# Struct os::fs::easy_fs::block_cache::BlockCache

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    pub struct BlockCache {
        cache: [u8; 512],
        block_id: usize,
        block_device: Arc<dyn BlockDevice>,
        modified: bool,
    }

## Fields

`cache: [u8; 512]` `block_id: usize` `block_device: Arc<dyn BlockDevice>` `modified: bool`

## Implementations

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### impl BlockCache

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#### pub fn new(block_id: usize, block_device: Arc<dyn BlockDevice>) -> Self

Load a new BlockCache from disk.

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#### fn addr_of_offset(&self, offset: usize) -> usize

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#### pub fn get_ref<T>(&self, offset: usize) -> &T where
T: Sized,

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#### pub fn get_mut<T>(&mut self, offset: usize) -> &mut T where
T: Sized,

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#### pub fn read<T, V>(&self, offset: usize, f: impl FnOnce(&T) -> V) -> V

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#### pub fn modify<T, V>(&mut self, offset: usize, f: impl FnOnce(&mut T) -> V) -> V

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#### pub fn sync(&mut self)

## Trait Implementations

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### impl Drop for BlockCache

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#### fn drop(&mut self)

Executes the destructor for this type. Read more

## Auto Trait Implementations

### impl !RefUnwindSafe for BlockCache

### impl Send for BlockCache

### impl Sync for BlockCache

### impl Unpin for BlockCache

### impl !UnwindSafe for BlockCache

## Blanket Implementations

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

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

Performs the conversion.

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

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

Performs the conversion.

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

#### type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.