Struct PosixRandomAccessFile

pub struct PosixRandomAccessFile { /* private fields */ }

| Implements random read access in a file using | pread(). | | Instances of this class are thread-safe, as | required by the RandomAccessFile API. Instances | are immutable and Read() only calls thread-safe | library functions.

Implementations

impl PosixRandomAccessFile

pub fn new(filename: String, fd: i32, fd_limiter: *mut Limiter) -> Self

| The new instance takes ownership of | fd|. |fd_limiter| must outlive this | instance, and will be used to determine | if . |

Trait Implementations

impl Drop for PosixRandomAccessFile

fn drop(&mut self)

Executes the destructor for this type.

impl GetName for PosixRandomAccessFile

fn get_name(&self) -> &'static str

| Get a name for the file, only for error | reporting |

impl RandomAccessFileRead for PosixRandomAccessFile

fn read( &self, offset: u64, n: usize, result: *mut Slice, scratch: *mut u8, ) -> Status

| Read up to “n” bytes from the file starting | at “offset”. “scratch[0..n-1]” may be | written by this routine. Sets “*result” to | the data that was read (including if fewer | than “n” bytes were successfully read). May | set “*result” to point at data in | “scratch[0..n-1]”, so “scratch[0..n-1]” must | be live when “*result” is used. If an error | was encountered, returns a non-OK status. | | Safe for concurrent use by multiple threads.

impl RandomAccessFile for PosixRandomAccessFile