On Tue, Mar 18, 2003 at 04:45:09PM -0800, Justin Erenkrantz wrote: > --On Friday, March 14, 2003 12:50 AM -0800 Jim Carlson <[EMAIL PROTECTED]> > wrote: > > > Howdy, > > I have a question in the same vein as my last post. Can I rely on > > ap_get_brigade(mode=AP_MODE_READBYTES, len=X) to return a brigade of length > > no greater than X? It would appear not, which means I need to be prepared > > to set aside extra bytes... But I thought this was exactly what the > > supplying filter was supposed to do! Confirmation requested. > > A filter could hypothetically ignore AP_MODE_READBYTES's len parameter and > return more. But, none of the current filters in our core do this - they will > return at most X bytes. I believe we take the position if a filter returns > more than X in this case, it is broken. So, it should be a good assumption to > make. -- justin
Yes, it would be considered broken. The higher-level filter knows the boundaries, and how much to ask for (or not). The lower-level filters do not and cannot have the knowledge that the higher/application filters have. Thus, the rule is that a filter never returns more than asked. [ there are ways to change that, but it isn't in the architecture now ] Cheers, -g -- Greg Stein, http://www.lyra.org/
