Add main.go

main.go

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os/exec"
+	"runtime"
+	"time"
+)
+
+func getTemp() (float64, error) {
+	out, err := exec.Command("cat", "/sys/class/thermal/thermal_zone0/temp").Output()
+	if err != nil {
+		return 0, err
+	}
+	var tempMilli float64
+	fmt.Sscanf(string(out), "%f", &tempMilli)
+	return tempMilli / 1000, nil
+}
+
+func eatCPU(stop <-chan bool) {
+	for {
+		select {
+		case <-stop:
+			return
+		default:
+			_ = 1.0001 * 1.0001 // keep CPU busy
+		}
+	}
+}
+
+func main() {
+	targetTemp := flag.Float64("t", 70, "Target temperature in Celsius")
+	flag.Parse()
+
+	fmt.Printf("Heating CPU to %.1f°C...\n", *targetTemp)
+
+	stop := make(chan bool)
+	go eatCPU(stop)
+
+	for {
+		temp, err := getTemp()
+		if err != nil {
+			fmt.Println("Error reading temperature:", err)
+			break
+		}
+
+		fmt.Printf("Current temperature: %.1f°C\r", temp)
+		if temp >= *targetTemp {
+			fmt.Println("\nTarget reached. Cooling down...")
+			stop <- true
+			break
+		}
+		time.Sleep(500 * time.Millisecond)
+	}
+
+	runtime.GC()
+}