_idl_row *);
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#endif /* ovsdb-idl-provider.h */
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