Module: Libuv::Listener::ClassMethods

Defined in:
lib/libuv/mixins/listener.rb

Instance Method Summary collapse

Instance Method Details

#callback_funcs ⇒ Object 



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# File 'lib/libuv/mixins/listener.rb', line 37

def callback_funcs
    @callback_funcs
end

#callback_lookup ⇒ Object

Provide accessor methods to the class level instance variables



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# File 'lib/libuv/mixins/listener.rb', line 33

def callback_lookup
    @callback_lookup
end

#default_lookup(req, *args) ⇒ Object

This function is used to work out the instance the callback is for



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# File 'lib/libuv/mixins/listener.rb', line 43

def default_lookup(req, *args)
    req.address
end

#define_callback(function:, params: [:pointer], ret_val: :void, lookup: :default_lookup) ⇒ Object 



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# File 'lib/libuv/mixins/listener.rb', line 18

def define_callback(function:, params: [:pointer], ret_val: :void, lookup: :default_lookup)
    @callback_funcs[function] = FFI::Function.new(ret_val, params) do |*args|
        dispatch_callback(function, lookup, args)
    end
end

#dispatch_callback(func_name, lookup, args) ⇒ Object 



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# File 'lib/libuv/mixins/listener.rb', line 12

def dispatch_callback(func_name, lookup, args)
    instance_id = __send__(lookup, *args)
    inst = @callback_lookup[instance_id]
    inst.__send__(func_name, *args) if inst
end

#inherited(subclass) ⇒ Object

Much like include to support inheritance properly We keep existing callbacks and inherit the lookup (as this will never clash)



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# File 'lib/libuv/mixins/listener.rb', line 26

def inherited(subclass)
    subclass.instance_variable_set(:@callback_funcs, {}.merge(@callback_funcs))
    subclass.instance_variable_set(:@callback_lookup, @callback_lookup)
end