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IO::Socket::Async broken in 6.d.PREVIEW #6046

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p6rt opened this issue Feb 1, 2017 · 5 comments
Closed

IO::Socket::Async broken in 6.d.PREVIEW #6046

p6rt opened this issue Feb 1, 2017 · 5 comments
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@p6rt
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@p6rt p6rt commented Feb 1, 2017

Migrated from rt.perl.org#130692 (status was 'resolved')

Searchable as RT130692$

@p6rt
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@p6rt p6rt commented Feb 1, 2017

From jns@gellyfish.co.uk

With 6.d.PREVIEW the simplest code for IO​::Socket​::Async mis-behaves​:

  use v6.d.PREVIEW;

  react {
      whenever IO​::Socket​::Async.listen('localhost', 3333) -> $conn {
          whenever $conn.Supply(​:bin) -> $buf {
              await $conn.write​: $buf;
              $conn.close;
          }
      }
  }

Gives rise to​:

  Unhandled exception in code scheduled on thread 7
  Attempt to unlock mutex by thread not holding it

After the second connection every time. I noticed this when testing
HTTP​::Server​::Tiny.

This is Rakudo version 2017.01-132-g97359ae built on MoarVM version
2017.01-25-g70d4bd5

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@p6rt
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@p6rt p6rt commented Sep 15, 2017

From @jnthn

On Wed, 01 Feb 2017 13​:11​:21 -0800, jns@​gellyfish.co.uk wrote​:

With 6.d.PREVIEW the simplest code for IO​::Socket​::Async mis-behaves​:

use v6\.d\.PREVIEW;

react \{
    whenever IO​::Socket​::Async\.listen\('localhost', 3333\) \-> $conn \{
        whenever $conn\.Supply\(​:bin\) \-> $buf \{
            await $conn\.write​: $buf;
            $conn\.close;
        \}
    \}
\}

Gives rise to​:

Unhandled exception in code scheduled on thread 7
Attempt to unlock mutex by thread not holding it

After the second connection every time. I noticed this when testing
HTTP​::Server​::Tiny.

This is Rakudo version 2017.01-132-g97359ae built on MoarVM version
2017.01-25-g70d4bd5

Fixed now, and test coverage of this, and the deeper underlying issue, is in S17-promise/nonblocking-await.t.

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@p6rt
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@p6rt p6rt commented Sep 15, 2017

The RT System itself - Status changed from 'new' to 'open'

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@p6rt
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@p6rt p6rt commented Sep 15, 2017

@jnthn - Status changed from 'open' to 'resolved'

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@p6rt p6rt closed this Sep 15, 2017
@p6rt
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@p6rt p6rt commented Sep 16, 2017

From jns@gellyfish.co.uk

Great, thanks for the update.

On 15 Sep 2017 15​:17, "jnthn@​jnthn.net via RT" <perl6-bugs-followup@​perl.org>
wrote​:

On Wed, 01 Feb 2017 13​:11​:21 -0800, jns@​gellyfish.co.uk wrote​:

With 6.d.PREVIEW the simplest code for IO​::Socket​::Async mis-behaves​:

use v6\.d\.PREVIEW;

react \{
    whenever IO&#8203;::Socket&#8203;::Async\.listen\('localhost', 3333\) \-> $conn \{
        whenever $conn\.Supply\(&#8203;:bin\) \-> $buf \{
            await $conn\.write&#8203;: $buf;
            $conn\.close;
        \}
    \}
\}

Gives rise to​:

Unhandled exception in code scheduled on thread 7
Attempt to unlock mutex by thread not holding it

After the second connection every time. I noticed this when testing
HTTP​::Server​::Tiny.

This is Rakudo version 2017.01-132-g97359ae built on MoarVM version
2017.01-25-g70d4bd5

Fixed now, and test coverage of this, and the deeper underlying issue, is
in S17-promise/nonblocking-await.t.

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@p6rt p6rt added the Bug label Jan 5, 2020
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