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97 lines
2.2 KiB
97 lines
2.2 KiB
package wdclient
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import (
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"bufio"
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"bytes"
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/pb"
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"github.com/chrislusf/seaweedfs/weed/util"
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"github.com/chrislusf/seaweedfs/weed/wdclient/net2"
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"io"
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"net"
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"time"
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)
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// VolumeTcpClient put/get/delete file chunks directly on volume servers without replication
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type VolumeTcpClient struct {
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cp net2.ConnectionPool
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}
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type VolumeTcpConn struct {
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net.Conn
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bufWriter *bufio.Writer
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bufReader *bufio.Reader
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}
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func NewVolumeTcpClient() *VolumeTcpClient {
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MaxIdleTime := 10 * time.Second
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return &VolumeTcpClient{
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cp: net2.NewMultiConnectionPool(net2.ConnectionOptions{
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MaxActiveConnections: 16,
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MaxIdleConnections: 1,
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MaxIdleTime: &MaxIdleTime,
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DialMaxConcurrency: 0,
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Dial: func(network string, address string) (net.Conn, error) {
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conn, err := net.Dial(network, address)
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return &VolumeTcpConn{
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conn,
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bufio.NewWriter(conn),
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bufio.NewReader(conn),
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}, err
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},
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NowFunc: nil,
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ReadTimeout: 0,
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WriteTimeout: 0,
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}),
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}
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}
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func (c *VolumeTcpClient) PutFileChunk(volumeServerAddress string, fileId string, fileSize uint32, fileReader io.Reader) (err error) {
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tcpAddress, parseErr := pb.ParseServerAddress(volumeServerAddress, 20000)
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if parseErr != nil {
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return parseErr
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}
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c.cp.Register("tcp", tcpAddress)
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tcpConn, getErr := c.cp.Get("tcp", tcpAddress)
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if getErr != nil {
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return fmt.Errorf("get connection to %s: %v", tcpAddress, getErr)
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}
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conn := tcpConn.RawConn().(*VolumeTcpConn)
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defer func() {
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if err != nil {
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tcpConn.DiscardConnection()
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} else {
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tcpConn.ReleaseConnection()
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}
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}()
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buf := []byte("+" + fileId + "\n")
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_, err = conn.bufWriter.Write([]byte(buf))
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if err != nil {
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return
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}
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util.Uint32toBytes(buf[0:4], fileSize)
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_, err = conn.bufWriter.Write(buf[0:4])
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if err != nil {
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return
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}
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_, err = io.Copy(conn.bufWriter, fileReader)
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if err != nil {
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return
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}
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conn.bufWriter.Write([]byte("!\n"))
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conn.bufWriter.Flush()
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ret, _, err := conn.bufReader.ReadLine()
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if err != nil {
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glog.V(0).Infof("upload by tcp: %v", err)
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return
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}
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if !bytes.HasPrefix(ret, []byte("+OK")) {
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glog.V(0).Infof("upload by tcp: %v", string(ret))
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}
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return nil
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}
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