Add missing prov_weight.cpp

1 files changed, 31 insertions, 0 deletions

diff --git a/src/algo_factory/prov_weight.cpp b/src/algo_factory/prov_weight.cpp
new file mode 100644
index 000000000..7ee99b894
--- /dev/null
+++ b/src/algo_factory/prov_weight.cpp
@@ -0,0 +1,31 @@
+/**
+* Default provider weights for Algorithm_Cache
+* (C) 2008 Jack Lloyd
+*/
+
+#include <botan/algo_cache.h>
+
+namespace Botan {
+
+/**
+* Return a static provider weighing
+*/
+u32bit static_provider_weight(const std::string& prov_name)
+   {
+   /*
+   * Prefer asm over C++, but prefer anything over OpenSSL or GNU MP; to use
+   * them, set the provider explicitly for the algorithms you want
+   */
+
+   if(prov_name == "core") return 5;
+   if(prov_name == "ia32") return 6;
+   if(prov_name == "amd64") return 7;
+   if(prov_name == "sse2") return 8;
+
+   if(prov_name == "openssl") return 2;
+   if(prov_name == "gmp") return 1;
+
+   return 0; // other
+   }
+
+}