ovsdb-idl: Add the support to specify the uuid for row insert.

ovsdb-server allows the OVSDB clients to specify the uuid for
the row inserts [1].  Both the C IDL client library and Python
IDL are missing this feature.  This patch adds this support.

In C IDL, for each schema table, a new function is generated -
<schema_table>insert_persistent_uuid(txn, uuid) which can
be used the clients to persist the uuid.

ovs-vsctl and other derivatives of ctl now supports the same
in the generic 'create' command with the option "--id=<UUID>".

In Python IDL, the uuid to persist can be specified in
the Transaction.insert() function.

[1] - a529e3cd1f("ovsdb-server: Allow OVSDB clients to specify the UUID for inserted rows.:)

Acked-by: Adrian Moreno <amorenoz@redhat.com>
Acked-by: Han Zhou <hzhou@ovn.org>
Acked-by: Terry Wilson <twilson@redhat.com>
Signed-off-by: Numan Siddique <numans@ovn.org>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/ovsdb/ovsdb-idlc.in b/ovsdb/ovsdb-idlc.in
index 5a97a8ea3..9a54f06a1 100755
--- a/ovsdb/ovsdb-idlc.in
+++ b/ovsdb/ovsdb-idlc.in
@@ -362,6 +362,8 @@ struct %(s)s *%(s)s_cursor_data(struct ovsdb_idl_cursor *);
 void %(s)s_init(struct %(s)s *);
 void %(s)s_delete(const struct %(s)s *);
 struct %(s)s *%(s)s_insert(struct ovsdb_idl_txn *);
+struct %(s)s *%(s)s_insert_persist_uuid(
+    struct ovsdb_idl_txn *txn, const struct uuid *uuid);
 
 /* Returns true if the tracked column referenced by 'enum %(s)s_column_id' of
  * the row referenced by 'struct %(s)s *' was updated since the last change
@@ -809,6 +811,19 @@ struct %(s)s *
     return %(s)s_cast(ovsdb_idl_txn_insert(txn, &%(p)stable_%(tl)s, NULL));
 }
 
+/* Inserts and returns a new row in the table "%(t)s" in the database
+ * with open transaction 'txn'.
+ *
+ * The new row is assigned the UUID specified in the 'uuid' parameter
+ * (which cannot be null).  ovsdb-server will try to assign the same
+ * UUID when 'txn' is committed. */
+struct %(s)s *
+%(s)s_insert_persist_uuid(struct ovsdb_idl_txn *txn, const struct uuid *uuid)
+{
+    return %(s)s_cast(ovsdb_idl_txn_insert_persist_uuid(
+        txn, &%(p)stable_%(tl)s, uuid));
+}
+
 bool
 %(s)s_is_updated(const struct %(s)s *row, enum %(s)s_column_id column)
 {