Struct AtomicMemoryCellClocks

struct AtomicMemoryCellClocks {
    read_vector: VClock,
    write_vector: VClock,
    sync_vector: VClock,
    size: Option<Size>,
}

Externally stored memory cell clocks explicitly to reduce memory usage for the common case where no atomic operations exists on the memory cell.

Fields

read_vector: VClock

The clock-vector of the timestamp of the last atomic read operation performed by each thread. This detects potential data-races between atomic read and non-atomic write operations.

write_vector: VClock

The clock-vector of the timestamp of the last atomic write operation performed by each thread. This detects potential data-races between atomic write and non-atomic read or write operations.

sync_vector: VClock

Synchronization vector for acquire-release semantics contains the vector of timestamps that will happen-before a thread if an acquire-load is performed on the data.

size: Option<Size>

The size of accesses to this atomic location. We use this to detect non-synchronized mixed-size accesses. Since all accesses must be aligned to their size, this is sufficient to detect imperfectly overlapping accesses. None indicates that we saw multiple different sizes, which is okay as long as all accesses are reads.

Implementations

impl AtomicMemoryCellClocks

fn new(size: Size) -> Self

Trait Implementations

impl Clone for AtomicMemoryCellClocks

fn clone(&self) -> AtomicMemoryCellClocks

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AtomicMemoryCellClocks

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

Formats the value using the given formatter.

impl PartialEq for AtomicMemoryCellClocks

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl Eq for AtomicMemoryCellClocks

impl StructuralPartialEq for AtomicMemoryCellClocks

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: 208 bytes