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denoland-deno/runtime
Aaron O'Mullan 00948a6d68
perf(runtime/fs): optimize readFile by using a single large buffer (#12057)
* perf(runtime/fs): optimize readFile by using a single large buffer
* handle extended/truncated files during read

Allocate an extra byte in our read buffer to detect "overflow" then fallback to unsized readAll for remainder of extended file, this is a slowpath that should rarely happen in practice
2021-09-16 20:28:15 +02:00
..
examples feat(runtime): support classic workers for internal testing (#11338) 2021-08-16 14:29:54 +02:00
js perf(runtime/fs): optimize readFile by using a single large buffer (#12057) 2021-09-16 20:28:15 +02:00
ops chore: bump crate versions for 0.14 (#12072) 2021-09-14 15:38:35 -04:00
build.rs feat(fetch): mTLS client certificates for fetch() (#11721) 2021-08-25 14:25:12 +02:00
Cargo.toml chore: bump crate versions for 0.14 (#12072) 2021-09-14 15:38:35 -04:00
colors.rs refactor: Remove duplicated colors.rs file (#11990) 2021-09-12 12:04:17 -04:00
errors.rs chore: upgrade Rust to 1.55.0 (#11965) 2021-09-09 21:15:21 -04:00
fs_util.rs fix: do not panic on not found cwd (#10238) 2021-04-21 17:52:00 +02:00
inspector_server.rs refactor: cleanup Inspector and InspectorServer implementations (#11837) 2021-08-25 13:39:23 +02:00
js.rs refactor: unify JavaScript script execution method (#11043) 2021-06-22 01:45:41 +02:00
lib.rs feat(tls): Optionally support loading native certs (#11491) 2021-08-07 14:49:38 +02:00
metrics.rs Remove various unnecessary allow(clippy) declarations (#10971) 2021-06-15 19:22:28 +02:00
permissions.rs fix: permission prompt stuffing on Windows (#11969) 2021-09-14 08:37:27 -04:00
README.md chore: fix decendents in runtime readme (#9718) 2021-03-08 13:23:46 +01:00
tokio_util.rs upgrade: tokio 1.0 (#8779) 2021-01-11 23:50:02 -08:00
web_worker.rs feat(fetch): mTLS client certificates for fetch() (#11721) 2021-08-25 14:25:12 +02:00
worker.rs feat(fetch): mTLS client certificates for fetch() (#11721) 2021-08-25 14:25:12 +02:00

deno_runtime crate

crates docs

This is a slim version of the Deno CLI which removes typescript integration and various tooling (like lint and doc). Basically only JavaScript execution with Deno's operating system bindings (ops).

Stability

This crate is built using battle-tested modules that were originally in deno crate, however the API of this crate is subject to rapid and breaking changes.

MainWorker

The main API of this crate is MainWorker. MainWorker is a structure encapsulating deno_core::JsRuntime with a set of ops used to implement Deno namespace.

When creating a MainWorker implementors must call MainWorker::bootstrap to prepare JS runtime for use.

MainWorker is highly configurable and allows to customize many of the runtime's properties:

  • module loading implementation
  • error formatting
  • support for source maps
  • support for V8 inspector and Chrome Devtools debugger
  • HTTP client user agent, CA certificate
  • random number generator seed

Worker Web API

deno_runtime comes with support for Worker Web API. The Worker API is implemented using WebWorker structure.

When creating a new instance of MainWorker implementors must provide a callback function that is used when creating a new instance of Worker.

All WebWorker instances are descendents of MainWorker which is responsible for setting up communication with child worker. Each WebWorker spawns a new OS thread that is dedicated solely to that worker.