duckdb::BufferedFileWriter Class Reference

Inheritance diagram for duckdb::BufferedFileWriter:

Collaboration diagram for duckdb::BufferedFileWriter:

Public Member Functions
DUCKDB_API	BufferedFileWriter (FileSystem &fs, const string &path, FileOpenFlags open_flags=DEFAULT_OPEN_FLAGS)
DUCKDB_API void	WriteData (const_data_ptr_t buffer, idx_t write_size) override
DUCKDB_API void	Close ()
	Flush all changes to the file and then close the file.
DUCKDB_API void	Sync ()
	Flush all changes and fsync the file to disk.
DUCKDB_API void	Flush ()
	Flush the buffer to the file (without sync)
DUCKDB_API idx_t	GetFileSize ()
	Returns the current size of the file.
DUCKDB_API void	Truncate (idx_t size)
	Truncate the size to a previous size (given that size <= GetFileSize())
DUCKDB_API idx_t	GetTotalWritten () const
Public Member Functions inherited from duckdb::WriteStream
template<class T >
void	Write (T element)

Public Attributes
FileSystem &	fs
string	path
unsafe_unique_array< data_t >	data
idx_t	offset
idx_t	total_written
unique_ptr< FileHandle >	handle

Static Public Attributes
static constexpr FileOpenFlags	DEFAULT_OPEN_FLAGS = FileFlags::FILE_FLAGS_WRITE | FileFlags::FILE_FLAGS_FILE_CREATE

Constructor & Destructor Documentation

BufferedFileWriter()

DUCKDB_API duckdb::BufferedFileWriter::BufferedFileWriter	(	FileSystem &	fs,
		const string &	path,
		FileOpenFlags	open_flags = DEFAULT_OPEN_FLAGS
	)

Serializes to a buffer allocated by the serializer, will expand when writing past the initial threshold

Member Function Documentation

WriteData()

DUCKDB_API void duckdb::BufferedFileWriter::WriteData ( const_data_ptr_t  buffer, idx_t  write_size  )

overridevirtual

Implements duckdb::WriteStream.

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The documentation for this class was generated from the following file:

• external/duckdb/duckdb.hpp