ovsdb/table.h

   1 /* Copyright (c) 2009 Nicira Networks
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #ifndef OVSDB_TABLE_H
  17 #define OVSDB_TABLE_H 1
  18
  19 #include <stdbool.h>
  20 #include "compiler.h"
  21 #include "hmap.h"
  22 #include "shash.h"
  23
  24 struct json;
  25 struct uuid;
  26
  27 /* Schema for a database table. */
  28 struct ovsdb_table_schema {
  29     char *name;
  30     char *comment;
  31     bool mutable;
  32     struct shash columns;       /* Contains "struct ovsdb_column *"s. */
  33 };
  34
  35 struct ovsdb_table_schema *ovsdb_table_schema_create(const char *name,
  36                                                      const char *comment,
  37                                                      bool mutable);
  38 void ovsdb_table_schema_destroy(struct ovsdb_table_schema *);
  39
  40 struct ovsdb_error *ovsdb_table_schema_from_json(const struct json *,
  41                                                  const char *name,
  42                                                  struct ovsdb_table_schema **)
  43     WARN_UNUSED_RESULT;
  44 struct json *ovsdb_table_schema_to_json(const struct ovsdb_table_schema *);
  45
  46 const struct ovsdb_column *ovsdb_table_schema_get_column(
  47     const struct ovsdb_table_schema *, const char *name);
  48 \f
  49 /* Database table. */
  50
  51 struct ovsdb_table {
  52     struct ovsdb_table_schema *schema;
  53     struct hmap rows;           /* Contains "struct ovsdb_row"s. */
  54 };
  55
  56 struct ovsdb_table *ovsdb_table_create(struct ovsdb_table_schema *);
  57 void ovsdb_table_destroy(struct ovsdb_table *);
  58
  59 const struct ovsdb_row *ovsdb_table_get_row(const struct ovsdb_table *,
  60                                             const struct uuid *);
  61 bool ovsdb_table_put_row(struct ovsdb_table *, struct ovsdb_row *);
  62
  63 #endif /* ovsdb/table.h */