whatcanGOwrong

2024-09-19 21:38:24 -04:00
commit d0ae4d841d
17908 changed files with 4096831 additions and 0 deletions
@@ -0,0 +1,35 @@
+package main
+
+import (
+	"fmt"
+	"runtime"
+	"sync"
+)
+
+func coroutine(i int, start, finish *sync.WaitGroup) {
+	defer finish.Done()
+
+	j := i * 2
+
+	if i == 99 {
+		runtime.Breakpoint()
+		start.Done()
+	} else {
+		start.Wait()
+	}
+
+	fmt.Println("hello ", i, j)
+	fmt.Println("goodbye", i, j)
+}
+
+func main() {
+	i := 0
+	var start, finish sync.WaitGroup
+	start.Add(1)
+	for ; i < 100; i++ {
+		finish.Add(1)
+		go coroutine(i, &start, &finish)
+	}
+	finish.Wait()
+	println(i)
+}