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Code Issues Packages 1 Wiki Activity

Increase copyN buffer size to match go implementation (#4904)

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Marcos Casagrande 2020-04-26 22:29:51 +02:00 committed by GitHub
parent 49cad79fb1
commit 128dce0d8a
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1 changed files with 4 additions and 2 deletions
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6
std/io/ioutil.ts
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@ -4,6 +4,8 @@ type Reader = Deno.Reader;
type Writer = Deno.Writer;
import { assert } from "../testing/asserts.ts";
const DEFAULT_BUFFER_SIZE = 32 * 1024;
/** copy N size at the most.
* If read size is lesser than N, then returns nread
* */
@ -13,9 +15,9 @@ export async function copyN(
size: number
): Promise<number> {
let bytesRead = 0;
let buf = new Uint8Array(1024);
let buf = new Uint8Array(DEFAULT_BUFFER_SIZE);
while (bytesRead < size) {
if (size - bytesRead < 1024) {
if (size - bytesRead < DEFAULT_BUFFER_SIZE) {
buf = new Uint8Array(size - bytesRead);
}
const result = await r.read(buf);