wire.bend source

wire.bend on the hub · documented module

# Byte-exact TCP, UDP, and TLS sockets.import Base# Socket IO on octets: one Char per byte (0..255). Base's TCP/UDP effects# decode UTF-8, which breaks byte counts and binary protocols.# ms arguments are deadlines in milliseconds (0: none); a miss is ETIMEDOUT.#   import ./wire.bend as Wire# TCP connect to an IPv4 address, with a deadline.def connect(host: String, port: U32, ms: U32) ->  IO(Result<&1, &1, U32 & String, Socket>):  import "./effs/wire.c"  import "./effs/wire.js"def recv(sock: Socket, max: U32, ms: U32) ->  IO(Socket & Result<&1, &1, U32 & String, String>):  import "./effs/wire.c"  import "./effs/wire.js"def send(sock: Socket, data: String) ->  IO(Socket & Result<&1, &1, U32 & String, Unit>):  import "./effs/wire.c"  import "./effs/wire.js"def recv_from(sock: Socket, max: U32, ms: U32) ->  IO(Socket & Result<&1, &1, U32 & String, String & U32 & String>):  import "./effs/wire.c"  import "./effs/wire.js"def send_to(sock: Socket, host: String, port: U32, data: String) ->  IO(Socket & Result<&1, &1, U32 & String, Unit>):  import "./effs/wire.c"  import "./effs/wire.js"# TLS over a connected TCP socket (OpenSSL 3, loaded at run time; BEND_LIBSSL# overrides its path). The certificate chain and host name are always checked.def tls.connect(sock: Socket, host: String, ms: U32) ->  IO(Socket & Result<&1, &1, U32 & String, Unit>):  import "./effs/wire.c"  import "./effs/wire.js"def tls.send(sock: Socket, data: String) ->  IO(Socket & Result<&1, &1, U32 & String, Unit>):  import "./effs/wire.c"  import "./effs/wire.js"# "" once the peer sends close_notify. A bare EOF is an error.def tls.recv(sock: Socket, max: U32, ms: U32) ->  IO(Socket & Result<&1, &1, U32 & String, String>):  import "./effs/wire.c"  import "./effs/wire.js"# Ends the TLS session and closes the socket.def tls.close(sock: Socket) -> IO(Unit):  import "./effs/wire.c"  import "./effs/wire.js"# The .words forms move (len, words): bytes packed four to a U32, laid out as# bytes/bytes.bend packs them, so no String cell is made per byte.def recv.words(sock: Socket, max: U32, ms: U32) ->  IO(Socket & Result<&1, &1, U32 & String, U32 & Array<U32>>):  import "./effs/wire.c"  import "./effs/wire.js"# len past the end of words fails with EINVAL.def send.words(sock: Socket, len: U32, words: Array<U32>) ->  IO(Socket & Result<&1, &1, U32 & String, Unit>):  import "./effs/wire.c"  import "./effs/wire.js"# len 0 once the peer sends close_notify.def tls.recv.words(sock: Socket, max: U32, ms: U32) ->  IO(Socket & Result<&1, &1, U32 & String, U32 & Array<U32>>):  import "./effs/wire.c"  import "./effs/wire.js"def tls.send.words(sock: Socket, len: U32, words: Array<U32>) ->  IO(Socket & Result<&1, &1, U32 & String, Unit>):  import "./effs/wire.c"  import "./effs/wire.js"