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/*
* Phusion Passenger - https://www.phusionpassenger.com/
* Copyright (c) 2014-2018 Phusion Holding B.V.
*
* "Passenger", "Phusion Passenger" and "Union Station" are registered
* trademarks of Phusion Holding B.V.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _PASSENGER_DATA_STRUCTURES_HASHED_STATIC_STRING_H_
#define _PASSENGER_DATA_STRUCTURES_HASHED_STATIC_STRING_H_
#include <boost/cstdint.hpp>
#include <oxt/macros.hpp>
#include <string>
#include <StaticString.h>
#include <Algorithms/Hasher.h>
namespace Passenger {
using namespace std;
class HashedStaticString: public StaticString {
private:
boost::uint32_t m_hash;
public:
HashedStaticString()
: StaticString(),
m_hash(Hasher::EMPTY_STRING_HASH)
{ }
HashedStaticString(const StaticString &b)
: StaticString(b)
{
rehash();
}
HashedStaticString& operator=(const HashedStaticString &other) = default;
HashedStaticString(const HashedStaticString &b)
: StaticString(b),
m_hash(b.m_hash)
{ }
HashedStaticString(const string &s)
: StaticString(s)
{
rehash();
}
HashedStaticString(const char *data)
: StaticString(data)
{
rehash();
}
HashedStaticString(const char *data, string::size_type len)
: StaticString(data, len)
{
rehash();
}
HashedStaticString(const char *data, string::size_type len,
boost::uint32_t hash)
: StaticString(data, len),
m_hash(hash)
{ }
void rehash() {
Hasher h;
h.update(data(), size());
m_hash = h.finalize();
}
void setHash(boost::uint32_t value) {
m_hash = value;
}
OXT_FORCE_INLINE
boost::uint32_t hash() const {
return m_hash;
}
};
} // namespace Passenger
#endif /* _PASSENGER_DATA_STRUCTURES_HASHED_STATIC_STRING_H_ */