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2 Commits

Author SHA1 Message Date
eac2ed2bf1 fix: readPump and writePump hotfix 2025-09-25 10:42:40 +07:00
6b58b7f233 fix: data race hotfix 2025-09-25 07:24:57 +07:00
4 changed files with 152 additions and 126 deletions

View File

@@ -8,6 +8,12 @@ import (
"github.com/gorilla/websocket"
)
const (
writeWait = 10 * time.Second
pongWait = 60 * time.Second
pingPeriod = 55 * time.Second
)
type Client struct {
Conn *websocket.Conn
Send chan []byte
@@ -19,7 +25,7 @@ type Client struct {
func NewClient(conn *websocket.Conn, subscribedPath string) *Client {
return &Client{
Conn: conn,
Send: make(chan []byte, 1024),
Send: make(chan []byte, 64),
SubscribedPath: subscribedPath,
done: make(chan struct{}),
mu: NewCustomRwMutex(),
@@ -31,7 +37,6 @@ type Hub struct {
Broadcast chan []byte
Register chan *Client
Unregister chan *Client
ClientData map[string]chan []byte
writeMu *CustomRwMutex
readMu *CustomRwMutex
}
@@ -42,72 +47,29 @@ func NewHub() *Hub {
Register: make(chan *Client),
Unregister: make(chan *Client),
Clients: make(map[*Client]bool),
ClientData: make(map[string]chan []byte),
writeMu: NewCustomRwMutex(),
}
}
func (h *Hub) AddDataChannel(dataID string) chan []byte {
ch := make(chan []byte, 256)
h.writeMu.WriteHandler(func() error {
if innerCh, ok := h.ClientData[dataID]; ok {
ch = innerCh
return nil
}
h.ClientData[dataID] = ch
log.Printf("Created data channel for: %s\n", dataID)
return nil
})
return ch
}
func (h *Hub) GetDataChannel(dataID string) (chan []byte, bool) {
var ch chan []byte
var ok bool
h.writeMu.ReadHandler(func() error {
innerCh, innerOk := h.ClientData[dataID]
ch = innerCh
ok = innerOk
return nil
})
return ch, ok
}
func (h *Hub) RemoveDataChannel(dataID string) {
h.writeMu.WriteHandler(func() error {
if ch, ok := h.ClientData[dataID]; ok {
close(ch)
delete(h.ClientData, dataID)
log.Printf("Removed data channel for: %s\n", dataID)
}
return nil
})
}
func (h *Hub) Run() {
go func() {
for {
select {
case c := <-h.Register:
h.Clients[c] = true
case client := <-h.Register:
h.Clients[client] = true
log.Println("Client registered")
case c := <-h.Unregister:
if _, ok := h.Clients[c]; ok {
delete(h.Clients, c)
close(c.Send)
c.Conn.Close()
log.Println("Client unregistered")
}
case message := <-h.Broadcast:
for c := range h.Clients {
for client := range h.Clients {
select {
case c.Send <- message:
case client.Send <- message:
default:
close(c.Send)
delete(h.Clients, c)
close(client.Send)
delete(h.Clients, client)
}
}
}
@@ -116,73 +78,58 @@ func (h *Hub) Run() {
}
func WritePump(c *Client, h *Hub) {
go func() {
defer func() {
h.Unregister <- c
c.Conn.Close()
}()
c.Conn.SetReadLimit(1024)
c.Conn.SetPongHandler(func(string) error {
if err := c.Conn.WriteMessage(websocket.PongMessage, []byte{}); err != nil {
return fmt.Errorf("failed to send pong: %v", err)
}
return nil
})
ticker := time.NewTicker(30 * time.Second)
defer ticker.Stop()
for {
select {
case message, ok := <-c.Send:
if err := c.mu.WriteHandler(func() error {
if !ok {
c.Conn.WriteMessage(websocket.CloseMessage, []byte{})
return fmt.Errorf("message not ok")
}
w, err := c.Conn.NextWriter(websocket.TextMessage)
if err != nil {
return fmt.Errorf("failed to get writer: %q", err)
}
w.Write(message)
if err := w.Close(); err != nil {
return err
}
return nil
}); err == nil {
continue
}
case <-ticker.C:
if err := c.mu.WriteHandler(func() error {
if err := c.Conn.WriteMessage(websocket.PingMessage, nil); err != nil {
return err
}
return nil
}); err != nil {
return
}
}
}
}()
}
func ReadPump(c *Client) {
go func() {
for {
_, message, err := c.Conn.ReadMessage()
if err != nil {
if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseAbnormalClosure) {
log.Printf("WebSocket error: %v", err)
}
break
}
fmt.Println(string(message))
}
pingTicker := time.NewTicker(pingPeriod)
defer func() {
h.Unregister <- c
pingTicker.Stop()
c.Conn.Close()
}()
for {
select {
case message, ok := <-c.Send:
c.Conn.SetWriteDeadline(time.Now().Add(writeWait))
if !ok {
c.Conn.WriteMessage(websocket.CloseMessage, []byte{})
return
}
if err := c.Conn.WriteMessage(websocket.TextMessage, message); err != nil {
return
}
case <-pingTicker.C:
c.Conn.SetWriteDeadline(time.Now().Add(writeWait))
if err := c.Conn.WriteMessage(websocket.PingMessage, nil); err != nil {
return
}
}
}
}
func ReadPump(c *Client, h *Hub) {
defer func() {
h.Unregister <- c
c.Conn.Close()
}()
c.Conn.SetReadLimit(512)
c.Conn.SetReadDeadline(time.Now().Add(pongWait))
c.Conn.SetPongHandler(func(string) error {
c.Conn.SetReadDeadline(time.Now().Add(pongWait))
return nil
})
for {
messageType, message, err := c.Conn.ReadMessage()
if err != nil {
if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseAbnormalClosure) {
log.Printf("WebSocket error: %v", err)
}
break
}
if messageType == websocket.TextMessage {
fmt.Printf("Received: %s\n", message)
}
}
}

