From 6e4d5fbe3a1ed3eba68cf9c484f62259d7890243 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Tue, 5 Jan 2016 21:24:14 +0000
Subject: Add support explicitly clearing all items from the cache

---
 libadhocutil/cache.h                 | 2 ++
 libadhocutil/cache.impl.h            | 8 ++++++++
 libadhocutil/unittests/testCache.cpp | 2 ++
 3 files changed, 12 insertions(+)

diff --git a/libadhocutil/cache.h b/libadhocutil/cache.h
index 72ad879..a394e92 100644
--- a/libadhocutil/cache.h
+++ b/libadhocutil/cache.h
@@ -95,6 +95,8 @@ class DLL_PUBLIC Cache {
 		/** Explicitly remove an item from the cache.
 		 * @param k Cache key to remove. */
 		void remove(const K & k);
+		/** Explicitly remove ALL items from the cache. */
+		void clear();
 
 	private:
 		void DLL_PRIVATE prune() const;
diff --git a/libadhocutil/cache.impl.h b/libadhocutil/cache.impl.h
index c07d9c0..0a2b0b3 100644
--- a/libadhocutil/cache.impl.h
+++ b/libadhocutil/cache.impl.h
@@ -125,6 +125,14 @@ Cache<T, K>::remove(const K & k)
 	cached.template get<byKey>().erase(k);
 }
 
+template<typename T, typename K>
+void
+Cache<T, K>::clear()
+{
+	Lock(lock);
+	cached.clear();
+}
+
 template<typename T, typename K>
 void
 Cache<T, K>::prune() const
diff --git a/libadhocutil/unittests/testCache.cpp b/libadhocutil/unittests/testCache.cpp
index 1f41836..914d282 100644
--- a/libadhocutil/unittests/testCache.cpp
+++ b/libadhocutil/unittests/testCache.cpp
@@ -83,6 +83,8 @@ BOOST_AUTO_TEST_CASE( multivalues )
 	BOOST_REQUIRE(!tc.get("key1"));
 	BOOST_REQUIRE_EQUAL(2, *tc.get("key2"));
 	BOOST_REQUIRE_EQUAL(3, *tc.get("key3"));
+	tc.clear();
+	BOOST_REQUIRE_EQUAL(0, tc.size());
 }
 
 BOOST_AUTO_TEST_CASE( expired )
-- 
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