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hybrid.hpp
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#ifndef OSMIUM_INDEX_MULTIMAP_HYBRID_HPP
#define OSMIUM_INDEX_MULTIMAP_HYBRID_HPP
/*
This file is part of Osmium (https://osmcode.org/libosmium).
Copyright 2013-2025 Jochen Topf <jochen@topf.org> and others (see README).
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#include <osmium/index/index.hpp>
#include <osmium/index/multimap.hpp>
#include <osmium/index/multimap/sparse_mem_array.hpp>
#include <osmium/index/multimap/sparse_mem_multimap.hpp>
#include <cstddef>
#include <utility>
namespace osmium {
namespace index {
namespace multimap {
template <typename TId, typename TValue>
class HybridIterator {
using main_map_type = SparseMemArray<TId, TValue>;
using extra_map_type = SparseMemMultimap<TId, TValue>;
using element_type = typename std::pair<TId, TValue>;
typename main_map_type::iterator m_begin_main;
typename main_map_type::iterator m_end_main;
typename extra_map_type::iterator m_begin_extra;
typename extra_map_type::iterator m_end_extra;
public:
HybridIterator(typename main_map_type::iterator begin_main,
typename main_map_type::iterator end_main,
typename extra_map_type::iterator begin_extra,
typename extra_map_type::iterator end_extra) :
m_begin_main(begin_main),
m_end_main(end_main),
m_begin_extra(begin_extra),
m_end_extra(end_extra) {
}
~HybridIterator() noexcept = default;
HybridIterator& operator++() {
if (m_begin_main == m_end_main) {
++m_begin_extra;
} else {
++m_begin_main;
while (m_begin_main != m_end_main && m_begin_main->second == osmium::index::empty_value<TValue>()) { // ignore removed elements
++m_begin_main;
}
}
return *this;
}
HybridIterator<TId, TValue> operator++(int) {
const auto tmp{*this};
operator++();
return tmp;
}
bool operator==(const HybridIterator& rhs) const {
return m_begin_main == rhs.m_begin_main &&
m_end_main == rhs.m_end_main &&
m_begin_extra == rhs.m_begin_extra &&
m_end_extra == rhs.m_end_extra;
}
bool operator!=(const HybridIterator& rhs) const {
return !operator==(rhs);
}
const element_type& operator*() {
if (m_begin_main == m_end_main) {
return *m_begin_extra;
}
return *m_begin_main;
}
const element_type* operator->() {
return &operator*();
}
}; // class HybridIterator
template <typename TId, typename TValue>
class Hybrid : public Multimap<TId, TValue> {
using main_map_type = SparseMemArray<TId, TValue>;
using extra_map_type = SparseMemMultimap<TId, TValue>;
main_map_type m_main;
extra_map_type m_extra;
public:
using iterator = HybridIterator<TId, TValue>;
using const_iterator = const HybridIterator<TId, TValue>;
Hybrid() :
m_main(),
m_extra() {
}
~Hybrid() noexcept = default;
size_t size() const final {
return m_main.size() + m_extra.size();
}
size_t used_memory() const final {
return m_main.used_memory() + m_extra.used_memory();
}
void reserve(const size_t size) {
m_main.reserve(size);
}
void unsorted_set(const TId id, const TValue value) {
m_main.set(id, value);
}
void set(const TId id, const TValue value) final {
m_extra.set(id, value);
}
std::pair<iterator, iterator> get_all(const TId id) {
const auto result_main = m_main.get_all(id);
const auto result_extra = m_extra.get_all(id);
return std::make_pair(iterator{result_main.first, result_main.second, result_extra.first, result_extra.second},
iterator{result_main.second, result_main.second, result_extra.second, result_extra.second});
}
void remove(const TId id, const TValue value) {
m_main.remove(id, value);
m_extra.remove(id, value);
}
void consolidate() {
m_main.erase_removed();
for (const auto& element : m_extra) {
m_main.set(element.first, element.second);
}
m_extra.clear();
m_main.sort();
}
void dump_as_list(const int fd) final {
consolidate();
m_main.dump_as_list(fd);
}
void clear() final {
m_main.clear();
m_extra.clear();
}
void sort() final {
m_main.sort();
}
}; // class Hybrid
} // namespace multimap
} // namespace index
} // namespace osmium
#endif // OSMIUM_INDEX_MULTIMAP_HYBRID_HPP
osmium::index::multimap::HybridIterator
Definition hybrid.hpp:51
osmium::index::multimap::HybridIterator::m_begin_main
main_map_type::iterator m_begin_main
Definition hybrid.hpp:58
osmium::index::multimap::HybridIterator::operator*
const element_type & operator*()
Definition hybrid.hpp:106
osmium::index::multimap::HybridIterator::main_map_type
SparseMemArray< TId, TValue > main_map_type
Definition hybrid.hpp:53
