Struct ShareFilesNaming 

pub struct ShareFilesNaming(/* private fields */);

Naming scheme for table and blob files in the shared_checksum directory.

Mirrors BackupEngineOptions::ShareFilesNaming in include/rocksdb/utilities/backup_engine.h. It is a bit mask with two parts: the low 16 bits select one naming scheme, the high bits carry independent flags. RocksDB masks the two apart with Self::MASK_NO_NAMING_FLAGS and Self::MASK_NAMING_FLAGS.

Only takes effect when both share_table_files and share_files_with_checksum are true.

Implementations

impl ShareFilesNaming

pub const LEGACY_CRC32C_AND_FILE_SIZE: Self

kLegacyCrc32cAndFileSize. Names files <file_number>_<crc32c>_<file_size>.sst and .blob. Only recommended for preserving old behaviour: the triple can collide at massive scale, and picking the name requires reading the whole file to checksum it.

pub const USE_DB_SESSION_ID: Self

kUseDbSessionId. Names SST files <file_number>_s<db_session_id>.sst, which is strongly unique and known without reading the file. Blob files and SST files with no session id fall back to Self::LEGACY_CRC32C_AND_FILE_SIZE.

pub const FLAG_INCLUDE_FILE_SIZE: Self

kFlagIncludeFileSize. Inserts _<file_size> before the extension when the scheme does not already include it.

This is bit 31. The C API passes the mask as an int, so a value carrying this flag reads back negative from Self::bits.

pub const MASK_NO_NAMING_FLAGS: Self

kMaskNoNamingFlags. Selects the naming scheme bits.

pub const MASK_NAMING_FLAGS: Self

kMaskNamingFlags. Selects the flag bits.

pub const DEFAULT: Self

The RocksDB default, Self::USE_DB_SESSION_ID with Self::FLAG_INCLUDE_FILE_SIZE.

pub const fn bits(self) -> c_int

Returns the raw mask as the C API represents it.

pub const fn contains(self, other: Self) -> bool

Returns true when every bit set in other is also set in self.

Trait Implementations

impl BitOr for ShareFilesNaming

type Output = ShareFilesNaming

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self

Performs the | operation.

impl Clone for ShareFilesNaming

fn clone(&self) -> ShareFilesNaming

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ShareFilesNaming

impl Debug for ShareFilesNaming

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ShareFilesNaming

impl PartialEq for ShareFilesNaming

fn eq(&self, other: &ShareFilesNaming) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ShareFilesNaming