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author | Florian Dold <florian.dold@gmail.com> | 2017-05-27 22:56:35 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2017-05-27 22:56:35 +0200 |
commit | bd17ead09a1baad43e8947d729f43257b4fb6d08 (patch) | |
tree | 6163df4124db907cf1e62be4e1ffc458edd85d8a /src/timer.ts | |
parent | 478a089e521de81ca47fc54518bc6a241823d9ae (diff) | |
download | wallet-core-bd17ead09a1baad43e8947d729f43257b4fb6d08.tar.xz |
missing files
Diffstat (limited to 'src/timer.ts')
-rw-r--r-- | src/timer.ts | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/timer.ts b/src/timer.ts new file mode 100644 index 000000000..105fc8c7a --- /dev/null +++ b/src/timer.ts @@ -0,0 +1,77 @@ +/* + This file is part of TALER + (C) 2017 GNUnet e.V. + + TALER 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, or (at your option) any later version. + + TALER 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 + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +/** + * Cross-platform timers. + * + * NodeJS and the browser use slightly different timer API, + * this abstracts over these differences. + */ + +/** + * Cancelable timer. + */ +export interface TimerHandle { + clear(): void; +} + +class IntervalHandle { + constructor(public h: any) { + } + + clear() { + clearTimeout(this.h); + } +} + +class TimeoutHandle { + constructor(public h: any) { + } + + clear() { + clearTimeout(this.h); + } +} + +/** + * Get a performance counter in milliseconds. + */ +export let performanceNow = (() => { + if (typeof "process" !== "undefined") { + return () => { + const t = process.hrtime(); + return t[0] * 1e9 + t[1]; + } + } else if (typeof "performance" !== "undefined") { + return () => performance.now(); + } else { + return () => 0; + } +})(); + +/** + * Call a function every time the delay given in milliseconds passes. + */ +export function every(delayMs: number, callback: () => void): TimerHandle { + return new IntervalHandle(setInterval(callback, delayMs)); +} + +/** + * Call a function after the delay given in milliseconds passes. + */ +export function after(delayMs: number, callback: () => void): TimerHandle { + return new TimeoutHandle(setInterval(callback, delayMs)); +} |