37 lines
1.7 KiB
Rust
37 lines
1.7 KiB
Rust
//! Definitions of constants.
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/// The maturity threshold for transparent coinbase outputs.
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///
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/// "A transaction MUST NOT spend a transparent output of a coinbase transaction
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/// from a block less than 100 blocks prior to the spend. Note that transparent
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/// outputs of coinbase transactions include Founders' Reward outputs and
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/// transparent Funding Stream outputs."
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/// [7.1](https://zips.z.cash/protocol/nu5.pdf#txnencodingandconsensus)
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pub const MIN_TRANSPARENT_COINBASE_MATURITY: u32 = 100;
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/// The maximum chain reorganisation height.
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///
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/// This threshold determines the maximum length of the best non-finalized chain.
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/// Larger reorganisations would allow double-spends of coinbase transactions.
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///
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/// This threshold uses the relevant chain for the block being verified by the
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/// non-finalized state.
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///
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/// For the best chain, coinbase spends are only allowed from blocks at or below
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/// the finalized tip. For other chains, coinbase spends can use outputs from
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/// early non-finalized blocks, or finalized blocks. But if that chain becomes
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/// the best chain, all non-finalized blocks past the [`MAX_BLOCK_REORG_HEIGHT`]
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/// will be finalized. This includes all mature coinbase outputs.
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pub const MAX_BLOCK_REORG_HEIGHT: u32 = MIN_TRANSPARENT_COINBASE_MATURITY - 1;
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/// The database format version, incremented each time the database format changes.
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pub const DATABASE_FORMAT_VERSION: u32 = 6;
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use lazy_static::lazy_static;
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use regex::Regex;
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lazy_static! {
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/// Regex that matches the RocksDB error when its lock file is already open.
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pub static ref LOCK_FILE_ERROR: Regex = Regex::new("(lock file).*(temporarily unavailable)|(in use)|(being used by another process)").expect("regex is valid");
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}
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