cuprate_consensus_context::weight

Struct BlockWeightsCache

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pub struct BlockWeightsCache { /* private fields */ }
Expand description

A cache used to calculate block weight limits, the effective median and long term block weights.

These calculations require a lot of data from the database so by caching this data it reduces the load on the database.

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impl BlockWeightsCache

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pub async fn init_from_chain_height<D: Database + Clone>( chain_height: usize, config: BlockWeightsCacheConfig, database: D, chain: Chain, ) -> Result<Self, ContextCacheError>

Initialize the BlockWeightsCache at the the given chain height.

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pub async fn pop_blocks_main_chain<D: Database + Clone>( &mut self, numb_blocks: usize, database: D, ) -> Result<(), ContextCacheError>

Pop some blocks from the top of the cache.

The cache will be returned to the state it would have been in numb_blocks ago.

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pub fn new_block( &mut self, block_height: usize, block_weight: usize, long_term_weight: usize, )

Add a new block to the cache.

The block_height MUST be one more than the last height the cache has seen.

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pub fn median_long_term_weight(&self) -> usize

Returns the median long term weight over the last LONG_TERM_WINDOW blocks, or custom amount of blocks in the config.

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pub fn median_short_term_weight(&self) -> usize

Returns the median weight over the last SHORT_TERM_WINDOW blocks, or custom amount of blocks in the config.

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pub fn effective_median_block_weight(&self, hf: HardFork) -> usize

Returns the effective median weight, used for block reward calculations and to calculate the block weight limit.

See: https://cuprate.github.io/monero-book/consensus_rules/blocks/weight_limit.html#calculating-effective-median-weight

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pub fn median_for_block_reward(&self, hf: HardFork) -> usize

Returns the median weight used to calculate block reward punishment.

https://cuprate.github.io/monero-book/consensus_rules/blocks/reward.html#calculating-block-reward

Trait Implementations§

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impl Clone for BlockWeightsCache

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fn clone(&self) -> BlockWeightsCache

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BlockWeightsCache

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

Formats the value using the given formatter. Read more
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impl PartialEq for BlockWeightsCache

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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impl StructuralPartialEq for BlockWeightsCache

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Size: 152 bytes