pub struct ModuleConsensusVersion {
pub major: u32,
pub minor: u32,
}
Expand description
Consensus version of a specific module instance
Any breaking change to the module’s consensus rules require incrementing the major part of it.
Any backwards-compatible changes with regards to clients require incrementing the minor part of it. Backwards compatible changes will typically be introducing new input/output/consensus item variants that old clients won’t understand but can safely ignore while new clients can use new functionality. It’s akin to soft forks in Bitcoin.
A module instance can run only in one consensus version, which must be the same (both major and minor) across all corresponding instances on other nodes of the federation.
When CoreConsensusVersion
changes, this can but is not requires to be
a breaking change for each module’s ModuleConsensusVersion
.
For many modules it might be preferable to implement a new
fedimint_core::core::ModuleKind
“versions” (to be implemented at the
time of writing this comment), and by running two instances of the module at
the same time (each of different ModuleKind
version), allow users to
slowly migrate to a new one. This avoids complex and error-prone server-side
consensus-migration logic.
Fields§
§major: u32
§minor: u32
Implementations§
Trait Implementations§
Source§impl Clone for ModuleConsensusVersion
impl Clone for ModuleConsensusVersion
Source§fn clone(&self) -> ModuleConsensusVersion
fn clone(&self) -> ModuleConsensusVersion
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSource§impl Debug for ModuleConsensusVersion
impl Debug for ModuleConsensusVersion
Source§impl Decodable for ModuleConsensusVersion
impl Decodable for ModuleConsensusVersion
Source§fn consensus_decode_from_finite_reader<D: Read>(
d: &mut D,
modules: &ModuleDecoderRegistry,
) -> Result<Self, DecodeError>
fn consensus_decode_from_finite_reader<D: Read>( d: &mut D, modules: &ModuleDecoderRegistry, ) -> Result<Self, DecodeError>
Self
from a size-limited reader. Read moreSource§fn consensus_decode<R: Read>(
r: &mut R,
modules: &ModuleDecoderRegistry,
) -> Result<Self, DecodeError>
fn consensus_decode<R: Read>( r: &mut R, modules: &ModuleDecoderRegistry, ) -> Result<Self, DecodeError>
Source§fn consensus_decode_hex(
hex: &str,
modules: &ModuleDecoderRegistry,
) -> Result<Self, DecodeError>
fn consensus_decode_hex( hex: &str, modules: &ModuleDecoderRegistry, ) -> Result<Self, DecodeError>
fn consensus_decode_vec( bytes: Vec<u8>, modules: &ModuleDecoderRegistry, ) -> Result<Self, DecodeError>
Source§impl<'de> Deserialize<'de> for ModuleConsensusVersion
impl<'de> Deserialize<'de> for ModuleConsensusVersion
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Source§impl Encodable for ModuleConsensusVersion
impl Encodable for ModuleConsensusVersion
Source§fn consensus_encode<W: Write>(&self, writer: &mut W) -> Result<usize, Error>
fn consensus_encode<W: Write>(&self, writer: &mut W) -> Result<usize, Error>
Source§fn consensus_encode_to_vec(&self) -> Vec<u8> ⓘ
fn consensus_encode_to_vec(&self) -> Vec<u8> ⓘ
Self::consensus_encode
to newly allocated Vec<u8>
Source§fn consensus_encode_to_hex(&self) -> String
fn consensus_encode_to_hex(&self) -> String
Source§fn consensus_encode_to_len(&self) -> usize
fn consensus_encode_to_len(&self) -> usize
Source§impl PartialEq for ModuleConsensusVersion
impl PartialEq for ModuleConsensusVersion
Source§impl Serialize for ModuleConsensusVersion
impl Serialize for ModuleConsensusVersion
impl Copy for ModuleConsensusVersion
impl Eq for ModuleConsensusVersion
impl StructuralPartialEq for ModuleConsensusVersion
Auto Trait Implementations§
impl Freeze for ModuleConsensusVersion
impl RefUnwindSafe for ModuleConsensusVersion
impl Send for ModuleConsensusVersion
impl Sync for ModuleConsensusVersion
impl Unpin for ModuleConsensusVersion
impl UnwindSafe for ModuleConsensusVersion
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