Comment finish method

1 files changed, 2 insertions, 0 deletions

diff --git a/gwic.go b/gwic.go
index c14a431..ace3fca 100644
--- a/gwic.go
+++ b/gwic.go
@@ -30,6 +30,8 @@ type work struct {
 	done chan struct{}
 }
 
+// By writing to w.done we make sure that the goroutine has finished
+// sending to the out channel before returning from this method.
 func (w *work) finish() {
 	close(w.c)
 	w.done <- struct{}{}