# -*- encoding: binary -*-
# Copyright (C) 2016 all contributors <yahns-public@yhbt.net>
# License: GPL-3.0+ <https://www.gnu.org/licenses/gpl-3.0.txt>
# frozen_string_literal: true
require_relative 'wbuf'

# This is only used for "proxy_buffering: false"
class Yahns::WbufLite < Yahns::Wbuf # :nodoc:
  attr_reader :busy

  def initialize(req_res)
    super(nil, :ignore)
    @req_res = req_res
  end

  def wbuf_write(client, buf)
    super
  rescue
    @req_res = @req_res.close if @req_res
    raise
  end

  def wbuf_flush(client)
    super
  rescue
    @req_res = @req_res.close if @req_res
    raise
  end

  # called by Yahns::HttpClient#step_write
  def wbuf_close(client)
    wbuf_abort

    # resume reading when @blocked is empty
    if @req_res
      client.hijack_cleanup
      Thread.current[:yahns_queue].queue_mod(@req_res, Yahns::Queue::QEV_RD)
    end
    :ignore
  rescue
    @req_res = @req_res.close if @req_res
    raise
  end
end