This commit adds granular `--unstable-*` flags:
- "--unstable-broadcast-channel"
- "--unstable-ffi"
- "--unstable-fs"
- "--unstable-http"
- "--unstable-kv"
- "--unstable-net"
- "--unstable-worker-options"
- "--unstable-cron"
These flags are meant to replace a "catch-all" flag - "--unstable", that
gives a binary control whether unstable features are enabled or not. The
downside of this flag that allowing eg. Deno KV API also enables the FFI
API (though the latter is still gated with a permission).
These flags can also be specified in `deno.json` file under `unstable`
key.
Currently, "--unstable" flag works the same way - I will open a follow
up PR that will print a warning when using "--unstable" and suggest to use
concrete "--unstable-*" flag instead. We plan to phase out "--unstable"
completely in Deno 2.
Implements `WebSocket` over http/2. This requires a conformant http/2
server supporting the extended connect protocol.
Passes approximately 100 new WPT tests (mostly `?wpt_flags=h2` versions
of existing websockets APIs).
This is implemented as a fallback when http/1.1 fails, so a server that
supports both h1 and h2 WebSockets will still end up on the http/1.1
upgrade path.
The patch also cleas up the websockets handshake to split it up into
http, https+http1 and https+http2, making it a little less intertwined.
This uncovered a likely bug in the WPT test server:
https://github.com/web-platform-tests/wpt/issues/42896
This PR adds unstable `Deno.cron` API to trigger execution of cron jobs.
* State: All cron state is in memory. Cron jobs are scheduled according
to the cron schedule expression and the current time. No state is
persisted to disk.
* Time zone: Cron expressions specify time in UTC.
* Overlapping executions: not permitted. If the next scheduled execution
time occurs while the same cron job is still executing, the scheduled
execution is skipped.
* Retries: failed jobs are automatically retried until they succeed or
until retry threshold is reached. Retry policy can be optionally
specified using `options.backoffSchedule`.
Use new https://github.com/denoland/rustls-tokio-stream project instead
of tokio-rustls for direct websocket connections. This library was
written from the ground up to be more reliable and should help with
various bugs that may occur due to underlying bugs in the old library.
Believed to fix #20355, #18977, #20948
Towards #20996
`deno_whoami` is lightweight on unix and has zero framework dependency
on macOS. https://github.com/denoland/deno_whoami
---------
Signed-off-by: Divy Srivastava <dj.srivastava23@gmail.com>
Workaround the circular references issue by using a initializer function
to give tty stream class to `initStdin`.
Fixes https://github.com/denoland/deno/issues/21024
Fixes https://github.com/denoland/deno/issues/20611
Fixes https://github.com/denoland/deno/issues/20890
Fixes https://github.com/denoland/deno/issues/20336
`create-svelte` works now:
```
divy@mini /t/a> ~/gh/deno/target/debug/deno run -A --unstable --reload npm:create-svelte@latest sveltekit-deno
create-svelte version 5.1.1
┌ Welcome to SvelteKit!
│
◇ Which Svelte app template?
│ Skeleton project
│
◇ Add type checking with TypeScript?
│ Yes, using JavaScript with JSDoc comments
│
◇ Select additional options (use arrow keys/space bar)
│ none
│
└ Your project is ready!
✔ Type-checked JavaScript
https://www.typescriptlang.org/tsconfig#checkJs
Install community-maintained integrations:
https://github.com/svelte-add/svelte-add
Next steps:
1: cd sveltekit-deno
2: npm install
3: git init && git add -A && git commit -m "Initial commit" (optional)
4: npm run dev -- --open
To close the dev server, hit Ctrl-C
Stuck? Visit us at https://svelte.dev/chat
```
---------
Signed-off-by: Divy Srivastava <dj.srivastava23@gmail.com>
This commit updates the ext/kv module to use the denokv_* crates for
the protocol and the sqlite backend. This also fixes a couple of bugs in
the sqlite backend, and updates versionstamps to be updated less
linearly.
I'm not sure what was the purpose of trying to be so clever with the
args were (maybe an optimization?), but it breaks variadic args as
pointed out in #20054.
Signed-off-by: Matt Mastracci <matthew@mastracci.com>
Co-authored-by: Matt Mastracci <matthew@mastracci.com>
This commit improves "node:http2" module implementation, by enabling
to use "options.createConnection" callback when starting an HTTP2
session.
This change enables to pass basic client-side test with "grpc-js/grpc"
package.
Smaller fixes like "Http2Session.unref()" and "Http2Session.setTimeout()"
were handled as well.
Fixes #16647
Otherwise you can not return `Deno.Server` from async functions.
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Migrate to op2. Making a few decisions to get this across the line:
- Empty slices, no matter where the come from, are null pointers. The v8
bugs (https://bugs.chromium.org/p/v8/issues/detail?id=13489) and
(https://bugs.chromium.org/p/v8/issues/detail?id=13488) make passing
around zero-length slice pointers too dangerous as they might be
uninitialized or null data.
