Request-Reply Worker

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#r "fszmq.dll"
open fszmq
open System.Threading

// helpers to convert between strings and frames
let encode = string >> System.Text.Encoding.ASCII.GetBytes
let decode = System.Text.Encoding.ASCII.GetString

let main () =
  use context = new Context ()

  // socket to talk clients
  use responder = Context.rep context
  Socket.connect responder "tcp://localhost:5560"

  while true do
    // wait for next request from client
    let string = decode (Socket.recv responder)
    printfn "Received request: [%s]" string

    // do some 'work'
    Thread.Sleep 1

    // send reply back to client
    Socket.send responder (encode "World")

  0 // return code

module docs

module PATH

from docs

val hijack : unit -> unit

Full name: docs.PATH.hijack

namespace fszmq

namespace System

namespace System.Threading

val encode : (obj -> byte [])

Full name: Rrworker.encode

Multiple items
val string : value:'T -> string

Full name: Microsoft.FSharp.Core.Operators.string

--------------------
type string = System.String

Full name: Microsoft.FSharp.Core.string

namespace System.Text

type Encoding =
  member BodyName : string
  member Clone : unit -> obj
  member CodePage : int
  member DecoderFallback : DecoderFallback with get, set
  member EncoderFallback : EncoderFallback with get, set
  member EncodingName : string
  member Equals : value:obj -> bool
  member GetByteCount : chars:char[] -> int + 3 overloads
  member GetBytes : chars:char[] -> byte[] + 5 overloads
  member GetCharCount : bytes:byte[] -> int + 2 overloads
  ...

Full name: System.Text.Encoding

property System.Text.Encoding.ASCII: System.Text.Encoding

System.Text.Encoding.GetBytes(s: string) : byte []
System.Text.Encoding.GetBytes(chars: char []) : byte []
System.Text.Encoding.GetBytes(chars: char [], index: int, count: int) : byte []
System.Text.Encoding.GetBytes(chars: nativeptr<char>, charCount: int, bytes: nativeptr<byte>, byteCount: int) : int
System.Text.Encoding.GetBytes(s: string, charIndex: int, charCount: int, bytes: byte [], byteIndex: int) : int
System.Text.Encoding.GetBytes(chars: char [], charIndex: int, charCount: int, bytes: byte [], byteIndex: int) : int

val decode : (byte [] -> string)

Full name: Rrworker.decode

System.Text.Encoding.GetString(bytes: byte []) : string
System.Text.Encoding.GetString(bytes: byte [], index: int, count: int) : string

val main : unit -> int

Full name: Rrworker.main

val context : System.IDisposable

val responder : System.IDisposable

Multiple items
val string : string

--------------------
type string = System.String

Full name: Microsoft.FSharp.Core.string

val printfn : format:Printf.TextWriterFormat<'T> -> 'T

Full name: Microsoft.FSharp.Core.ExtraTopLevelOperators.printfn

Multiple items
type Thread =
  inherit CriticalFinalizerObject
  new : start:ThreadStart -> Thread + 3 overloads
  member Abort : unit -> unit + 1 overload
  member ApartmentState : ApartmentState with get, set
  member CurrentCulture : CultureInfo with get, set
  member CurrentUICulture : CultureInfo with get, set
  member DisableComObjectEagerCleanup : unit -> unit
  member ExecutionContext : ExecutionContext
  member GetApartmentState : unit -> ApartmentState
  member GetCompressedStack : unit -> CompressedStack
  member GetHashCode : unit -> int
  ...

Full name: System.Threading.Thread

--------------------
Thread(start: ThreadStart) : unit
Thread(start: ParameterizedThreadStart) : unit
Thread(start: ThreadStart, maxStackSize: int) : unit
Thread(start: ParameterizedThreadStart, maxStackSize: int) : unit

Thread.Sleep(timeout: System.TimeSpan) : unit
Thread.Sleep(millisecondsTimeout: int) : unit

val release : unit -> unit

Full name: docs.PATH.release