Thanks for your comments. Until I get the book, can you tell if a module's hook function can execute in the same thread as the CGI application that serves the request?
Also, I am unable to find the apache2 API for building modules. I found some documentation for developers on the apache2 website, but the link for "Autogenerated Apache 2 code documentation" is not working. Thank you, Andrej -- Andrej van der Zee 2-40-19 Koenji-minami Suginami-ku, Tokyo 166-0003 JAPAN Mobile: 0031-(0)80-65251092 Phone/Fax: 0031-(0)3-3318-3155