- Offsets and lengths are `#[number] isize` and `#[number] usize`
respectively -- 53 bits should be enough for anyone
- Pointers are bigints. This is a u64 in the fastcall world, and can
accept Integer/Int32/Number/BigInt v8 types in the slow world.
fixes #20454
Current KV queues implementation assumes that `enqueue` and
`listenQueue` are called on the same instance of `Deno.Kv`. It's
possible that the same Deno process opens multiple KV instances pointing
to the same fs path, and in that case `listenQueue` should still get
notified of messages enqueued through a different KV instance.
For the following example, if I set the encoding to `base64url`, it'll
throw an unexpected TypeError:
```ts
import { Buffer } from "node:buffer";
Buffer.from("IntcImhlbGxvXCI6XCJoZGQvZStpXCJ9Ig", "base64url").toString();
// error: Uncaught TypeError: src.subarray is not a function
// const buf = Buffer.from(
// ^
// at blitBuffer (ext:deno_node/internal/buffer.mjs:1779:15)
// at Uint8Array.base64urlWrite (ext:deno_node/internal/buffer.mjs:691:10)
// at Object.write (ext:deno_node/internal/buffer.mjs:2195:11)
// at Uint8Array.write (ext:deno_node/internal/buffer.mjs:794:14)
// at fromString (ext:deno_node/internal/buffer.mjs:214:22)
// at _from (ext:deno_node/internal/buffer.mjs:119:12)
// at Function.from (ext:deno_node/internal/buffer.mjs:157:10)
// at file:///Users/foodieats/temp/buffer1.ts:3:20
```
The error caused by `base64urlWrite` function, it should call
`forgivingBase64UrlDecode` not `forgivingBase64UrlEncode`
Also fixed #20563 .
We can go one level down in abstraction and avoid using the public
`ReadableStream` APIs.
This patch ~5% perf boost on small ReadableStream:
```
Running 10s test @ http://localhost:8080/
2 threads and 10 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 148.32us 108.95us 3.88ms 95.71%
Req/Sec 33.24k 2.68k 37.94k 73.76%
668188 requests in 10.10s, 77.74MB read
Requests/sec: 66162.91
Transfer/sec: 7.70MB
```
main:
```
Running 10s test @ http://localhost:8080/
2 threads and 10 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 150.23us 67.61us 4.39ms 94.80%
Req/Sec 31.81k 1.55k 35.56k 83.17%
639078 requests in 10.10s, 74.36MB read
Requests/sec: 63273.72
Transfer/sec: 7.36MB
```
Fixes: #20569 by introducing a custom replacement for the tokio mpsc
channel that is byte-size backpressure-aware.
Using the testcase in the linked bug, we see all the small writes
aggregated into a single packet and HTTP frame.
```
10:39 $ nc localhost 8000
GET / HTTP/1.1
HTTP/1.1 200 OK
content-type: text/plain
vary: Accept-Encoding
transfer-encoding: chunked
date: Tue, 19 Sep 2023 16:39:13 GMT
A
0
1
2
3
4
```
This patch:
```
Running 10s test @ http://localhost:8080/
2 threads and 10 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 157.47us 194.89us 9.53ms 98.97%
Req/Sec 31.37k 1.56k 34.73k 85.15%
630407 requests in 10.10s, 73.35MB read
Requests/sec: 62428.12
Transfer/sec: 7.26MB
```
main:
```
Running 10s test @ http://localhost:8080/
2 threads and 10 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 343.75us 200.48us 10.41ms 98.25%
Req/Sec 14.64k 806.52 16.98k 84.65%
294018 requests in 10.10s, 39.82MB read
Requests/sec: 29109.91
Transfer/sec: 3.94MB
```
---------
Co-authored-by: Bert Belder <bertbelder@gmail.com>
This commit improves async op sanitizer speed by only delaying metrics
collection if there are pending ops. This
results in a speedup of around 30% for small CPU bound unit tests.
It performs this check and possible delay on every collection now,
fixing an issue with parent test leaks into steps.
This commit adds "deno jupyter" subcommand which
provides a Deno kernel for Jupyter notebooks.
The implementation is mostly based on Deno's REPL and
reuses large parts of it (though there's some clean up that
needs to happen in follow up PRs). Not all functionality of
Jupyter kernel is implemented and some message type
are still not implemented (eg. "inspect_request") but
the kernel is fully working and provides all the capatibilities
that the Deno REPL has; including TypeScript transpilation
and npm packages support.
Closes https://github.com/denoland/deno/issues/13016
---------
Co-authored-by: Adam Powers <apowers@ato.ms>
Co-authored-by: Kyle Kelley <rgbkrk@gmail.com>
This commit improves compatibility of "node:http2" module by polyfilling
"connect" method and "ClientHttp2Session" class. Basic operations like
streaming, header and trailer handling are working correctly.
