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jobwrapper.go
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/
jobwrapper.go
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package mutex
import (
"fmt"
"github.com/robfig/cron/v3"
"github.com/go-kratos-ecosystem/components/v2/features"
)
type Job interface {
cron.Job
features.Slug
IsMutexJob()
}
type MutexJob struct{} //nolint:revive
func (m *MutexJob) IsMutexJob() {}
type ExpirableJob features.Expirable
func SkipIfStillMutexRunning(opts ...Option) cron.JobWrapper {
o := newOptions(opts...)
return func(job cron.Job) cron.Job {
return cron.FuncJob(func() {
j, ok := job.(Job)
if !ok {
o.logger.Info(fmt.Sprintf("crontab/jobwrapper/mutex: the job %v is not a mutex job, continue to run", job))
job.Run()
return
}
slug := o.prefix + j.Slug()
expiration := o.expiration
if ej, ok := job.(ExpirableJob); ok {
expiration = ej.Expiration()
}
if err := o.locker.Lock(slug, expiration); err != nil {
o.logger.Info(fmt.Sprintf("crontab/jobwrapper/mutex: skip job [%s], because still mutex lock", j.Slug()))
return
}
defer o.locker.Unlock(slug) //nolint:errcheck
job.Run()
})
}
}