42 lines
936 B
Go
42 lines
936 B
Go
package websocket
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import (
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"time"
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"github.com/gorilla/websocket"
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"git.smsvc.net/pomodoro/GoTomato/pkg/models"
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)
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// Checks if the websockets last Pong is recent
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func isStale(client *models.WebsocketClient) bool {
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return time.Since(client.LastPong) > (TIMEOUT * time.Second)
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}
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// send a Ping to the websocket client
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func sendPing(client *models.WebsocketClient) bool {
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client.Conn.SetWriteDeadline(time.Now().Add(TIMEOUT * time.Second))
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err := client.Conn.WriteMessage(websocket.PingMessage, nil)
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if err != nil {
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return false
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}
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return true
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}
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// Check and remove stale clients
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func RemoveStaleClients() {
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ticker := time.NewTicker(30 * time.Second)
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defer ticker.Stop()
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for range ticker.C {
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mu.Lock()
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for _, client := range Clients {
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// send ping and check for last pong
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if !sendPing(client) || isStale(client) {
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client.Conn.Close()
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delete(Clients, client.Conn.LocalAddr())
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}
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}
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mu.Unlock()
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}
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}
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