/
room.go
81 lines (68 loc) · 1.77 KB
/
room.go
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package room
import (
"sync"
"errors"
"google.golang.org/grpc"
pb "github.com/ADreamean/ddz-backend/proto"
"context"
"github.com/ADreamean/ddz-backend/user"
"github.com/ADreamean/ddz-backend/until/redis"
"log"
)
var userFull = errors.New("人数已满")
var roomNotExist = errors.New("房间不存在")
type Server struct {
rooms map[int32]*Room
lock sync.Mutex
}
func (s *Server) Join(ctx context.Context, info *pb.RoomJoinRequest) (*pb.RoomInfo, error) {
s.lock.Lock()
defer s.lock.Unlock()
room, ok := s.rooms[info.Id]
if !ok {
return &pb.RoomInfo{Id: 0, Users: []*pb.User{}}, nil
}
room.users = append(room.users, user.User{Id: 0, Name: ""})
users := make([]*pb.User, 0, len(room.users))
for _, value := range room.users {
users = append(users, &pb.User{Id: value.Id, Name: value.Name})
}
return &pb.RoomInfo{Id: room.id, Users: users}, nil
}
func (s *Server) Create(ctx context.Context, u *pb.User) (*pb.RoomInfo, error) {
room := newRoom()
info := user.Find(u.Id)
room.Join(*info)
s.lock.Lock()
defer s.lock.Unlock()
s.rooms[room.id] = room
users := make([]*pb.User, 0, len(room.users))
for _, user := range room.users {
users = append(users, &pb.User{Id: user.Id, Name: user.Name})
}
return &pb.RoomInfo{Id: room.id, Users: users}, nil
}
type Room struct {
id int32 `redis:"id"`
users []user.User `redis:"users"`
lock sync.Mutex `redis:"-"`
}
func (r *Room) Join(u user.User) error {
r.lock.Lock()
defer r.lock.Unlock()
if len(r.users) >= 3 {
return userFull
}
r.users = append(r.users, u)
return nil
}
func RegisterGRPC(grsv *grpc.Server) {
pb.RegisterRoomServer(grsv, &Server{})
}
func newRoom() *Room {
id, err := redis.Int("INCR", "room")
if err != nil {
log.Panic(err)
}
return &Room{id: int32(id), users: []user.User{}}
}