stringspool.h

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// Copyright 2002-2020 CEA LIST
// SPDX-FileCopyrightText: 2022 CEA LIST <gael.de-chalendar@cea.fr>
//
// SPDX-License-Identifier: MIT
 
//
// C++ Interface: stringspool
//
// Description:
//
//
// Author: CEA LIST <Gael.de-Chalendar@cea.fr>
//
// Copyright: See COPYING file that comes with this distribution
//
//
#ifndef LIMA_DATA_STRINGSPOOL_H
#define LIMA_DATA_STRINGSPOOL_H
 
#include "common/LimaCommon.h"
#include "common/Data/LimaString.h"
 
#ifdef WIN32
#include <hash_map>
#else
#ifndef NO_STDCPP0X
#include <unordered_map>
#else
#include <ext/hash_map>
#endif
#endif
#include <boost/serialization/strong_typedef.hpp>
 
namespace Lima {
 
class StringsPoolPrivate;
 
#define STRINGS_POOL_INDEX_TYPE uint64_t
BOOST_STRONG_TYPEDEF(STRINGS_POOL_INDEX_TYPE, StringsPoolIndex);
#define STRINGS_POOL_INDEX_MAX_VALUE std::numeric_limits<STRINGS_POOL_INDEX_TYPE>::max()
 
class LIMA_COMMONMISC_EXPORT StringsPool
{
public:
    StringsPool();
 
    ~StringsPool();
 
    StringsPoolIndex operator[](const LimaString& str) const;
    StringsPoolIndex operator[](const LimaString& str);
 
    const LimaString& operator[](const StringsPoolIndex ind) const;
    LimaString& operator[](const StringsPoolIndex ind);
 
    void registerUser(void* p);
    void unregisterUser(void* p);
 
    void endResourcesPool();
 
    bool empty() const;
    uint64_t size() const;
 
  StringsPool(const StringsPool& /*unused p*/) = delete;
  StringsPool& operator=(const StringsPool& /*unused p*/)  = delete;
 
private:
 
  StringsPoolPrivate* m_d;
};
 
} // closing namespace Lima
 
namespace std {
 
template<> struct hash<Lima::StringsPoolIndex> {
  std::size_t operator()(const Lima::StringsPoolIndex s) const noexcept {
    return (size_t) qHash(s);
  }
};
 
}
 
#endif // LIMA_DATA_STRINGSPOOL_H