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https://github.com/serai-dex/serai.git
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32435d8a4c
Moves explicitly to zstd. RockDB recommends zstd, or at least lz4 over snappy, and this minimizes which dependencies we pull in.
31 lines
923 B
Rust
31 lines
923 B
Rust
mod mem;
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pub use mem::*;
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#[cfg(feature = "rocksdb")]
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mod rocks;
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#[cfg(feature = "rocksdb")]
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pub use rocks::{RocksDB, new_rocksdb};
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/// An object implementing get.
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pub trait Get {
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fn get(&self, key: impl AsRef<[u8]>) -> Option<Vec<u8>>;
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}
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/// An atomic database operation.
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#[must_use]
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pub trait DbTxn: Send + Get {
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fn put(&mut self, key: impl AsRef<[u8]>, value: impl AsRef<[u8]>);
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fn del(&mut self, key: impl AsRef<[u8]>);
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fn commit(self);
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}
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/// A database supporting atomic operations.
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pub trait Db: 'static + Send + Sync + Clone + Get {
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type Transaction<'a>: DbTxn;
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fn key(db_dst: &'static [u8], item_dst: &'static [u8], key: impl AsRef<[u8]>) -> Vec<u8> {
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let db_len = u8::try_from(db_dst.len()).unwrap();
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let dst_len = u8::try_from(item_dst.len()).unwrap();
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[[db_len].as_ref(), db_dst, [dst_len].as_ref(), item_dst, key.as_ref()].concat()
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}
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fn txn(&mut self) -> Self::Transaction<'_>;
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}
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