real-time

问题 I was chatting frequently in Facebook and as I love to code more and more so I tried to create a Chat Script! Here it is ::: http://wooflux.co.cc/ChatSystem.1.1/ChatSystem.1.1/ You try it out. But it is just a beta version so there are some bugs in it. And one of the biggest bug is that it requires a good internet speed to get real time updates. But when I push my net's speed to it's maximum and then chat with one of my friends in Facebook, it work in real time! I was wondering how did they

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . So I have an array of say 25 samples and I would want to be able to note the trends of whether it's decreasing n or increasing from those 25 sample time interval(basically 25 samples array is my buffer that is being filled by every say 1 ms). Note that it is general trend that I am looking for, not the

问题 I have an application where users can follow other users. I want to have a real-time update system, display the total count of followers a user has. I've just started playing around with Firebase and Pusher , but I don't understand one thing - will each user have their own 'channel'? How would I handle such thing as a follower counter update? I followed the tutorial and saw that push method can create lists, so one solution I can see is having a list of all the users, each user being an

问题 I would like to schedule a series of events such that to about the nearest 5ms, the starting time of event N is t0 + dt*N, where t0 is some arbitrary time after the process starts. If the events were output to a terminal, they would occur regularly without pauses or speedups. If they were noises, it would produce a regular rhythm. This is my first attempt. #include <stdio.h> #include <time.h> #include <math.h> void fsleep(double t) { time_t sec = floor(t); long nsec = 1e9*(t - sec); struct

问题 Is there a public XMPP server available either free or commercial with good quality? Or we need to set it up ourselves? 回答1: You can use a publicly available XMPP server for free during your test/development phases. http://xmpp.net will give you a list of freely available Jabber servers. However, once you have your application running into production and specially at some scale, it's not recommended to use a 3rd party freely available server for your application. Alternately, if all you care

问题 I am considering making a chess app in Rails where moves need to be pushed from the server to the client browser asynchronously (ideally with websockets). However, from what little research I've done it appears that Heroku does not support websockets. But there is an alternative in using socket.io configured to use long polling instead of websockets. Is long polling insufficient to achieve latency requirements for something like a 5 minute blitz game of chess? 回答1: The Heroku Cedar stack

问题 I am considering making a chess app in Rails where moves need to be pushed from the server to the client browser asynchronously (ideally with websockets). However, from what little research I've done it appears that Heroku does not support websockets. But there is an alternative in using socket.io configured to use long polling instead of websockets. Is long polling insufficient to achieve latency requirements for something like a 5 minute blitz game of chess? 回答1: The Heroku Cedar stack

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . Are there any open source applications (or open source code) to implement realtime chat on a webpage like basecamp does? 回答1: Openfire is an open source XMPP chat server. We've used that for years and we love it. SParkweb is their open source web based chat client: http://www.igniterealtime.org/projects/sparkweb

问题 I'm trying to figure out how to have a real time data displayed on a webpage through the use of an android app. For example, users are using android app and are scored (answering questions). My webpage will display the scores in order in real-time. Iv come to the conclusion to use Redis, but what exactly do i need for this to function? Do i need a web socket where my web page will communicate with. This socket could be python where it accesses the database and then responds with the scores in

问题 In an attempt to learn Angular & Codeigniter I have expanded the initial new tutorial (from CI). In it's current stage, it automatically displays new posts & removes deleted posts from the page & of course updates model/DB. -- I assume I'm not doing this the most effective way for AngularJS though. Feedback on my code would be helpful for that. -- However, my main concern is how to do differential updates in Angular? When I accomplished this via jQuery, I simply appended a timestamp to my