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manager.go
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manager.go
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package recorders
import (
"context"
"sync"
"time"
"github.com/hr3lxphr6j/bililive-go/src/configs"
"github.com/hr3lxphr6j/bililive-go/src/instance"
"github.com/hr3lxphr6j/bililive-go/src/interfaces"
"github.com/hr3lxphr6j/bililive-go/src/listeners"
"github.com/hr3lxphr6j/bililive-go/src/live"
"github.com/hr3lxphr6j/bililive-go/src/pkg/events"
)
func NewManager(ctx context.Context) Manager {
rm := &manager{
savers: make(map[live.ID]Recorder),
cfg: instance.GetInstance(ctx).Config,
}
instance.GetInstance(ctx).RecorderManager = rm
return rm
}
type Manager interface {
interfaces.Module
AddRecorder(ctx context.Context, live live.Live) error
RemoveRecorder(ctx context.Context, liveId live.ID) error
RestartRecorder(ctx context.Context, liveId live.Live) error
GetRecorder(ctx context.Context, liveId live.ID) (Recorder, error)
HasRecorder(ctx context.Context, liveId live.ID) bool
}
// for test
var (
newRecorder = NewRecorder
)
type manager struct {
lock sync.RWMutex
savers map[live.ID]Recorder
cfg *configs.Config
}
func (m *manager) registryListener(ctx context.Context, ed events.Dispatcher) {
ed.AddEventListener(listeners.LiveStart, events.NewEventListener(func(event *events.Event) {
live := event.Object.(live.Live)
if err := m.AddRecorder(ctx, live); err != nil {
instance.GetInstance(ctx).Logger.Errorf("failed to add recorder, err: %v", err)
}
}))
ed.AddEventListener(listeners.RoomNameChanged, events.NewEventListener(func(event *events.Event) {
live := event.Object.(live.Live)
if !m.HasRecorder(ctx, live.GetLiveId()) {
return
}
if err := m.RestartRecorder(ctx, live); err != nil {
instance.GetInstance(ctx).Logger.Errorf("failed to cronRestart recorder, err: %v", err)
}
}))
removeEvtListener := events.NewEventListener(func(event *events.Event) {
live := event.Object.(live.Live)
if !m.HasRecorder(ctx, live.GetLiveId()) {
return
}
if err := m.RemoveRecorder(ctx, live.GetLiveId()); err != nil {
instance.GetInstance(ctx).Logger.Errorf("failed to remove recorder, err: %v", err)
}
})
ed.AddEventListener(listeners.LiveEnd, removeEvtListener)
ed.AddEventListener(listeners.ListenStop, removeEvtListener)
}
func (m *manager) Start(ctx context.Context) error {
inst := instance.GetInstance(ctx)
if inst.Config.RPC.Enable || len(inst.Lives) > 0 {
inst.WaitGroup.Add(1)
}
m.registryListener(ctx, inst.EventDispatcher.(events.Dispatcher))
return nil
}
func (m *manager) Close(ctx context.Context) {
m.lock.Lock()
defer m.lock.Unlock()
for id, recorder := range m.savers {
recorder.Close()
delete(m.savers, id)
}
inst := instance.GetInstance(ctx)
inst.WaitGroup.Done()
}
func (m *manager) AddRecorder(ctx context.Context, live live.Live) error {
m.lock.Lock()
defer m.lock.Unlock()
if _, ok := m.savers[live.GetLiveId()]; ok {
return ErrRecorderExist
}
recorder, err := newRecorder(ctx, live)
if err != nil {
return err
}
m.savers[live.GetLiveId()] = recorder
if maxDur := m.cfg.VideoSplitStrategies.MaxDuration; maxDur != 0 {
go m.cronRestart(ctx, live)
}
return recorder.Start(ctx)
}
func (m *manager) cronRestart(ctx context.Context, live live.Live) {
recorder, err := m.GetRecorder(ctx, live.GetLiveId())
if err != nil {
return
}
if time.Now().Sub(recorder.StartTime()) < m.cfg.VideoSplitStrategies.MaxDuration {
time.AfterFunc(time.Minute/4, func() {
m.cronRestart(ctx, live)
})
return
}
if err := m.RestartRecorder(ctx, live); err != nil {
return
}
}
func (m *manager) RestartRecorder(ctx context.Context, live live.Live) error {
if err := m.RemoveRecorder(ctx, live.GetLiveId()); err != nil {
return err
}
if err := m.AddRecorder(ctx, live); err != nil {
return err
}
return nil
}
func (m *manager) RemoveRecorder(ctx context.Context, liveId live.ID) error {
m.lock.Lock()
defer m.lock.Unlock()
recorder, ok := m.savers[liveId]
if !ok {
return ErrRecorderNotExist
}
recorder.Close()
delete(m.savers, liveId)
return nil
}
func (m *manager) GetRecorder(ctx context.Context, liveId live.ID) (Recorder, error) {
m.lock.RLock()
defer m.lock.RUnlock()
r, ok := m.savers[liveId]
if !ok {
return nil, ErrRecorderNotExist
}
return r, nil
}
func (m *manager) HasRecorder(ctx context.Context, liveId live.ID) bool {
m.lock.RLock()
defer m.lock.RUnlock()
_, ok := m.savers[liveId]
return ok
}