Add net to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@14 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 55 insertions, 0 deletions

diff --git a/net/disk_cache/hash.h b/net/disk_cache/hash.h
new file mode 100644
index 0000000..e71a678
--- /dev/null
+++ b/net/disk_cache/hash.h
@@ -0,0 +1,55 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef NET_DISK_CACHE_HASH_H__
+#define NET_DISK_CACHE_HASH_H__
+
+#include <string>
+
+#include "base/basictypes.h"
+
+namespace disk_cache {
+
+// From http://www.azillionmonkeys.com/qed/hash.html
+// This is the hash used on WebCore/platform/stringhash
+uint32 SuperFastHash(const char * data, int len);
+
+inline uint32 Hash(const char* key, size_t length) {
+  return SuperFastHash(key, static_cast<int>(length));
+}
+
+inline uint32 Hash(const std::string& key) {
+  if (key.empty())
+    return 0;
+  return SuperFastHash(key.data(), static_cast<int>(key.size()));
+}
+
+}  // namespace disk_cache
+
+#endif  // NET_DISK_CACHE_HASH_H__