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33 lines
972 B
TypeScript
33 lines
972 B
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { sendSync, sendAsync } from "../dispatch_json.ts";
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import { SeekMode } from "../../io.ts";
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/** Synchronously seek a file ID to the given offset under mode given by `whence`.
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*
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* Returns the number of cursor position.
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*
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* const file = Deno.openSync("/foo/bar.txt");
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* const position = Deno.seekSync(file.rid, 0, 0);
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*/
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export function seekSync(
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rid: number,
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offset: number,
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whence: SeekMode
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): number {
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return sendSync("op_seek", { rid, offset, whence });
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}
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/** Seek a file ID to the given offset under mode given by `whence`.
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*
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* Resolves with the number of cursor position.
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*
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* const file = await Deno.open("/foo/bar.txt");
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* const position = await Deno.seek(file.rid, 0, 0);
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*/
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export async function seek(
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rid: number,
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offset: number,
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whence: SeekMode
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): Promise<number> {
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return await sendAsync("op_seek", { rid, offset, whence });
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}
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