Removed extra locks, goroutine for sendToClient
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This commit is contained in:
whysman 2025-02-22 19:10:09 -05:00
parent 5bbf04ae90
commit f7ddf11f94

84
main.go
View File

@ -155,13 +155,19 @@ func (s *Server) handleConnections(w http.ResponseWriter, r *http.Request) {
}
}
func broadcastSingleRecord(s *Server, message Message) {
for client := range s.clients {
sendMessageToClient(client, message)
}
}
func sendMessageToClient(client *Client, message Message) {
var msgJSON, err = json.Marshal(message)
if err != nil {
log.Println("Error marshalling json:", err)
return
}
sendToClient(client, msgJSON)
go sendToClient(client, msgJSON)
}
func sendToClient(client *Client, msgJSON []byte) {
@ -172,36 +178,6 @@ func sendToClient(client *Client, msgJSON []byte) {
}
}
func broadcastAllRecords(s *Server) {
allRecords, err := fetchAllRecords()
if err != nil {
log.Println("Error fetching all records:", err)
}
if len(allRecords) > 0 {
for _, msgContent := range allRecords {
fmt.Printf("Broadcasting %s to %d clients\n", msgContent, len(s.clients))
for client := range s.clients {
sendToClient(client, []byte(msgContent))
}
}
}
}
func broadcastRemovedRecords(s *Server, message Message) {
fmt.Printf("Broadcasting removal: %s,%s,%s,%s to %d clients\n", message.Id, message.Status, message.Name, message.Timestamp, len(s.clients))
for client := range s.clients {
sendMessageToClient(client, message)
}
}
func broadcastExpiredRecords(s *Server, removed string) {
var message = Message{Id: removed, Name: "", Image: "", Status: "removed", Timestamp: ""}
fmt.Printf("Broadcasting expiration: %s to %d clients\n", message, len(s.clients))
for client := range s.clients {
sendMessageToClient(client, message)
}
}
func sendAllRecordsToClient(client *Client) {
allRecords, err := fetchAllRecords()
if err != nil {
@ -209,15 +185,13 @@ func sendAllRecordsToClient(client *Client) {
}
fmt.Printf("Broadcasting %d records to client\n", len(allRecords))
var message Message
client.mu.Lock()
defer client.mu.Unlock()
for _, msgContent := range allRecords {
err = json.Unmarshal([]byte(msgContent), &message)
if err != nil {
log.Println("Unable to marshal JSON due to: ", err)
}
fmt.Printf("Broadcasting %s,%s,%s,%s\n", message.Id, message.Status, message.Name, message.Timestamp)
sendToClient(client, []byte(msgContent))
go sendToClient(client, []byte(msgContent))
}
}
@ -226,7 +200,7 @@ func (s *Server) listenForExpirationEvents() {
defer func(ps *redis.PubSub) {
err := ps.Close()
if err != nil {
log.Println("Error closing redis pubsub:", err)
}
}(ps)
@ -235,8 +209,9 @@ func (s *Server) listenForExpirationEvents() {
expiredID := msg.Payload
fmt.Println(expiredID)
// Broadcast expiration event
broadcastExpiredRecords(s, expiredID)
fmt.Printf("Done Broadcasting Expiration\n")
var message = Message{Id: expiredID, Name: "", Image: "", Status: "removed", Timestamp: ""}
fmt.Printf("Broadcasting expiration: %s to %d clients\n", message, len(s.clients))
broadcastSingleRecord(s, message)
}
}
@ -256,7 +231,6 @@ func fetchAllRecords() (map[string]string, error) {
}
records[key] = value
}
return records, nil
}
@ -333,26 +307,24 @@ func setState(w http.ResponseWriter, r *http.Request, s *Server) {
http.Error(w, "Failed to delete key from Redis", http.StatusInternalServerError)
return
}
broadcastRemovedRecords(s, message)
w.WriteHeader(http.StatusOK)
return
fmt.Printf("Broadcasting removal: %s,%s,%s,%s to %d clients\n", message.Id, message.Status, message.Name, message.Timestamp, len(s.clients))
} else {
msgJSON, err := json.Marshal(message)
if err != nil {
http.Error(w, "Failed to encode message", http.StatusInternalServerError)
return
}
timeout := 20 * time.Second
err = redisClient.Set(ctx, message.Id, msgJSON, timeout).Err()
if err != nil {
log.Printf("Failed to set key in Redis: %v", err)
http.Error(w, "Failed to store data", http.StatusInternalServerError)
return
}
fmt.Printf("Broadcasting message: %s,%s,%s,%s to %d clients\n", message.Id, message.Status, message.Name, message.Timestamp, len(s.clients))
}
msgJSON, err := json.Marshal(message)
if err != nil {
http.Error(w, "Failed to encode message", http.StatusInternalServerError)
return
}
timeout := 20 * time.Second
err = redisClient.Set(ctx, message.Id, msgJSON, timeout).Err()
if err != nil {
log.Printf("Failed to set key in Redis: %v", err)
http.Error(w, "Failed to store data", http.StatusInternalServerError)
return
}
broadcastAllRecords(s)
broadcastSingleRecord(s, message)
w.WriteHeader(http.StatusOK)
}