nim-codex/codex/stores/blockstore.nim

64 lines
1.4 KiB
Nim

## Nim-Codex
## Copyright (c) 2021 Status Research & Development GmbH
## Licensed under either of
## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
## * MIT license ([LICENSE-MIT](LICENSE-MIT))
## at your option.
## This file may not be copied, modified, or distributed except according to
## those terms.
import pkg/upraises
push: {.upraises: [].}
import pkg/chronos
import pkg/libp2p
import pkg/questionable/results
import ../blocktype
export blocktype, libp2p
type
OnBlock* = proc(cid: Cid): Future[void] {.upraises: [], gcsafe.}
BlockStore* = ref object of RootObj
method getBlock*(
b: BlockStore,
cid: Cid): Future[?!Block] {.base.} =
## Get a block from the stores
##
raiseAssert("Not implemented!")
method putBlock*(
s: BlockStore,
blk: Block): Future[bool] {.base.} =
## Put a block to the blockstore
##
raiseAssert("Not implemented!")
method delBlock*(
s: BlockStore,
cid: Cid): Future[?!void] {.base.} =
## Delete a block from the blockstore
##
raiseAssert("Not implemented!")
method hasBlock*(s: BlockStore, cid: Cid): bool {.base.} =
## Check if the block exists in the blockstore
##
return false
method listBlocks*(s: BlockStore, onBlock: OnBlock): Future[void] {.base.} =
## Get the list of blocks in the BlockStore. This is an intensive operation
##
raiseAssert("Not implemented!")
proc contains*(s: BlockStore, blk: Cid): bool =
s.hasBlock(blk)