Struct dbsdk_rs::io::FileStream

pub struct FileStream { /* private fields */ }

Implementations

impl FileStream

pub fn open(path: &String, mode: FileMode) -> Result<FileStream, IOError>

Open a file from the filesystem (paths are given in the form of “/[device]/path/to/file”)
Valid devices are “cd”, “ma”, and “mb”

pub fn allocate_memory_card(
    path: &String,
    icondata: &[u8; 128],
    iconpalette: &[u16; 16],
    blocks: i32
) -> Result<FileStream, IOError>

Allocate a new file on the memory card device given in the path string of the given size in 512-byte blocks for writing

pub fn read_to_string(&self, buffer: &mut String) -> Result<usize, IOError>

Read file until EOF into the given string buffer

pub fn read(&self, buffer: &mut [u8]) -> Result<usize, IOError>

Try to read a number of bytes from the stream, returning the actual number of bytes read

pub fn read_element<T: Copy>(&self) -> Result<T, IOError>

Read an element from the stream, returning an error if there aren’t enough bytes in the stream or some other error occurs

pub fn write(&self, buffer: &[u8]) -> Result<i32, IOError>

Try to write a buffer of bytes to the stream, returning the actual number of bytes written

pub fn seek(&self, position: i32, origin: SeekOrigin) -> Result<i32, IOError>

Try to seek the stream to the given position, returning the new position

pub fn position(&self) -> i32

Get the position within the stream

pub fn end_of_file(&self) -> bool

Gets whether the stream has reached its end

Trait Implementations

impl Drop for FileStream

fn drop(&mut self)

Executes the destructor for this type.