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cluster/Backend: Add name and lookup component tag

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This adds two new accessors on Backend, Name() and Tag() that can
be used for introspection of a Backend instance.
This commit is contained in:
Arne Welzel 2025-04-10 18:38:03 +02:00
parent 214629e054
commit 3946856f06
5 changed files with 37 additions and 12 deletions
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20
src/cluster/Backend.cc
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@ -10,6 +10,7 @@
#include "zeek/Func.h"
#include "zeek/Reporter.h"
#include "zeek/Type.h"
#include "zeek/cluster/Manager.h"
#include "zeek/cluster/OnLoop.h"
#include "zeek/cluster/Serializer.h"
#include "zeek/logging/Manager.h"
@ -69,9 +70,16 @@ std::optional<zeek::Args> detail::check_args(const zeek::FuncValPtr& handler, ze
return result;
}
Backend::Backend(std::unique_ptr<EventSerializer> es, std::unique_ptr<LogSerializer> ls,
Backend::Backend(std::string_view arg_name, std::unique_ptr<EventSerializer> es, std::unique_ptr<LogSerializer> ls,
std::unique_ptr<detail::EventHandlingStrategy> ehs)
: event_serializer(std::move(es)), log_serializer(std::move(ls)), event_handling_strategy(std::move(ehs)) {}
: name(arg_name),
event_serializer(std::move(es)),
log_serializer(std::move(ls)),
event_handling_strategy(std::move(ehs)) {
tag = zeek::cluster::manager->Backends().GetComponentTag(name);
if ( ! tag )
reporter->InternalError("unknown cluster backend name '%s'; mismatch with tag component?", name.c_str());
}
std::optional<detail::Event> Backend::MakeClusterEvent(FuncValPtr handler, ArgsSpan args, double timestamp) const {
auto checked_args = detail::check_args(handler, args);
@ -158,10 +166,10 @@ bool ThreadedBackend::ProcessBackendMessage(int tag, detail::byte_buffer_span pa
return DoProcessBackendMessage(tag, payload);
}
ThreadedBackend::ThreadedBackend(std::unique_ptr<EventSerializer> es, std::unique_ptr<LogSerializer> ls,
std::unique_ptr<detail::EventHandlingStrategy> ehs)
: Backend(std::move(es), std::move(ls), std::move(ehs)) {
onloop = new zeek::detail::OnLoopProcess<ThreadedBackend, QueueMessage>(this, "ThreadedBackend");
ThreadedBackend::ThreadedBackend(std::string_view name, std::unique_ptr<EventSerializer> es,
std::unique_ptr<LogSerializer> ls, std::unique_ptr<detail::EventHandlingStrategy> ehs)
: Backend(name, std::move(es), std::move(ls), std::move(ehs)) {
onloop = new zeek::detail::OnLoopProcess<ThreadedBackend, QueueMessage>(this, Name());
onloop->Register(true); // Register as don't count first
}