Parallel File Reads

Starts asynchronous file work, does other work, then awaits the results.

Path

docs/examples/async/parallel_file_reads.gb

Category

Async

This example shows the important async pattern: creating tasks first, continuing with useful work, and awaiting only when the results are needed.

Source

import async.io as aio;
import collections;
import io;

let firstPath = io.tempFile("geb-first-*.txt");
let secondPath = io.tempFile("geb-second-*.txt");

await aio.writeText(firstPath, "alpha");
await aio.writeText(secondPath, "beta");

let firstTask = aio.readText(firstPath);
let secondTask = aio.readText(secondPath);

for (i in collections.range(1, 4, 1)) {
    io.println("working " + (i as string));
}

io.println(await firstTask);
io.println(await secondTask);

io.remove(firstPath);
io.remove(secondPath);