Files
youtube-downloader/ws-server/main.go
David Majdandžić 51a94b6636 Fix memory leak in server
Remove server instrumentation
2024-06-27 11:22:16 +02:00

81 lines
1.9 KiB
Go

package main
import (
"encoding/json"
"fmt"
"io"
"log"
"net/http"
"time"
)
var server = New(10 * time.Second)
func wsHandler(responseWriter http.ResponseWriter, request *http.Request) {
conn, err := server.Upgrader.Upgrade(responseWriter, request, nil)
if err != nil {
fmt.Println("Error during connection upgrade:", err)
return
}
server.HandleNew(conn)
}
type DownloadReq struct {
Link string `json:"link"`
}
func handleDownload(responseWriter http.ResponseWriter, request *http.Request) {
body, err := io.ReadAll(request.Body)
if err != nil {
log.Printf("Error reading request body: %v", err)
http.Error(responseWriter, "Error reading request body", http.StatusBadRequest)
return
}
defer request.Body.Close()
req := DownloadReq{}
err = json.Unmarshal(body, &req)
if err != nil {
log.Printf("Error parsing JSON: %v", err)
http.Error(responseWriter, "Error parsing JSON", http.StatusBadRequest)
return
}
server.Broadcast <- req.Link
}
func init() {
// log.SetFlags(log.Lmicroseconds | log.Lshortfile)
log.SetFlags(log.Lmicroseconds)
}
// Mainly used to detect memory leaks
// func instrument() {
// numGoroutines := runtime.NumGoroutine()
// var m runtime.MemStats
// runtime.ReadMemStats(&m)
// malloc := float64(m.Alloc)
// ramUsedMB := malloc / 1024 / 1024
// kbPerGoroutine := malloc / 1024 / float64(numGoroutines)
// log.Printf("Number of active goroutines: %d; RAM used: %.2f MB; KB per goroutine: %.2f", numGoroutines, ramUsedMB, kbPerGoroutine)
// }
func main() {
// go func() {
// for {
// time.Sleep(1 * time.Second)
// instrument()
// }
// }()
http.HandleFunc("/ws", wsHandler)
http.HandleFunc("/download", handleDownload)
log.Println("Server starting on :8080")
err := http.ListenAndServe(":8080", nil)
if err != nil {
log.Println("Error starting server:", err)
}
}