HTML5 WebSockets and Comet

This topic created in 5704 days ago, the information mentioned may be changed or developed.

=>

http://pusherapp.com/
http://beaconpush.com/
http://www.cometify.org/

Things to be done by. Because @Livid jibs at developing an AJAX framework for V2EX, so I say: Hey, WebSockets!
This is the kinda technology that you have to pay attention to.

WebSockets

Technology

10 replies • 1970-01-01 08:00:00 +08:00

billychow

Sep 30, 2010

显然不行。
http://stackoverflow.com/questions/2256742/can-google-app-engine-be-used-as-a-socket-server

disinfeqt

Sep 30, 2010

@billychow I'm not talking about running "as a" server.

zhaiduo

Sep 30, 2010

http://www.rumpetroll.com/ WebSocket Sperm~

billychow

Sep 30, 2010

我觉得问题根本不是在于是否作为 SERVER，而是 GAE 的限制，你不能创建一个持久的链接，无论是 pull 还是 push...

"For instance, a call to a method that attempts to open a socket or write to a file will raise an exception."
from: http://code.google.com/appengine/docs/whatisgoogleappengine.html

billychow

Sep 30, 2010

刚刚似乎找到了一个可能：Channel API
但是似乎还没有开放，只能申请体验
https://spreadsheets.google.com/a/google.com/viewform?formkey=dGFxQ1A4T1BSYWxNdFlYVFhUcmg2amc6MQ

Livid

MOD

PRO

Sep 30, 2010

I'll study it.

lamengao

Sep 30, 2010

Building real-time web apps with App Engine and the Feed API
http://goo.gl/zrbc

lepture

Sep 30, 2010

@billychow gae blog曾经有一篇提到过Comet，将会在以后提供吧。

billychow

Sep 30, 2010

嗯，Google I/O 上也有讲过，还放了 DEMO。
不过现在还没有开放，非常期待这个功能，因为我目前做的一个应用就是 pull，而由于 gae 的计划任务限制最小间隔时间为 1 分钟，所以实时性不能保障，有些浪费资源。

lamengao

Sep 30, 2010

GAE的roadmap中有对Comet的支持,就是不知道是什么时候了。
http://code.google.com/appengine/docs/roadmap.html