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Expose max_tx_weight API (#3407)

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Add API for getting max transaction weight

Co-authored-by: Nym Seddon <unseddd@shh.xyz>
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Nym Seddon 2020-08-02 07:50:59 +00:00 committed by GitHub
parent 880f9adcd3
commit 6a12155738
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1 changed files with 10 additions and 4 deletions
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14
core/src/global.rs
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@ -17,10 +17,10 @@
//! should be used sparingly.
use crate::consensus::{
graph_weight, valid_header_version, HeaderInfo, BASE_EDGE_BITS, BLOCK_TIME_SEC,
COINBASE_MATURITY, CUT_THROUGH_HORIZON, DAY_HEIGHT, DEFAULT_MIN_EDGE_BITS,
DIFFICULTY_ADJUST_WINDOW, INITIAL_DIFFICULTY, MAX_BLOCK_WEIGHT, PROOFSIZE,
SECOND_POW_EDGE_BITS, STATE_SYNC_THRESHOLD,
graph_weight, valid_header_version, HeaderInfo, BASE_EDGE_BITS, BLOCK_KERNEL_WEIGHT,
BLOCK_OUTPUT_WEIGHT, BLOCK_TIME_SEC, COINBASE_MATURITY, CUT_THROUGH_HORIZON, DAY_HEIGHT,
DEFAULT_MIN_EDGE_BITS, DIFFICULTY_ADJUST_WINDOW, INITIAL_DIFFICULTY, MAX_BLOCK_WEIGHT,
PROOFSIZE, SECOND_POW_EDGE_BITS, STATE_SYNC_THRESHOLD,
};
use crate::core::block::HeaderVersion;
use crate::pow::{
@ -320,6 +320,12 @@ pub fn max_block_weight() -> usize {
}
}
/// Maximum allowed transaction weight (1 weight unit ~= 32 bytes)
pub fn max_tx_weight() -> u64 {
let coinbase_weight = BLOCK_OUTPUT_WEIGHT + BLOCK_KERNEL_WEIGHT;
max_block_weight().saturating_sub(coinbase_weight) as u64
}
/// Horizon at which we can cut-through and do full local pruning
pub fn cut_through_horizon() -> u32 {
match get_chain_type() {