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34 lines
1.1 KiB
TypeScript
34 lines
1.1 KiB
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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import * as msg from "gen/cli/msg_generated";
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import * as flatbuffers from "./flatbuffers";
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import * as dispatch from "./dispatch";
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function req(
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name: string,
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len?: number
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): [flatbuffers.Builder, msg.Any, flatbuffers.Offset] {
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const builder = flatbuffers.createBuilder();
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const name_ = builder.createString(name);
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len = len && len > 0 ? Math.floor(len) : 0;
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const inner = msg.Truncate.createTruncate(builder, name_, len);
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return [builder, msg.Any.Truncate, inner];
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}
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/** Truncates or extends the specified file synchronously, updating the size of
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* this file to become size.
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*
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* Deno.truncateSync("hello.txt", 10);
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*/
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export function truncateSync(name: string, len?: number): void {
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dispatch.sendSync(...req(name, len));
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}
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/**
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* Truncates or extends the specified file, updating the size of this file to
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* become size.
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*
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* await Deno.truncate("hello.txt", 10);
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*/
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export async function truncate(name: string, len?: number): Promise<void> {
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await dispatch.sendAsync(...req(name, len));
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}
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