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MemoryTracker

Struct MemoryTracker 

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

A simple memory usage tracker that can be queried during parsing.

This helps embedded systems monitor and limit memory consumption. Note: This tracks allocations made through the tracker, not global heap usage.

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impl MemoryTracker

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pub fn new() -> Self

Creates a new memory tracker with no limit.

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pub fn with_limit(limit: usize) -> Self

Creates a new memory tracker with a specified byte limit.

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pub fn allocate(&self, bytes: usize) -> Result<(), &'static str>

Records an allocation. Returns Err if it would exceed the limit.

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pub fn deallocate(&self, bytes: usize)

Records a deallocation.

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pub fn current(&self) -> usize

Returns current bytes allocated.

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pub fn peak(&self) -> usize

Returns peak bytes allocated.

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pub fn limit(&self) -> usize

Returns the configured limit (0 = unlimited).

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pub fn reset(&self)

Resets the tracker to zero.

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impl Debug for MemoryTracker

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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 Default for MemoryTracker

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket 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
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 = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

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.