1 files changed, 8 insertions, 0 deletions
diff --git a/watcher.go b/watcher.go
new file mode 100644
index 00000000..bbc7b9dc
--- /dev/null
+++ b/watcher.go
@@ -0,0 +1,8 @@
+package roadrunner
+
+// Watcher watches for workers.
+type Watcher interface {
+	// Keep must return true and nil if worker is OK to continue working,
+	// must return false and optional error to force worker destruction.
+	Keep(p Pool, w *Worker) (keep bool, err error)
+}