An Event Handler which Logs Events to Disk
log_mf_h is a
gen_event handler module which
can be installed in any
gen_event process. It logs onto disk all events
which are sent to an event manager. Each event is written as a
binary which makes the logging very fast. However, a tool such as the
Report Browser (
rb) must be used in order to read the files. The events are written to multiple files. When all files have been used, the first one is re-used and overwritten. The directory location, the number of files, and the size of each file are configurable. The directory will include one file called
1, 2, .....
Term to be sent to gen_event:add_handler/3.
init(Dir, MaxBytes, MaxFiles) -> Args
init(Dir, MaxBytes, MaxFiles, Pred) -> Args
Initiates the event handler. This function returns
, which should be used in a call to
gen_event:add_handler(EventMgr, log_mf_h, .
specifies which directory to use for the log
specifies the size of each individual
specifies how many files are
is a predicate function used to filter the
events. If no predicate function is specified, all events are