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package main
import (
"fmt"
"gitlab.com/jonas.jasas/condchan"
"log"
"sync"
"time"
)
func main() {
fmt.Println("Broadcast examples")
cc := condchan.New(&sync.Mutex{})
var jobResult string
go func() {
time.Sleep(time.Second * 2) // Imitating long job
cc.L.Lock()
jobResult = "CANDY"
cc.L.Unlock()
cc.Broadcast() // Letting know waiter that job is done
}()
go waiter(cc, "Patience", time.Second*3, &jobResult)
go waiter(cc, "Impatience", time.Second*1, &jobResult)
cc.L.Lock()
cc.Wait() // Waiting like on sync.Cond
cc.L.Unlock()
time.Sleep(time.Second)
}
func waiter(cc *condchan.CondChan, name string, wait time.Duration, jobResult *string) {
timeoutChan := time.After(wait)
cc.L.Lock()
cc.Select(func(c <-chan struct{}) { // Waiting with select
select {
case <-c:
log.Printf("%s: I received what I been waiting for - %s", name, *jobResult)
case <-timeoutChan:
log.Printf("%s: I can't wait much longer", name)
}
})
cc.L.Unlock()
}
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