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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
import { setTimeout } from "resource://gre/modules/Timer.sys.mjs";
export async function runBackgroundTask(commandLine) {
let pid = Services.appinfo.processID;
let finalProcessDelaySec = 10;
let waitTimeoutSec = 30;
let s = "";
for (let i = 0; i < commandLine.length; i++) {
if (i > 0) {
s += " ";
}
s += "'" + commandLine.getArgument(i) + "'";
}
console.log(`runBackgroundTask: automaticrestart ${pid}: '${s}'`);
let updateProcessor = Cc[
"@mozilla.org/updates/update-processor;1"
].createInstance(Ci.nsIUpdateProcessor);
// When this background task is first called by test_backgroundtask_automaticrestart.js,
// it will enter the else-if "no-wait" block and launch a new background task. That
// task then re-enters this code in the if "restart-pid" block, and writes to the file.
// This file is then read by the original test file to verify that the new background
// task was launched and completed successfully.
if (commandLine.findFlag("restart-pid", false) != -1) {
await IOUtils.writeUTF8(commandLine.getArgument(1), `written from ${pid}`, {
mode: "overwrite",
});
// This timeout is meant to activate the waitForProcessExit consistently.
// There shouldn't be any race conditions here as we always wait for
// this process to exit before reading the file, but this makes what's
// happening a bit more apparent and prevents cases where this process
// can exit before we hit the waitForProcessExit call. This isn't an
// error case but it defeats the purpose of the test.
return new Promise(resolve =>
setTimeout(resolve, finalProcessDelaySec * 1000)
);
} else if (commandLine.getArgument(0) == "-no-wait") {
let newPid =
updateProcessor.attemptAutomaticApplicationRestartWithLaunchArgs([
"-test-only-automatic-restart-no-wait",
]);
console.log(
`runBackgroundTask: spawned automatic restart task from ${pid} with pid ${newPid}`
);
updateProcessor.waitForProcessExit(newPid, waitTimeoutSec * 1000);
}
return 0;
}