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tls: make StreamWrap work correctly when waiting for "drain" events in doShutdown #23294

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tls: make StreamWrap work correctly when waiting for "drain" events in doShutdown #23294

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oyyd
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@oyyd oyyd commented Oct 6, 2018

When an instance of StreamWrap is shutting down and a "drain" event is emitted, the process will abort as its this[kCurrentShutdownRequest] is already set by doShutdown itself.

The following test will fail before this commit.

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines

addaleax
addaleax approved these changes Oct 6, 2018
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The following test will fail before this commit.

Is there a way to reach this error through public API? If so, can we use that for the test?

lib/internal/wrap_js_stream.js Outdated
@@ -114,7 +111,9 @@ class JSStreamWrap extends Socket {

if (this[kCurrentWriteRequest] !== null)
return this.on('drain', () => this.doShutdown(req));
assert.strictEqual(this[kCurrentWriteRequest], null);
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This assertion can stay, right? Or is it “too obvious” that it’s true?

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You are right. We can't be too careful here.

lib/internal/wrap_js_stream.js Outdated
@@ -114,7 +111,9 @@ class JSStreamWrap extends Socket {

if (this[kCurrentWriteRequest] !== null)
return this.on('drain', () => this.doShutdown(req));
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Aside: This should be .once(), I think?

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oyyd commented Oct 7, 2018 •
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I reached this error when I tried to use StreamWrap to wrap a server-side socket which, IMHO, might be a solution to issues like #10871.

In fact, I can't produce this through public API as doShutdown are always called by functions from stream.Writable instead of onshutdown from JSStream, IDK. This test is an imitation of this one. Therefore, feel free to oppose this PR.

As the situations that would reach this line of code seem to be rare, removing the listener to drain might come into consideration? (I'm not sure)

@oyyd
tls: make StreamWrap work correctly in "drain" callback
ba6b242 
When an instance of StreamWrap is shutting down and a "drain" event
is emitted, the instance will abort as its
`this[kCurrentShutdownRequest]` is already set. The following test
will fail before this commit.
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oyyd commented Oct 7, 2018 •
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The travis ci is green now. I didn't notice the core-validate-commit there.

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addaleax commented Oct 7, 2018

CI: https://ci.nodejs.org/job/node-test-pull-request/17674/

@addaleax addaleax added tls Issues and PRs related to the tls subsystem. author ready PRs that have at least one approval, no pending requests for changes, and a CI started. labels Oct 7, 2018
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danbev commented Oct 12, 2018

Landed in e4dea40.

@danbev danbev closed this Oct 12, 2018
danbev pushed a commit that referenced this pull request Oct 12, 2018
@oyyd @danbev
tls: make StreamWrap work correctly in "drain" callback
e4dea40 
When an instance of StreamWrap is shutting down and a "drain" event
is emitted, the instance will abort as its
`this[kCurrentShutdownRequest]` is already set. The following test
will fail before this commit.

PR-URL: #23294
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Daniel Bevenius <[email protected]>
@richardlau richardlau mentioned this pull request Oct 13, 2018
Closed
Trott pushed a commit that referenced this pull request Oct 13, 2018
@oyyd @Trott
tls: make StreamWrap work correctly in "drain" callback
6d151ad 
When an instance of StreamWrap is shutting down and a "drain" event
is emitted, the instance will abort as its
`this[kCurrentShutdownRequest]` is already set. The following test
will fail before this commit.

PR-URL: #23294
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Daniel Bevenius <[email protected]>
targos pushed a commit that referenced this pull request Oct 13, 2018
@oyyd @targos
tls: make StreamWrap work correctly in "drain" callback
3721f14 
When an instance of StreamWrap is shutting down and a "drain" event
is emitted, the instance will abort as its
`this[kCurrentShutdownRequest]` is already set. The following test
will fail before this commit.

PR-URL: #23294
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Daniel Bevenius <[email protected]>
jasnell pushed a commit that referenced this pull request Oct 17, 2018
@oyyd @jasnell
tls: make StreamWrap work correctly in "drain" callback
318f1cd 
When an instance of StreamWrap is shutting down and a "drain" event
is emitted, the instance will abort as its
`this[kCurrentShutdownRequest]` is already set. The following test
will fail before this commit.

PR-URL: #23294
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Daniel Bevenius <[email protected]>
MylesBorins pushed a commit that referenced this pull request Oct 30, 2018
@oyyd @MylesBorins
tls: make StreamWrap work correctly in "drain" callback
1afd207 
When an instance of StreamWrap is shutting down and a "drain" event
is emitted, the instance will abort as its
`this[kCurrentShutdownRequest]` is already set. The following test
will fail before this commit.

PR-URL: #23294
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Daniel Bevenius <[email protected]>
@codebytere codebytere mentioned this pull request Nov 27, 2018
Closed
rvagg pushed a commit that referenced this pull request Nov 28, 2018
@oyyd @rvagg
tls: make StreamWrap work correctly in "drain" callback
41e6d75 
When an instance of StreamWrap is shutting down and a "drain" event
is emitted, the instance will abort as its
`this[kCurrentShutdownRequest]` is already set. The following test
will fail before this commit.

PR-URL: #23294
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Daniel Bevenius <[email protected]>
MylesBorins pushed a commit that referenced this pull request Nov 29, 2018
@oyyd @MylesBorins
tls: make StreamWrap work correctly in "drain" callback
9487c42 
When an instance of StreamWrap is shutting down and a "drain" event
is emitted, the instance will abort as its
`this[kCurrentShutdownRequest]` is already set. The following test
will fail before this commit.

PR-URL: #23294
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Daniel Bevenius <[email protected]>
@codebytere codebytere mentioned this pull request Nov 29, 2018
Merged
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