Hi David, You can certainly pass a handler as a parameter to an another element. This is well documented in the handlerCall reference in http://www.read.cs.ucla.edu/click/doxygen/classHandlerCall.html. Look for the HandlerCall Objects section. An example is given how to parse and call a handler.
Regards, Peter Peter De Cleyn IBBT - PATS research group Dept. of Mathematics and Computer Sciences University of Antwerp Campus Middelheim, G3.26 Middelheimlaan 1 B-2020 Antwerpen, Belgium Phone: +32 (0)3 265.33.64 Fax: +32 (0)3 265.37.77 Web: www.pats.ua.ac.be/peter.decleyn On Fri, Aug 7, 2009 at 2:15 PM, david johnson <[email protected] > wrote: > Hi > > I've got the following example code in which I'm continuously scanning > for beacons and storing the results in bs.scan. I then want to send the > results of the scan to other nodes in the network when I get a certain > request message. > > To do this I need to access the BeaconScanner handler "scan". I'm new to > click and maybe I'm breaking some fundamental rule in a click config > script but is it possible to pass an element handler as a parameter to > another element. > > I need to do it at this point in the code: > 25 -> send_scan_results(### pass bs.scan handler to element ###) > > Thanks > David > > ========================================= > > 1 control :: ControlSocket("TCP", 7777); > 2 > 3 rates :: AvailableRates(DEFAULT 2 4 11 22); > 4 > 5 FromDevice(ath0, PROMISC true) > 6 -> RadiotapDecap() > 7 -> c1 :: Counter > 8 -> wifi_cl :: Classifier(0/00%0c, /mgt > 9 0/08%0c, /data); > 10 > 11 wifi_cl [0] -> Classifier(0/80%f0) > 12 -> c2 :: Counter > 13 -> bs :: BeaconScanner() > 14 -> Discard; > 15 > 16 wifi_cl [1] > 17 -> WifiDecap() > 18 -> cognitive :: -> Classifier(//some String 1, > 19 // Some String 2, > 20 // Some String 3, > 21 ); > 22 > 23 // Respond to Get beacons stored in node > 24 cognitive [0] > 25 -> send_scan_results(### pass bs.scan handler to element ###) > 26 -> q; > 27 > 28 > 29 q :: Queue(10) > 30 -> wep_encap :: WepEncap(ACTIVE false) > 31 -> set_rate :: SetTXRate(2) > 32 -> rate :: ProbeTXRate(OFFSET 4, > 33 THRESHOLD 0, > 34 WINDOW 10000, > 35 RT rates) > 36 -> SetTXPower(63) > 37 -> extra_encap :: ExtraEncap() > 38 -> to_dev :: ToDevice (ath0); > > > _______________________________________________ > click mailing list > [email protected] > https://amsterdam.lcs.mit.edu/mailman/listinfo/click > _______________________________________________ click mailing list [email protected] https://amsterdam.lcs.mit.edu/mailman/listinfo/click
