Module: Hyperion::AsyncPg::ForkSafe::Hook

Defined in:
lib/hyperion/async_pg/fork_safe.rb

Overview

Prepended onto ‘Process.singleton_class` so we cooperate cleanly with other libraries that wrap `Process._fork` (notably `Async::ForkHandler` from the async gem, which uses the same technique). `super` chains through the next handler in the ancestor stack rather than rebinding to a snapshot of the C method, which avoided a self-recursing wrapper bug we hit when using `define_method` + `Method#call` (Async’s prepend dispatched ‘super` back to our singleton-class-defined wrapper, which called the captured Method, which dispatched `super` back into the wrapper).

Instance Method Summary collapse

Instance Method Details

#_fork(&block) ⇒ Object 



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# File 'lib/hyperion/async_pg/fork_safe.rb', line 56

def _fork(&block)
  result = super
  ForkSafe.reset_all_pools_in_child! if result.zero?
  result
end