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try to figure out why wait groups aren't workign

This commit is contained in:
Jeff Carr 2022-11-14 08:46:22 -06:00
parent 741286521a
commit f4d755db16
1 changed files with 5 additions and 4 deletions
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9
example-go-channel/sendFunction.go
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@ -11,6 +11,7 @@ import (
type funcWait struct { type funcWait struct {
f func() f func()
wgF sync.WaitGroup wgF sync.WaitGroup
val int
err error err error
res int res int
} }
@ -27,7 +28,7 @@ func generateNumbers(total int, ch chan<- *funcWait, af *funcWait) {
log.Println("generateNumbers() END total =", total) log.Println("generateNumbers() END total =", total)
} }
func andlabsGoroutine(ch <-chan *funcWait, wgF *sync.WaitGroup) { func andlabsGoroutine(ch <-chan *funcWait, wg *sync.WaitGroup) {
defer wg.Done() defer wg.Done()
log.Println("andlabsGoroutine() START") log.Println("andlabsGoroutine() START")
@ -39,7 +40,6 @@ func andlabsGoroutine(ch <-chan *funcWait, wgF *sync.WaitGroup) {
} }
func main() { func main() {
functionChan = make(chan *funcWait) functionChan = make(chan *funcWait)
// syntax to get the return values from a channel // syntax to get the return values from a channel
@ -49,12 +49,13 @@ func main() {
wg.Add(1) wg.Add(1)
go andlabsGoroutine(functionChan, &wg) go andlabsGoroutine(functionChan, &wg)
afunc.wgF = wg // afunc.wgF = wg
afunc.f = func() { afunc.f = func() {
log.Println("\tGOT INSIDE: running f() from inside the structure & inside the wait group goroutine") log.Println("\tGOT INSIDE: running f() from inside the structure & inside the wait group goroutine", afunc.val)
} }
for idx := 1; idx <= 10; idx++ { for idx := 1; idx <= 10; idx++ {
afunc.val = idx * 20
generateNumbers(idx, functionChan, &afunc) generateNumbers(idx, functionChan, &afunc)
} }