Check Whether a Socket Is Writable

See more Socket/SSL/TLS Examples

Demonstrates Socket.CheckWriteable, which waits for the connected socket to become writable. It returns 1 if writable, 0 if it did not become writable before the timeout, or -1 on error.

integer li_rc
integer li_Success
oleobject loo_Socket
integer li_BTls
integer li_MaxWaitMs
integer li_Writable

li_Success = 0

loo_Socket = create oleobject
li_rc = loo_Socket.ConnectToNewObject("Chilkat.Socket")
if li_rc < 0 then
    destroy loo_Socket
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  Connect to the server using TLS.
li_BTls = 1
li_MaxWaitMs = 5000
li_Success = loo_Socket.Connect("example.com",5000,li_BTls,li_MaxWaitMs)
if li_Success = 0 then
    Write-Debug loo_Socket.LastErrorText
    destroy loo_Socket
    return
end if

//  Wait up to 5 seconds for the socket to become writable.  Returns 1 if writable, 0 if it did not
//  become writable before the timeout, or -1 on error.
li_Writable = loo_Socket.CheckWriteable(5000)
if li_Writable < 0 then
    Write-Debug loo_Socket.LastErrorText
    destroy loo_Socket
    return
end if

if li_Writable <> 1 then
    Write-Debug "The socket did not become writable before the timeout."
    destroy loo_Socket
    return
end if

Write-Debug "The socket is writable."


destroy loo_Socket