Changes between Version 38 and Version 39 of ModParrotArchitecture

Timestamp:

12/01/08 16:01:24 (13 years ago)

Author:

jhorwitz

Comment:

--

ModParrotArchitecture

@@ -162 +162 @@
 Metahandlers are HLL-specific hooks that implement the semantics of that particular HLL module.  For example, mod_perl6 request phase handlers expect to receive an Apache::RequestRec object as the first argument.  The mod_perl6 metahandlers would be responsible for making sure that happens.  Metahandlers are also responsible for running the actual HLL handler code and returning an appropriate status.
 
+Since mod_parrot calls the metahandlers and knows nothing about the semantics of the underlying HLL, metahandlers must have a consistent signature that is independent of the HLL.  They do this by accepting a single argument: the context.  The context contains all of the Apache data structures in scope for a particular phase, so the metahandler can pick and choose the structurs it needs from the context.
+
 Apache cannot call HLL code directly, so mod_parrot registers generic hook functions that call HLL code on its behalf.  These functions are in {{{src/mod_parrot.c}}} and have a {{{modparrot_meta_}}} prefix.