38 lines
911 B
Rust
38 lines
911 B
Rust
use std::{error::Error, sync::Arc};
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use super::{Config, KvTree};
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use crate::Result;
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pub trait KeyValueDatabaseEngine: Send + Sync {
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fn open(config: &Config) -> Result<Self>
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where
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Self: Sized;
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fn open_tree(&self, name: &'static str) -> Result<Arc<dyn KvTree>>;
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fn flush(&self) -> Result<()>;
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#[allow(dead_code)]
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fn sync(&self) -> Result<()> { Ok(()) }
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fn cork(&self) -> Result<()> { Ok(()) }
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fn uncork(&self) -> Result<()> { Ok(()) }
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fn corked(&self) -> bool { false }
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fn cleanup(&self) -> Result<()> { Ok(()) }
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fn memory_usage(&self) -> Result<String> {
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Ok("Current database engine does not support memory usage reporting.".to_owned())
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}
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#[allow(dead_code)]
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fn clear_caches(&self) {}
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fn backup(&self) -> Result<(), Box<dyn Error>> { unimplemented!() }
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fn backup_list(&self) -> Result<String> { Ok(String::new()) }
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fn file_list(&self) -> Result<String> { Ok(String::new()) }
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}
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