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104 lines
2.5 KiB
TypeScript
104 lines
2.5 KiB
TypeScript
// Copyright 2018 the Deno authors. All rights reserved. MIT license.
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import { assert } from "./util";
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import * as util from "./util";
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import { deno as fbs } from "gen/msg_generated";
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import { flatbuffers } from "flatbuffers";
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import { libdeno } from "./libdeno";
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let nextTimerId = 1;
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// tslint:disable-next-line:no-any
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export type TimerCallback = (...args: any[]) => void;
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interface Timer {
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id: number;
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cb: TimerCallback;
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interval: boolean;
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// tslint:disable-next-line:no-any
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args: any[];
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delay: number; // milliseconds
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}
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const timers = new Map<number, Timer>();
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/** @internal */
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export function onMessage(msg: fbs.TimerReady) {
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const timerReadyId = msg.id();
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const timerReadyDone = msg.done();
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const timer = timers.get(timerReadyId);
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if (!timer) {
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return;
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}
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timer.cb(...timer.args);
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if (timerReadyDone) {
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timers.delete(timerReadyId);
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}
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}
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function startTimer(
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cb: TimerCallback,
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delay: number,
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interval: boolean,
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// tslint:disable-next-line:no-any
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args: any[]
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): number {
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const timer = {
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id: nextTimerId++,
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interval,
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delay,
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args,
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cb
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};
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timers.set(timer.id, timer);
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util.log("timers.ts startTimer");
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// Send TimerStart message
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const builder = new flatbuffers.Builder();
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fbs.TimerStart.startTimerStart(builder);
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fbs.TimerStart.addId(builder, timer.id);
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fbs.TimerStart.addInterval(builder, timer.interval);
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fbs.TimerStart.addDelay(builder, timer.delay);
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const msg = fbs.TimerStart.endTimerStart(builder);
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fbs.Base.startBase(builder);
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fbs.Base.addMsg(builder, msg);
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fbs.Base.addMsgType(builder, fbs.Any.TimerStart);
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builder.finish(fbs.Base.endBase(builder));
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const resBuf = libdeno.send(builder.asUint8Array());
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assert(resBuf == null);
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return timer.id;
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}
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export function setTimeout(
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cb: TimerCallback,
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delay: number,
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// tslint:disable-next-line:no-any
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...args: any[]
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): number {
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return startTimer(cb, delay, false, args);
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}
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export function setInterval(
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cb: TimerCallback,
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delay: number,
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// tslint:disable-next-line:no-any
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...args: any[]
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): number {
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return startTimer(cb, delay, true, args);
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}
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export function clearTimer(id: number) {
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timers.delete(id);
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const builder = new flatbuffers.Builder();
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fbs.TimerClear.startTimerClear(builder);
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fbs.TimerClear.addId(builder, id);
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const msg = fbs.TimerClear.endTimerClear(builder);
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fbs.Base.startBase(builder);
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fbs.Base.addMsg(builder, msg);
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fbs.Base.addMsgType(builder, fbs.Any.TimerClear);
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builder.finish(fbs.Base.endBase(builder));
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const resBuf = libdeno.send(builder.asUint8Array());
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assert(resBuf == null);
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}
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