Related issue: https://github.com/denoland/deno/issues/19358.
This is a regression that seems to have been introduced in
https://github.com/denoland/deno/pull/18905. It looks to have been a
performance optimization.
The issue is probably easiest described with some code:
```ts
const target = new EventTarget();
const event = new Event("foo");
target.addEventListener("foo", () => {
console.log('base');
target.addEventListener("foo", () => {
console.log('nested');
});
});
target.dispatchEvent(event);
```
Essentially, the second event listener is being attached while the `foo`
event is still being dispatched. It should then not fire that second
event listener, but Deno currently does.
This commit changes implementation of "setImmediate"
from "node:timers" module to 0ms timer that is never
clamped to 4ms no matter how many nested calls there are.
Closes https://github.com/denoland/deno/issues/19034
This commit changes the implementation of `ext/web` timers, by using
"op_void_async_deferred" for timeouts of 0ms.
0ms timeout is meant to be run at the end of the event loop tick and
currently Tokio timers that we use to back timeouts have at least 1ms
resolution. That means that 0ms timeout actually take >1ms. This
commit changes that and runs 0ms timeout at the end of the event
loop tick.
One consequence is that "unrefing" a 0ms timer will actually keep
the event loop alive (which I believe actually makes sense, the test
we had only worked because the timeout took more than 1ms).
Ref https://github.com/denoland/deno/issues/19034
**THIS PR HAS GIT CONFLICTS THAT MUST BE RESOLVED**
This is the release commit being forwarded back to main for 1.33.4
Please ensure:
- [x] Everything looks ok in the PR
- [ ] The release has been published
To make edits to this PR:
```shell
git fetch upstream forward_v1.33.4 && git checkout -b forward_v1.33.4 upstream/forward_v1.33.4
```
Don't need this PR? Close it.
cc @levex
Co-authored-by: levex <levex@users.noreply.github.com>
Co-authored-by: Levente Kurusa <lkurusa@kernelstuff.org>
If a timer is requested with <=100ms resolution, request the high-res
timer. Since the default Windows timer period is 15ms, this means a
100ms timer could fire at 115ms (15% late). We assume that timers longer
than 100ms are a reasonable cutoff here.
The high-res timers on Windows are still limited. Unfortuntely this
means that our shortest duration 4ms timers can still be 25% late, but
without a more complex timer system or spinning on the clock itself,
we're somewhat bounded by the OS' scheduler itself.
**THIS PR HAS GIT CONFLICTS THAT MUST BE RESOLVED**
This is the release commit being forwarded back to main for 1.33.3
Please ensure:
- [x] Everything looks ok in the PR
- [x] The release has been published
To make edits to this PR:
```shell
git fetch upstream forward_v1.33.3 && git checkout -b forward_v1.33.3 upstream/forward_v1.33.3
```
Don't need this PR? Close it.
cc @levex
Co-authored-by: Levente Kurusa <lkurusa@kernelstuff.org>
This now allows circular imports across extensions.
Instead of load + eval of all ESM files in declaration order, all files
are only loaded. Eval is done recursively by V8, only evaluating
files that are listed in `Extension::esm_entry_point` fields.
---------
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
**THIS PR HAS GIT CONFLICTS THAT MUST BE RESOLVED**
This is the release commit being forwarded back to main for 1.33.2
Please ensure:
- [x] Everything looks ok in the PR
- [x] The release has been published
To make edits to this PR:
```shell
git fetch upstream forward_v1.33.2 && git checkout -b forward_v1.33.2 upstream/forward_v1.33.2
```
Don't need this PR? Close it.
cc @levex
Co-authored-by: levex <levex@users.noreply.github.com>
Co-authored-by: Levente Kurusa <lkurusa@kernelstuff.org>
Migrates some of existing async ops to generated wrappers introduced in
https://github.com/denoland/deno/pull/18887. As a result "core.opAsync2"
was removed.
I will follow up with more PRs that migrate all the async ops to
generated wrappers.
- Do not use `ReflectHas` in `isNode`.
- Avoid copying handler array when handlers.length == 1
- Avoid searching for path target when path.length == 1
```
Linux divy-2 5.19.0-1022-gcp #24~22.04.1-Ubuntu SMP Sun Apr 23 09:51:08 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
32GiB System memory
Intel(R) Xeon(R) CPU @ 3.10GHz
# main + https://github.com/denoland/deno/pull/18904
Msg/sec: 89326.750000
Msg/sec: 90320.000000
Msg/sec: 89576.250000
# this patch
Msg/sec: 97250.000000
Msg/sec: 97125.500000
Msg/sec: 97964.500000
```
This should produce a little less garbage and using an object here
wasn't really required.
---------
Co-authored-by: Aapo Alasuutari <aapo.alasuutari@gmail.com>
Co-authored-by: Leo Kettmeir <crowlkats@toaxl.com>
This commit adds a new core API `opAsync2` to call an async op with
atmost 2 arguments. Spread argument iterators has a pretty big perf hit
when calling ops.
| name | avg msg/sec/core |
| --- | --- |
| 1.32.1 | `127820.750000` |
| #18506 | `140079.000000` |
| #18506 + #18509 | `150104.250000` |
| #18506 + #18509 + this | `157340.000000` |
Follow-up to #18210:
* we are passing the generated `cfg` object into the state function
rather than passing individual config fields
* reduce cloning dramatically by making the state_fn `FnOnce`
* `take` for `ExtensionBuilder` to avoid more unnecessary copies
* renamed `config` to `options`
This implements two macros to simplify extension registration and centralize a lot of the boilerplate as a base for future improvements:
* `deno_core::ops!` registers a block of `#[op]`s, optionally with type
parameters, useful for places where we share lists of ops
* `deno_core::extension!` is used to register an extension, and creates
two methods that can be used at runtime/snapshot generation time:
`init_ops` and `init_ops_and_esm`.
---------
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
This commit splits "<ext_name>::init" functions into "init_ops" and
"init_ops_and_esm". That way we don't have to construct list of
ESM sources on each startup if we're running with a snapshot.
In a follow up commit "deno_core" will be changed to not have a split
between "extensions" and "extensions_with_js" - it will be embedders'
responsibility to pass appropriately configured extensions.
Prerequisite for https://github.com/denoland/deno/pull/18080
