fix(ext/node): add missing process.constrainedMemory() API#32209
Merged
bartlomieju merged 7 commits intodenoland:mainfrom Feb 18, 2026
Merged
fix(ext/node): add missing process.constrainedMemory() API#32209bartlomieju merged 7 commits intodenoland:mainfrom
process.constrainedMemory() API#32209bartlomieju merged 7 commits intodenoland:mainfrom
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Make process.config and its nested objects immutable via Object.freeze() to match Node.js behavior. Enable test-process-config.js node compat test. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…emory() Add process.availableMemory() using Deno.systemMemoryInfo().available and process.constrainedMemory() backed by a new op that reads cgroup memory limits on Linux. Also freeze process.config for immutability. Enable three node compat tests: test-process-config.js, test-process-available-memory.js, test-process-constrained-memory.js. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Fix process event methods (on, off, emit, prependListener) to handle
Symbol event names by guarding `startsWith("SIG")` checks with a
`typeof event === "string"` check. Also fix process.emit to always
dispatch through EventEmitter rather than sending OS signals.
Enable test-process-emit.js and test-process-beforeexit-throw-exit.js
node compat tests.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Extract cgroup parsing logic used by `process.constrainedMemory()` into a shared `cgroup` module in `ext/node/ops/process.rs`, and reuse it from `cli/lib/worker.rs` instead of duplicating the parser. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
process.constrainedMemory() API
Replace disallowed `std::fs::read_to_string` calls in cgroup module with `sys.fs_read_to_string` via the `ExtNodeSys` trait, matching the pattern used elsewhere in the codebase. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
fraidev
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Feb 18, 2026
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LGTM!
Also tested on docker with a log and I got the same result from node:
docker run --rm -m 256m -v $PWD:/app -w /app node node a.js
268435456
docker run --rm -m 256m -v $PWD:/app -w /app debian ./target/debug/deno a.js
268435456
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Summary
process.constrainedMemory()into a shared publiccgroupmodule inext/node/ops/process.rscli/lib/worker.rs(V8 heap limit configuration) instead of duplicating itparallel/test-process-constrained-memory.jstest🤖 Generated with Claude Code