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130 lines
3.7 KiB
130 lines
3.7 KiB
package operation
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import (
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"context"
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"fmt"
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"net"
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"strconv"
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"strings"
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"sync"
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"google.golang.org/grpc"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
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"github.com/chrislusf/seaweedfs/weed/pb/volume_server_pb"
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"github.com/chrislusf/seaweedfs/weed/util"
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)
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var (
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connectionPool = make(map[string]*sync.Pool)
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connectionPoolLock sync.Mutex
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)
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func WithVolumeServerClient(volumeServer string, grpcDialOption grpc.DialOption, fn func(context.Context, volume_server_pb.VolumeServerClient) error) error {
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ctx := context.Background()
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grpcAddress, err := toVolumeServerGrpcAddress(volumeServer)
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if err != nil {
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return err
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}
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return util.WithCachedGrpcClient(ctx, func(ctx2 context.Context, grpcConnection *grpc.ClientConn) error {
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client := volume_server_pb.NewVolumeServerClient(grpcConnection)
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return fn(ctx2, client)
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}, grpcAddress, grpcDialOption)
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}
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func toVolumeServerGrpcAddress(volumeServer string) (grpcAddress string, err error) {
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sepIndex := strings.LastIndex(volumeServer, ":")
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port, err := strconv.Atoi(volumeServer[sepIndex+1:])
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if err != nil {
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glog.Errorf("failed to parse volume server address: %v", volumeServer)
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return "", err
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}
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return fmt.Sprintf("%s:%d", volumeServer[0:sepIndex], port+10000), nil
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}
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func WithVolumeServerTcpConnection(volumeServer string, fn func(conn net.Conn) error) error {
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tcpAddress, err := toVolumeServerTcpAddress(volumeServer)
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if err != nil {
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return err
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}
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conn := getConnection(tcpAddress)
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defer releaseConnection(conn, tcpAddress)
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err = fn(conn)
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return err
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}
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func getConnection(tcpAddress string) net.Conn {
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connectionPoolLock.Lock()
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defer connectionPoolLock.Unlock()
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pool, found := connectionPool[tcpAddress]
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if !found {
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println("creating pool for", tcpAddress)
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pool = &sync.Pool{New: func() interface{} {
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raddr, err := net.ResolveTCPAddr("tcp", tcpAddress)
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if err != nil {
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glog.Fatal(err)
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}
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conn, err := net.DialTCP("tcp", nil, raddr)
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if err != nil {
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glog.Errorf("failed to connect to %s: %v", tcpAddress, err)
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return conn
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}
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conn.SetKeepAlive(true)
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conn.SetNoDelay(true)
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println("connected", tcpAddress, "=>", conn.LocalAddr().String())
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return conn
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}}
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connectionPool[tcpAddress] = pool
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}
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conn := pool.Get().(net.Conn)
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// println("get connection", tcpAddress, "=>", conn.LocalAddr().String())
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return conn
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}
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func releaseConnection(conn net.Conn, tcpAddress string) {
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connectionPoolLock.Lock()
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defer connectionPoolLock.Unlock()
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pool, found := connectionPool[tcpAddress]
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if !found {
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println("can not return connection", tcpAddress, "=>", conn.LocalAddr().String())
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return
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}
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pool.Put(conn)
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// println("returned connection", tcpAddress, "=>", conn.LocalAddr().String())
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}
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func toVolumeServerTcpAddress(volumeServer string) (grpcAddress string, err error) {
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sepIndex := strings.LastIndex(volumeServer, ":")
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port, err := strconv.Atoi(volumeServer[sepIndex+1:])
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if err != nil {
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glog.Errorf("failed to parse volume server address: %v", volumeServer)
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return "", err
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}
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return fmt.Sprintf("%s:%d", volumeServer[0:sepIndex], port+20000), nil
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}
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func WithMasterServerClient(masterServer string, grpcDialOption grpc.DialOption, fn func(ctx2 context.Context, masterClient master_pb.SeaweedClient) error) error {
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ctx := context.Background()
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masterGrpcAddress, parseErr := util.ParseServerToGrpcAddress(masterServer)
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if parseErr != nil {
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return fmt.Errorf("failed to parse master grpc %v: %v", masterServer, parseErr)
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}
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return util.WithCachedGrpcClient(ctx, func(ctx2 context.Context, grpcConnection *grpc.ClientConn) error {
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client := master_pb.NewSeaweedClient(grpcConnection)
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return fn(ctx2, client)
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}, masterGrpcAddress, grpcDialOption)
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}
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