nim-libp2p/libp2p/connection.nim

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## 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 peerinfo, multiaddress, readerwriter, peerinfo
const DefaultReadSize = 1024
type
Connection* = ref object of ReadWrite
peerInfo*: PeerInfo
stream: ReadWrite
proc newConnection*(stream: ReadWrite): Connection =
## create a new Connection for the specified async reader/writer
new result
result.stream = stream
method read*(s: Connection, n = -1): Future[seq[byte]] {.async.} =
result = await s.stream.read(n)
method readExactly*(s: Connection, pbytes: pointer, nbytes: int): Future[void] {.async.} =
result = s.stream.readExactly(pbytes, nbytes)
method readLine*(s: Connection, limit = 0, sep = "\r\n"): Future[string] {.async.} =
result = await s.stream.readLine(limit, sep)
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method readOnce*(s: Connection, pbytes: pointer, nbytes: int): Future[int] {.async.} =
result = await s.stream.readOnce(pbytes, nbytes)
method readUntil*(s: Connection, pbytes: pointer, nbytes: int, sep: seq[byte]): Future[int] {.async.} =
result = await s.stream.readUntil(pbytes, nbytes, sep)
method write*(s: Connection, pbytes: pointer, nbytes: int) {.async.} =
result = s.stream.write(pbytes, nbytes)
method write*(s: Connection, msg: string, msglen = -1) {.async.} =
result = s.stream.write(msg, msglen)
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method write*(s: Connection, msg: seq[byte], msglen = -1) {.async.} =
result = s.stream.write(msg, msglen)
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method close*(s: Connection) {.async.} =
result = s.stream.close()
method getPeerInfo* (c: Connection): Future[PeerInfo] {.base, async.} =
## get up to date peer info
## TODO: implement PeerInfo refresh over identify
discard
method getObservedAddrs(c: Connection): Future[seq[MultiAddress]] {.base, async.} =
## get resolved multiaddresses for the connection
discard