mux sending

tcp-cart-client.go

@@ -4,6 +4,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"log"
+	"sync"
 	"time"
 )
 
@@ -29,6 +30,7 @@ func (c *Client) Close() {
 
 type CartTCPClient struct {
 	*PersistentConnection
+	sendMux    sync.Mutex
 	ErrorCount int
 	address    string
 	*CartPacketQueue
@@ -48,6 +50,8 @@ func NewCartTCPClient(address string) (*CartTCPClient, error) {
 }
 
 func (m *CartTCPClient) SendPacket(messageType CartMessage, id CartId, data []byte) error {
+	m.sendMux.Lock()
+	defer m.sendMux.Unlock()
 	m.Conn.Write(header[:])
 	err := binary.Write(m.Conn, binary.LittleEndian, CartPacket{
 		Version:     CurrentPacketVersion,