wal_rs

Struct WAL

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pub struct WAL { /* private fields */ }
Expand description

WAL write-ahead-log implementation

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impl WAL

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pub fn open<S: AsRef<OsStr> + ?Sized>(dir: &S, cfg: Config) -> Result<WAL>

Opens a wal with given dir.

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pub fn write(&mut self, data: &[u8]) -> Result<()>

Write bytes to wal

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pub fn batch_write(&mut self, data: &[&[u8]]) -> Result<()>

Writes multiple entries to wal.

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pub fn read(&mut self, n: usize) -> Result<Vec<Vec<u8>>>

Read N entries from wal.

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pub fn len(&self) -> usize

Returns entry number in the wal.

Auto Trait Implementations§

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impl Freeze for WAL

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impl RefUnwindSafe for WAL

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impl Send for WAL

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impl Sync for WAL

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impl Unpin for WAL

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impl UnwindSafe for WAL

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.