From 97d2b09c124e6e5803f7fd4503348d9710d1260f Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Sun, 24 Dec 2017 12:13:13 -0500
Subject: Add helper to wait for validation interface queue to catch up

---
 src/validationinterface.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/validationinterface.h')

diff --git a/src/validationinterface.h b/src/validationinterface.h
index 164059e3b9..f416f6678f 100644
--- a/src/validationinterface.h
+++ b/src/validationinterface.h
@@ -42,6 +42,16 @@ void UnregisterAllValidationInterfaces();
  * will result in a deadlock (that DEBUG_LOCKORDER will miss).
  */
 void CallFunctionInValidationInterfaceQueue(std::function<void ()> func);
+/**
+ * This is a synonym for the following, which asserts certain locks are not
+ * held:
+ *     std::promise<void> promise;
+ *     CallFunctionInValidationInterfaceQueue([&promise] {
+ *         promise.set_value();
+ *     });
+ *     promise.get_future().wait();
+ */
+void SyncWithValidationInterfaceQueue();
 
 class CValidationInterface {
 protected:
-- 
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