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thread.c: avoid busy looping on rb_thread_fd_close

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We no longer use it this function, but extensions do, and
we need to ensure it continues to work for them.

* thread.c (rb_thread_fd_close): schedule other threads in loop
* ext/-test-/thread_fd_close/thread_fd_close.c: new file
* ext/-test-/thread_fd_close/depend: ditto
* ext/-test-/thread_fd_close/extconf.rb: ditto
* test/-ext-/thread_fd_close/test_thread_fd_close.rb: new test

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59030 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
normal 2017-06-07 00:32:02 +00:00
parent 349495471e
commit 27b8ef7ff7
5 changed files with 56 additions and 1 deletions
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23
test/-ext-/thread_fd_close/test_thread_fd_close.rb Normal file
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# frozen_string_literal: true
require 'test/unit'
require '-test-/thread_fd_close'
require 'io/wait'
class TestThreadFdClose < Test::Unit::TestCase
def test_thread_fd_close
IO.pipe do |r, w|
th = Thread.new do
begin
r.read(4)
ensure
w.syswrite('done')
end
end
Thread.pass until th.stop?
IO.thread_fd_close(r.fileno)
assert_equal 'done', r.read(4)
assert_raise(IOError) { th.join }
end
end
end