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>
