Remove StreamBase templating by maclover7 · Pull Request #25142 · nodejs/node

maclover7 · 2018-12-19T22:23:01Z

First attempt at trying to remove the templating in shared StreamBase methods. This approach casts directly to StreamBase via an internal field.

Unfortunately, I keep hitting linker errors when trying to run make -j8, and would appreciate any help in figuring out where they're coming from:

Details

duplicate symbol __ZN4node10StreamBase15GetBytesWrittenERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
/Users/jon/code/nodejs/node/out/Release/libnode.a(connection_wrap.o)
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duplicate symbol __ZN4node10StreamBase11GetExternalERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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/Users/jon/code/nodejs/node/out/Release/libnode.a(js_stream.o)
duplicate symbol __ZN4node10StreamBase12GetBytesReadERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase15GetBytesWrittenERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase11GetExternalERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase15GetBytesWrittenERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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/Users/jon/code/nodejs/node/out/Release/libnode.a(node_http_parser_llhttp.o)
duplicate symbol __ZN4node10StreamBase12GetBytesReadERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
/Users/jon/code/nodejs/node/out/Release/libnode.a(connection_wrap.o)
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duplicate symbol __ZN4node10StreamBase15GetBytesWrittenERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase11GetExternalERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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/Users/jon/code/nodejs/node/out/Release/libnode.a(node_http_parser_traditional.o)
duplicate symbol __ZN4node10StreamBase12GetBytesReadERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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/Users/jon/code/nodejs/node/out/Release/libnode.a(node_http_parser_traditional.o)
duplicate symbol __ZN4node10StreamBase15GetBytesWrittenERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase12GetBytesReadERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase5GetFDERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase15GetBytesWrittenERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase11GetExternalERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase12GetBytesReadERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase5GetFDERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase15GetBytesWrittenERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase12GetBytesReadERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase15GetBytesWrittenERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase11GetExternalERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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duplicate symbol __ZN4node10StreamBase12GetBytesReadERKN2v820FunctionCallbackInfoINS1_5ValueEEE in:
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ld: 52 duplicate symbols for architecture x86_64

Checklist

make -j4 test (UNIX), or vcbuild test (Windows) passes
tests and/or benchmarks are included
documentation is changed or added
commit message follows commit guidelines

nodejs-github-bot · 2018-12-19T22:23:03Z

@maclover7 build started: https://ci.nodejs.org/blue/organizations/jenkins/node-test-pull-request-lite-pipeline/detail/node-test-pull-request-lite-pipeline/2010/pipeline

addaleax

… Nice!

addaleax · 2018-12-19T22:32:16Z

Btw, we use 4 spaces of indentation here – and maybe it makes sense to turn this macro into a function?

Tips: use CLANG_FORMAT_START=master make format-cpp to auto format, or replace master with some other commit that you are branching from

maclover7 · 2018-12-19T23:36:21Z

updated @addaleax @joyeecheung, PTAL

addaleax

Still LGTM :)

maclover7 · 2018-12-19T23:44:36Z

Lite CI: https://ci.nodejs.org/job/node-test-pull-request-lite-pipeline/2013/ (✔️)
CI: https://ci.nodejs.org/job/node-test-pull-request/19687/

maclover7 · 2018-12-21T00:37:35Z

Looks like there is an intermittent timeout issue on some platforms with test-tls-socket-close, hoping common.platformTimeout can fix...

addaleax · 2019-01-07T23:05:23Z

CI: https://ci.nodejs.org/job/node-test-pull-request/19979/

addaleax · 2019-01-09T01:33:12Z

@maclover7 It looks like the issue is that some streams, in particular libuv streams, delete the associated C++ object before the JS object is garbage collected. They set the first internal field to nullptr, but they don’t know about the second internal field.

