47 lines
1.2 KiB
Rust
47 lines
1.2 KiB
Rust
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use serde::{Deserialize, Serialize};
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use crate::lsm_storage::LsmStorageState;
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#[derive(Debug, Clone)]
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pub struct SimpleLeveledCompactionOptions {
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pub size_ratio_percent: usize,
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pub level0_file_num_compaction_trigger: usize,
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pub max_levels: usize,
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}
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#[derive(Debug, Serialize, Deserialize)]
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pub struct SimpleLeveledCompactionTask {
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// if upper_level is `None`, then it is L0 compaction
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pub upper_level: Option<usize>,
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pub upper_level_sst_ids: Vec<usize>,
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pub lower_level: usize,
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pub lower_level_sst_ids: Vec<usize>,
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pub is_lower_level_bottom_level: bool,
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}
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pub struct SimpleLeveledCompactionController {
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options: SimpleLeveledCompactionOptions,
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}
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impl SimpleLeveledCompactionController {
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pub fn new(options: SimpleLeveledCompactionOptions) -> Self {
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Self { options }
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}
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pub fn generate_compaction_task(
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&self,
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snapshot: &LsmStorageState,
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) -> Option<SimpleLeveledCompactionTask> {
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unimplemented!()
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}
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pub fn apply_compaction_result(
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&self,
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snapshot: &LsmStorageState,
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task: &SimpleLeveledCompactionTask,
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output: &[usize],
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) -> (LsmStorageState, Vec<usize>) {
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unimplemented!()
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}
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}
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