mirror of
https://github.com/featurebasedb/featurebase.git
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80 lines
2.5 KiB
Go
80 lines
2.5 KiB
Go
// Copyright 2017 Pilosa Corp.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Package server contains the `pilosa server` subcommand which runs Pilosa
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// itself. The purpose of this package is to define an easily tested Command
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// object which handles interpreting configuration and setting up all the
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// objects that Pilosa needs.
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package server
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import (
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"os"
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"time"
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"github.com/beevik/ntp"
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"github.com/pilosa/pilosa/v2"
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)
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func (m *Command) trialVersion() {
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if pilosa.TrialDeadline != "" {
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endTime, err := time.Parse("2006-01-02", pilosa.TrialDeadline)
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if err != nil {
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m.logger.Printf("parsing trial deadline: %v", err)
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os.Exit(1)
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}
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go m.dailyCheck(endTime)
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}
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}
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const trialCheckInterval = 24 * time.Hour
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// dailyCheck runs in the background while a trial version of Molecula is being run, displaying daily reminders of the remaining days
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func (m *Command) dailyCheck(endTime time.Time) {
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ticker := time.NewTicker(trialCheckInterval)
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startTime, err := m.ntpServerTime(4)
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if err != nil {
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m.logger.Printf("reading ntp server time %v", err)
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os.Exit(1)
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}
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runDuration := endTime.Sub(startTime)
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if runDuration <= 0 {
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m.logger.Printf("Trial edition of Molecula has expired, exiting now!")
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os.Exit(1)
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}
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for range ticker.C {
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runningDuration := time.Since(startTime)
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m.logger.Printf("Current time remaining in trial: %v", runDuration-runningDuration)
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if runningDuration >= runDuration {
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m.logger.Printf("Trial edition of Molecula has expired, exiting now!")
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os.Exit(1)
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}
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}
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}
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const ntpurl = "0.beevik-ntp.pool.ntp.org"
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const ntpRetryDelay = 100 * time.Millisecond
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// ntpServerTime attempts to reach ntp servers with delays between each attempt, returning the time value of the first connected server
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func (m *Command) ntpServerTime(retries int) (time.Time, error) {
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t, err := ntp.Time(ntpurl)
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if err != nil && retries <= 0 {
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return t, err
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}
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if err != nil {
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time.Sleep(ntpRetryDelay)
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return m.ntpServerTime(retries - 1)
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}
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return t, nil
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}
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