# Struct os::fs::easy_fs::efs::EasyFileSystem

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    pub struct EasyFileSystem {
        pub block_device: Arc<dyn BlockDevice>,
        pub inode_bitmap: Bitmap,
        pub data_bitmap: Bitmap,
        inode_area_start_block: u32,
        data_area_start_block: u32,
    }

## Fields

`block_device: Arc<dyn BlockDevice>` `inode_bitmap: Bitmap` `data_bitmap: Bitmap` `inode_area_start_block: u32` `data_area_start_block: u32`

## Implementations

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### impl EasyFileSystem

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#### pub fn create(
block_device: Arc<dyn BlockDevice>,
total_blocks: u32,
inode_bitmap_blocks: u32
) -> Arc<Mutex<Self>>

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#### pub fn open(block_device: Arc<dyn BlockDevice>) -> Arc<Mutex<Self>>

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#### pub fn root_inode(efs: &Arc<Mutex<Self>>) -> Inode

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#### pub fn get_disk_inode_pos(&self, inode_id: u32) -> ( u32, usize )

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#### pub fn get_data_block_id(&self, data_block_id: u32) -> u32

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#### pub fn alloc_inode(&mut self) -> u32

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#### pub fn alloc_data(&mut self) -> u32

Return a block ID not ID in the data area.

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#### pub fn dealloc_data(&mut self, block_id: u32)

## Auto Trait Implementations

### impl !RefUnwindSafe for EasyFileSystem

### impl Send for EasyFileSystem

### impl Sync for EasyFileSystem

### impl Unpin for EasyFileSystem

### impl !UnwindSafe for EasyFileSystem

## 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.