mirror of
https://github.com/status-im/nim-dagger.git
synced 2025-01-12 07:34:08 +00:00
2fb39ca4a3
* use PeerInfo in event handlers * use CidV1 and raw multicodec as default * add block stream abstraction * raises defect * adding dataset abstraction * move blockstream into own dir * reorg files and fix tests * rename dataset to blockset * wip * wip * adding basic test for treehash algo * run blockset tests along with with the rest * remove obsolete contents * fix chunker tests * rename bitswap and move to stores * rename bitwsap to blockexc and move to stores * moare project structure reorg
74 lines
1.7 KiB
Nim
74 lines
1.7 KiB
Nim
## Nim-Dagger
|
|
## 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 std/tables
|
|
|
|
import pkg/chronicles
|
|
import pkg/chronos
|
|
import pkg/libp2p
|
|
|
|
import ../blocktype
|
|
|
|
logScope:
|
|
topics = "dagger blockexc pendingblocks"
|
|
|
|
type
|
|
PendingBlocksManager* = ref object of RootObj
|
|
blocks*: Table[Cid, Future[Block]] # pending Block requests
|
|
|
|
proc addOrAwait*(
|
|
p: PendingBlocksManager,
|
|
cid: Cid):
|
|
Future[Block] {.async.} =
|
|
## Add an event for a block
|
|
##
|
|
|
|
if cid notin p.blocks:
|
|
p.blocks[cid] = newFuture[Block]()
|
|
trace "Adding pending future for block", cid
|
|
|
|
let blk = p.blocks[cid]
|
|
try:
|
|
return await blk
|
|
except CancelledError as exc:
|
|
trace "Blocks cancelled", exc = exc.msg, cid
|
|
raise exc
|
|
except CatchableError as exc:
|
|
trace "Pending WANT failed or expired", exc = exc.msg
|
|
finally:
|
|
p.blocks.del(cid)
|
|
|
|
proc resolve*(
|
|
p: PendingBlocksManager,
|
|
blocks: seq[Block]) =
|
|
## Resolve pending blocks
|
|
##
|
|
|
|
for blk in blocks:
|
|
# resolve any pending blocks
|
|
if blk.cid in p.blocks:
|
|
let pending = p.blocks[blk.cid]
|
|
if not pending.finished:
|
|
trace "Resolving block", cid = $blk.cid
|
|
pending.complete(blk)
|
|
p.blocks.del(blk.cid)
|
|
|
|
proc pending*(
|
|
p: PendingBlocksManager,
|
|
cid: Cid): bool = cid in p.blocks
|
|
|
|
proc contains*(
|
|
p: PendingBlocksManager,
|
|
cid: Cid): bool = p.pending(cid)
|
|
|
|
func new*(T: type PendingBlocksManager): T =
|
|
T(
|
|
blocks: initTable[Cid, Future[Block]]()
|
|
)
|