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65 lines
2.1 KiB
TypeScript
65 lines
2.1 KiB
TypeScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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// Forked from https://github.com/DefinitelyTyped/DefinitelyTyped/blob/d9df51e34526f48bef4e2546a006157b391ad96c/types/node/fs.d.ts
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import { ErrnoException } from "ext:deno_node/_global.d.ts";
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/**
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* Write an array of `ArrayBufferView`s to the file specified by `fd` using`writev()`.
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*
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* `position` is the offset from the beginning of the file where this data
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* should be written. If `typeof position !== 'number'`, the data will be written
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* at the current position.
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*
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* The callback will be given three arguments: `err`, `bytesWritten`, and`buffers`. `bytesWritten` is how many bytes were written from `buffers`.
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*
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* If this method is `util.promisify()` ed, it returns a promise for an`Object` with `bytesWritten` and `buffers` properties.
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*
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* It is unsafe to use `fs.writev()` multiple times on the same file without
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* waiting for the callback. For this scenario, use {@link createWriteStream}.
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*
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* On Linux, positional writes don't work when the file is opened in append mode.
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* The kernel ignores the position argument and always appends the data to
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* the end of the file.
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* @since v12.9.0
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*/
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export function writev(
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fd: number,
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buffers: ReadonlyArray<ArrayBufferView>,
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cb: (
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err: ErrnoException | null,
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bytesWritten: number,
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buffers: ArrayBufferView[],
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) => void,
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): void;
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export function writev(
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fd: number,
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buffers: ReadonlyArray<ArrayBufferView>,
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position: number | null,
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cb: (
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err: ErrnoException | null,
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bytesWritten: number,
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buffers: ArrayBufferView[],
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) => void,
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): void;
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export interface WriteVResult {
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bytesWritten: number;
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buffers: ArrayBufferView[];
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}
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export namespace writev {
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function __promisify__(
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fd: number,
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buffers: ReadonlyArray<ArrayBufferView>,
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position?: number,
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): Promise<WriteVResult>;
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}
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/**
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* For detailed information, see the documentation of the asynchronous version of
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* this API: {@link writev}.
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* @since v12.9.0
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* @return The number of bytes written.
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*/
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export function writevSync(
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fd: number,
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buffers: ReadonlyArray<ArrayBufferView>,
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position?: number,
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): number;
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