Dv::Cgi::formdata() retrieves form data from a string, which may be in url-encoded or multipart-form format. The form data are stored in a Dv::Util::Props parameter object.
The Dv::Cgi::HttpHeader class represents the header lines of a cgi application's response. It provides functions to ensure that the response is not cached, to set the content type, the location etc.
The Dv::Cgi::SessionServer class supports persistent data for cgi applications by automatically starting (upon the first call) a (unix socket) server to represent the running session. Further calls to the program transparently contact this server for processing.