[−][src]Struct embedded_sdmmc::Controller
A Controller
wraps a block device and gives access to the volumes within it.
Methods
impl<D, T> Controller<D, T> where
D: BlockDevice,
T: TimeSource,
<D as BlockDevice>::Error: Debug,
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D: BlockDevice,
T: TimeSource,
<D as BlockDevice>::Error: Debug,
pub fn new(block_device: D, timesource: T) -> Controller<D, T>
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Create a new Disk Controller using a generic BlockDevice
. From this
controller we can open volumes (partitions) and with those we can open
files.
pub fn device(&mut self) -> &mut D
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Temporarily get access to the underlying block device.
pub fn get_volume(
&mut self,
volume_idx: VolumeIdx
) -> Result<Volume, Error<D::Error>>
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&mut self,
volume_idx: VolumeIdx
) -> Result<Volume, Error<D::Error>>
Get a volume (or partition) based on entries in the Master Boot Record. We do not support GUID Partition Table disks. Nor do we support any concept of drive letters - that is for a higher layer to handle.
pub fn open_root_dir(
&mut self,
volume: &Volume
) -> Result<Directory, Error<D::Error>>
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&mut self,
volume: &Volume
) -> Result<Directory, Error<D::Error>>
Open a directory. You can then read the directory entries in a random
order using get_directory_entry
.
TODO: Work out how to prevent damage occuring to the file system while this directory handle is open. In particular, stop this directory being unlinked.
pub fn open_dir(
&mut self,
volume: &Volume,
parent_dir: &Directory,
name: &str
) -> Result<Directory, Error<D::Error>>
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&mut self,
volume: &Volume,
parent_dir: &Directory,
name: &str
) -> Result<Directory, Error<D::Error>>
Open a directory. You can then read the directory entries in a random
order using get_directory_entry
.
TODO: Work out how to prevent damage occuring to the file system while this directory handle is open. In particular, stop this directory being unlinked.
pub fn close_dir(&mut self, volume: &Volume, dir: Directory)
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Close a directory. You cannot perform operations on an open directory and so must close it if you want to do something with it.
pub fn find_directory_entry(
&mut self,
volume: &Volume,
dir: &Directory,
name: &str
) -> Result<DirEntry, Error<D::Error>>
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&mut self,
volume: &Volume,
dir: &Directory,
name: &str
) -> Result<DirEntry, Error<D::Error>>
Look in a directory for a named file.
pub fn iterate_dir<F>(
&mut self,
volume: &Volume,
dir: &Directory,
func: F
) -> Result<(), Error<D::Error>> where
F: FnMut(&DirEntry),
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&mut self,
volume: &Volume,
dir: &Directory,
func: F
) -> Result<(), Error<D::Error>> where
F: FnMut(&DirEntry),
Call a callback function for each directory entry in a directory.
pub fn open_file_in_dir(
&mut self,
volume: &mut Volume,
dir: &Directory,
name: &str,
mode: Mode
) -> Result<File, Error<D::Error>>
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&mut self,
volume: &mut Volume,
dir: &Directory,
name: &str,
mode: Mode
) -> Result<File, Error<D::Error>>
Open a file with the given full path. A file can only be opened once.
pub fn read(
&mut self,
volume: &Volume,
file: &mut File,
buffer: &mut [u8]
) -> Result<usize, Error<D::Error>>
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&mut self,
volume: &Volume,
file: &mut File,
buffer: &mut [u8]
) -> Result<usize, Error<D::Error>>
Read from an open file.
pub fn write(
&mut self,
volume: &mut Volume,
file: &mut File,
buffer: &[u8]
) -> Result<usize, Error<D::Error>>
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&mut self,
volume: &mut Volume,
file: &mut File,
buffer: &[u8]
) -> Result<usize, Error<D::Error>>
Write to a open file.
pub fn close_file(
&mut self,
volume: &Volume,
file: File
) -> Result<(), Error<D::Error>>
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&mut self,
volume: &Volume,
file: File
) -> Result<(), Error<D::Error>>
Close a file with the given full path.
Auto Trait Implementations
impl<D, T> RefUnwindSafe for Controller<D, T> where
D: RefUnwindSafe,
T: RefUnwindSafe,
D: RefUnwindSafe,
T: RefUnwindSafe,
impl<D, T> Send for Controller<D, T> where
D: Send,
T: Send,
D: Send,
T: Send,
impl<D, T> Sync for Controller<D, T> where
D: Sync,
T: Sync,
D: Sync,
T: Sync,
impl<D, T> Unpin for Controller<D, T> where
D: Unpin,
T: Unpin,
D: Unpin,
T: Unpin,
impl<D, T> UnwindSafe for Controller<D, T> where
D: UnwindSafe,
T: UnwindSafe,
D: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,