nim-codex/dagger/bitswap/networkpeer.nim
Dmitriy Ryajov 6c92b3dc25
Poc 2 (#7)
* moving protobuf into bitswap

* adding block type

* reworking bitswap

* adding chunker

* adding license header

* use 1.2.6

* adding fixed size chunker

* add blockstore

* add iterator to chunker

* more bitswap changes

* rename ipfs to dagger

* rename to dagger

* blockstore inherits from BlockProvider

* wip - add core block handling logic

* smal changes

* use proper block store methods

* adding asynq heapqueue

* wip prepare for bitswap task runner

* adding `$`

* adding memory store and tests

* fixed chunking

* extracted desicion engine from bitswap

* added helper random funcs

* adding testing helpers

* only handle seqs

* add peer events

* cleanup pending blocks on blockstore event

* allow nil handlers

* move protobuf type helpers

* allow initializing block from Cid

* testing and fixes

* small fixes

* expose `<`

* spelling

* default value

* spelling

* pending blocks manager

* adding stores manager

* more tests a wip around bitswap

* small changes

* merge bitswap and engine for now

* for now run only the new poc's tests

* add a more complete ci setup

* use template in map

* remove p2pd

* remove go

* dont use asyncCheck

* few small changes

* adding ability to update items

* adding multiple task runners

* handle cancelation properly

* use Result instead of throwing

* wip bitswap tests

* moving things around

* split out engine again

* add request and handlers interface

* fix tests

* wip - engine tests

* remove unused imports

* fix tests

* cleanup block requesting logic

* add block request tests

* more block requests

* add support for max heap

* don't use result

* use max heap & send block presence in task handler

* add task handler tests

* rename store to localStore

* cleanup & logging

* cancel task on stop

* don't depend on local store for events

* dont use heap queue for wants

* add chronicles

* fix issue with peer wants

* add test for delayed block sends

* remove obsolete tests

* wip chunker

* run all tests

* add todo

* misc

* remove irrelevant files

* removing more files

* adding helpers for bitswap tests

* moved bitswap file

* misc

* make blocks timeout longer

* adjust block timeout

* speedup test

* compile with threads

* import missing crypto

* misc

* disable threads for now

* fix 32 bit platforms

* re-enable threads support in tests
2021-02-25 18:23:22 -06:00

81 lines
2.0 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 pkg/chronos
import pkg/chronicles
import pkg/protobuf_serialization
import pkg/libp2p
import ./protobuf/bitswap
logScope:
topics = "dagger bitswap networkpeer"
const MaxMessageSize = 8 * 1024 * 1024
type
RPCHandler* = proc(peer: NetworkPeer, msg: Message): Future[void] {.gcsafe.}
NetworkPeer* = ref object of RootObj
id*: PeerId
handler*: RPCHandler
sendConn: Connection
getConn: ConnProvider
proc connected*(b: NetworkPeer): bool =
not(isNil(b.sendConn)) and
not(b.sendConn.closed or b.sendConn.atEof)
proc readLoop*(b: NetworkPeer, conn: Connection) {.async.} =
if isNil(conn):
return
try:
while not conn.atEof:
let data = await conn.readLp(MaxMessageSize)
let msg: Message = Protobuf.decode(data, Message)
trace "Got message for peer", peer = b.id, msg
await b.handler(b, msg)
except CatchableError as exc:
trace "Exception in bitswap read loop", exc = exc.msg
finally:
await conn.close()
proc connect*(b: NetworkPeer): Future[Connection] {.async.} =
if b.connected:
return b.sendConn
b.sendConn = await b.getConn()
asyncSpawn b.readLoop(b.sendConn)
return b.sendConn
proc send*(b: NetworkPeer, msg: Message) {.async.} =
let conn = await b.connect()
if isNil(conn):
trace "Unable to get send connection for peer message not sent", peer = b.id
return
trace "Sending message to remote", peer = b.id, msg = $msg
await conn.writeLp(Protobuf.encode(msg))
proc new*(
T: type NetworkPeer,
peer: PeerId,
connProvider: ConnProvider,
rpcHandler: RPCHandler): T =
doAssert(not isNil(connProvider),
"should supply connection provider")
NetworkPeer(
id: peer,
getConn: connProvider,
handler: rpcHandler)