Enum ShardLayout

pub enum ShardLayout {
    V0(ShardLayoutV0),
    V1(ShardLayoutV1),
    V2(ShardLayoutV2),
}

A versioned struct that contains all information needed to assign accounts to shards.

Because of re-sharding, the chain may use different shard layout to split shards at different times. Currently, ShardLayout is stored as part of EpochConfig, which is generated each epoch given the epoch protocol version. In mainnet/testnet, we use two shard layouts since re-sharding has only happened once. It is stored as part of genesis config, see default_simple_nightshade_shard_layout() Below is an overview for some important functionalities of ShardLayout interface.

JSON schema

{
 "description": "A versioned struct that contains all information needed to assign accounts to shards.\n\nBecause of re-sharding, the chain may use different shard layout to split shards at different\ntimes. Currently, `ShardLayout` is stored as part of `EpochConfig`, which is generated each\nepoch given the epoch protocol version. In mainnet/testnet, we use two shard layouts since\nre-sharding has only happened once. It is stored as part of genesis config, see\ndefault_simple_nightshade_shard_layout() Below is an overview for some important\nfunctionalities of ShardLayout interface.",
 "oneOf": [
   {
     "type": "object",
     "required": [
       "V0"
     ],
     "properties": {
       "V0": {
         "$ref": "#/components/schemas/ShardLayoutV0"
       }
     },
     "additionalProperties": false
   },
   {
     "type": "object",
     "required": [
       "V1"
     ],
     "properties": {
       "V1": {
         "$ref": "#/components/schemas/ShardLayoutV1"
       }
     },
     "additionalProperties": false
   },
   {
     "type": "object",
     "required": [
       "V2"
     ],
     "properties": {
       "V2": {
         "$ref": "#/components/schemas/ShardLayoutV2"
       }
     },
     "additionalProperties": false
   }
 ]
}

Variants

V0(ShardLayoutV0)

V1(ShardLayoutV1)

V2(ShardLayoutV2)

Trait Implementations

impl Clone for ShardLayout

fn clone(&self) -> ShardLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ShardLayout

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ShardLayout

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&ShardLayout> for ShardLayout

fn from(value: &ShardLayout) -> Self

Converts to this type from the input type.

impl From<ShardLayoutV0> for ShardLayout

fn from(value: ShardLayoutV0) -> Self

Converts to this type from the input type.

impl From<ShardLayoutV1> for ShardLayout

fn from(value: ShardLayoutV1) -> Self

Converts to this type from the input type.

impl From<ShardLayoutV2> for ShardLayout

fn from(value: ShardLayoutV2) -> Self

Converts to this type from the input type.

impl Serialize for ShardLayout

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

where __S: Serializer,

Serialize this value into the given Serde serializer.