Struct cnfs::File

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

File Interface

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impl File

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pub fn write_all(&mut self, data: &[u8]) -> CNFSResult

Attempts to write an entire buffer into a file.

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pub fn write(&mut self, src: &[u8]) -> CNFSResult<usize>

Write a buffer into a file, returning how many bytes were written.

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pub fn read(&mut self, dest: &mut [u8]) -> CNFSResult<usize>

Pull some bytes from this file into the specified buffer, returning how many bytes were read.

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pub fn read_to_end(&mut self, dest: &mut Vec<u8>) -> CNFSResult

Read all bytes until EOF in this source, placing them into dest.

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pub fn seek(&mut self, new_offset: u64) -> CNFSResult

Seek to an offset

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pub fn sync(&mut self) -> CNFSResult

Synchronize the data to filesystem.

Trait Implementations§

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impl Drop for File

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl Freeze for File

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impl !RefUnwindSafe for File

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impl Send for File

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impl Sync for File

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impl Unpin for File

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impl !UnwindSafe for File

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.