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golang-examples
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wrap waitgroup around every function call

This commit is contained in:
Jeff Carr 2022-11-14 09:51:18 -06:00
parent 9b57621ecd
commit b5d6b4541a
1 changed files with 5 additions and 1 deletions
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6
example-go-channel/sendFunction.go
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@ -21,7 +21,6 @@ var afunc funcWait
var wg sync.WaitGroup var wg sync.WaitGroup
func generateNumbers(total int, ch chan<- *funcWait, af *funcWait) { func generateNumbers(total int, ch chan<- *funcWait, af *funcWait) {
log.Println("generateNumbers() START total =", total) log.Println("generateNumbers() START total =", total)
ch <- af ch <- af
log.Println("generateNumbers() END total =", total) log.Println("generateNumbers() END total =", total)
@ -34,6 +33,7 @@ func andlabsGoroutine(ch <-chan *funcWait, wg *sync.WaitGroup) {
for f := range ch { for f := range ch {
log.Println("andlabsGoroutine() read f() from channel") log.Println("andlabsGoroutine() read f() from channel")
f.f() f.f()
f.wgF.Done()
} }
log.Printf("andlabsGoroutine() END") log.Printf("andlabsGoroutine() END")
} }
@ -54,8 +54,12 @@ func main() {
} }
for idx := 1; idx <= 10; idx++ { for idx := 1; idx <= 10; idx++ {
log.Println("START waitgroup idx =", idx)
afunc.val = idx * 20 afunc.val = idx * 20
afunc.wgF.Add(1)
generateNumbers(idx, functionChan, &afunc) generateNumbers(idx, functionChan, &afunc)
afunc.wgF.Wait()
log.Println("END waitgroup idx =", idx)
} }
wg.Done() wg.Done()