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DataDirectory

Struct DataDirectory 

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

An exclusively owned Hyphae data directory.

The operating-system lock is held until this value is dropped. Opening the same directory for a second writer fails instead of relying on cooperative process behavior.

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impl DataDirectory

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pub fn open(path: impl AsRef<Path>) -> Result<Self, DataDirectoryError>

Opens an existing data directory or initializes a new one.

§Errors

Returns an error when the directory cannot be initialized, is owned by another writer, has a malformed marker, or uses a future format.

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pub fn path(&self) -> &Path

Returns the canonical root path.

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pub fn active_log_path(&self) -> PathBuf

Returns the path of the active append-only log segment.

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pub fn open_log(&self) -> Result<OpenedLog<'_>, LogError>

Opens the initial durable log while borrowing this directory lock.

The returned writer cannot outlive the exclusive data-directory owner.

§Errors

Returns an error for I/O failures or any complete invalid frame.

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impl Debug for DataDirectory

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Drop for DataDirectory

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

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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.