Commit graph

6 commits

Author SHA1 Message Date
Leonard Lyubich
50ab22c19c [#356] netmap: Improve docs and slightly optimize the code
API changes:
  * Rename `Enters` method of the `NodeSubnetInfo` to `Enabled`.
  * Declare undefined behavior of `WriteSubnetInfo` with non-unique
  attributes.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-11-24 17:13:18 +03:00
Leonard Lyubich
abc494b2bc [#356] netmap: Simplify zero subnet processing in IterateSubnets
For now we don't need to distinguish cases of missing zero subnet's
attribute and the one with `True` value.

Remove local enum `zeroStatus` of `IterateSubnets` since we need to
distinguish between two statuses and use `bool` variable for this.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-11-24 17:13:18 +03:00
Leonard Lyubich
dfb780a2b6 [#356] netmap: Document IterateSubnets behavior with duplicate keys
Node attributes must be key-unique. In current implementation
`IterateSubnets` doesn't monitor the uniqueness of keys.

Declare undefined behavior of `IterateSubnets` for non-unique attribute
keys.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-11-24 17:13:18 +03:00
Leonard Lyubich
4560e447e1 [#356] netmap: Fix potential double-processing of zero subnet
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-11-24 17:13:18 +03:00
Leonard Lyubich
051b103df3 [#356] netmap: Return missing subnets error from IterateSubnets
Each NeoFS storage node should be present in at least one subnet.

Make `netmap.IterateSubnets` function to return an error if the node by the
end of the loop does not belong to any subnet.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-11-24 17:13:18 +03:00
Leonard Lyubich
348f9498bd [#356] netmap: Implement the functionality of working with subnets
NeoFS storage node can participate in a subnet group (at least one).
According to NeoFS API V2 protocol, subnets are entered and exited through
the attributes of the node. We should provide functionality for conveniently
setting and reading attributes based on the needs of the network.

Define `NodeSubnetInfo` type which groups information about the subnet
reflected in `NodeInfo`. Implement `WriteSubnetInfo` function which writes
`SubnetInfo` data to `NodeInfo`. It will be used to prepare a request for
registration on the NeoFS network. Implement `IterateSubnets` function which
allows to iterate over all subnets of the node. Moreover, it allows you to
remove a subnet from the `NodeInfo` right during iterative traversal.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-11-24 17:13:18 +03:00