64 lines
2.2 KiB
Nim
64 lines
2.2 KiB
Nim
## Nim-LibP2P
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## Copyright (c) 2018 Status Research & Development GmbH
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## Licensed under either of
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## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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## * MIT license ([LICENSE-MIT](LICENSE-MIT))
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## at your option.
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## This file may not be copied, modified, or distributed except according to
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## those terms.
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import chronos
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import transport, wire, connection, multiaddress, connection, multicodec
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type TcpTransport* = ref object of Transport
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fd*: AsyncFD
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server*: StreamServer
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proc connHandler(server: StreamServer,
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client: StreamTransport): Future[Connection] {.gcsafe, async.} =
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let t: TcpTransport = cast[TcpTransport](server.udata)
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let conn: Connection = newConnection(newAsyncStreamReader(client),
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newAsyncStreamWriter(client))
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let connHolder: ConnHolder = ConnHolder(connection: conn,
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connFuture: t.handler(conn))
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t.connections.add(connHolder)
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result = conn
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proc connCb(server: StreamServer,
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client: StreamTransport) {.gcsafe, async.} =
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discard connHandler(server, client)
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method init*(t: TcpTransport) =
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t.multicodec = multiCodec("tcp")
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method close*(t: TcpTransport): Future[void] {.async.} =
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## start the transport
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result = t.server.closeWait()
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method listen*(t: TcpTransport): Future[void] {.async.} =
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let listenFuture: Future[void] = newFuture[void]()
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result = listenFuture
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proc initTransport(server: StreamServer, fd: AsyncFD): StreamTransport {.gcsafe.} =
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t.server = server
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t.fd = fd
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listenFuture.complete()
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## listen on the transport
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let server = createStreamServer(t.ma,
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connCb,
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{},
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t,
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asyncInvalidSocket,
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100,
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DefaultStreamBufferSize,
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nil,
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initTransport)
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server.start()
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method dial*(t: TcpTransport,
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address: MultiAddress): Future[Connection] {.async.} =
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## dial a peer
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let client: StreamTransport = await connect(address)
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result = await connHandler(t.server, client)
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