CGIUTL new opcode CGIOP_GETREQ (10) is used to support FastCGI.
xcall CGIUTL, CGIOP_GETREQ, status
where
status is a signed numeric variable that will return 0 if a request is available to process, or -1 if not, in which case the application should terminate.
For FastCGI mode requests after the first one for the instance of the application server, this call will sleep until a request is available or the web server tells us to exit, or an error occurs.
