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> 70 inline size_t get_output_queue_size() noexcept {
102 static constexpr
size_t default_buffer_size = 10 * 1024 * 1024;
108 std::unique_ptr<osmium::io::detail::OutputFormat>
m_output;
125 static void write_thread(detail::future_string_queue_type& output_queue,
126 std::unique_ptr<osmium::io::Compressor>&& compressor,
127 std::promise<bool>&& write_promise) {
128 detail::WriteThread write_thread{output_queue,
129 std::move(compressor),
130 std::move(write_promise)};
135 if (buffer && buffer.committed() > 0) {
136 m_output->write_buffer(std::move(buffer));
142 if (m_buffer && m_buffer.
committed() > 0) {
146 swap(m_buffer, buffer);
148 m_output->write_buffer(std::move(buffer));
152 template <
typename TFunction,
typename... TArgs>
154 if (m_status != status::okay) {
155 throw io_error(
"Can not write to writer when in status 'closed' or 'error'");
159 func(std::forward<TArgs>(args)...);
161 m_status = status::error;
162 detail::add_to_queue(m_output_queue, std::current_exception());
163 detail::add_end_of_data_to_queue(m_output_queue);
183 options.
sync = value;
187 if (m_status == status::okay) {
188 ensure_cleanup([&](){
189 do_write(std::move(m_buffer));
190 m_output->write_end();
191 m_status = status::closed;
192 detail::add_end_of_data_to_queue(m_output_queue);
222 template <
typename... TArgs>
224 m_file(file.check()),
225 m_output_queue(
detail::get_output_queue_size(),
"raw_output"),
226 m_output(
osmium::io::
detail::OutputFormatFactory::instance().create_output(m_file, m_output_queue)),
228 m_buffer_size(default_buffer_size),
235 (void)std::initializer_list<int>{
236 (set_option(options, args), 0)...
239 if (options.header.get(
"generator") ==
"") {
243 std::unique_ptr<osmium::io::Compressor> compressor =
244 CompressionFactory::instance().create_compressor(file.
compression(),
245 osmium::io::detail::open_for_writing(m_file.
filename(), options.allow_overwrite),
248 std::promise<bool> write_promise;
249 m_write_future = write_promise.get_future();
252 ensure_cleanup([&](){
253 m_output->write_header(options.header);
257 template <
typename... TArgs>
258 explicit Writer(
const std::string& filename, TArgs&&... args) :
262 template <
typename... TArgs>
263 explicit Writer(
const char* filename, TArgs&&... args) :
285 return m_buffer_size;
293 m_buffer_size = size;
304 ensure_cleanup([&](){
318 ensure_cleanup([&](){
320 do_write(std::move(buffer));
332 ensure_cleanup([&](){
358 if (m_write_future.valid()) {
359 m_write_future.get();
369 #endif // OSMIUM_IO_WRITER_HPP fsync sync
Definition: writer.hpp:171
~Writer() noexcept
Definition: writer.hpp:273
Definition: writer.hpp:168
void do_write(osmium::memory::Buffer &&buffer)
Definition: writer.hpp:134
void do_flush()
Definition: writer.hpp:140
void swap(Buffer &lhs, Buffer &rhs)
Definition: buffer.hpp:765
void do_close()
Definition: writer.hpp:186
osmium::thread::thread_handler m_thread
Definition: writer.hpp:116
osmium::io::Header header
Definition: writer.hpp:169
osmium::memory::Buffer m_buffer
Definition: writer.hpp:110
std::unique_ptr< osmium::io::detail::OutputFormat > m_output
Definition: writer.hpp:108
void set_buffer_size(size_t size) noexcept
Definition: writer.hpp:292
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:125
void operator()(osmium::memory::Buffer &&buffer)
Definition: writer.hpp:317
Namespace for everything in the Osmium library.
Definition: assembler.hpp:63
status
Definition: writer.hpp:118
#define LIBOSMIUM_VERSION_STRING
Definition: version.hpp:40
size_t buffer_size() const noexcept
Definition: writer.hpp:284
fsync
Definition: writer_options.hpp:51
static void set_option(options_type &options, fsync value)
Definition: writer.hpp:182
void push_back(const osmium::memory::Item &item)
Definition: buffer.hpp:521
size_t m_buffer_size
Definition: writer.hpp:112
void close()
Definition: writer.hpp:355
void flush()
Definition: writer.hpp:303
osmium::io::File m_file
Definition: writer.hpp:104
size_t committed() const noexcept
Definition: buffer.hpp:263
size_t get_max_queue_size(const char *queue_name, size_t default_value) noexcept
Definition: config.hpp:69
Definition: buffer.hpp:97
Definition: buffer.hpp:58
const char * buffer() const noexcept
Definition: file.hpp:156
static void set_option(options_type &options, overwrite value)
Definition: writer.hpp:178
Definition: writer.hpp:100
Writer(const char *filename, TArgs &&... args)
Definition: writer.hpp:263
std::future< bool > m_write_future
Definition: writer.hpp:114
Writer(const osmium::io::File &file, TArgs &&... args)
Definition: writer.hpp:223
void check_for_exception(std::future< T > &future)
Definition: util.hpp:55
Writer(const std::string &filename, TArgs &&... args)
Definition: writer.hpp:258
overwrite allow_overwrite
Definition: writer.hpp:170
static void set_option(options_type &options, const osmium::io::Header &header)
Definition: writer.hpp:174
detail::future_string_queue_type m_output_queue
Definition: writer.hpp:106
file_compression compression() const noexcept
Definition: file.hpp:289
File & filename(const std::string &filename)
Definition: file.hpp:307
void operator()(const osmium::memory::Item &item)
Definition: writer.hpp:331
void ensure_cleanup(TFunction func, TArgs &&... args)
Definition: writer.hpp:153
void set(const std::string &key, const std::string &value)
Definition: options.hpp:87
overwrite
Definition: writer_options.hpp:43