Sha256: 517be6dc0590fcccf9b7465412949c5412dcc369820ee263b06b5d4875bb7946
Contents?: true
Size: 1.55 KB
Versions: 9
Compression:
Stored size: 1.55 KB
Contents
# frozen_string_literal: true
module Karafka
module Core
# Patches to dependencies and components
module Patches
# Patches to rdkafka
module Rdkafka
# Extends `Rdkafka::Bindings` with some extra methods and updates callbacks that we intend
# to work with in a bit different way than rdkafka itself
module Bindings
class << self
# Add extra methods that we need
# @param mod [::Rdkafka::Bindings] rdkafka bindings module
def included(mod)
# Default rdkafka setup for errors doest not propagate client details, thus it always
# publishes all the stuff for all rdkafka instances. We change that by providing
# function that fetches the instance name, allowing us to have better notifications
mod.send(:remove_const, :ErrorCallback)
mod.const_set(:ErrorCallback, build_error_callback)
end
# @return [FFI::Function] overwritten callback function
def build_error_callback
FFI::Function.new(
:void, %i[pointer int string pointer]
) do |client_prr, err_code, reason, _opaque|
return nil unless ::Rdkafka::Config.error_callback
name = ::Rdkafka::Bindings.rd_kafka_name(client_prr)
error = ::Rdkafka::RdkafkaError.new(err_code, broker_message: reason)
::Rdkafka::Config.error_callback.call(name, error)
end
end
end
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems