cloud-game/pkg/coordinator/worker.go
Sergey Stepanov cd056ee976
Bump to v3
2023-03-16 23:46:53 +03:00

87 lines
2.2 KiB
Go

package coordinator
import (
"fmt"
"sync/atomic"
"github.com/giongto35/cloud-game/v3/pkg/api"
"github.com/giongto35/cloud-game/v3/pkg/com"
)
type Worker struct {
com.SocketClient
com.RegionalClient
slotted
Addr string
PingServer string
Port string
RoomId string // room reference
Tag string
Zone string
}
func (w *Worker) HandleRequests(users *com.NetMap[*User]) {
// !to make a proper multithreading abstraction
w.OnPacket(func(p com.In) error {
switch p.T {
case api.RegisterRoom:
rq := api.Unwrap[api.RegisterRoomRequest](p.Payload)
if rq == nil {
return api.ErrMalformed
}
w.Log.Info().Msgf("set room [%v] = %v", w.Id(), *rq)
w.HandleRegisterRoom(*rq)
case api.CloseRoom:
rq := api.Unwrap[api.CloseRoomRequest](p.Payload)
if rq == nil {
return api.ErrMalformed
}
w.HandleCloseRoom(*rq)
case api.IceCandidate:
rq := api.Unwrap[api.WebrtcIceCandidateRequest](p.Payload)
if rq == nil {
return api.ErrMalformed
}
w.HandleIceCandidate(*rq, users)
default:
w.Log.Warn().Msgf("Unknown packet: %+v", p)
}
return nil
})
}
// In say whether some worker from this region (zone).
// Empty region always returns true.
func (w *Worker) In(region string) bool { return region == "" || region == w.Zone }
// slotted used for tracking user slots and the availability.
type slotted int32
// HasSlot checks if the current worker has a free slot to start a new game.
// Workers support only one game at a time, so it returns true in case if
// there are no players in the room (worker).
func (s *slotted) HasSlot() bool { return atomic.LoadInt32((*int32)(s)) == 0 }
// Reserve increments user counter of the worker.
func (s *slotted) Reserve() { atomic.AddInt32((*int32)(s), 1) }
// UnReserve decrements user counter of the worker.
func (s *slotted) UnReserve() {
if atomic.AddInt32((*int32)(s), -1) < 0 {
atomic.StoreInt32((*int32)(s), 0)
}
}
func (s *slotted) FreeSlots() { atomic.StoreInt32((*int32)(s), 0) }
func (w *Worker) Disconnect() {
w.SocketClient.Close()
w.RoomId = ""
w.FreeSlots()
}
func (w *Worker) PrintInfo() string {
return fmt.Sprintf("id: %v, addr: %v, port: %v, zone: %v, ping addr: %v, tag: %v",
w.Id(), w.Addr, w.Port, w.Zone, w.PingServer, w.Tag)
}