80 lines
2.1 KiB
TypeScript
80 lines
2.1 KiB
TypeScript
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*/
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@external("env", "wasm_create_timer")
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declare function wasm_create_timer(a: i32, b: bool, c: bool): i32;
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@external("env", "wasm_timer_cancel")
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declare function wasm_timer_cancel(a: i32): void;
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@external("env", "wasm_timer_restart")
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declare function wasm_timer_restart(a: i32, b: i32): void;
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@external("env", "wasm_get_sys_tick_ms")
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declare function wasm_get_sys_tick_ms(): i32;
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export var timer_list = new Array<user_timer>();
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export class user_timer {
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timer_id: i32 = 0;
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timeout: i32;
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period: bool = false;
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cb: () => void;
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constructor(cb: () => void, timeout: i32, period: bool) {
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this.cb = cb;
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this.timeout = timeout;
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this.period = period
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this.timer_id = timer_create(this.timeout, this.period, true);
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}
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}
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export function timer_create(a: i32, b: bool, c: bool): i32 {
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return wasm_create_timer(a, b, c);
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}
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export function setTimeout(cb: () => void, timeout: i32): user_timer {
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var timer = new user_timer(cb, timeout, false);
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timer_list.push(timer);
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return timer;
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}
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export function setInterval(cb: () => void, timeout: i32): user_timer {
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var timer = new user_timer(cb, timeout, true);
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timer_list.push(timer);
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return timer;
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}
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export function timer_cancel(timer: user_timer): void {
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wasm_timer_cancel(timer.timer_id);
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var i = 0;
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for (i = 0; i < timer_list.length; i++) {
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if (timer_list[i].timer_id == timer.timer_id)
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break;
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}
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timer_list.splice(i, 1);
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}
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export function timer_restart(timer: user_timer, interval: number): void {
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wasm_timer_restart(timer.timer_id, i32(interval));
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}
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export function now(): i32 {
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return wasm_get_sys_tick_ms();
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}
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// This export function need to be copied to the top application file
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//
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export function on_timer_callback(on_timer_id: i32): void {
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for (let i = 0; i < timer_list.length; i++) {
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if (timer_list[i].timer_id == on_timer_id) {
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timer_list[i].cb();
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}
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}
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} |