82
v1/client/client.go Normal file
View File

@@ -0,0 +1,82 @@
package client
// import (
// "context"
// "fmt"
// "time"
// "git.neurocipta.com/rogerferdinan/safe-web-socket/internal"
// "github.com/gorilla/websocket"
// )
// const (
// pingPeriod = 30 * time.Second
// )
// type SafeWebsocketClientBuilder struct {
// baseHost *string `nil_checker:"required"`
// basePort *uint16 `nil_checker:"required"`
// }
// func NewSafeWebsocketClientBuilder() *SafeWebsocketClientBuilder {
// return &SafeWebsocketClientBuilder{}
// }
// func (b *SafeWebsocketClientBuilder) BaseHost(host string) *SafeWebsocketClientBuilder {
// b.baseHost = &host
// return b
// }
// func (b *SafeWebsocketClientBuilder) BasePort(port uint16) *SafeWebsocketClientBuilder {
// b.basePort = &port
// return b
// }
// func (b *SafeWebsocketClientBuilder) Build() (*SafeWebsocketClient, error) {
// if err := internal.NilChecker(b); err != nil {
// return nil, err
// }
// ctx, cancel := context.WithCancel(context.Background())
// wsClient := SafeWebsocketClient{
// baseHost: b.baseHost,
// basePort: b.basePort,
// ctx: ctx,
// cancel: cancel,
// reconnectCh: make(chan struct{}, 1),
// isConnected: false,
// }
// if err := wsClient.connect(); err != nil {
// cancel()
// return nil, fmt.Errorf("failed to establish initial connection: %v", err)
// }
// wsClient.startPingTicker()
// wsClient.startReceiveHandler()
// return &wsClient, nil
// }
// type SafeWebsocketClient struct {
// baseHost *string
// basePort *uint16
// mu *internal.CustomRwMutex
// ctx context.Context
// cancel context.CancelFunc
// reconnectCh chan struct{}
// isConnected bool
// }
// func (wsClient *SafeWebsocketClient) connect() error {
// url := fmt.Sprintf("%s:%d", *wsClient.baseHost, *wsClient.basePort)
// conn, _, err := websocket.DefaultDialer.Dial(url, nil)
// if err != nil {
// return fmt.Errorf("failed to connect to %s: %w", *wsClient.baseHost, err)
// }
// conn.SetPingHandler(func(pingData string) error {
// conn.WriteMessage(websocket.PongMessage, []byte(pingData))
// })
// }

View File

@@ -12,13 +12,13 @@ func main() {
BaseHost("localhost").
BasePort(8080).
HandleFuncWebsocket("/ws/test/", "data_1", func(c chan []byte) {
ticker := time.NewTicker(100 * time.Millisecond)
ticker := time.NewTicker(10 * time.Millisecond)
for range ticker.C {
c <- []byte(time.Now().Format("2006-01-02 15:04:05") + "_data_1")
}
}).
HandleFuncWebsocket("/ws/test/", "data_2", func(c chan []byte) {
ticker := time.NewTicker(100 * time.Millisecond)
ticker := time.NewTicker(10 * time.Millisecond)
for range ticker.C {
c <- []byte(time.Now().Format("2006-01-02 15:04:05") + "_data_2")
}

View File

@@ -64,16 +64,15 @@ func (b *SafeWebsocketServerBuilder) HandleFuncWebsocket(
}
subscribedPath := strings.TrimPrefix(r.URL.Path, pattern)
fmt.Println(subscribedPath)
if subscribedPath == "" {
http.Error(w, "invalid path", http.StatusBadRequest)
return
}
c := internal.NewClient(conn, subscribedPath)
h.Register <- c
internal.WritePump(c, h)
internal.ReadPump(c)
writeFunc(h.Broadcast)
go internal.WritePump(c, h)
go internal.ReadPump(c, h)
go writeFunc(h.Broadcast)
})
return b
}
@@ -86,7 +85,6 @@ func (b *SafeWebsocketServerBuilder) Build() (*SafeWebsocketServer, error) {
safeServer := SafeWebsocketServer{
url: fmt.Sprintf("%s:%d", *b.baseHost, *b.basePort),
mux: b.mux,
mu: internal.NewCustomRwMutex(),
}
return &safeServer, nil
}
@@ -95,7 +93,6 @@ type SafeWebsocketServer struct {
hub *internal.Hub
mux *http.ServeMux
url string
mu *internal.CustomRwMutex
}
func (s *SafeWebsocketServer) ListenAndServe() error {