40 lines
1.3 KiB
Rust
40 lines
1.3 KiB
Rust
//! Garbage collection process that runs at start-up to clean up the database.
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use crate::hot_cold_store::HotColdDB;
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use crate::{Error, LevelDB, StoreOp};
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use slog::debug;
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use types::EthSpec;
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impl<E> HotColdDB<E, LevelDB<E>, LevelDB<E>>
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where
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E: EthSpec,
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{
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/// Clean up the database by performing one-off maintenance at start-up.
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pub fn remove_garbage(&self) -> Result<(), Error> {
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self.delete_temp_states()?;
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Ok(())
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}
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/// Delete the temporary states that were leftover by failed block imports.
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pub fn delete_temp_states(&self) -> Result<(), Error> {
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let delete_ops =
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self.iter_temporary_state_roots()
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.try_fold(vec![], |mut ops, state_root| {
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let state_root = state_root?;
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ops.push(StoreOp::DeleteState(state_root, None));
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ops.push(StoreOp::DeleteStateTemporaryFlag(state_root));
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Result::<_, Error>::Ok(ops)
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})?;
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if !delete_ops.is_empty() {
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debug!(
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self.log,
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"Garbage collecting {} temporary states",
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delete_ops.len() / 2
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);
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self.do_atomically_with_block_and_blobs_cache(delete_ops)?;
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}
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Ok(())
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}
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}
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