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test/ruby/test_thread.rb (test_thread_timer_and_interrupt): add timeouts

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Trying to diagnose CI failures from i686-linux on Debian 7.

This also fixes a potential GC problem with Thread.start or
IO#read potentially closing the write-end of the pipe due
to allocation.

cf. http://www.rubyist.net/~akr/chkbuild/debian/ruby-trunk/log/20180805T080500Z.fail.html.gz

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64199 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
normal 2018-08-05 20:06:55 +00:00
parent d17c7ba352
commit 9f395f1120
1 changed files with 3 additions and 2 deletions
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5
test/ruby/test_thread.rb
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@ -952,15 +952,16 @@ _eom
def test_thread_timer_and_interrupt
bug5757 = '[ruby-dev:44985]'
pid = nil
cmd = 'Signal.trap(:INT, "DEFAULT"); r,=IO.pipe; Thread.start {Thread.pass until Thread.main.stop?; puts; STDOUT.flush}; r.read'
cmd = 'Signal.trap(:INT, "DEFAULT"); pipe=IO.pipe; Thread.start {Thread.pass until Thread.main.stop?; puts; STDOUT.flush}; pipe[0].read'
opt = {}
opt[:new_pgroup] = true if /mswin|mingw/ =~ RUBY_PLATFORM
s, t, _err = EnvUtil.invoke_ruby(['-e', cmd], "", true, true, opt) do |in_p, out_p, err_p, cpid|
assert IO.select([out_p], nil, nil, 10), 'subprocess not ready'
out_p.gets
pid = cpid
t0 = Time.now.to_f
Process.kill(:SIGINT, pid)
Process.wait(pid)
Timeout.timeout(10) { Process.wait(pid) }
t1 = Time.now.to_f
[$?, t1 - t0, err_p.read]
end