Force cfunc in queue_work's work_cb and add test for it. #32
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This changes is to make API
UV.queue_work
more safer.Since
uv_work_cb
would be always runned on separate thread as mruby runs, running block on it will break running context of mruby.On new mruby-uv
uv_work_cb
, it can only run cfunc proc that can run separately withmrb_state
that is passed toUV.queue_work
as argument.(The cfunc would be called with arguments
NULL, mrb_nil_value()
and returned value would be discarded.)And the block passed to
UV.queue_work
would be runned onuv_after_work_cb
.(See the test codes for detail. It will run summing of 0 to 99 on other thread.)