Wait for a Socket to Become Readable

See more Socket/SSL/TLS Examples

Demonstrates Socket.SelectForReading, which waits for read-ready activity on the socket, or on any contained socket when the object is a socket set. It returns 1 if ready, 0 on timeout, or -1 on error.

local chilkat = require("chilkat")

local socket = chilkat.Socket.new()

-- Connect to the server using TLS.
local bTls = true
local maxWaitMs = 5000
local success = socket:connect("example.com", 5000, bTls, maxWaitMs)
if not success then
    print(socket.last_error_text)
    return
end

-- Wait up to 5 seconds for read-ready activity on the socket (or, for a socket set, on any contained
-- socket).  Returns 1 if ready, 0 on timeout, or -1 on error.
local ready = socket:select_for_reading(5000)
if ready < 0 then
    print(socket.last_error_text)
    return
end

if ready ~= 1 then
    print("No data became available before the timeout.")
    return
end

print("The socket has data ready to read.")