[−][src]Struct data_pile::Database
Append-only database. Can be safely cloned and used from different threads.
Implementations
impl Database
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pub fn new<P: AsRef<Path>>(path: P) -> Result<Self, Error>
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Open the database. Will create one if not exists.
pub fn append(&self, records: &[&[u8]]) -> Result<(), Error>
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Write an array of records to the database. This function will block if another write is still in progress.
pub fn put(&self, record: &[u8]) -> Result<(), Error>
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Put a single record (not recommended).
pub fn get_by_seqno(&self, seqno: usize) -> Option<SharedMmap>
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Get a record by its sequential number.
pub fn iter_from_seqno(&self, seqno: usize) -> Option<SeqNoIter>
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Iterate records in the order they were added starting form the given sequential number.
pub fn snapshot(&self) -> Result<impl AsRef<[u8]>, Error>
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Get the underlying raw data. You can then use this data to recover a
database (for example, on another machine). To recover you will need to
write the snapshot data to a file <database path>/data
.
Trait Implementations
Auto Trait Implementations
impl !RefUnwindSafe for Database
impl Send for Database
impl Sync for Database
impl Unpin for Database
impl !UnwindSafe for Database
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,