std::unique_ptr<osmium::io::Decompressor> create_decompressor(osmium::io::file_compression compression, const char* buffer, size_t size) {
auto it = m_callbacks.find(compression);
if (it != m_callbacks.end()) {
return std::unique_ptr<osmium::io::Decompressor>(std::get<2>(it->second)(buffer, size));
}
error(compression);
}
std::unique_ptr<osmium::io::Decompressor> create_decompressor(osmium::io::file_compression compression, int fd) {
auto it = m_callbacks.find(compression);
if (it != m_callbacks.end()) {
return std::unique_ptr<osmium::io::Decompressor>(std::get<1>(it->second)(fd));
}
error(compression);
}
std::unique_ptr<osmium::io::Compressor> create_compressor(osmium::io::file_compression compression, TArgs&&... args) {
auto it = m_callbacks.find(compression);
if (it != m_callbacks.end()) {
return std::unique_ptr<osmium::io::Compressor>(std::get<0>(it->second)(std::forward<TArgs>(args)...));
}
error(compression);
}
const callbacks_type& find_callbacks(osmium::io::file_compression compression) const {
const auto it = m_callbacks.find(compression);
if (it != m_callbacks.end()) {
return it->second;
}
std::string error_message{"Support for compression '"};
error_message += as_string(compression);
error_message += "' not compiled into this binary";
throw unsupported_file_format_error{error_message};
}
bool register_compression(
osmium::io::file_compression compression,
create_compressor_type create_compressor,
create_decompressor_type_fd create_decompressor_fd,
create_decompressor_type_buffer create_decompressor_buffer) {
compression_map_type::value_type cc(compression, std::make_tuple(create_compressor, create_decompressor_fd, create_decompressor_buffer));
return m_callbacks.insert(cc).second;
}
