reth_db::lockfile

Struct StorageLock

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pub struct StorageLock(/* private fields */);
Expand description

A file lock for a storage directory to ensure exclusive read-write access across different processes.

This lock stores the PID of the process holding it and is released (deleted) on a graceful shutdown. On resuming from a crash, the stored PID helps verify that no other process holds the lock.

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impl StorageLock

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pub fn try_acquire(path: &Path) -> Result<Self, StorageLockError>

Tries to acquire a write lock on the target directory, returning [StorageLockError] if unsuccessful.

Note: In-process exclusivity is not on scope. If called from the same process (or another with the same PID), it will succeed.

Trait Implementations§

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impl Clone for StorageLock

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fn clone(&self) -> StorageLock

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for StorageLock

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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 StorageLock

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl PartialEq for StorageLock

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fn eq(&self, other: &StorageLock) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for StorageLock

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impl StructuralPartialEq for StorageLock

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

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit #126799)
Performs copy-assignment from self to dst. Read more
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fn __clone_box(&self, _: Private) -> *mut ()

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

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impl<T> FmtForward for T

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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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where Self: LowerHex,

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where Self: UpperExp,

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where Self: UpperHex,

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

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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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Pipes by value. This is generally the method you want to use. Read more
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where R: 'a,

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where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

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const ALIGN: usize = _

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type Output = T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

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Calls .tap() only in debug builds, and is erased in release builds.
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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

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fn clone_into(&self, target: &mut T)

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type Error = Infallible

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fn vzip(self) -> V

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impl<T> MaybeDebug for T
where T: Debug,

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes