nim-libp2p/libp2p/tcptransport.nim

50 lines
1.6 KiB
Nim

## Nim-LibP2P
## Copyright (c) 2018 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 chronos
import transport, wire, connection, multiaddress, connection, multicodec
type TcpTransport* = ref object of Transport
server*: StreamServer
proc connHandler(server: StreamServer,
client: StreamTransport): Future[Connection] {.gcsafe, async.} =
let t: TcpTransport = cast[TcpTransport](server.udata)
let conn: Connection = newConnection(server, client)
let connHolder: ConnHolder = ConnHolder(connection: conn,
connFuture: t.handler(conn))
t.connections.add(connHolder)
result = conn
proc connCb(server: StreamServer,
client: StreamTransport) {.gcsafe, async.} =
discard connHandler(server, client)
method init*(t: TcpTransport) =
t.multicodec = multiCodec("tcp")
method close*(t: TcpTransport): Future[void] {.async.} =
## start the transport
result = t.server.closeWait()
method listen*(t: TcpTransport): Future[void] {.async.} =
let listenFuture: Future[void] = newFuture[void]()
result = listenFuture
## listen on the transport
let server = createStreamServer(t.ma, connCb, {}, t)
t.server = server
server.start()
method dial*(t: TcpTransport,
address: MultiAddress): Future[Connection] {.async.} =
## dial a peer
let client: StreamTransport = await connect(address)
result = await connHandler(t.server, client)