Refactored package structure.

initiator/errors.go

@@ -0,0 +1,17 @@
+package initiator
+
+import "errors"
+import "fmt"
+
+var (
+	InvalidIdleTimeout  = errors.New("idle timeout cannot be negative")
+	InvalidMaxQueueSize = errors.New("maximum queue size cannot be negative")
+)
+
+func NewConfigError(text string) error {
+	return fmt.Errorf("configuration error: %s", text)
+}
+
+func NewPoolError(text string) error {
+	return fmt.Errorf("pool error: %s", text)
+}