1 #ifndef OSMIUM_MEMORY_BUFFER_HPP
2 #define OSMIUM_MEMORY_BUFFER_HPP
61 std::runtime_error(
"Osmium buffer is full") {
151 throw std::invalid_argument(
"buffer size needs to be multiple of alignment");
169 m_capacity(capacity),
170 m_written(committed),
171 m_committed(committed) {
173 throw std::invalid_argument(
"buffer capacity needs to be multiple of alignment");
176 throw std::invalid_argument(
"buffer parameter 'committed' needs to be multiple of alignment");
196 m_data(m_memory.
data()),
197 m_capacity(capacity),
202 throw std::invalid_argument(
"buffer capacity needs to be multiple of alignment");
221 unsigned char*
data() const noexcept {
305 if (m_memory.empty()) {
306 throw std::logic_error(
"Can't grow Buffer if it doesn't use internal memory management.");
308 if (m_capacity < size) {
310 throw std::invalid_argument(
"buffer capacity needs to be multiple of alignment");
312 m_memory.resize(size);
313 m_data = m_memory.data();
371 template <
typename T>
372 T&
get(
const size_t offset)
const {
374 return *
reinterpret_cast<T*
>(&m_data[offset]);
413 if (m_written + size > m_capacity && m_full) {
417 if (m_written + size > m_capacity) {
420 size_t new_capacity = m_capacity * 2;
421 while (m_written + size > new_capacity) {
449 template <
typename T>
453 std::copy_n(reinterpret_cast<const unsigned char*>(&item), item.padded_size(), target);
454 return *
reinterpret_cast<T*
>(target);
468 assert(m_data && buffer);
491 template <
typename T>
498 template <
typename T>
521 template <
typename T>
537 return iterator(m_data, m_data + m_committed);
549 template <
typename T>
566 return iterator(m_data + offset, m_data + m_committed);
577 template <
typename T>
593 return iterator(m_data + m_committed, m_data + m_committed);
596 template <
typename T>
607 template <
typename T>
618 template <
typename T>
626 return const_iterator(m_data + m_committed, m_data + m_committed);
629 template <
typename T>
638 template <
typename T>
650 explicit operator bool()
const {
651 return m_data !=
nullptr;
682 template <
typename TCallbackClass>
693 next = std::next(it_read);
694 if (!it_read->removed()) {
695 if (it_read != it_write) {
696 assert(it_read.data() >=
data());
698 size_t old_offset =
static_cast<size_t>(it_read.data() -
data());
699 size_t new_offset =
static_cast<size_t>(it_write.
data() -
data());
700 callback->moving_in_buffer(old_offset, new_offset);
701 std::memmove(it_write.
data(), it_read.data(), it_read->padded_size());
708 m_written =
static_cast<size_t>(it_write.
data() -
data());
725 return lhs.data() == rhs.data() && lhs.capacity() == rhs.capacity() && lhs.committed() == rhs.committed();
729 return ! (lhs == rhs);
736 #endif // OSMIUM_MEMORY_BUFFER_HPP
size_t m_written
Definition: buffer.hpp:111
t_const_iterator< T > cend() const
Definition: buffer.hpp:619
const_iterator begin() const
Definition: buffer.hpp:634
size_t clear()
Definition: buffer.hpp:354
#define OSMIUM_DEPRECATED
Definition: compatibility.hpp:53
OSMIUM_DEPRECATED void set_full_callback(std::function< void(Buffer &)> full)
Definition: buffer.hpp:282
iterator get_iterator(size_t offset)
Definition: buffer.hpp:564
bool operator!=(const Buffer &lhs, const Buffer &rhs) noexcept
Definition: buffer.hpp:728
void grow(size_t size)
Definition: buffer.hpp:303
const_iterator end() const
Definition: buffer.hpp:643
Definition: item_iterator.hpp:119
unsigned char * m_data
Definition: buffer.hpp:109
constexpr item_size_type align_bytes
Definition: item.hpp:53
size_t capacity() const noexcept
Definition: buffer.hpp:230
Buffer(unsigned char *data, size_t capacity, size_t committed)
Definition: buffer.hpp:166
Definition: reader_iterator.hpp:39
ItemIterator< TMember > & advance_once()
Definition: item_iterator.hpp:168
Buffer(size_t capacity, auto_grow auto_grow=auto_grow::yes)
Definition: buffer.hpp:194
unsigned char * data() const
Definition: item_iterator.hpp:189
bool operator==(const Buffer &lhs, const Buffer &rhs) noexcept
Definition: buffer.hpp:721
t_iterator< T > end()
Definition: buffer.hpp:578
Namespace for everything in the Osmium library.
Definition: assembler.hpp:59
T & add_item(const T &item)
Definition: buffer.hpp:450
void purge_removed(TCallbackClass *callback)
Definition: buffer.hpp:683
t_iterator< T > begin()
Definition: buffer.hpp:522
void add_buffer(const Buffer &buffer)
Definition: buffer.hpp:467
friend void swap(Buffer &lhs, Buffer &rhs)
Definition: buffer.hpp:654
const_iterator cbegin() const
Definition: buffer.hpp:602
size_t m_committed
Definition: buffer.hpp:112
bool is_aligned() const noexcept
Definition: buffer.hpp:257
t_iterator< osmium::OSMEntity > iterator
Definition: buffer.hpp:505
Buffer() noexcept
Definition: buffer.hpp:126
unsigned char * reserve_space(const size_t size)
Definition: buffer.hpp:410
auto_grow m_auto_grow
Definition: buffer.hpp:113
void push_back(const osmium::memory::Item &item)
Definition: buffer.hpp:481
iterator end()
Definition: buffer.hpp:591
size_t committed() const noexcept
Definition: buffer.hpp:238
iterator begin()
Definition: buffer.hpp:535
const_iterator cend() const
Definition: buffer.hpp:624
size_t m_capacity
Definition: buffer.hpp:110
t_const_iterator< T > get_iterator(size_t offset) const
Definition: buffer.hpp:608
size_t written() const noexcept
Definition: buffer.hpp:247
Buffer(unsigned char *data, size_t size)
Definition: buffer.hpp:144
t_const_iterator< T > end() const
Definition: buffer.hpp:639
Definition: buffer.hpp:97
unsigned char * data() const noexcept
Definition: buffer.hpp:221
Definition: buffer.hpp:58
const_iterator get_iterator(size_t offset) const
Definition: buffer.hpp:613
t_const_iterator< T > cbegin() const
Definition: buffer.hpp:597
t_const_iterator< T > begin() const
Definition: buffer.hpp:630
auto_grow
Definition: buffer.hpp:101
std::vector< unsigned char > m_memory
Definition: buffer.hpp:108
buffer_is_full()
Definition: buffer.hpp:60
void rollback()
Definition: buffer.hpp:342
t_iterator< T > get_iterator(size_t offset)
Definition: buffer.hpp:550
std::function< void(Buffer &)> m_full
Definition: buffer.hpp:114
Buffer & operator=(const Buffer &)=delete
size_t commit()
Definition: buffer.hpp:328
t_const_iterator< osmium::OSMEntity > const_iterator
Definition: buffer.hpp:511