mirror of
https://github.com/scottlamb/moonfire-nvr.git
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dd66c7b0dd
Besides being more clear about what belongs to which, this helps with docker caching. The server and ui parts are only rebuilt when their respective subdirectories change. Extend this a bit further by making the webpack build not depend on the target architecture. And adding cache dirs so parts of the server and ui build process can be reused when layer-wide caching fails.
111 lines
3.2 KiB
JavaScript
111 lines
3.2 KiB
JavaScript
// vim: set et sw=2 ts=2:
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//
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// This file is part of Moonfire NVR, a security camera network video recorder.
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// Copyright (C) 2018 The Moonfire NVR Authors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// In addition, as a special exception, the copyright holders give
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// permission to link the code of portions of this program with the
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// OpenSSL library under certain conditions as described in each
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// individual source file, and distribute linked combinations including
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// the two.
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//
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// You must obey the GNU General Public License in all respects for all
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// of the code used other than OpenSSL. If you modify file(s) with this
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// exception, you may extend this exception to your version of the
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// file(s), but you are not obligated to do so. If you do not wish to do
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// so, delete this exception statement from your version. If you delete
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// this exception statement from all source files in the program, then
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// also delete it here.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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import Range from './Range';
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/**
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* WeakMap that keeps our private data.
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*
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* @type {WeakMap}
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*/
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const _range = new WeakMap();
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/**
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* Class like Range to represent ranges over timestamps in 90k format.
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*
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* A composed member of the Range class is use for the heavy lifting, while
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* this class provides a different interface.
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*/
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export default class Range90k {
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/**
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* Create a range.
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*
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* @param {Number} low Low value (inclusive) in range.
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* @param {Number} high High value (inclusive) in range.
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*/
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constructor(low, high) {
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_range.set(this, new Range(low, high));
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}
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/**
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* Return the range's start time.
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*
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* @return {Number} Number in 90k units
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*/
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get startTime90k() {
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return _range.get(this).low;
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}
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/**
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* Return the range's end time.
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*
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* @return {Number} Number in 90k units
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*/
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get endTime90k() {
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return _range.get(this).high;
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}
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/**
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* Return the range's duration.
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*
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* @return {Number} Number in 90k units
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*/
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get duration90k() {
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return _range.get(this).size;
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}
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/**
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* Create a new range by trimming the current range against
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* another.
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*
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* The returned range will lie completely within the provided range.
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*
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* @param {Range90k} against Range the be used for limits
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* @return {Range90k} The trimmed range (always a new object)
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*/
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trimmed(against) {
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return new Range90k(
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Math.max(this.startTime90k, against.startTime90k),
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Math.min(this.endTime90k, against.endTime90k)
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);
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}
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/**
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* Return a copy of this range.
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*
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* @return {Range90k} A copy of this range object.
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*/
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clone() {
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return new Range90k(this.startTime90k, this.endTime90k);
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}
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}
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