nim-codex/dagger/bitswap/networkpeer.nim

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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
2021-02-26 00:23:22 +00:00
## 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)