Files
livekit/pkg/routing/interfaces.go
David Colburn 0c8fe361b2 Small refactor (#148)
* small refactor

* extra line

* fix room allocator test

* selector fakes not used

* keep decisions out of router

* put nodeId logic back

* fix room allocator test
2021-10-18 21:49:16 -05:00

84 lines
2.6 KiB
Go

package routing
import (
"context"
"github.com/go-redis/redis/v8"
"github.com/livekit/protocol/logger"
livekit "github.com/livekit/protocol/proto"
"google.golang.org/protobuf/proto"
"github.com/livekit/livekit-server/pkg/config"
)
//go:generate go run github.com/maxbrunsfeld/counterfeiter/v6 -generate
// MessageSink is an abstraction for writing protobuf messages and having them read by a MessageSource,
// potentially on a different node via a transport
//counterfeiter:generate . MessageSink
type MessageSink interface {
WriteMessage(msg proto.Message) error
Close()
OnClose(f func())
}
//counterfeiter:generate . MessageSource
type MessageSource interface {
// ReadChan exposes a one way channel to make it easier to use with select
ReadChan() <-chan proto.Message
}
type ParticipantInit struct {
Identity string
Metadata string
Reconnect bool
Permission *livekit.ParticipantPermission
AutoSubscribe bool
Hidden bool
Client *livekit.ClientInfo
}
type NewParticipantCallback func(ctx context.Context, roomName string, pi ParticipantInit, requestSource MessageSource, responseSink MessageSink)
type RTCMessageCallback func(ctx context.Context, roomName, identity string, msg *livekit.RTCNodeMessage)
// Router allows multiple nodes to coordinate the participant session
//counterfeiter:generate . Router
type Router interface {
RegisterNode() error
UnregisterNode() error
RemoveDeadNodes() error
GetNode(nodeId string) (*livekit.Node, error)
ListNodes() ([]*livekit.Node, error)
GetNodeForRoom(ctx context.Context, roomName string) (*livekit.Node, error)
SetNodeForRoom(ctx context.Context, roomName, nodeId string) error
ClearRoomState(ctx context.Context, roomName string) error
// StartParticipantSignal participant signal connection is ready to start
StartParticipantSignal(ctx context.Context, roomName string, pi ParticipantInit) (connectionId string, reqSink MessageSink, resSource MessageSource, err error)
// WriteRTCMessage sends a message to the RTC node
WriteRTCMessage(ctx context.Context, roomName, identity string, msg *livekit.RTCNodeMessage) error
// OnNewParticipantRTC is called to start a new participant's RTC connection
OnNewParticipantRTC(callback NewParticipantCallback)
// OnRTCMessage is called to execute actions on the RTC node
OnRTCMessage(callback RTCMessageCallback)
Start() error
Drain()
Stop()
}
func CreateRouter(conf *config.Config, rc *redis.Client, node LocalNode) Router {
if rc != nil {
return NewRedisRouter(node, rc)
}
// local routing and store
logger.Infow("using single-node routing")
return NewLocalRouter(node)
}