1 files changed, 89 insertions, 0 deletions
diff --git a/src/HashFuncEntry.h b/src/HashFuncEntry.h
new file mode 100644
index 00000000..824fa4af
--- /dev/null
+++ b/src/HashFuncEntry.h
@@ -0,0 +1,89 @@
+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2010 Tatsuhiro Tsujikawa
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL.  If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so.  If you
+ * do not wish to do so, delete this exception statement from your
+ * version.  If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ */
+/* copyright --> */
+#ifndef D_HASH_FUNC_ENTRY_H
+#define D_HASH_FUNC_ENTRY_H
+
+#include "common.h"
+
+#include <string>
+#include <algorithm>
+
+#include "DlAbortEx.h"
+#include "StringFormat.h"
+
+namespace aria2 {
+
+template<typename HashFunc>
+struct HashFuncEntry {
+  typedef HashFunc HashFuncType;
+  std::string hashType;
+  HashFunc hashFunc;
+  HashFuncEntry(const std::string& hashType, const HashFunc& hashFunc):
+    hashType(hashType), hashFunc(hashFunc)
+  {}
+};
+
+template<typename HashFunc>
+class FindHashFunc {
+private:
+  const std::string& hashType_;
+public:
+  FindHashFunc(const std::string& hashType):hashType_(hashType)
+  {}
+
+  bool operator()(const HashFuncEntry<HashFunc>& entry) const
+  {
+    return entry.hashType == hashType_;
+  }
+};
+
+template<class HashFuncEntry>
+const typename HashFuncEntry::HashFuncType& getHashFunc
+(HashFuncEntry* first, HashFuncEntry* last, const std::string& hashType)
+{
+  HashFuncEntry* e =
+    std::find_if(first, last,
+                 FindHashFunc<typename HashFuncEntry::HashFuncType>
+                 (hashType));
+  if(e == last) {
+    throw DL_ABORT_EX
+      (StringFormat("Hash type %s is not supported.", hashType.c_str()).str());
+  }
+  return e->hashFunc;
+}
+
+} // namespace aria2
+
+#endif // D_HASH_FUNC_ENTRY_H