Merge branch 'develop'

pool_func.go

@@ -145,6 +145,7 @@ func (p *PoolWithFunc) getWorker() *WorkerWithFunc {
 			p.running++
 		}
 	} else {
+		<-p.freeSignal
 		w = workers[n]
 		workers[n] = nil
 		p.workers = workers[:n]
@@ -153,20 +154,13 @@ func (p *PoolWithFunc) getWorker() *WorkerWithFunc {
 
 	if waiting {
 		<-p.freeSignal
-		for {
 		p.lock.Lock()
 		workers = p.workers
 		l := len(workers) - 1
-			if l < 0 {
-				p.lock.Unlock()
-				continue
-			}
 		w = workers[l]
 		workers[l] = nil
 		p.workers = workers[:l]
 		p.lock.Unlock()
-			break
-		}
 	} else if w == nil {
 		w = &WorkerWithFunc{
 			pool: p,