nim-codex/codex/blockexchange/protobuf/blockexc.nim

54 lines
1.3 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 std/hashes
import std/sequtils
import pkg/stew/endians2
import message
import ../../blocktype
export Message, protobufEncode, protobufDecode
export Wantlist, WantType, WantListEntry
export BlockDelivery, BlockPresenceType, BlockPresence
export AccountMessage, StateChannelUpdate
proc hash*(a: BlockAddress): Hash =
if a.leaf:
let data = a.treeCid.data.buffer & @(a.index.uint64.toBytesBE)
hash(data)
else:
hash(a.cid.data.buffer)
proc hash*(e: WantListEntry): Hash =
hash(e.address)
proc contains*(a: openArray[WantListEntry], b: BlockAddress): bool =
## Convenience method to check for peer precense
##
a.anyIt(it.address == b)
proc `==`*(a: WantListEntry, b: BlockAddress): bool =
return a.address == b
proc `<`*(a, b: WantListEntry): bool =
a.priority < b.priority
proc `==`*(a: BlockPresence, b: BlockAddress): bool =
return a.address == b
proc contains*(a: openArray[BlockPresence], b: BlockAddress): bool =
## Convenience method to check for peer precense
##
a.anyIt(it.address == b)