syndicate-js/packages/core/src/runtime/task.ts

38 lines
1.4 KiB
TypeScript

//---------------------------------------------------------------------------
// @syndicate-lang/core, an implementation of Syndicate dataspaces for JS.
// Copyright (C) 2016-2021 Tony Garnock-Jones <tonyg@leastfixedpoint.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//---------------------------------------------------------------------------
const LIMIT = 25000;
let taskCounter = 0;
let delayedTasks: Array<() => void> = [];
export function queueTask(f: () => void) {
taskCounter++;
if (taskCounter === LIMIT) {
setTimeout(() => {
taskCounter = 0;
delayedTasks.forEach(queueMicrotask);
delayedTasks = [];
}, 0);
}
if (taskCounter >= LIMIT) {
delayedTasks.push(f);
} else {
queueMicrotask(f);
}
}