Lianja

Receive a 32-bit Integer from a Socket

Demonstrates Socket.ReceiveInt32, which reads exactly four bytes as a signed 32-bit integer and stores the result in the ReceivedInt property. Byte order is selectable.

Background. Fixed-size integers and length prefixes are common building blocks for application-defined binary protocols. Byte order is selectable, with big-endian being network byte order.

Chilkat Lianja Downloads

Download Chilkat for Lianja

Lianja

llSuccess = .F.

loSocket = createobject("CkSocket")

//  Connect to the server using TLS.
llBTls = .T.
lnMaxWaitMs = 5000
llSuccess = loSocket.Connect("example.com",5000,llBTls,lnMaxWaitMs)
if (llSuccess = .F.) then
    ? loSocket.LastErrorText
    release loSocket
    return
endif

//  Read exactly four bytes as a signed 32-bit integer and store the result in the ReceivedInt
//  property.  The argument selects byte order (.T. = big-endian, network byte order).
llBBigEndian = .T.
llSuccess = loSocket.ReceiveInt32(llBBigEndian)
if (llSuccess = .F.) then
    ? loSocket.LastErrorText
    release loSocket
    return
endif

? "Received 32-bit integer: " + str(loSocket.ReceivedInt)


release loSocket