feat(std): add setClockInterval, clearClockInterval (#2)

Author: nekomeowww

packages/std/src/index.ts

@@ -1,4 +1,5 @@
 export * from './base64'
 export * from './merge'
+export * from './set-interval'
 export * from './sleep'
 export * from './trampoline'

packages/std/src/set-interval/clock.ts

@@ -0,0 +1,41 @@
+const timerMap = new Map<number, ReturnType<typeof setTimeout>>()
+
+export const setClockInterval = (func: (...args: any[]) => any, interval: number) => {
+  let start: number
+  let tick: number
+  let clockTimer: ReturnType<typeof setTimeout>
+
+  // eslint-disable-next-line sonarjs/pseudo-random
+  const timerId = Math.floor(Math.random() * 1e10)
+
+  const recurFunc = () => {
+    func()
+    const realExecuteTime = new Date().getTime()
+    if (!start) {
+      start = realExecuteTime
+    }
+
+    tick = tick || start
+    const diff = realExecuteTime - tick
+    tick += interval
+
+    // Since setTimeout is not accurate, we need to adjust the interval
+    // eslint-disable-next-line @masknet/no-timer
+    clockTimer = setTimeout(recurFunc, interval - diff)
+    timerMap.set(timerId, clockTimer)
+  }
+
+  recurFunc()
+  return timerId
+}
+
+export const clearClockInterval = (timerId: number) => {
+  const timer = timerMap.get(timerId)
+  if (timer == null) {
+    return
+  }
+
+  // eslint-disable-next-line @masknet/no-timer
+  clearTimeout(timer)
+  timerMap.delete(timerId)
+}

packages/std/src/set-interval/index.ts

@@ -0,0 +1 @@
+export * from './clock'