VClockAlloc in miri::concurrency::data_race - Rust
Description: Vector clock metadata for a logical memory allocation.

Skip to main content

## VClockAlloc

# Struct VClockAlloc

Source

    pub struct VClockAlloc {
        alloc_ranges: RefCell<DedupRangeMap<MemoryCellClocks>>,
    }

Expand description

Vector clock metadata for a logical memory allocation.

## Fields§

§`alloc_ranges: RefCell<DedupRangeMap<MemoryCellClocks>>`

Assigning each byte a MemoryCellClocks.

## Implementations§

Source§

### impl VClockAlloc

Source

#### pub fn new_allocation( global: &GlobalState, thread_mgr: &ThreadManager<'_>, len: Size, kind: MemoryKind, current_span: Span, ) -> VClockAlloc

Create a new data-race detector for newly allocated memory.

Source

#### fn find_gt_index(l: &VClock, r: &VClock) -> Option<VectorIdx>

Source

#### fn report_data_race<'tcx>( global: &GlobalState, thread_mgr: &ThreadManager<'_>, mem_clocks: &MemoryCellClocks, access: AccessType, access_size: Size, ptr_dbg: Pointer<AllocId>, ty: Option<Ty<'_>>, ) -> InterpResult<'tcx>

Report a data-race found in the program. This finds the two racing threads and the type of data-race that occurred. This will also return info about the memory location the data-race occurred in. The `ty` parameter is used for diagnostics, letting the user know which type was involved in the access.

Source

#### pub(super) fn sync_clock(&self, access_range: AllocRange) -> VClock

Return the release/acquire synchronization clock for the given memory range.

Source

#### pub fn read_non_atomic<'tcx>( &self, alloc_id: AllocId, access_range: AllocRange, read_type: NaReadType, ty: Option<Ty<'_>>, machine: &MiriMachine<'_>, ) -> InterpResult<'tcx>

Detect data-races for an unsynchronized read operation. It will not perform data-race detection if `race_detecting()` is false, either due to no threads being created or if it is temporarily disabled during a racy read or write operation for which data-race detection is handled separately, for example atomic read operations. The `ty` parameter is used for diagnostics, letting the user know which type was read.

Source

#### pub fn write_non_atomic<'tcx>( &self, alloc_id: AllocId, access_range: AllocRange, write_type: NaWriteType, ty: Option<Ty<'_>>, machine: &MiriMachine<'_>, ) -> InterpResult<'tcx>

Detect data-races for an unsynchronized write operation. It will not perform data-race detection if `race_detecting()` is false, either due to no threads being created or if it is temporarily disabled during a racy read or write operation. The `ty` parameter is used for diagnostics, letting the user know which type was written.

## Trait Implementations§

Source§

### impl Clone for VClockAlloc

Source§

#### fn clone(&self) -> VClockAlloc

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from `source`. Read more
Source§

### impl Debug for VClockAlloc

Source§

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

Formats the value using the given formatter. Read more
Source§

### impl VisitProvenance for VClockAlloc

Source§

#### fn visit_provenance(&self, _visit: &mut VisitWith<'_>)

## Auto Trait Implementations§

§

### impl !Freeze for VClockAlloc

§

### impl !RefUnwindSafe for VClockAlloc

§

### impl !Sync for VClockAlloc

§

### impl Send for VClockAlloc

§

### impl Unpin for VClockAlloc

§

### impl UnsafeUnpin for VClockAlloc

§

### impl UnwindSafe for VClockAlloc

## Blanket Implementations§

Source§

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

Source§

#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
Source§

### impl<T> Borrow<T> for T
where T: ?Sized,

Source§

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

### impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

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

Source§

#### unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (`clone_to_uninit`)
Performs copy-assignment from `self` to `dest`. Read more
Source§

### impl<T> From<T> for T

Source§

#### fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

Source§

#### fn into(self) -> U

Calls `U::from(self)`.

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

Source§

### impl<T> Same for T

Source§

#### type Output = T

Should always be `Self`
Source§

### impl<T> ToOwned for T
where T: Clone,

Source§

#### type Owned = T

The resulting type after obtaining ownership.
Source§

#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

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

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

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

Source§

#### type Error = Infallible

The type returned in the event of a conversion error.
Source§

#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

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

The type returned in the event of a conversion error.
Source§

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

## 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: 32 bytes