Added OclCache class stub.

src/backend/opencl/OclCache_win.cpp

@@ -0,0 +1,52 @@
+/* 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 <direct.h>
+#include <Shlobj.h>
+#include <windows.h>
+
+
+#include "backend/opencl/OclCache.h"
+
+
+void xmrig::OclCache::createDirectory() const
+{
+    std::string path = prefix() + "/xmrig";
+    _mkdir(path.c_str());
+
+    path += "/.cache";
+    _mkdir(path.c_str());
+}
+
+
+std::string xmrig::OclCache::prefix()
+{
+    char path[MAX_PATH + 1];
+    if (SHGetSpecialFolderPathA(HWND_DESKTOP, path, CSIDL_LOCAL_APPDATA, FALSE)) {
+        return path;
+    }
+
+    return ".";
+}