mirror of
https://github.com/denoland/deno.git
synced 2024-12-28 18:19:08 -05:00
bdc97b3976
Just some clean up reorganization around flatbuffer/minimal dispatch code. This is prep for adding a JSON dispatcher.
32 lines
1 KiB
TypeScript
32 lines
1 KiB
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
|
|
import { sendSync, sendAsync, msg, flatbuffers } from "./dispatch_flatbuffers";
|
|
|
|
function req(
|
|
name: string,
|
|
len?: number
|
|
): [flatbuffers.Builder, msg.Any, flatbuffers.Offset] {
|
|
const builder = flatbuffers.createBuilder();
|
|
const name_ = builder.createString(name);
|
|
len = len && len > 0 ? Math.floor(len) : 0;
|
|
const inner = msg.Truncate.createTruncate(builder, name_, len);
|
|
return [builder, msg.Any.Truncate, inner];
|
|
}
|
|
|
|
/** Truncates or extends the specified file synchronously, updating the size of
|
|
* this file to become size.
|
|
*
|
|
* Deno.truncateSync("hello.txt", 10);
|
|
*/
|
|
export function truncateSync(name: string, len?: number): void {
|
|
sendSync(...req(name, len));
|
|
}
|
|
|
|
/**
|
|
* Truncates or extends the specified file, updating the size of this file to
|
|
* become size.
|
|
*
|
|
* await Deno.truncate("hello.txt", 10);
|
|
*/
|
|
export async function truncate(name: string, len?: number): Promise<void> {
|
|
await sendAsync(...req(name, len));
|
|
}
|