String、Arc<String>、Cow、&'static str 这些都可以直接 into 到 FastStr;Bytes、BytesMut、Vec<u8> 可以直接用 unsafe 方式转到 FastStr ,这些方法都可以避免数据拷贝。如果是普通的 &str,那么可以用 FastStr::new(s) 创建出 FastStr(会有一次内存分配和拷
use tokio::{runtime::Runtime, sync::mpsc}; use bytes::{Bytes, BytesMut}; use std::sync::{Arc, Mutex}; fn main() -> Result<(), Box<dyn std::error::Error>> { // 初始化 Tokio 多线程运行时 let rt = Runtime::new()?; // 零拷贝数据传递 let original_data = Bytes::from_st...
let mut buf = BytesMut::with_capacity(64); buf.put(&b"hello server 1"[..]); conn.send_raw(b"hello server 1".to_vec()).await.unwrap(); let resp_bytes = conn.next().await.unwrap(); println!("[client] [4] receive: {:?}", resp_bytes); if let Some(recv_bytes) = conn....
fn into_response(self) -> Response { // Use a small initial capacity of 128 bytes like serde_json::to_vec // https://docs.rs/serde_json/1.0.82/src/serde_json/ser.rs.html#2189 let mut buf = BytesMut::with_capacity(128).writer(); match serde_json::to_writer(&mut buf, &se...
use std::io::Write; fn main() { let mut file = std::fs::File::create("data.txt").expect("create failed"); file.write_all("aaa".as_bytes()).expect("write failed"); file.write_all("\nbbb".as_bytes()).expect("write failed"); println!("data written to file" ); } 1. ...
let mut bytes = bytesMut::new(); loop { match self.socket.read(&mut buf) { Async::Ready(0) => return Async::Ready(bytes.to_vec()), Async::Ready(n) => bytes.put(buf[0..n]), Async::NotReady => return Async::NotReady, ...
fn encode(&mut self, line: String, buf: &mut BytesMut) -> Result<(), io::Error>{//It's important to reserve the amount of space needed. The `bytes` API//does not grow the buffers implicitly.//Reserve the length of the string + 1 for the '\n'.buf.reserve(line.len() +1);...
TC classifier(译:TC分类器) – 能被附加到 qdisc (“queuing discipline” in Linux networking) 的出口和入口,用于检查网络接口和执行某些操作比如 accepting(接受), dropping(释放), redirecting(重定向), sending them to the queue again(再次发送到队列)等。
ValuesMut<'a>: ValuesMut是BTreeMap的可变值迭代器结构体,类似于Values,但它允许修改BTreeMap中的值。 IntoKeys: IntoKeys是BTreeMap的所有权键迭代器结构体,它拥有BTreeMap的所有权,并允许按键的顺序进行遍历。 IntoValues: IntoValues是BTreeMap的所有权值迭代器结构体,它拥有BTreeMap的所有权,并允许按键的...
Consider adding a test case similar to read_str_exceeds_limit but for protocol decoding: #[test] fn test_protocol_decode_exceeds_limit() { let mut buffer = BytesMut::new(); // Setup buffer with ext_fields_length > header_len let result = RocketMQSerializable::rocket_mq_protocol_decode(...