osmium::index::multimap::HybridIterator::element_type
typename std::pair< TId, TValue > element_type
Definition hybrid.hpp:56
osmium::index::multimap::HybridIterator::operator==
bool operator==(const HybridIterator &rhs) const
Definition hybrid.hpp:95
osmium::index::multimap::HybridIterator::HybridIterator
HybridIterator(typename main_map_type::iterator begin_main, typename main_map_type::iterator end_main, typename extra_map_type::iterator begin_extra, typename extra_map_type::iterator end_extra)
Definition hybrid.hpp:65
osmium::index::multimap::HybridIterator::operator++
HybridIterator< TId, TValue > operator++(int)
Definition hybrid.hpp:89
osmium::index::multimap::HybridIterator::m_begin_extra
extra_map_type::iterator m_begin_extra
Definition hybrid.hpp:60
osmium::index::multimap::HybridIterator::operator!=
bool operator!=(const HybridIterator &rhs) const
Definition hybrid.hpp:102
osmium::index::multimap::HybridIterator::operator++
HybridIterator & operator++()
Definition hybrid.hpp:77
osmium::index::multimap::HybridIterator::~HybridIterator
~HybridIterator() noexcept=default
osmium::index::multimap::HybridIterator::m_end_extra
extra_map_type::iterator m_end_extra
Definition hybrid.hpp:61
osmium::index::multimap::HybridIterator::operator->
const element_type * operator->()
Definition hybrid.hpp:113
osmium::index::multimap::HybridIterator::m_end_main
main_map_type::iterator m_end_main
Definition hybrid.hpp:59
osmium::index::multimap::HybridIterator::extra_map_type
SparseMemMultimap< TId, TValue > extra_map_type
Definition hybrid.hpp:54
osmium::index::multimap::Hybrid::const_iterator
const HybridIterator< TId, TValue > const_iterator
Definition hybrid.hpp:131
osmium::index::multimap::Hybrid::reserve
void reserve(const size_t size)
Definition hybrid.hpp:148
osmium::index::multimap::Hybrid::used_memory
size_t used_memory() const final
Definition hybrid.hpp:144
osmium::index::multimap::Hybrid::sort
void sort() final
Definition hybrid.hpp:191
osmium::index::multimap::Hybrid::main_map_type
SparseMemArray< TId, TValue > main_map_type
Definition hybrid.hpp:122
osmium::index::multimap::Hybrid::iterator
HybridIterator< TId, TValue > iterator
Definition hybrid.hpp:130
osmium::index::multimap::Hybrid::m_extra
extra_map_type m_extra
Definition hybrid.hpp:126
osmium::index::multimap::Hybrid::consolidate
void consolidate()
Definition hybrid.hpp:172
osmium::index::multimap::Hybrid::unsorted_set
void unsorted_set(const TId id, const TValue value)
Definition hybrid.hpp:152
osmium::index::multimap::Hybrid::clear
void clear() final
Definition hybrid.hpp:186
osmium::index::multimap::Hybrid::extra_map_type
SparseMemMultimap< TId, TValue > extra_map_type
Definition hybrid.hpp:123
osmium::index::multimap::Hybrid::Hybrid
Hybrid()
Definition hybrid.hpp:133
osmium::index::multimap::Hybrid::m_main
main_map_type m_main
Definition hybrid.hpp:125
osmium::index::multimap::Hybrid::size
size_t size() const final
Definition hybrid.hpp:140
osmium::index::multimap::Hybrid::set
void set(const TId id, const TValue value) final
Set the field with id to value.
Definition hybrid.hpp:156
osmium::index::multimap::Hybrid::get_all
std::pair< iterator, iterator > get_all(const TId id)
Definition hybrid.hpp:160
osmium::index::multimap::Hybrid::dump_as_list
void dump_as_list(const int fd) final
Definition hybrid.hpp:181
osmium::index::multimap::Hybrid::~Hybrid
~Hybrid() noexcept=default
osmium::index::multimap::Hybrid::remove
void remove(const TId id, const TValue value)
Definition hybrid.hpp:167
osmium::index::multimap::Multimap::Multimap
Multimap(Multimap &&) noexcept=default
osmium::index::multimap::SparseMemMultimap
Definition sparse_mem_multimap.hpp:56
osmium::index::multimap::SparseMemMultimap::iterator
typename collection_type::iterator iterator
Definition sparse_mem_multimap.hpp:69
index.hpp
sparse_mem_array.hpp
multimap.hpp
osmium::index::multimap
Key-value containers with multiple values for an integer key.
Definition multimap.hpp:48
osmium::index::multimap::SparseMemArray
VectorBasedSparseMultimap< TId, TValue, StdVectorWrap > SparseMemArray
Definition sparse_mem_array.hpp:50
osmium::index
Indexing of OSM data, Locations, etc.
Definition id_set.hpp:51
osmium::index::empty_value
constexpr T empty_value()
Definition index.hpp:79
osmium
Namespace for everything in the Osmium library.
Definition assembler.hpp:53
sparse_mem_multimap.hpp