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https://github.com/denoland/deno.git
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b40086fd7d
This commit changes "include_js_files!" macro from "deno_core"
in a way that "dir" option doesn't cause specifiers to be rewritten
to include it.
Example:
```
include_js_files! {
dir "js",
"hello.js",
}
```
The above definition required embedders to use:
`import ... from "internal:<ext_name>/js/hello.js"`.
But with this change, the "js" directory in which the files are stored
is an implementation detail, which for embedders results in:
`import ... from "internal:<ext_name>/hello.js"`.
The directory the files are stored in, is an implementation detail and
in some cases might result in a significant size difference for the
snapshot. As an example, in "deno_node" extension, we store the
source code in "polyfills" directory; which resulted in each specifier
to look like "internal:deno_node/polyfills/<module_name>", but with
this change it's "internal:deno_node/<module_name>".
Given that "deno_node" has over 100 files, many of them having
several import specifiers to the same extension, this change removes
10 characters from each import specifier.
81 lines
2.4 KiB
JavaScript
81 lines
2.4 KiB
JavaScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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// Copyright Joyent, Inc. and Node.js contributors. All rights reserved. MIT license.
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import { Buffer } from "internal:deno_node/buffer.ts";
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import { validateBufferArray } from "internal:deno_node/internal/fs/utils.mjs";
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import { getValidatedFd } from "internal:deno_node/internal/fs/utils.mjs";
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import { maybeCallback } from "internal:deno_node/_fs/_fs_common.ts";
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export function writev(fd, buffers, position, callback) {
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const innerWritev = async (fd, buffers, position) => {
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const chunks = [];
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const offset = 0;
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for (let i = 0; i < buffers.length; i++) {
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if (Buffer.isBuffer(buffers[i])) {
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chunks.push(buffers[i]);
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} else {
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chunks.push(Buffer.from(buffers[i]));
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}
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}
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if (typeof position === "number") {
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await Deno.seekSync(fd, position, Deno.SeekMode.Start);
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}
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const buffer = Buffer.concat(chunks);
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let currentOffset = 0;
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while (currentOffset < buffer.byteLength) {
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currentOffset += await Deno.writeSync(fd, buffer.subarray(currentOffset));
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}
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return currentOffset - offset;
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};
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fd = getValidatedFd(fd);
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validateBufferArray(buffers);
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callback = maybeCallback(callback || position);
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if (buffers.length === 0) {
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process.nextTick(callback, null, 0, buffers);
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return;
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}
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if (typeof position !== "number") position = null;
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innerWritev(fd, buffers, position).then(
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(nwritten) => {
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callback(null, nwritten, buffers);
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},
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(err) => callback(err),
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);
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}
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export function writevSync(fd, buffers, position) {
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const innerWritev = (fd, buffers, position) => {
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const chunks = [];
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const offset = 0;
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for (let i = 0; i < buffers.length; i++) {
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if (Buffer.isBuffer(buffers[i])) {
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chunks.push(buffers[i]);
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} else {
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chunks.push(Buffer.from(buffers[i]));
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}
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}
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if (typeof position === "number") {
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Deno.seekSync(fd, position, Deno.SeekMode.Start);
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}
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const buffer = Buffer.concat(chunks);
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let currentOffset = 0;
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while (currentOffset < buffer.byteLength) {
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currentOffset += Deno.writeSync(fd, buffer.subarray(currentOffset));
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}
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return currentOffset - offset;
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};
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fd = getValidatedFd(fd);
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validateBufferArray(buffers);
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if (buffers.length === 0) {
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return 0;
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}
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if (typeof position !== "number") position = null;
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return innerWritev(fd, buffers, position);
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}
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