Type Alias Mutation

pub type Mutation = MutationV43;

The journal consists of these records which will be replayed at mount time. Within a transaction, these are stored as a set which allows some mutations to be deduplicated and found (and we require custom comparison functions below). For example, we need to be able to find object size changes.

Aliased Type

enum Mutation {
    ObjectStore(ObjectStoreMutationV43),
    EncryptedObjectStore(Box<[u8]>),
    Allocator(AllocatorMutationV32),
    BeginFlush,
    EndFlush,
    DeleteVolume,
    UpdateBorrowed(u64),
    UpdateMutationsKey(UpdateMutationsKeyV40),
    CreateInternalDir(u64),
}

Variants

ObjectStore(ObjectStoreMutationV43)

EncryptedObjectStore(Box<[u8]>)

Allocator(AllocatorMutationV32)

BeginFlush

EndFlush

DeleteVolume

UpdateBorrowed(u64)

UpdateMutationsKey(UpdateMutationsKeyV40)

CreateInternalDir(u64)

Implementations

impl Mutation

pub fn insert_object(key: ObjectKey, value: ObjectValue) -> Self

pub fn replace_or_insert_object(key: ObjectKey, value: ObjectValue) -> Self

pub fn merge_object(key: ObjectKey, value: ObjectValue) -> Self

pub fn update_mutations_key(key: WrappedKey) -> Self

Trait Implementations

impl From<MutationV40> for Mutation

fn from(item: MutationV40) -> Self

Converts to this type from the input type.

impl VersionedLatest for Mutation

fn deserialize_from_version<R>(reader: &mut R, version: Version) -> Result<Self>

where R: Read, Self: Sized,

Deserializes from a given version format and upgrades to the latest version.

fn deserialize_with_version<R>(reader: &mut R) -> Result<(Self, Version)>

where R: Read, Self: Sized,

Like deserialize_from_version but reads Version from reader first, then uses it to deserialize self.

fn serialize_with_version<W>(&self, writer: &mut W) -> Result<()>

where W: Write, Self: Sized,

Like serialize_into but serialized Version first, then self.

impl Clone for MutationV43

fn clone(&self) -> MutationV43

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MutationV43

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MutationV43

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<MutationV41> for MutationV43

fn from(from: MutationV41) -> Self

Converts to this type from the input type.

impl Ord for MutationV43

fn cmp(&self, other: &MutationV43) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for MutationV43

fn eq(&self, other: &MutationV43) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for MutationV43

fn partial_cmp(&self, other: &MutationV43) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for MutationV43

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TypeFingerprint for MutationV43

fn fingerprint() -> String

impl Versioned for MutationV43

fn max_serialized_size() -> u64

fn deserialize_from<R>(reader: &mut R, _version: Version) -> Result<Self>

where R: Read + ?Sized, for<'de> Self: Deserialize<'de>,

fn serialize_into<W>(&self, writer: &mut W) -> Result<()>

where W: Write, Self: Serialize,

impl Eq for MutationV43

impl StructuralPartialEq for MutationV43