98 lines
2.5 KiB
Go
98 lines
2.5 KiB
Go
/*
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* Copyright 2020 The Dragonfly Authors
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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 gc
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import (
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"strings"
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"sync"
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"time"
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logger "d7y.io/dragonfly/v2/internal/dflog"
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)
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type Server struct {
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done chan struct{}
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wg *sync.WaitGroup
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}
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func New() (*Server, error) {
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return &Server{
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done: make(chan struct{}),
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wg: new(sync.WaitGroup),
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}, nil
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}
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func (server *Server) Serve() error {
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logger.Info("====starting gc jobs====")
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for name, executorWrapper := range gcExecutorWrappers {
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server.wg.Add(1)
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// start a goroutine to gc
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go func(name string, wrapper *ExecutorWrapper) {
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defer server.wg.Done()
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logger.Debugf("start %s gc mission， gc initialDelay: %s, gc initial interval: %s", name, wrapper.gcInitialDelay, wrapper.gcInterval)
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// delay executing GC after initialDelay
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time.Sleep(wrapper.gcInitialDelay)
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// execute the GC by fixed delay
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ticker := time.NewTicker(wrapper.gcInterval)
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for {
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select {
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case <-server.done:
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logger.Infof("exit %s gc task", name)
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return
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case <-ticker.C:
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if err := wrapper.gcExecutor.GC(); err != nil {
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logger.Errorf("%s gc task execute failed: %v", name, err)
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}
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}
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}
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}(name, executorWrapper)
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}
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server.wg.Wait()
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return nil
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}
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func (server *Server) Shutdown() error {
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defer logger.Infof("====stopped gc server====")
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server.done <- struct{}{}
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server.wg.Wait()
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return nil
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}
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type Executor interface {
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GC() error
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}
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type ExecutorWrapper struct {
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gcInitialDelay time.Duration
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gcInterval time.Duration
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gcExecutor Executor
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}
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var (
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gcExecutorWrappers = make(map[string]*ExecutorWrapper)
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)
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// Register a gc task
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func Register(name string, gcInitialDelay time.Duration, gcInterval time.Duration, gcExecutor Executor) {
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gcExecutorWrappers[strings.ToLower(name)] = &ExecutorWrapper{
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gcInitialDelay: gcInitialDelay,
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gcInterval: gcInterval,
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gcExecutor: gcExecutor,
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}
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logger.Infof("register %s gc task, gcInitialDelay %s, gcInterval %s", name, gcInitialDelay, gcInterval)
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}
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