mirror of https://github.com/status-im/nim-eth.git
114 lines
2.9 KiB
Nim
114 lines
2.9 KiB
Nim
import
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chronos,
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../../eth/utp/utp_socket,
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../../eth/utp/packets,
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../../eth/keys
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type AssertionCallback = proc(): bool {.gcsafe, raises: [Defect].}
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let testBufferSize = 1024'u32
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let defaultRcvOutgoingId = 314'u16
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proc waitUntil*(f: AssertionCallback): Future[void] {.async.} =
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while true:
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let res = f()
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if res:
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break
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else:
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await sleepAsync(milliseconds(50))
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template connectOutGoingSocket*(
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initialRemoteSeq: uint16,
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q: AsyncQueue[Packet],
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remoteReceiveBuffer: uint32 = testBufferSize,
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cfg: SocketConfig = SocketConfig.init()): (UtpSocket[TransportAddress], Packet) =
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let sock1 = newOutgoingSocket[TransportAddress](testAddress, initTestSnd(q), cfg, defaultRcvOutgoingId, rng[])
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asyncSpawn sock1.startOutgoingSocket()
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let initialPacket = await q.get()
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check:
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initialPacket.header.pType == ST_SYN
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let responseAck =
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ackPacket(
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initialRemoteSeq,
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initialPacket.header.connectionId,
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initialPacket.header.seqNr,
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remoteReceiveBuffer,
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0
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)
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await sock1.processPacket(responseAck)
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await waitUntil(proc (): bool = sock1.isConnected())
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check:
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sock1.isConnected()
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(sock1, initialPacket)
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template connectOutGoingSocketWithIncoming*(
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initialRemoteSeq: uint16,
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outgoingQueue: AsyncQueue[Packet],
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incomingQueue: AsyncQueue[Packet],
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remoteReceiveBuffer: uint32 = testBufferSize,
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cfg: SocketConfig = SocketConfig.init()): (UtpSocket[TransportAddress], UtpSocket[TransportAddress]) =
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let outgoingSocket = newOutgoingSocket[TransportAddress](testAddress, initTestSnd(outgoingQueue), cfg, defaultRcvOutgoingId, rng[])
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asyncSpawn outgoingSocket.startOutgoingSocket()
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let initialPacket = await outgoingQueue.get()
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check:
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initialPacket.header.pType == ST_SYN
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let incomingSocket = newIncomingSocket[TransportAddress](
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testAddress,
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initTestSnd(incomingQueue),
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cfg,
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initialPacket.header.connectionId,
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initialPacket.header.seqNr,
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rng[]
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)
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incomingSocket.startIncomingSocket()
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let responseAck = await incomingQueue.get()
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await outgoingSocket.processPacket(responseAck)
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await waitUntil(proc (): bool = outgoingSocket.isConnected())
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check:
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outgoingSocket.isConnected()
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(outgoingSocket, incomingSocket)
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proc generateDataPackets*(
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numberOfPackets: uint16,
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initialSeqNr: uint16,
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connectionId: uint16,
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ackNr: uint16,
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rng: var HmacDrbgContext): seq[Packet] =
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let packetSize = 100
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var packets = newSeq[Packet]()
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var i = 0'u16
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while i < numberOfPackets:
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let packet = dataPacket(
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initialSeqNr + i,
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connectionId,
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ackNr,
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testBufferSize,
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rng.generateBytes(packetSize),
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0
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)
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packets.add(packet)
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inc i
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packets
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proc initTestSnd*(q: AsyncQueue[Packet]): SendCallback[TransportAddress]=
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return (
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proc (to: TransportAddress, bytes: seq[byte]): Future[void] =
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let p = decodePacket(bytes).get()
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q.addLast(p)
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)
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