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Reduce the number of times IO is passed in send_io/recv_io test

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Since Linux 4.5, sendmsg(2) fails with ETOOMANYREFS if the number of
"in-flight" IOs, which has been sent by sendmsg(2) but has not yet
accepted by recvmsg(2), exceeds the RLIMIT_NOFILE resource limit.

20231025T090004Z.fail.html.gz
```
  1) Error:
TestSocket_UNIXSocket#test_fd_passing_race_condition:
Errno::ETOOMANYREFS: Too many references: cannot splice - sendmsg(2)
```

This change reduces the number of times of IO passing under 1024,
which is a default limit in many environments.
This commit is contained in:
Yusuke Endoh 2023-10-25 20:37:21 +09:00
parent de82439215
commit f26d53e905
1 changed files with 2 additions and 7 deletions
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9
test/socket/test_unix.rb
View file

@ -152,7 +152,7 @@ class TestSocket_UNIXSocket < Test::Unit::TestCase
lock = Thread::Mutex.new
nr = 0
x = 2
y = 1000
y = 400
begin
s1.send_io(nil)
rescue NotImplementedError
@ -167,12 +167,7 @@ class TestSocket_UNIXSocket < Test::Unit::TestCase
true
end
end
begin
(x * y).times { s1.send_io r1 }
rescue Errno::ETOOMANYREFS => e
# for arm64-neoverse-n1
omit e.message
end
(x * y).times { s1.send_io r1 }
assert_equal([true]*x, thrs.map { |t| t.value })
assert_equal x * y, nr
ensure