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src: speed up process.getActiveResourcesInfo() #46014

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Merged
nodejs-github-bot merged 3 commits into from
Jan 3, 2023
Merged

src: speed up process.getActiveResourcesInfo() #46014

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53f003f
src: speed up process.getActiveResourcesInfo()
RaisinTen Dec 29, 2022
6e81c2c
lib: explain timeoutInfo
RaisinTen Jan 2, 2023
1da9e75
lib: update comment
RaisinTen Jan 2, 2023
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4 changes: 4 additions & 0 deletions lib/internal/timers.js
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Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,10 @@ let timerListId = NumberMIN_SAFE_INTEGER;
const kRefed = Symbol('refed');

let nextExpiry = Infinity;
// timeoutInfo is an Int32Array that contains the reference count of Timeout
// objects at index 0. This is a TypedArray so that GetActiveResourcesInfo() in
// `src/node_process_methods.cc` is able to access this value without crossing
// the JS-C++ boundary, which is currently slow.
timeoutInfo[0] = 0;

// This is a priority queue with a custom sorting function that first compares
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