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readv - fs - Node documentation
function readv

Usage in Deno

import { readv } from "node:fs";
readv(
fd: number,
buffers: readonly ArrayBufferView[],
cb: (
err: ErrnoException | null,
bytesRead: number,
buffers: ArrayBufferView[],
) => void
,
): void

Read from a file specified by fd and write to an array of ArrayBufferViews using readv().

position is the offset from the beginning of the file from where data should be read. If typeof position !== 'number', the data will be read from the current position.

The callback will be given three arguments: err, bytesRead, and buffers. bytesRead is how many bytes were read from the file.

If this method is invoked as its util.promisify() ed version, it returns a promise for an Object with bytesRead and buffers properties.

Parameters

fd: number
buffers: readonly ArrayBufferView[]
cb: (
err: ErrnoException | null,
bytesRead: number,
buffers: ArrayBufferView[],
) => void

Return Type

void
readv(
fd: number,
buffers: readonly ArrayBufferView[],
position: number,
cb: (
err: ErrnoException | null,
bytesRead: number,
buffers: ArrayBufferView[],
) => void
,
): void

Parameters

fd: number
buffers: readonly ArrayBufferView[]
position: number
cb: (
err: ErrnoException | null,
bytesRead: number,
buffers: ArrayBufferView[],
) => void

Return Type

void