A good example of what I want is a chat system, where I send a message to someone and he can instantly see my message and vice versa. So I want the best way to track if in the database there is a new answer for me if yes then show it with AJAX. Example Websites: Twitter Friend Feed ...
Hello, I was wondering if its possible with Google Analytics to send real-time HTTP notifications to say PHP when a user visits my website. If not, I am curious about any real-time notifications that Google Analytics can send to me when a user visits my site. Thanks! EDIT::Just came across Piwik and it says that it is realtime... does ...
I'm looking to build some data aggregation stuff in C#, and I'd like something akin to a real-time pivot table, or some sort of continuously updating SQL query, with support for select, sum, average, first, where, and group-by (where first is in the LINQ sense of "give me the first value"). For example, I might have a some sort of table...
Theoretically speaking, is such a thing possible? I know that Google App Engine can't make socket connections, so I figured using XMPP to send messages to the clients would work. Is XMPP on Google App engine low-latency enough to work for a realtime game? I was looking into multiplayer game servers like Smartfox and the like, but I fi...
Here's a situation: I own a nokia mobile device. Quite often, I receive calls from unknown local/national numbers. Now, I would like to take those calls that are from unknown national numbers coz they could be important and I would not like to take calls from local numbers. I would like to write an application which displays " calling" ...
Ok everyone, I have an excellent challenge for you. Here is the format of my data : ID-1 COL-11 COL-12 ... COL-1P ... ID-N COL-N1 COL-N2 ... COL-NP ID is my primary key and index. I just use ID to query my database. The datamodel is very simple. My problem is as follow: I have 64Go+ of data as defined above and in a real-time applic...
Hi everybody, Im going to create an applicaition for i-phone as a multi-user ineractive drawing. what i mean is some thing like YM functionality that 2 or mutiple user can draw at the same time together and. do you have any idea or clue for me to how to start? I have some methods in my mind , like making an webview and my drawing pad b...
Hi everyone, I am new to this post as well as to python GUI programming.I want to make a realtime graphical GUI in wxpython.My requirement is that i have to catch signals from a device and i have to display the data in graphical as well as in textual form.The system should be accurate and be specific with the time constraints.Please can...
I need to design a windows application that will reside within an organization's intranet. The application will be deployed on a user's machine and the user will be generating output within an XML file that has a predefined schema. This XML will be written out to a networked folder that will be accessible by other users. These files are ...
Hi, I want to show a car's path in a window in real time, how to do that, and what classes I have to use. Is there anything like drawing area, in Qt. Any Help will be appreciated. ...
Hello, I try to call a function every 1 ms. The problem is, I like to do this with windows. So I tried the multimediatimer API. Multimediatimer API Source idTimer = timeSetEvent( 1, 0, TimerProc, 0, TIME_PERIODIC|TIME_CALLBACK_FUNCTION ); My result was that most of the time the 1 ms was ok, but someti...
How would services like yammer be using xmpp? does xmpp cross paths with a queue? i.e. could one use rabbitmp instead of xmpp or are they completely different things? ...
I am working with a large amount of time series. These time series are basically network measurements coming every 10 minutes, and some of them are periodic (i.e. the bandwidth), while some other aren't (i.e. the amount of routing traffic). I would like a simple algorithm for doing an online "outlier detection". Basically, I want to kee...
I'm writing an application which will display the current image seen by a camera and it needs to update the shown image in real time, or close to it. Essentially, I have a camera with which I can capture images and I need to capture one every, say, 1 second and display that image to the screen. Currently, my application has an Image co...
Are there any open source applications (or open source code) to implement realtime chat on a webpage like basecamp does? ...
I have been programming Rails and Lift for a while. Rails, said, a joy to work on. But Lift performance is too awesome to be ignored. However, I find building stuff inside Lift is way slower compare to rails. For example, whenever a change in Lift webapp is made, I need to request maven to recompile/retest the whole webapp (which is a re...
Hey guys Im designing an RTOS which uses a priority based preemptive scheduler. What would the PCB contain? Ive only been able to come up with these items 1)PID 2)Priority 3)Program counter 4)Status registers 5)Some flags Should I also include a deadline?Or any other fields ...
I would like to be able to prioritize the outgoing data/messages from a WCF service. Here's the basic scenario: Client requests from server a data stream. The data stream is live, large, and potentially unending (equipment monitoring data). We'll call this HighPriorityDataStream. Client requests additional data. We'll call this LowPri...
In my game, I would like to spawn N items, not necessarily at the same time. Some of the items are dependent on what was spawned before (Markov chain-esque), so the probability of spawning two rocket launchers in a row is low, but there's a reasonable probability of spawning a rocket launcher followed by rockets. What would be the most e...
I'd want to hear various opinions how to safely use c++ in mission critical realtime applications. More precisely, it is probably possible to create some macros/templates/class library for safe data manipulation (sealing for overflows, zerodivides produce infinity values or division is possible only for special "nonzero" data types), a...