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ntfy/tools/loadgen/main.go

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2023-03-28 20:41:16 +02:00
package main
import (
"bufio"
"context"
"fmt"
"net/http"
"os"
"time"
)
func main() {
baseURL := "https://staging.ntfy.sh"
if len(os.Args) > 1 {
baseURL = os.Args[1]
}
for i := 0; i < 2000; i++ {
go subscribe(i, baseURL)
}
time.Sleep(5 * time.Second)
for i := 0; i < 2000; i++ {
go func(worker int) {
for {
poll(worker, baseURL)
}
}(i)
}
time.Sleep(time.Hour)
}
func subscribe(worker int, baseURL string) {
fmt.Printf("[subscribe] worker=%d STARTING\n", worker)
start := time.Now()
topic, ip := fmt.Sprintf("subtopic%d", worker), fmt.Sprintf("1.2.%d.%d", (worker/255)%255, worker%255)
req, _ := http.NewRequest("GET", fmt.Sprintf("%s/%s/json", baseURL, topic), nil)
req.Header.Set("X-Forwarded-For", ip)
resp, err := http.DefaultClient.Do(req)
if err != nil {
fmt.Printf("[subscribe] worker=%d time=%d error=%s\n", worker, time.Since(start).Milliseconds(), err.Error())
return
}
defer resp.Body.Close()
scanner := bufio.NewScanner(resp.Body)
for scanner.Scan() {
// Do nothing
}
fmt.Printf("[subscribe] worker=%d status=%d time=%d EXITED\n", worker, resp.StatusCode, time.Since(start).Milliseconds())
}
func poll(worker int, baseURL string) {
fmt.Printf("[poll] worker=%d STARTING\n", worker)
topic, ip := fmt.Sprintf("polltopic%d", worker), fmt.Sprintf("1.2.%d.%d", (worker/255)%255, worker%255)
start := time.Now()
ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
defer cancel()
//req, _ := http.NewRequestWithContext(ctx, "GET", fmt.Sprintf("https://staging.ntfy.sh/%s/json?poll=1&since=all", topic), nil)
req, _ := http.NewRequestWithContext(ctx, "GET", fmt.Sprintf("%s/%s/json?poll=1&since=all", baseURL, topic), nil)
req.Header.Set("X-Forwarded-For", ip)
resp, err := http.DefaultClient.Do(req)
if err != nil {
fmt.Printf("[poll] worker=%d time=%d status=- error=%s\n", worker, time.Since(start).Milliseconds(), err.Error())
cancel()
return
}
defer resp.Body.Close()
fmt.Printf("[poll] worker=%d time=%d status=%s\n", worker, time.Since(start).Milliseconds(), resp.Status)
}