Struct rscache::Checksum

pub struct Checksum { /* fields omitted */ }

Validator for the Cache.

The Checksum is used to validate if every file used by the cache is still valid. It contains a list of entries, one entry for each index file. Every entry contains a crc and a revision.

In order to create the Checksum the create_checksum() function has to be called on Cache.

Implementations

impl Checksum

pub fn validate(&self, crcs: &[u32]) -> bool

Validates the given crcs with internal crcs of the Checksum.

Examples

// client crcs:
let crcs = vec![1593884597, 1029608590, 16840364, 4209099954, 3716821437, 165713182, 
                686540367, 4262755489, 2208636505, 3047082366, 586413816, 2890424900, 
                3411535427, 3178880569, 153718440, 3849392898, 0, 2813112885, 1461700456, 
                2751169400, 2927815226];
 
let valid = checksum.validate(&crcs);
 
assert!(valid);

pub fn encode(self) -> Result<Vec<u8>>

Consumes the Checksum and encodes it into a byte buffer.

After encoding the checksum it can be sent to the client.

Errors

Returns a CacheError if the encoding fails.

Examples

fn encode_checksum(checksum: Checksum, stream: &mut TcpStream) -> rscache::Result<()> {
    let buffer = checksum.encode()?;
 
    stream.write_all(&buffer)?;
    Ok(())
}

Trait Implementations

impl Clone for Checksum

fn clone(&self) -> Checksum

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Checksum

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Checksum

fn default() -> Checksum

Returns the "default value" for a type.