Giordani L. Rust Projects. Write A Redis Clone.... 【POPULAR – BREAKDOWN】

pub async fn run(&self) -> Result<(), Box<dyn std::error::Error>> { loop { let (socket, addr) = self.listener.accept().await?; let store = self.store.clone(); tokio::spawn(async move { if let Err(e) = handle_client(socket, store).await { eprintln!("Error handling client {}: :?", addr, e); } }); } } }

match self.buffer[0] as char { '*' => self.parse_array(), '+' => self.parse_simple_string(), '-' => self.parse_error(), ':' => self.parse_integer(), '$' => self.parse_bulk_string(), _ => Err(format!("Invalid RESP type: {}", self.buffer[0] as char)), } }

fn handle_del(store: &Store, args: &[RespValue]) -> RespValue let mut count = 0; for arg in args if let RespValue::BulkString(Some(key_bytes)) = arg let key = String::from_utf8_lossy(key_bytes); if store.del(&key) count += 1; Giordani L. Rust Projects. Write a Redis Clone....

fn parse_one_from_offset(&mut self, offset: usize) -> Result<Option<(RespValue, usize)>, String> if offset >= self.buffer.len() return Ok(None);

if store.expire(&key, seconds) RespValue::Integer(1) else RespValue::Integer(0) pub async fn run(&self) -&gt

fn parse_bulk_string(&mut self) -> Result<Option<RespValue>, String> let (len_str, bytes_read) = self.read_until_crlf(1)?; let len: i64 = len_str.parse().map_err(

let original_buffer = self.buffer.clone(); let temp_buffer = &mut self.buffer[offset..].to_vec(); let mut temp_parser = RespParser buffer: BytesMut::from(temp_buffer.as_slice()), ; match temp_parser.parse_one()? Some(value) => let consumed = original_buffer.len() - temp_parser.buffer.len() - offset; Ok(Some((value, consumed))) None => Ok(None), { loop { let (socket

impl RespValue { pub fn serialize(&self) -> Vec<u8> { match self { RespValue::SimpleString(s) => format!("+{}\r\n", s).into_bytes(), RespValue::Error(e) => format!("-{}\r\n", e).into_bytes(), RespValue::Integer(i) => format!(":{}\r\n", i).into_bytes(), RespValue::BulkString(Some(data)) => { let mut out = format!("${}\r\n", data.len()).into_bytes(); out.extend_from_slice(data); out.extend_from_slice(b"\r\n"); out } RespValue::BulkString(None) => "$-1\r\n".into_bytes(), RespValue::Array(arr) => { let mut out = format!("*{}\r\n", arr.len()).into_bytes(); for item in arr out.extend(item.serialize());

pub fn set(&self, key: String, value: Vec<u8>, ttl_ms: Option<u64>) ttl