Classic ASP

Wait for a Socket to Become Readable

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.

Background. A timeoutMs of 0 performs a nonblocking poll. With a socket set, this monitors many connections at once for readability.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

set socket = Server.CreateObject("Chilkat.Socket")

'  Connect to the server using TLS.
bTls = 1
maxWaitMs = 5000
success = socket.Connect("example.com",5000,bTls,maxWaitMs)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( socket.LastErrorText) & "</pre>"
    Response.End
End If

'  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.
ready = socket.SelectForReading(5000)
If (ready < 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( socket.LastErrorText) & "</pre>"
    Response.End
End If

If (ready <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( "No data became available before the timeout.") & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "The socket has data ready to read.") & "</pre>"

%>
</body>
</html>