deno/core
Ryan Dahl 161cf7cdfd
refactor: Use Tokio's single-threaded runtime (#3844)
This change simplifies how we execute V8. Previously V8 Isolates jumped
around threads every time they were woken up. This was overly complex and
potentially hurting performance in a myriad ways. Now isolates run on
their own dedicated thread and never move.

- blocking_json spawns a thread and does not use a thread pool
- op_host_poll_worker and op_host_resume_worker are non-operational
- removes Worker::get_message and Worker::post_message
- ThreadSafeState::workers table contains WorkerChannel entries instead
  of actual Worker instances.
- MainWorker and CompilerWorker are no longer Futures.
- The multi-threaded version of deno_core_http_bench was removed.
- AyncOps no longer need to be Send + Sync

This PR is very large and several tests were disabled to speed
integration:
- installer_test_local_module_run
- installer_test_remote_module_run
- _015_duplicate_parallel_import
- _026_workers
2020-02-03 18:08:44 -05:00
..
examples refactor: Use Tokio's single-threaded runtime (#3844) 2020-02-03 18:08:44 -05:00
any_error.rs Refactor error tracking and scope juggling in deno_core (#3783) 2020-01-25 14:31:42 +01:00
bindings.rs Refactor error tracking and scope juggling in deno_core (#3783) 2020-01-25 14:31:42 +01:00
Cargo.toml refactor: Use Tokio's single-threaded runtime (#3844) 2020-02-03 18:08:44 -05:00
es_isolate.rs refactor: Use Tokio's single-threaded runtime (#3844) 2020-02-03 18:08:44 -05:00
flags.rs Replace libdeno with rusty_v8 (#3556) 2020-01-05 09:19:29 -05:00
isolate.rs refactor: Use Tokio's single-threaded runtime (#3844) 2020-02-03 18:08:44 -05:00
js_errors.rs Remove //tests symlink (#3849) 2020-02-02 16:55:22 -05:00
lib.rs refactor: Use Tokio's single-threaded runtime (#3844) 2020-02-03 18:08:44 -05:00
module_specifier.rs fix typos (#3573) 2020-01-02 07:48:46 -05:00
modules.rs refactor: Use Tokio's single-threaded runtime (#3844) 2020-02-03 18:08:44 -05:00
ops.rs refactor: Use Tokio's single-threaded runtime (#3844) 2020-02-03 18:08:44 -05:00
plugins.rs refactor: Use Tokio's single-threaded runtime (#3844) 2020-02-03 18:08:44 -05:00
README.md update readmes (#3765) 2020-01-23 22:32:52 +01:00
resources.rs Happy new year! (#3578) 2020-01-02 15:13:47 -05:00
shared_queue.js Reland "Create an old program to be used in snapshot." (#3747) 2020-01-22 20:18:01 +01:00
shared_queue.rs Upgrade rusty_v8 (#3816) 2020-01-29 13:03:42 +01:00
shared_queue_test.js Happy new year! (#3578) 2020-01-02 15:13:47 -05:00

Deno Core Crate

crates docs

The main dependency of this crate is rusty_v8, which provides the V8-Rust bindings.

This Rust crate contains the essential V8 bindings for Deno's command-line interface (Deno CLI). The main abstraction here is the Isolate which provides a way to execute JavaScript. The Isolate is modeled as a Future<Item=(), Error=JSError> which completes once all of its ops have completed.

In order to bind Rust functions into JavaScript, use the Deno.core.dispatch() function to trigger the "dispatch" callback in Rust. The user is responsible for encoding both the request and response into a Uint8Array.

Documentation for this crate is thin at the moment. Please see http_bench.rs as a simple example of usage.

TypeScript support and a lot of other functionality is not available at this layer. See the cli for that.