nim-codex/codex/blockexchange/peers/peercontext.nim

71 lines
2.1 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/sequtils
import std/tables
import std/sets
import pkg/libp2p
import pkg/chronos
import pkg/nitro
import pkg/questionable
import ../protobuf/blockexc
import ../protobuf/payments
import ../protobuf/presence
import ../../blocktype
import ../../logutils
export payments, nitro
logScope:
topics = "codex peercontext"
type
BlockExcPeerCtx* = ref object of RootObj
id*: PeerId
blocks*: Table[BlockAddress, Presence] # remote peer have list including price
peerWants*: seq[WantListEntry] # remote peers want lists
exchanged*: int # times peer has exchanged with us
lastExchange*: Moment # last time peer has exchanged with us
account*: ?Account # ethereum account of this peer
paymentChannel*: ?ChannelId # payment channel id
proc peerHave*(self: BlockExcPeerCtx): seq[BlockAddress] =
toSeq(self.blocks.keys)
proc peerHaveCids*(self: BlockExcPeerCtx): HashSet[Cid] =
self.blocks.keys.toSeq.mapIt(it.cidOrTreeCid).toHashSet
proc peerWantsCids*(self: BlockExcPeerCtx): HashSet[Cid] =
self.peerWants.mapIt(it.address.cidOrTreeCid).toHashSet
proc contains*(self: BlockExcPeerCtx, address: BlockAddress): bool =
address in self.blocks
func setPresence*(self: BlockExcPeerCtx, presence: Presence) =
self.blocks[presence.address] = presence
func cleanPresence*(self: BlockExcPeerCtx, addresses: seq[BlockAddress]) =
for a in addresses:
self.blocks.del(a)
func cleanPresence*(self: BlockExcPeerCtx, address: BlockAddress) =
self.cleanPresence(@[address])
func price*(self: BlockExcPeerCtx, addresses: seq[BlockAddress]): UInt256 =
var price = 0.u256
for a in addresses:
self.blocks.withValue(a, precense):
price += precense[].price
trace "Blocks price", price
price