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denoland-deno/runtime
Bartek Iwańczuk 4b6305f4f2
perf(core): preserve ops between snapshots (#18080)
This commit changes the build process in a way that preserves already
registered ops in the snapshot. This allows us to skip creating hundreds of
"v8::String" on each startup, but sadly there is still some op registration
going on startup (however we're registering 49 ops instead of >200 ops). 

This situation could be further improved, by moving some of the ops 
from "runtime/" to a separate extension crates.

---------

Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
2023-03-18 12:51:21 +01:00
..
examples refactor(core): pass cwd explicitly to resolve_path (#18092) 2023-03-13 18:50:23 +01:00
js BREAKING(unstable): remove WebGPU (#18094) 2023-03-17 00:29:32 +01:00
ops perf(core): preserve ops between snapshots (#18080) 2023-03-18 12:51:21 +01:00
permissions refactor: remove usages of map_or / map_or_else (#18212) 2023-03-15 17:46:36 -04:00
build.rs perf(core) Reduce copying and cloning in extension initialization (#18252) 2023-03-17 22:15:27 +00:00
Cargo.toml perf: disable runtime snapshot compression (#18239) 2023-03-17 08:49:46 +05:30
colors.rs chore: use rustfmt imports_granularity option (#17421) 2023-01-14 23:18:58 -05:00
errors.rs BREAKING(unstable): remove WebGPU (#18094) 2023-03-17 00:29:32 +01:00
fmt_errors.rs refactor: remove usages of map_or / map_or_else (#18212) 2023-03-15 17:46:36 -04:00
fs_util.rs chore: use rustfmt imports_granularity option (#17421) 2023-01-14 23:18:58 -05:00
inspector_server.rs refactor: use pin! macro from std (#18110) 2023-03-10 02:28:51 +00:00
js.rs perf: disable runtime snapshot compression (#18239) 2023-03-17 08:49:46 +05:30
lib.rs BREAKING(unstable): remove WebGPU (#18094) 2023-03-17 00:29:32 +01:00
README.md chore: fix decendents in runtime readme (#9718) 2021-03-08 13:23:46 +01:00
tokio_util.rs chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
web_worker.rs perf(core) Reduce copying and cloning in extension initialization (#18252) 2023-03-17 22:15:27 +00:00
worker.rs perf(core) Reduce copying and cloning in extension initialization (#18252) 2023-03-17 22:15:27 +00:00
worker_bootstrap.rs perf(core, runtime): Further improve startup time (#17860) 2023-02-22 06:25:31 +05:30

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.