sqlitegraph::backend::native::v2::wal::transaction_coordinator

Struct TransactionIdManager

pub struct TransactionIdManager { /* private fields */ }

Expand description

Transaction ID manager with wraparound protection

Uses PostgreSQL’s pattern: stop accepting writes at 1M transactions before u64::MAX to prevent wraparound issues.

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impl TransactionIdManager

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pub const SAFETY_MARGIN: u64 = 1_000_000

Safety margin from u64::MAX (PostgreSQL pattern: 1M transactions)

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pub const WRAP_WARNING_THRESHOLD: u64

Warning threshold (10M transactions before hard limit)

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pub fn new() -> Self

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pub fn allocate(&self) -> NativeResult<TransactionId>

Allocate next transaction ID with wraparound protection

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pub fn needs_wraparound_protection(&self) -> bool

Check if transaction ID cleanup is needed

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pub fn current_id(&self) -> u64

Get current transaction ID (for monitoring)

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pub fn remaining_ids(&self) -> u64

Get remaining transaction IDs before hard limit

Auto Trait Implementations§

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impl !UnwindSafe for TransactionIdManager

Blanket Implementations§

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

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where T: ?Sized,

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impl<T> BorrowMut<T> for T
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impl<T> From<T> for T

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fn from(t: T) -> T

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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> IntoEither for T

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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