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109 lines
2.8 KiB
109 lines
2.8 KiB
// Copyright © 2023 OpenIM. All rights reserved.
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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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package tools
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import (
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"context"
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"fmt"
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"os"
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"os/signal"
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"syscall"
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"time"
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"github.com/OpenIMSDK/tools/errs"
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"github.com/openimsdk/open-im-server/v3/pkg/common/config"
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"github.com/openimsdk/open-im-server/v3/pkg/common/db/cache"
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"github.com/redis/go-redis/v9"
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"github.com/robfig/cron/v3"
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)
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func StartTask(config *config.GlobalConfig) error {
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fmt.Println("cron task start, config", config.ChatRecordsClearTime)
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msgTool, err := InitMsgTool(config)
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if err != nil {
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return err
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}
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msgTool.convertTools()
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rdb, err := cache.NewRedis(config)
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if err != nil {
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return err
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}
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// register cron tasks
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var crontab = cron.New()
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fmt.Printf("Start chatRecordsClearTime cron task, cron config: %s\n", config.ChatRecordsClearTime)
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_, err = crontab.AddFunc(config.ChatRecordsClearTime, cronWrapFunc(config, rdb, "cron_clear_msg_and_fix_seq", msgTool.AllConversationClearMsgAndFixSeq))
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if err != nil {
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return errs.Wrap(err)
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}
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fmt.Printf("Start msgDestruct cron task, cron config: %s\n", config.MsgDestructTime)
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_, err = crontab.AddFunc(config.MsgDestructTime, cronWrapFunc(config, rdb, "cron_conversations_destruct_msgs", msgTool.ConversationsDestructMsgs))
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if err != nil {
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return errs.Wrap(err, "cron_conversations_destruct_msgs")
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}
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// start crontab
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crontab.Start()
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sigs := make(chan os.Signal, 1)
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signal.Notify(sigs, syscall.SIGTERM)
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<-sigs
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// stop crontab, Wait for the running task to exit.
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ctx := crontab.Stop()
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select {
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case <-ctx.Done():
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// graceful exit
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case <-time.After(15 * time.Second):
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// forced exit on timeout
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}
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return nil
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}
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// netlock redis lock.
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func netlock(rdb redis.UniversalClient, key string, ttl time.Duration) bool {
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value := "used"
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ok, err := rdb.SetNX(context.Background(), key, value, ttl).Result() // nolint
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if err != nil {
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// when err is about redis server, return true.
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return false
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}
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return ok
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}
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func cronWrapFunc(config *config.GlobalConfig, rdb redis.UniversalClient, key string, fn func()) func() {
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enableCronLocker := config.EnableCronLocker
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return func() {
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// if don't enable cron-locker, call fn directly.
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if !enableCronLocker {
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fn()
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return
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}
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// when acquire redis lock, call fn().
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if netlock(rdb, key, 5*time.Second) {
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fn()
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}
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}
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}
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