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feat(unstable): add Deno.fsyncSync and fsync (#6411)

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Casper Beyer 2020-06-21 21:29:44 +08:00 • committed by GitHub
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24
cli/js/lib.deno.unstable.d.ts vendored
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@ -1118,4 +1118,28 @@ declare namespace Deno {
* ```
*/
export function ftruncate(rid: number, len?: number): Promise<void>;
/** **UNSTABLE**: New API, yet to be vetted.
* Synchronously flushes any pending data and metadata operations of the given file stream to disk.
* ```ts
* const file = Deno.openSync("my_file.txt", { read: true, write: true, create: true });
* Deno.writeSync(file.rid, new TextEncoder().encode("Hello World"));
* Deno.ftruncateSync(file.rid, 1);
* Deno.fsyncSync(file.rid);
* console.log(new TextDecoder().decode(Deno.readFileSync("my_file.txt"))); // H
* ```
*/
export function fsyncSync(rid: number): void;
/** **UNSTABLE**: New API, yet to be vetted.
* Flushes any pending data and metadata operations of the given file stream to disk.
* ```ts
* const file = await Deno.open("my_file.txt", { read: true, write: true, create: true });
* await Deno.write(file.rid, new TextEncoder().encode("Hello World"));
* await Deno.ftruncate(file.rid, 1);
* await Deno.fsync(file.rid);
* console.log(new TextDecoder().decode(await Deno.readFile("my_file.txt"))); // H
* ```
*/
export function fsync(rid: number): Promise<void>;
}