mirror of
https://github.com/cgrates/cgrates.git
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113 lines
2.9 KiB
Go
113 lines
2.9 KiB
Go
/*
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Rating system designed to be used in VoIP Carriers World
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Copyright (C) 2013 ITsysCOM
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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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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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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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*/
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package scheduler
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import (
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"fmt"
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"sort"
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"sync"
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"time"
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"github.com/cgrates/cgrates/engine"
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)
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type Scheduler struct {
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queue engine.ActionTimingPriotityList
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timer *time.Timer
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restartLoop chan bool
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sync.Mutex
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}
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func NewScheduler() *Scheduler {
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return &Scheduler{restartLoop: make(chan bool)}
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}
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func (s *Scheduler) Loop() {
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for {
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for len(s.queue) == 0 { //hang here if empty
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<-s.restartLoop
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}
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s.Lock()
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a0 := s.queue[0]
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now := time.Now()
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if a0.GetNextStartTime(now).Equal(now) || a0.GetNextStartTime(now).Before(now) {
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engine.Logger.Debug(fmt.Sprintf("%v - %v", a0.Tag, a0.Timing))
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go a0.Execute()
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s.queue = append(s.queue, a0)
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s.queue = s.queue[1:]
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sort.Sort(s.queue)
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s.Unlock()
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} else {
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s.Unlock()
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d := a0.GetNextStartTime(now).Sub(now)
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// engine.Logger.Info(fmt.Sprintf("Timer set to wait for %v", d))
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s.timer = time.NewTimer(d)
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select {
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case <-s.timer.C:
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// timer has expired
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engine.Logger.Info(fmt.Sprintf("Time for action on %v", a0))
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case <-s.restartLoop:
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// nothing to do, just continue the loop
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}
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}
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}
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}
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func (s *Scheduler) LoadActionTimings(storage engine.AccountingStorage) {
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actionTimings, err := storage.GetAllActionTimings()
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if err != nil {
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engine.Logger.Warning(fmt.Sprintf("Cannot get action timings: %v", err))
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}
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// recreate the queue
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s.Lock()
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s.queue = engine.ActionTimingPriotityList{}
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for key, ats := range actionTimings {
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toBeSaved := false
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isAsap := false
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newAts := make([]*engine.ActionTiming, 0) // will remove the one time runs from the database
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for _, at := range ats {
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isAsap = at.CheckForASAP()
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toBeSaved = toBeSaved || isAsap
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if at.IsOneTimeRun() {
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engine.Logger.Info(fmt.Sprintf("Time for one time action on %v", key))
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go at.Execute()
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// do not append it to the newAts list to be saved
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} else {
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s.queue = append(s.queue, at)
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newAts = append(newAts, at)
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}
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}
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if toBeSaved {
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engine.AccLock.Guard(engine.ACTION_TIMING_PREFIX, func() (float64, error) {
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storage.SetActionTimings(key, newAts)
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return 0, nil
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})
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}
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}
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sort.Sort(s.queue)
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s.Unlock()
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}
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func (s *Scheduler) Restart() {
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s.restartLoop <- true
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if s.timer != nil {
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s.timer.Stop()
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}
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}
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