making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. CONTENTS 1Tornado Documentation, Release 6.5.1 2 CONTENTSCHAPTER ONE QUICK LINKS making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. Tornado can be roughly divided into three major components: • A web framework (including 1.2 Asynchronous and non-Blocking I/O Real-time web features require a long-lived mostly-idle connection per user. In a traditional synchronous web server, this implies devoting one thread to each user

WebSockets [https://en.wikipedia.org/wiki/WebSocket], and other applications that require a long-lived connection to each user. Quick links Current version: 6.5.1 (download from PyPI [https://pypi.python.org/pypi/tornado] httpclient — Asynchronous HTTP client tornado.httputil — Manipulate HTTP headers and URLs tornado.http1connection – HTTP/1.x client/server implementation Asynchronous networking tornado.ioloop — Main event loop non-blocking socketstornado.netutil — Miscellaneous network utilities tornado.tcpclient — IOStream connection factory tornado.tcpserver — Basic IOStream-based TCP server Coroutines and concurrency tornado

hello 现在，在 src/main.rs 输入示例 21-1 中的代码，作为一个开始。这段代码会在地址 127.0.0.1:7878 上监听传入的 TCP 流。当获取到传入的流，它会打印出 Connection established!： 文件名：src/main.rs use std::net::TcpListener; fn main() { let listener = TcpListener::bind("127 for stream in listener.incoming() { let stream = stream.unwrap(); println!("Connection established!"); } } 示例 21-1: 监听传入的流并在接收到流时打印信息 TcpListener 用于监听 TCP 连接。我们选择监听本地地址 127.0.0 TcpListener 的 incoming 方法返回一个迭代器，它提供了一系列的流（更准确的说是 TcpStream 类型的流）。流（stream）代表一个客户端和服务端之间打开的连接。连接 （connection）代表客户端连接服务端、服务端生成响应以及服务端关闭连接的整个请求 / 响 应过程。为此，我们会从 TcpStream 读取客户端发送了什么并接着向流发送响应以向客户端发 回数据。总体来说，这个

in two ways:CHAPTER 7. STRINGS 59 the obvious connection is that regular expressions are used to find regular patterns in strings; the other connection is that regular expressions are themselves input sockets is subtle and has to do with the accept and connect methods. The accept method retrieves a connection to the client that is connecting on the server we just created, while the connect function connects you should be able to pass the same arguments to connect as you did to listen to establish the connection. So let's try that out (after having created the server above): julia> connect(2000) TCPSocket(open

in two ways:CHAPTER 7. STRINGS 59 the obvious connection is that regular expressions are used to find regular patterns in strings; the other connection is that regular expressions are themselves input sockets is subtle and has to do with the accept and connect methods. The accept method retrieves a connection to the client that is connecting on the server we just created, while the connect function connects you should be able to pass the same arguments to connect as you did to listen to establish the connection. So let's try that out (after having created the server above): julia> connect(2000) TCPSocket(open

are related to strings in two ways: the obvious connection is that regular expressions are used to find regular patterns in strings; the other connection is that regular expressions are themselves input sockets is subtle and has to do with the accept and connect methods. The accept method retrieves a connection to the client that is connecting on the server we just created, while the connect function connects you should be able to pass the same arguments to connect as you did to listen to establish the connection. So let's try that out (after having created the server above): julia> connect(2000) TCPSocket(open

are related to strings in two ways: the obvious connection is that regular expressions are used to find regular patterns in strings; the other connection is that regular expressions are themselves input sockets is subtle and has to do with the accept and connect methods. The accept method retrieves a connection to the client that is connecting on the server we just created, while the connect function connects you should be able to pass the same arguments to connect as you did to listen to establish the connection. So let's try that out (after having created the server above): julia> connect(2000) TCPSocket(open

are related to strings in two ways: the obvious connection is that regular expressions are used to find regular patterns in strings; the other connection is that regular expressions are themselves input sockets is subtle and has to do with the accept and connect methods. The accept method retrieves a connection to the client that is connecting on the server we just created, while the connect function connects you should be able to pass the same arguments to connect as you did to listen to establish the connection. So let's try that out (after having created the server above): julia> connect(2000) TCPSocket(open

are related to strings in two ways: the obvious connection is that regular expressions are used to find regular patterns in strings; the other connection is that regular expressions are themselves input sockets is subtle and has to do with the accept and connect methods. The accept method retrieves a connection to the client that is connecting on the server we just created, while the connect function connects you should be able to pass the same arguments to connect as you did to listen to establish the connection. So let's try that out (after having created the server above): julia> connect(2000) TCPSocket(open

are related to strings in two ways: the obvious connection is that regular expressions are used to find regular patterns in strings; the other connection is that regular expressions are themselves input sockets is subtle and has to do with the accept and connect methods. The accept method retrieves a connection to the client that is connecting on the server we just created, while the connect function connects you should be able to pass the same arguments to connect as you did to listen to establish the connection. So let's try that out (after having created the server above): julia> connect(2000) TCPSocket(open