Pi3Web is a multithreaded, highly configurable HTTP 1.0/1.1 Web server written in C++ available on Windows and Posix platforms. Pi3Web supports among other things CGI, FCGI, Win-CGI, SSI, directory indexing, embedded perl, PHP4, Servlets and SSL.
Pi3Web is to be easily portable to multiple platforms and processor architectures. It is built using the PiAPI platform abstraction library. This library provides a standard interface to files, shared libraries, threads and synchronization objects.
Pi3Web configuration files outline a schema which dictates how loadable classes and objects are linked and nested together. The configuration files not only specify which loadable classes (CGI, FastCGI, SSI etc.) are executed to handle a request allow individual handlers or groups of handlers to be conditional on various aspects of the request, network connection or resource requested. By this mechanism Pi3Web configuration files give some of the flexibility of a simple programming language.