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Add methods to queue events without handler existence check

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Added ConnectionEventFast() and QueueEventFast() methods to avoid
redundant event handler existence checks.

It's common practice for caller to already check for event handler
existence before doing all the work of constructing the arguments, so
it's desirable to not have to check for existence again.

E.g. going through ConnectionEvent() means 3 existence checks:
one you do yourself before calling it, one in ConnectionEvent(), and then
another in QueueEvent().

The existence check itself can be more than a few operations sometimes
as it needs to check a few flags that determine if it's enabled, has
a local body, or has any remote receivers in the old comm. system or
has been flagged as something to publish in the new comm. system.
This commit is contained in:
Jon Siwek 2019-04-11 20:23:49 -07:00
parent 8bc65f09ec
commit b6862c5c59
72 changed files with 771 additions and 524 deletions
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23
src/main.cc
View file

@ -340,7 +340,7 @@ void terminate_bro()
EventHandlerPtr bro_done = internal_handler("bro_done");
if ( bro_done )
mgr.QueueEvent(bro_done, val_list{});
mgr.QueueEventFast(bro_done, val_list{});
timer_mgr->Expire();
mgr.Drain();
@ -1138,7 +1138,7 @@ int main(int argc, char** argv)
EventHandlerPtr bro_init = internal_handler("bro_init");
if ( bro_init )
mgr.QueueEvent(bro_init, val_list{});
mgr.QueueEventFast(bro_init, val_list{});
EventRegistry::string_list* dead_handlers =
event_registry->UnusedHandlers();
@ -1184,16 +1184,19 @@ int main(int argc, char** argv)
if ( override_ignore_checksums )
ignore_checksums = 1;
// Queue events reporting loaded scripts.
for ( std::list<ScannedFile>::iterator i = files_scanned.begin(); i != files_scanned.end(); i++ )
if ( bro_script_loaded )
{
if ( i->skipped )
continue;
// Queue events reporting loaded scripts.
for ( std::list<ScannedFile>::iterator i = files_scanned.begin(); i != files_scanned.end(); i++ )
{
if ( i->skipped )
continue;
mgr.QueueEvent(bro_script_loaded, {
new StringVal(i->name.c_str()),
val_mgr->GetCount(i->include_level),
});
mgr.QueueEventFast(bro_script_loaded, {
new StringVal(i->name.c_str()),
val_mgr->GetCount(i->include_level),
});
}
}
reporter->ReportViaEvents(true);