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http2: general code cleanups #19400

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@jasnell jasnell commented Mar 16, 2018

/cc @addaleax @mcollina

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

jasnell added 3 commits March 16, 2018 12:58
Most of the inlines were leftovers from a much older design
iteration and are largely pointless or counter productive.
Use of a MaybeStackBuffer was just silly. Fix a long standing todo
Reduce code duplication a bit.
@nodejs-github-bot 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 Mar 16, 2018
};
session->MakeCallback(env->error_string(), arraysize(argv), argv);
Local<Value> argv = Integer::New(isolate, lib_error_code);
session->MakeCallback(env->error_string(), 1, &argv);
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You may want to call this arg, since it’s not really a vector any longer :)

(ditto below)

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jasnell commented Mar 16, 2018

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LGTM

@@ -283,13 +251,13 @@ Http2Session::Http2Settings::~Http2Settings() {
// Generates a Buffer that contains the serialized payload of a SETTINGS
// frame. This can be used, for instance, to create the Base64-encoded
// content of an Http2-Settings header field.
inline Local<Value> Http2Session::Http2Settings::Pack() {
Local<Value> Http2Session::Http2Settings::Pack() {
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is it ok to remove this inline directive here and in the other functions? Wouldn't this impact perf somehow?

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@addaleax addaleax Mar 17, 2018

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@mcollina It’s not only okay, it’s more or less the correct thing to do.

This has a pretty good explanation. tl;dr: Compilers are generally better than humans at judging what functions to inline or not, and will gladly ignore this advice. However, inline does affect the linkage properties of a function, and so its primary use should be to mark functions that are defined in header files (outside of a class definition).

I just tested it with gcc, and the compiler output is the same before and after this commit, byte-for-byte.

jasnell added a commit that referenced this pull request Mar 18, 2018
Most of the inlines were leftovers from a much older design
iteration and are largely pointless or counter productive.

PR-URL: #19400
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
jasnell added a commit that referenced this pull request Mar 18, 2018
Use of a MaybeStackBuffer was just silly. Fix a long standing todo
Reduce code duplication a bit.

PR-URL: #19400
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
jasnell added a commit that referenced this pull request Mar 18, 2018
PR-URL: #19400
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
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jasnell commented Mar 18, 2018

Landed in 49799f3, 224941b, and d74184c

@jasnell jasnell closed this Mar 18, 2018
MylesBorins pushed a commit that referenced this pull request Mar 20, 2018
Most of the inlines were leftovers from a much older design
iteration and are largely pointless or counter productive.

PR-URL: #19400
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
MylesBorins pushed a commit that referenced this pull request Mar 20, 2018
Use of a MaybeStackBuffer was just silly. Fix a long standing todo
Reduce code duplication a bit.

PR-URL: #19400
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
MylesBorins pushed a commit that referenced this pull request Mar 20, 2018
PR-URL: #19400
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
MylesBorins pushed a commit that referenced this pull request Mar 20, 2018
Most of the inlines were leftovers from a much older design
iteration and are largely pointless or counter productive.

PR-URL: #19400
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
MylesBorins pushed a commit that referenced this pull request Mar 20, 2018
Use of a MaybeStackBuffer was just silly. Fix a long standing todo
Reduce code duplication a bit.

PR-URL: #19400
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
MylesBorins pushed a commit that referenced this pull request Mar 20, 2018
PR-URL: #19400
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
@targos targos mentioned this pull request Mar 20, 2018
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codebytere commented Oct 18, 2018

@jasnell could you backport this to v8.x when you have a chance (or mark don't-land otherwise)?

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