This would be a (but maybe not the best?) fix:

diff --git a/src/stream_base-inl.h b/src/stream_base-inl.h
index 1842962192db..d672fc5a0dae 100644
--- a/src/stream_base-inl.h+++ b/src/stream_base-inl.h@@ -274,6 +274,9 @@ inline void StreamBase::AttachToObject(v8::Local<v8::Object> obj) {
}
inline StreamBase* StreamBase::FromObject(v8::Local<v8::Object> obj) {
+ if (obj->GetAlignedPointerFromInternalField(0) == nullptr)+ return nullptr;+
return static_cast<StreamBase*>(
obj->GetAlignedPointerFromInternalField(kStreamBaseField));
}

addaleax · 2019-01-13T17:59:38Z

Ping @maclover7 – barring better ideas, I can also apply the patch above and push to this PR for you?

addaleax · 2019-03-07T11:51:33Z

Hm … ping @maclover7 again? :)

addaleax · 2019-03-07T16:06:40Z

I’ve rebased + pushed the suggested change… @jasnell Can you confirm your approval?

CI: https://ci.nodejs.org/job/node-test-pull-request/21304/

addaleax · 2019-03-07T19:40:04Z

Resume CI: https://ci.nodejs.org/job/node-test-pull-request/21313/

addaleax · 2019-03-08T08:31:08Z

Landed in 4697e1b 🎉

PR-URL: #25142 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com>

Since 4697e1b, it is no longer necessary to use `v8::External`s to pass `StreamBase` instances to native functions. Refs: nodejs#25142

Since 4697e1b, it is no longer necessary to use `v8::External`s to pass `StreamBase` instances to native functions. PR-URL: #26510 Refs: #25142 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: James M Snell <jasnell@gmail.com>

PR-URL: nodejs#25142 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com>

Since 4697e1b, it is no longer necessary to use `v8::External`s to pass `StreamBase` instances to native functions. PR-URL: #26510 Refs: #25142 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: James M Snell <jasnell@gmail.com>

PR-URL: #25142 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com>

Since 4697e1b, it is no longer necessary to use `v8::External`s to pass `StreamBase` instances to native functions. PR-URL: #26510 Refs: #25142 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: James M Snell <jasnell@gmail.com>

nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. lib / src Issues and PRs related to general changes in the lib or src directory. labels Dec 19, 2018

addaleax approved these changes Dec 19, 2018
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Comment threadsrc/stream_base-inl.h Outdated

addaleax reviewed Dec 19, 2018
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addaleax approved these changes Dec 19, 2018
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jasnell approved these changes Dec 20, 2018
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addaleax added author ready PRs that have at least one approval, no pending requests for changes, and a CI started. and removed author ready PRs that have at least one approval, no pending requests for changes, and a CI started. labels Jan 7, 2019

maclover7and others added 8 commits March 7, 2019 16:54

src: remove templating from StreamBase
1475c36

src: add method helper function
2af477e

fixup: move some .inl-h methods to .cc to compile
181741a

fixup: introduce StreamBase::AddMethod
4ee6a61

fixup: run c++ styler
52bd501

fixup: combine on one line
d384a6f

fixup: use platformTimeout to try and resolve timeout issue
2fd9181

fixup: fix StreamBase::FromObject
4411b72

jasnell approved these changes Mar 7, 2019
View reviewed changes

addaleax closed this Mar 8, 2019

addaleax pushed a commit that referenced this pull request Mar 8, 2019
src: remove templating from StreamBase
4697e1b
PR-URL: #25142 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com>

addaleax added a commit to addaleax/node that referenced this pull request Mar 8, 2019
lib,src: remove usage of _externalStream
7888115
Since 4697e1b, it is no longer necessary to use `v8::External`s to pass `StreamBase` instances to native functions. Refs: nodejs#25142

addaleax mentioned this pull request Mar 8, 2019
lib,src: remove usage of _externalStream #26510
Closed
3 tasks

BridgeAR pushed a commit to BridgeAR/node that referenced this pull request Mar 12, 2019
src: remove templating from StreamBase
3b06d29
PR-URL: nodejs#25142 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com>

BridgeAR mentioned this pull request Mar 13, 2019
2019-03-14, Version 11.12.0 (Current) #26644
Merged

BridgeAR pushed a commit that referenced this pull request Mar 14, 2019
src: remove templating from StreamBase
d688b8a
PR-URL: #25142 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com>

maclover7 deleted the jm-streambase branch March 16, 2019 02:15

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maclover7 commented Dec 19, 2018•
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