Socket Accept/Connection Question/Problem

[Alex Tweedly]

Dave wrote:
>
> All I want to do is to know if a Client successfully connected to a 
> Server, surely this is what the openSocket command is for.
>
Not quite. The 'open socket' command does try to create the connection, 
but it will not (immediately) tell you whether or not it is successful 
in this attempt. From the Rev docs,
" The handler continues executing while the connection is being 
established. If you use the write to socket command while the connection 
is opening, the data is buffered and is sent to the host as soon as the 
connection is made."

i.e. you will not get an indication of success or failure immediately.
> Surely the:
>
>   open socket mySocketAddress with message "ClientSocketOpen"
>
> Statement should call "ClientSocketOpen" if the Server accepted the 
> connection or call "socketError" or "socketTimeout" if there was an 
> error? e.g. the Server closed the socket?
Be wary of that simple word "call". the "open socket" statement will not 
"call" ClientSocketOpen even in the successful case - instead it will 
result in a message being sent SOME TIME LATER to that handler. And in 
the failure  case, it will  cause a message to either socketError or 
socketTimeOut  again, SOME TIME LATER.

Using the code we've discussed on the server, what you will get on the 
client is a socketClosed message. The server will accept the connection, 
which should result in a successful "ClientSocketOpen' and then very 
quickly close it causing a subsequent 'socketClosed' message.