whatcanGOwrong

2024-09-19 21:38:24 -04:00
commit d0ae4d841d
17908 changed files with 4096831 additions and 0 deletions
@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"runtime"
+	"sync"
+	"time"
+)
+
+func demo(id int, wait *sync.WaitGroup) {
+	for i := 0; i < 100; i++ {
+		sleep := rand.Intn(10) + 1
+		runtime.Breakpoint()
+		fmt.Printf("id: %d step: %d sleeping %d\n", id, i, sleep)
+		time.Sleep(time.Duration(sleep) * time.Millisecond)
+	}
+
+	wait.Done()
+}
+
+func main() {
+	wait := new(sync.WaitGroup)
+	wait.Add(1)
+	wait.Add(1)
+	go demo(1, wait)
+	go demo(2, wait)
+
+	wait.Wait()
+}