Added selection for optimized Argon2 implementation.

src/crypto/argon2/Impl.cpp

@@ -0,0 +1,62 @@
+/* XMRig
+ * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
+ * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
+ * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
+ * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
+ * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "3rdparty/argon2.h"
+#include "base/tools/String.h"
+#include "crypto/argon2/Impl.h"
+
+
+
+namespace xmrig {
+
+
+static bool selected = false;
+static String implName;
+
+
+} // namespace xmrig
+
+
+bool xmrig::argon2::Impl::select(const String &nameHint)
+{
+    if (!selected) {
+        if (nameHint.isEmpty() || argon2_select_impl_by_name(nameHint) == 0) {
+            argon2_select_impl(nullptr, nullptr);
+        }
+
+        selected = true;
+        implName = argon2_get_impl_name();
+
+        return true;
+    }
+
+    return false;
+}
+
+
+const xmrig::String &xmrig::argon2::Impl::name()
+{
+    return implName;
+}