ROFile

Struct ROFile 

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pub struct ROFile<'a, S>
where S: Read + Seek,
{ /* private fields */ }
Expand description

A read-only file within a FAT filesystem

Note: whether or not your FileSystem is RO or R/W, this won’t update the ROFile::last_accessed_date() If you want to avoid this behavior in a R/W filesystem, use RWFile

Methods from Deref<Target = Properties>§

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pub fn path(&self) -> &Path

Get the corresponding Path to this entry

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pub fn sfn(&self) -> String

Get the corresponding short filename for this entry

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pub fn is_dir(&self) -> bool

Check whether this entry belongs to a directory

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pub fn is_file(&self) -> bool

Check whether this entry belongs to a file

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pub fn attributes(&self) -> &Attributes

Get the corresponding Attributes to this entry

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pub fn creation_time(&self) -> &Option<PrimitiveDateTime>

Find out when this entry was created (max resolution: 1ms)

Returns an Option containing a PrimitiveDateTime from the time crate, since that field is specified as optional in the FAT32 specification

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pub fn modification_time(&self) -> &PrimitiveDateTime

Find out when this entry was last modified (max resolution: 2 secs)

Returns a PrimitiveDateTime from the time crate

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pub fn last_accessed_date(&self) -> &Option<Date>

Find out when this entry was last accessed (max resolution: 1 day)

Returns an Option containing a Date from the time crate, since that field is specified as optional in the FAT32 specification

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pub fn file_size(&self) -> u32

Find out the size of this entry

Always returns 0 for directories

Trait Implementations§

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impl<'a, S> Debug for ROFile<'a, S>
where S: Read + Seek + Debug,

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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<S> Deref for ROFile<'_, S>
where S: Read + Seek,

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type Target = Properties

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<S> DerefMut for ROFile<'_, S>
where S: Read + Seek,

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.
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impl<S> ErrorType for ROFile<'_, S>
where S: Read + Seek,

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type Error = <S as ErrorType>::Error

Error type of all the IO operations on this type.
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impl<'a, S> From<ROFile<'a, S>> for RWFile<'a, S>
where S: Read + Write + Seek,

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fn from(value: ROFile<'a, S>) -> Self

Converts to this type from the input type.
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impl<S> Read for ROFile<'_, S>
where S: Read + Seek,

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fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error>

Read some bytes from this source into the specified buffer, returning how many bytes were read. Read more
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fn read_exact( &mut self, buf: &mut [u8], ) -> Result<(), ReadExactError<Self::Error>>

Read the exact number of bytes required to fill buf. Read more
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impl<S> Seek for ROFile<'_, S>
where S: Read + Seek,

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fn seek(&mut self, pos: SeekFrom) -> Result<u64, Self::Error>

Seek to an offset, in bytes, in a stream.
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fn rewind(&mut self) -> Result<(), Self::Error>

Rewind to the beginning of a stream.
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fn stream_position(&mut self) -> Result<u64, Self::Error>

Returns the current seek position from the start of the stream.

Auto Trait Implementations§

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impl<'a, S> Freeze for ROFile<'a, S>

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impl<'a, S> !RefUnwindSafe for ROFile<'a, S>

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impl<'a, S> !Send for ROFile<'a, S>

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impl<'a, S> !Sync for ROFile<'a, S>

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impl<'a, S> Unpin for ROFile<'a, S>

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impl<'a, S> !UnwindSafe for ROFile<'a, S>

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<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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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.