Expose Algorithm_Factory::clear_caches which clears out all of the

caches; this might be useful for applications which are, say,
particularly sensitive to memory usage.

2 files changed, 10 insertions, 1 deletions

diff --git a/src/algo_factory/algo_factory.cpp b/src/algo_factory/algo_factory.cpp
index 16ac589a1..6bd66d349 100644
--- a/src/algo_factory/algo_factory.cpp
+++ b/src/algo_factory/algo_factory.cpp
@@ -108,13 +108,17 @@ Algorithm_Factory::~Algorithm_Factory()
    std::for_each(engines.begin(), engines.end(), del_fun<Engine>());
    }
 
-void Algorithm_Factory::add_engine(Engine* engine)
+void Algorithm_Factory::clear_caches()
    {
    block_cipher_cache->clear_cache();
    stream_cipher_cache->clear_cache();
    hash_cache->clear_cache();
    mac_cache->clear_cache();
+   }
 
+void Algorithm_Factory::add_engine(Engine* engine)
+   {
+   clear_caches();
    engines.push_back(engine);
    }
 
diff --git a/src/algo_factory/algo_factory.h b/src/algo_factory/algo_factory.h
index 5e0e49f13..f7e85202b 100644
--- a/src/algo_factory/algo_factory.h
+++ b/src/algo_factory/algo_factory.h
@@ -50,6 +50,11 @@ class BOTAN_DLL Algorithm_Factory
       void add_engine(class Engine* engine);
 
       /**
+      * Clear out any cached objects
+      */
+      void clear_caches();
+
+      /**
       * @param algo_spec the algorithm we are querying
       * @returns list of providers of this algorithm
       */