Jan Dittberner
c2eef9cf7c
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This commit is a refactoring of code that has been located in the main package. We introduce separate packages for the main application, jobs, notifications, and request handlers. Dependencies are injected from the main application, this will make testing easier.
93 lines
2 KiB
Go
93 lines
2 KiB
Go
/*
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Copyright 2017-2022 CAcert Inc.
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SPDX-License-Identifier: Apache-2.0
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 jobs
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import (
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"log"
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"os"
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)
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type JobScheduler struct {
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infoLogger *log.Logger
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errorLogger *log.Logger
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jobs map[JobIdentifier]Job
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rescheduleChannel chan JobIdentifier
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quitChannel chan struct{}
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}
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type SchedulerOption func(scheduler *JobScheduler)
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func NewJobScheduler(opts ...SchedulerOption) *JobScheduler {
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rescheduleChannel := make(chan JobIdentifier, 1)
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jobScheduler := &JobScheduler{
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infoLogger: log.New(os.Stdout, "", 0),
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errorLogger: log.New(os.Stderr, "", 0),
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jobs: make(map[JobIdentifier]Job, 2),
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rescheduleChannel: rescheduleChannel,
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quitChannel: make(chan struct{}),
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}
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for _, o := range opts {
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o(jobScheduler)
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}
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return jobScheduler
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}
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func SchedulerLog(infoLog, errorLog *log.Logger) SchedulerOption {
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return func(s *JobScheduler) {
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s.infoLogger = infoLog
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s.errorLogger = errorLog
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}
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}
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func (js *JobScheduler) Schedule() {
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for _, job := range js.jobs {
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job.Schedule()
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}
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for {
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select {
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case jobID := <-js.rescheduleChannel:
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js.jobs[jobID].Schedule()
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case <-js.quitChannel:
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for _, job := range js.jobs {
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job.Stop()
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}
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js.infoLogger.Print("stop job scheduler")
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return
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}
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}
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}
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func (js *JobScheduler) AddJob(job Job) {
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js.jobs[job.Identifier()] = job
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}
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func (js *JobScheduler) Quit() {
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js.quitChannel <- struct{}{}
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}
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func (js *JobScheduler) Reschedule(jobIDs ...JobIdentifier) {
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for i := range jobIDs {
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js.rescheduleChannel <- jobIDs[i]
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}
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}
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