⚠️ VeridianOS Kernel Documentation - This is low-level kernel code. All functions are unsafe unless explicitly marked otherwise. no_std

VirtioBlockBackend

veridian_kernel::fs::blockfs

Struct VirtioBlockBackend 

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pub struct VirtioBlockBackend;
Expand description

Adapter that wraps the global virtio-blk device as a DiskBackend.

Translates 4KB BlockFS blocks into 512-byte virtio sector reads/writes.

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impl DiskBackend for VirtioBlockBackend

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fn read_block(&self, block_num: u64, buf: &mut [u8]) -> Result<(), KernelError>

Read a single 4KB block from the disk. Read more
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fn write_block(&self, block_num: u64, data: &[u8]) -> Result<(), KernelError>

Write a single 4KB block to the disk. Read more
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fn block_count(&self) -> u64

Total capacity in BlockFS-sized blocks (4KB each).
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fn is_read_only(&self) -> bool

Whether the device is read-only.

Auto Trait Implementations§

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impl Freeze for VirtioBlockBackend

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impl RefUnwindSafe for VirtioBlockBackend

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impl Send for VirtioBlockBackend

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impl Sync for VirtioBlockBackend

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impl Unpin for VirtioBlockBackend

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impl UnwindSafe for VirtioBlockBackend

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 = Infallible

The type returned in the event of a conversion error.
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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>,

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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.