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Direktori : /usr/share/node_modules/undici/lib/ |
Current File : //usr/share/node_modules/undici/lib/timers.js |
'use strict' let fastNow = Date.now() let fastNowTimeout const fastTimers = [] function onTimeout () { fastNow = Date.now() let len = fastTimers.length let idx = 0 while (idx < len) { const timer = fastTimers[idx] if (timer.state === 0) { timer.state = fastNow + timer.delay } else if (timer.state > 0 && fastNow >= timer.state) { timer.state = -1 timer.callback(timer.opaque) } if (timer.state === -1) { timer.state = -2 if (idx !== len - 1) { fastTimers[idx] = fastTimers.pop() } else { fastTimers.pop() } len -= 1 } else { idx += 1 } } if (fastTimers.length > 0) { refreshTimeout() } } function refreshTimeout () { if (fastNowTimeout && fastNowTimeout.refresh) { fastNowTimeout.refresh() } else { clearTimeout(fastNowTimeout) fastNowTimeout = setTimeout(onTimeout, 1e3) if (fastNowTimeout.unref) { fastNowTimeout.unref() } } } class Timeout { constructor (callback, delay, opaque) { this.callback = callback this.delay = delay this.opaque = opaque // -2 not in timer list // -1 in timer list but inactive // 0 in timer list waiting for time // > 0 in timer list waiting for time to expire this.state = -2 this.refresh() } refresh () { if (this.state === -2) { fastTimers.push(this) if (!fastNowTimeout || fastTimers.length === 1) { refreshTimeout() } } this.state = 0 } clear () { this.state = -1 } } module.exports = { setTimeout (callback, delay, opaque) { return delay < 1e3 ? setTimeout(callback, delay, opaque) : new Timeout(callback, delay, opaque) }, clearTimeout (timeout) { if (timeout instanceof Timeout) { timeout.clear() } else { clearTimeout(timeout) } } }