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zlib and bignum both contain unblocking functions which are async-signal-safe and do not require spawning additional threads. We can execute those functions directly in signal handlers without incurring overhead of extra threads, so provide C-API users the ability to deal with that. Other C-API users may have similar need. This flexible API can supercede existing uses of rb_thread_call_without_gvl and rb_thread_call_without_gvl2 by introducing a flags argument to control behavior. Note: this API is NOT finalized. It needs approval from other committers. I prefer shorter name than previous rb_thread_call_without_gvl* functions because my eyes requires big fonts. [Bug #15499] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66712 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
20 lines
634 B
Ruby
20 lines
634 B
Ruby
# frozen_string_literal: true
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class TestUbfAsyncSafe < Test::Unit::TestCase
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def test_ubf_async_safe
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skip 'need fork for single-threaded test' unless Process.respond_to?(:fork)
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IO.pipe do |r, w|
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pid = fork do
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require '-test-/gvl/call_without_gvl'
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r.close
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trap(:INT) { exit!(0) }
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Thread.current.__ubf_async_safe__(w.fileno)
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exit!(1)
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end
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w.close
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assert IO.select([r], nil, nil, 30), 'child did not become ready'
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Process.kill(:INT, pid)
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_, st = Process.waitpid2(pid)
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assert_predicate st, :success?, ':INT signal triggered exit'
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end
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end
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end
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