Struct rc_zip::fsm::EntryFsm

pub struct EntryFsm { /* private fields */ }

A state machine that can parse a zip entry

Implementations

impl EntryFsm

pub fn new(entry: Option<Entry>, buffer: Option<Buffer>) -> Self

Create a new state machine for decompressing a zip entry

pub fn wants_read(&self) -> bool

If this returns true, the caller should read data from into Self::space — without forgetting to call Self::fill with the number of bytes written.

pub fn process_till_header(&mut self) -> Result<Option<&Entry>, Error>

Like process, but only processes the header. If this returns Ok(None), the caller should read more data and call this function again.

pub fn process( self, out: &mut [u8] ) -> Result<FsmResult<(Self, DecompressOutcome), Buffer>, Error>

Process the input and write the output to the given buffer

This function will return FsmResult::Continue if it needs more input to continue, or if it needs more space to write to. It will return FsmResult::Done when all the input has been decompressed and all the output has been written.

Also, after writing all the output, process will read the data descriptor (if any), and make sur the CRC32 hash and the uncompressed size match the expected values.

pub fn space(&mut self) -> &mut [u8]

Returns a mutable slice with all the available space to write to.

After writing to this, call Self::fill with the number of bytes written.

pub fn fill(&mut self, count: usize) -> usize

After having written data to Self::space, call this to indicate how many bytes were written.