intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 15 insertions, 0 deletions

diff --git a/library/cpp/coroutine/engine/helper.h b/library/cpp/coroutine/engine/helper.h
new file mode 100644
index 0000000000..ec2711ba52
--- /dev/null
+++ b/library/cpp/coroutine/engine/helper.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <util/generic/string.h>
+#include <util/datetime/base.h>
+
+namespace NCoro {
+
+    // @brief check that address  `host`:`port` is connectable
+    bool TryConnect(const TString& host, ui16 port, TDuration timeout = TDuration::Seconds(1));
+
+    // @brief waits until address `host`:`port` became connectable, but not more than timeout
+    // @return true on success, false if timeout exceeded
+    bool WaitUntilConnectable(const TString& host, ui16 port, TDuration timeout);
+
+}