mediamtx/internal/recordcleaner/cleaner.go

135 lines
2.6 KiB
Go

// Package recordcleaner contains the recording cleaner.
package recordcleaner
import (
"context"
"os"
"time"
"github.com/bluenviron/mediamtx/internal/conf"
"github.com/bluenviron/mediamtx/internal/logger"
"github.com/bluenviron/mediamtx/internal/recordstore"
)
var timeNow = time.Now
// Cleaner removes expired recording segments from disk.
type Cleaner struct {
PathConfs map[string]*conf.Path
Parent logger.Writer
ctx context.Context
ctxCancel func()
chReloadConf chan map[string]*conf.Path
done chan struct{}
}
// Initialize initializes a Cleaner.
func (c *Cleaner) Initialize() {
c.ctx, c.ctxCancel = context.WithCancel(context.Background())
c.chReloadConf = make(chan map[string]*conf.Path)
c.done = make(chan struct{})
go c.run()
}
// Close closes the Cleaner.
func (c *Cleaner) Close() {
c.ctxCancel()
<-c.done
}
// Log implements logger.Writer.
func (c *Cleaner) Log(level logger.Level, format string, args ...interface{}) {
c.Parent.Log(level, "[record cleaner]"+format, args...)
}
// ReloadPathConfs is called by core.Core.
func (c *Cleaner) ReloadPathConfs(pathConfs map[string]*conf.Path) {
select {
case c.chReloadConf <- pathConfs:
case <-c.ctx.Done():
}
}
func (c *Cleaner) run() {
defer close(c.done)
c.doRun() //nolint:errcheck
for {
select {
case <-time.After(c.cleanInterval()):
c.doRun()
case cnf := <-c.chReloadConf:
c.PathConfs = cnf
case <-c.ctx.Done():
return
}
}
}
func (c *Cleaner) atLeastOneRecordDeleteAfter() bool {
for _, e := range c.PathConfs {
if e.RecordDeleteAfter != 0 {
return true
}
}
return false
}
func (c *Cleaner) cleanInterval() time.Duration {
if !c.atLeastOneRecordDeleteAfter() {
return 365 * 24 * time.Hour
}
interval := 30 * 60 * time.Second
for _, e := range c.PathConfs {
if e.RecordDeleteAfter != 0 &&
interval > (time.Duration(e.RecordDeleteAfter)/2) {
interval = time.Duration(e.RecordDeleteAfter) / 2
}
}
return interval
}
func (c *Cleaner) doRun() {
now := timeNow()
pathNames := recordstore.FindAllPathsWithSegments(c.PathConfs)
for _, pathName := range pathNames {
c.processPath(now, pathName) //nolint:errcheck
}
}
func (c *Cleaner) processPath(now time.Time, pathName string) error {
pathConf, _, err := conf.FindPathConf(c.PathConfs, pathName)
if err != nil {
return err
}
if pathConf.RecordDeleteAfter == 0 {
return nil
}
segments, err := recordstore.FindSegments(pathConf, pathName)
if err != nil {
return err
}
for _, seg := range segments {
if now.Sub(seg.Start) > time.Duration(pathConf.RecordDeleteAfter) {
c.Log(logger.Debug, "removing %s", seg.Fpath)
os.Remove(seg.Fpath)
}
}
return nil
}