1 #ifndef OSMIUM_IO_WRITER_HPP 2 #define OSMIUM_IO_WRITER_HPP 41 #include <initializer_list> 47 #include <osmium/io/detail/output_format.hpp> 48 #include <osmium/io/detail/queue_util.hpp> 49 #include <osmium/io/detail/read_write.hpp> 50 #include <osmium/io/detail/write_thread.hpp> 71 inline size_t get_output_queue_size() noexcept {
103 static constexpr
size_t default_buffer_size = 10 * 1024 * 1024;
109 std::unique_ptr<osmium::io::detail::OutputFormat>
m_output;
126 static void write_thread(detail::future_string_queue_type& output_queue,
127 std::unique_ptr<osmium::io::Compressor>&& compressor,
128 std::promise<bool>&& write_promise) {
129 detail::WriteThread write_thread{output_queue,
130 std::move(compressor),
131 std::move(write_promise)};
136 if (buffer && buffer.committed() > 0) {
137 m_output->write_buffer(std::move(buffer));
143 if (m_buffer && m_buffer.
committed() > 0) {
147 swap(m_buffer, buffer);
149 m_output->write_buffer(std::move(buffer));
153 template <
typename TFunction,
typename... TArgs>
155 if (m_status != status::okay) {
156 throw io_error(
"Can not write to writer when in status 'closed' or 'error'");
160 func(std::forward<TArgs>(args)...);
162 m_status = status::error;
163 detail::add_to_queue(m_output_queue, std::current_exception());
164 detail::add_end_of_data_to_queue(m_output_queue);
177 options.
pool = &pool;
189 options.
sync = value;
193 if (m_status == status::okay) {
194 ensure_cleanup([&](){
195 do_write(std::move(m_buffer));
196 m_output->write_end();
197 m_status = status::closed;
198 detail::add_end_of_data_to_queue(m_output_queue);
228 template <
typename... TArgs>
230 m_file(file.check()),
231 m_output_queue(
detail::get_output_queue_size(),
"raw_output"),
234 m_buffer_size(default_buffer_size),
241 (void)std::initializer_list<int>{
242 (set_option(options, args), 0)...
249 m_output = osmium::io::detail::OutputFormatFactory::instance().create_output(*options.pool, m_file, m_output_queue);
251 if (options.header.get(
"generator") ==
"") {
255 std::unique_ptr<osmium::io::Compressor> compressor =
256 CompressionFactory::instance().create_compressor(file.
compression(),
257 osmium::io::detail::open_for_writing(m_file.
filename(), options.allow_overwrite),
260 std::promise<bool> write_promise;
261 m_write_future = write_promise.get_future();
264 ensure_cleanup([&](){
265 m_output->write_header(options.header);
269 template <
typename... TArgs>
270 explicit Writer(
const std::string& filename, TArgs&&... args) :
274 template <
typename... TArgs>
275 explicit Writer(
const char* filename, TArgs&&... args) :
297 return m_buffer_size;
305 m_buffer_size = size;
316 ensure_cleanup([&](){
330 ensure_cleanup([&](){
332 do_write(std::move(buffer));
344 ensure_cleanup([&](){
370 if (m_write_future.valid()) {
371 m_write_future.get();
381 #endif // OSMIUM_IO_WRITER_HPP fsync sync
Definition: writer.hpp:172
~Writer() noexcept
Definition: writer.hpp:285
std::size_t get_max_queue_size(const char *queue_name, std::size_t default_value) noexcept
Definition: config.hpp:71
Definition: writer.hpp:169
static Pool & default_instance()
Definition: pool.hpp:169
void do_write(osmium::memory::Buffer &&buffer)
Definition: writer.hpp:135
void do_flush()
Definition: writer.hpp:141
void swap(Buffer &lhs, Buffer &rhs)
Definition: buffer.hpp:762
void do_close()
Definition: writer.hpp:192
osmium::thread::thread_handler m_thread
Definition: writer.hpp:117
osmium::io::Header header
Definition: writer.hpp:170
osmium::memory::Buffer m_buffer
Definition: writer.hpp:111
std::unique_ptr< osmium::io::detail::OutputFormat > m_output
Definition: writer.hpp:109
std::size_t committed() const noexcept
Definition: buffer.hpp:268
void set_buffer_size(size_t size) noexcept
Definition: writer.hpp:304
static void write_thread(detail::future_string_queue_type &output_queue, std::unique_ptr< osmium::io::Compressor > &&compressor, std::promise< bool > &&write_promise)
Definition: writer.hpp:126
void operator()(osmium::memory::Buffer &&buffer)
Definition: writer.hpp:329
Namespace for everything in the Osmium library.
Definition: assembler.hpp:53
status
Definition: writer.hpp:119
#define LIBOSMIUM_VERSION_STRING
Definition: version.hpp:40
size_t buffer_size() const noexcept
Definition: writer.hpp:296
fsync
Definition: writer_options.hpp:51
static void set_option(options_type &options, fsync value)
Definition: writer.hpp:188
void push_back(const osmium::memory::Item &item)
Definition: buffer.hpp:518
size_t m_buffer_size
Definition: writer.hpp:113
void close()
Definition: writer.hpp:367
void flush()
Definition: writer.hpp:315
osmium::io::File m_file
Definition: writer.hpp:105
static void set_option(options_type &options, osmium::thread::Pool &pool)
Definition: writer.hpp:176
Definition: buffer.hpp:98
Definition: buffer.hpp:59
const char * buffer() const noexcept
Definition: file.hpp:156
static void set_option(options_type &options, overwrite value)
Definition: writer.hpp:184
Definition: writer.hpp:101
Writer(const char *filename, TArgs &&... args)
Definition: writer.hpp:275
std::future< bool > m_write_future
Definition: writer.hpp:115
osmium::thread::Pool * pool
Definition: writer.hpp:173
Writer(const osmium::io::File &file, TArgs &&... args)
Definition: writer.hpp:229
void check_for_exception(std::future< T > &future)
Definition: util.hpp:55
Writer(const std::string &filename, TArgs &&... args)
Definition: writer.hpp:270
overwrite allow_overwrite
Definition: writer.hpp:171
static void set_option(options_type &options, const osmium::io::Header &header)
Definition: writer.hpp:180
detail::future_string_queue_type m_output_queue
Definition: writer.hpp:107
file_compression compression() const noexcept
Definition: file.hpp:301
File & filename(const std::string &filename)
Definition: file.hpp:319
void operator()(const osmium::memory::Item &item)
Definition: writer.hpp:343
void ensure_cleanup(TFunction func, TArgs &&... args)
Definition: writer.hpp:154
overwrite
Definition: writer_options.hpp:43