Refing/unrefing is still a TODO and "npm:grpc-js/grpc" is not yet working
correctly.
---------
Co-authored-by: Matt Mastracci <matthew@mastracci.com>
This PR implements a graceful shutdown API for Deno.serve, allowing all
current connections to drain from the server before shutting down, while
preventing new connections from being started or new transactions on
existing connections from being created.
We split the cancellation handle into two parts: a listener handle, and
a connection handle. A graceful shutdown cancels the listener only,
while allowing the connections to drain. The connection handle aborts
all futures. If the listener handle is cancelled, we put the connections
into graceful shutdown mode, which disables keep-alive on http/1.1 and
uses http/2 mechanisms for http/2 connections.
In addition, we now guarantee that all connections are complete or
cancelled, and all resources are cleaned up when the server `finished`
promise resolves -- we use a Rust-side server refcount for this.
Performance impact: does not appear to affect basic serving performance
by more than 1% (~126k -> ~125k)
---------
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Fixes https://github.com/denoland/deno/issues/19816
In that issue, I suggest switching over the other brotli functionality
to the Rust API provided by the `brotli` crate. Here, I only do that
with the `brotli_decompress` function to fix the bug with buffers longer
than 4096 bytes.
Keys are expensive metadata. We track it for various purposes, e.g.
transaction conflict check, and key expiration.
This patch limits the total key size in an atomic operation to 80 KiB
(81920 bytes). This helps ensure efficiency in implementations.
When trying to run
```
deno run -A --unstable npm:astro dev
```
in my Astro project it fails with:
```
Node.js v18.12.1 is not supported by Astro!
Please upgrade Node.js to a supported version: ">=18.14.1"
```
My current version is:
```
~ ❯ node --version
v20.5.1
```
Bumping the version to the latest stable Release of node in
`ext/node/polyfills/_process/process.ts` fixes this.
I don't know if this causes any conflicts, so please feel free to
correct me here.
Rewrites 3 ops that used "op(deferred)" to use "op2(async(lazy))"
instead.
This will allow us to remove codepath for handling "deferred" ops in
"deno_core".
The fix for #20188 was not entirely correct -- we were unlocking the
global buffer incorrectly. This PR introduces a lock state that ensures
we only unlock a lock we have taken out.
When a TCP connection is force-closed (ie: browser refresh), the
underlying future we pass to Hyper is dropped which may cause us to try
to drop the body resource while the OpState lock is still held.
Preconditions for this bug to trigger:
- The body resource must have been taken
- The response must return a resource (which requires us to take the
OpState lock)
- The TCP connection must have been dropped before this
Fixes #20315 and #20298
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As the title.
---------
Co-authored-by: Matt Mastracci <matthew@mastracci.com>
This patch adds a `remote` backend for `ext/kv`. This supports
connection to Deno Deploy and potentially other services compatible with
the KV Connect protocol.
Deno.serve's fast streaming implementation was not keeping the request
body resource ID alive. We were taking the `Rc<Resource>` from the
resource table during the response, so a hairpin duplex response that
fed back the request body would work.
However, if any JS code attempted to read from the request body (which
requires the resource ID to be valid), the response would fail with a
difficult-to-diagnose "EOF" error.
This was affecting more complex duplex uses of `Deno.fetch` (though as
far as I can tell was unreported).
Simple test:
```ts
const reader = request.body.getReader();
return new Response(
new ReadableStream({
async pull(controller) {
const { done, value } = await reader.read();
if (done) {
controller.close();
} else {
controller.enqueue(value);
}
},
}),
```
And then attempt to use the stream in duplex mode:
```ts
async function testDuplex(
reader: ReadableStreamDefaultReader<Uint8Array>,
writable: WritableStreamDefaultWriter<Uint8Array>,
) {
await writable.write(new Uint8Array([1]));
const chunk1 = await reader.read();
assert(!chunk1.done);
assertEquals(chunk1.value, new Uint8Array([1]));
await writable.write(new Uint8Array([2]));
const chunk2 = await reader.read();
assert(!chunk2.done);
assertEquals(chunk2.value, new Uint8Array([2]));
await writable.close();
const chunk3 = await reader.read();
assert(chunk3.done);
}
```
In older versions of Deno, this would just lock up. I believe after
23ff0e722e, it started throwing a more
explicit error:
```
httpServerStreamDuplexJavascript => ./cli/tests/unit/serve_test.ts:1339:6
error: TypeError: request or response body error: error reading a body from connection: Connection reset by peer (os error 54)
at async Object.pull (ext:deno_web/06_streams.js:810:27)
```
Properly handle the `SQLITE_BUSY` error code by retrying the
transaction.
Also wraps database initialization logic in a transaction to protect
against incomplete/concurrent initializations.
Fixes https://github.com/denoland/deno/issues/20116.
