Commit graph

5 commits

Author SHA1 Message Date
Leonard Lyubich
47d2239332 [#220] localstorage: Replace basic errors to core library
Replace ErrNotFound and ErrRangeOutOfBounds to core/object package in order
to share them across the libraries.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
9a4cd01eb8 [#186] localstorage: Implement utility functions over StorageEngine
Implement Put/Get/GetRange/Select/SelectAll functions over storage
engine. These functions are going to be used by Object service.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
6f8c45d61b [#176] localstore: Change multiple access sync
In previous implementation each operation on local storage
locked engine mutex. This was done under the assumption that
the weights of the shards change as a result of write operations.
With the transition to static weights of shards, it is no longer
necessary to lock the global mutex during the execution of operations.
However, since the set of engine shards is dynamic, there is still a
need to control multiple access to this set. The same mutex is used
for synchronization.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
73494c4bbc [#176] localstore: Fix Get with non-zero length
GetPrm has WithPayloadRange option to specify the requested
payload range. In previous implementation StorageEngine.Get
method ignored this option. From now zero length matches
full payload request.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00
Leonard Lyubich
09750484f9 [#176] localstore: Draft storage engine structure and ops
Implement the primary structure and operation of the local object
storage engine.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00