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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package thrift
import (
"context"
"net"
"time"
)
type TSocket struct {
conn *socketConn
addr net.Addr
cfg *TConfiguration
connectTimeout time.Duration
socketTimeout time.Duration
}
// Deprecated: Use NewTSocketConf instead.
func NewTSocket(hostPort string) (*TSocket, error) {
return NewTSocketConf(hostPort, &TConfiguration{
noPropagation: true,
})
}
// NewTSocketConf creates a net.Conn-backed TTransport, given a host and port.
//
// Example:
//
// trans, err := thrift.NewTSocketConf("localhost:9090", &TConfiguration{
// ConnectTimeout: time.Second, // Use 0 for no timeout
// SocketTimeout: time.Second, // Use 0 for no timeout
// })
func NewTSocketConf(hostPort string, conf *TConfiguration) (*TSocket, error) {
addr, err := net.ResolveTCPAddr("tcp", hostPort)
if err != nil {
return nil, err
}
return NewTSocketFromAddrConf(addr, conf), nil
}
// Deprecated: Use NewTSocketConf instead.
func NewTSocketTimeout(hostPort string, connTimeout time.Duration, soTimeout time.Duration) (*TSocket, error) {
return NewTSocketConf(hostPort, &TConfiguration{
ConnectTimeout: connTimeout,
SocketTimeout: soTimeout,
noPropagation: true,
})
}
// NewTSocketFromAddrConf creates a TSocket from a net.Addr
func NewTSocketFromAddrConf(addr net.Addr, conf *TConfiguration) *TSocket {
return &TSocket{
addr: addr,
cfg: conf,
}
}
// Deprecated: Use NewTSocketFromAddrConf instead.
func NewTSocketFromAddrTimeout(addr net.Addr, connTimeout time.Duration, soTimeout time.Duration) *TSocket {
return NewTSocketFromAddrConf(addr, &TConfiguration{
ConnectTimeout: connTimeout,
SocketTimeout: soTimeout,
noPropagation: true,
})
}
// NewTSocketFromConnConf creates a TSocket from an existing net.Conn.
func NewTSocketFromConnConf(conn net.Conn, conf *TConfiguration) *TSocket {
return &TSocket{
conn: wrapSocketConn(conn),
addr: conn.RemoteAddr(),
cfg: conf,
}
}
// Deprecated: Use NewTSocketFromConnConf instead.
func NewTSocketFromConnTimeout(conn net.Conn, socketTimeout time.Duration) *TSocket {
return NewTSocketFromConnConf(conn, &TConfiguration{
SocketTimeout: socketTimeout,
noPropagation: true,
})
}
// SetTConfiguration implements TConfigurationSetter.
//
// It can be used to set connect and socket timeouts.
func (p *TSocket) SetTConfiguration(conf *TConfiguration) {
p.cfg = conf
}
// Sets the connect timeout
func (p *TSocket) SetConnTimeout(timeout time.Duration) error {
if p.cfg == nil {
p.cfg = &TConfiguration{
noPropagation: true,
}
}
p.cfg.ConnectTimeout = timeout
return nil
}
// Sets the socket timeout
func (p *TSocket) SetSocketTimeout(timeout time.Duration) error {
if p.cfg == nil {
p.cfg = &TConfiguration{
noPropagation: true,
}
}
p.cfg.SocketTimeout = timeout
return nil
}
func (p *TSocket) pushDeadline(read, write bool) {
var t time.Time
if timeout := p.cfg.GetSocketTimeout(); timeout > 0 {
t = time.Now().Add(time.Duration(timeout))
}
if read && write {
p.conn.SetDeadline(t)
} else if read {
p.conn.SetReadDeadline(t)
} else if write {
p.conn.SetWriteDeadline(t)
}
}
// Connects the socket, creating a new socket object if necessary.
func (p *TSocket) Open() error {
if p.conn.isValid() {
return NewTTransportException(ALREADY_OPEN, "Socket already connected.")
}
if p.addr == nil {
return NewTTransportException(NOT_OPEN, "Cannot open nil address.")
}
if len(p.addr.Network()) == 0 {
return NewTTransportException(NOT_OPEN, "Cannot open bad network name.")
}
if len(p.addr.String()) == 0 {
return NewTTransportException(NOT_OPEN, "Cannot open bad address.")
}
var err error
if p.conn, err = createSocketConnFromReturn(net.DialTimeout(
p.addr.Network(),
p.addr.String(),
p.cfg.GetConnectTimeout(),
)); err != nil {
return NewTTransportException(NOT_OPEN, err.Error())
}
return nil
}
// Retrieve the underlying net.Conn
func (p *TSocket) Conn() net.Conn {
return p.conn
}
// Returns true if the connection is open
func (p *TSocket) IsOpen() bool {
return p.conn.IsOpen()
}
// Closes the socket.
func (p *TSocket) Close() error {
// Close the socket
if p.conn != nil {
err := p.conn.Close()
if err != nil {
return err
}
p.conn = nil
}
return nil
}
//Returns the remote address of the socket.
func (p *TSocket) Addr() net.Addr {
return p.addr
}
func (p *TSocket) Read(buf []byte) (int, error) {
if !p.conn.isValid() {
return 0, NewTTransportException(NOT_OPEN, "Connection not open")
}
p.pushDeadline(true, false)
// NOTE: Calling any of p.IsOpen, p.conn.read0, or p.conn.IsOpen between
// p.pushDeadline and p.conn.Read could cause the deadline set inside
// p.pushDeadline being reset, thus need to be avoided.
n, err := p.conn.Read(buf)
return n, NewTTransportExceptionFromError(err)
}
func (p *TSocket) Write(buf []byte) (int, error) {
if !p.conn.isValid() {
return 0, NewTTransportException(NOT_OPEN, "Connection not open")
}
p.pushDeadline(false, true)
return p.conn.Write(buf)
}
func (p *TSocket) Flush(ctx context.Context) error {
return nil
}
func (p *TSocket) Interrupt() error {
if !p.conn.isValid() {
return nil
}
return p.conn.Close()
}
func (p *TSocket) RemainingBytes() (num_bytes uint64) {
const maxSize = ^uint64(0)
return maxSize // the truth is, we just don't know unless framed is used
}
var _ TConfigurationSetter = (*TSocket)(nil)