real-time

问题 I'm trying to implement Facebook realtime API. I've added a subscription successfully. (PLease visit url to find out how... What is verify token in Facebook Realtime API ) But I'm not getting any notifications from FB. Whenever a user makes any changes, FB makes a POST call to my callback_url(I checkecd the access logs of my site). But I'm not able to write the data to a file. My CODE IS: from datetime import datetime def fb_notifications(request): handle1=open('/path_to_log_file/smt_logs.log

问题 I have a BackgroundWorker thread that is posting messages, using BeginInvoke on a textbox in the GUI. The method, write_debug_text , that displays text in the textbox uses AppendText and also writes the text to the Console . The appearance is that the BackgroundWorker is writing too fast for the write_debug_text to keep up. I set a breakpoint at write_debug_text and have to wait a long time before it is hit. Many calls to 'BeginInvoke` occur before the breakpoint is hit. I'm looking for a

问题 I have a BackgroundWorker thread that is posting messages, using BeginInvoke on a textbox in the GUI. The method, write_debug_text , that displays text in the textbox uses AppendText and also writes the text to the Console . The appearance is that the BackgroundWorker is writing too fast for the write_debug_text to keep up. I set a breakpoint at write_debug_text and have to wait a long time before it is hit. Many calls to 'BeginInvoke` occur before the breakpoint is hit. I'm looking for a

问题 I have a DSP software which captures the audio playing using the WASAPI api in shared loopback mode. hr = _pAudioClient->Initialize(AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_LOOPBACK, 0, 0, _pFormat, 0); This part works fine, but now I want to be able to detect the number of channels actually playing. In other words how would I be able to detect if the audio playing is in stereo, 5.1, 7.1? The problem is: * Since loopback have to use shared mode there could be multiple sources playing. *

问题 I have a pub/sub model using Node.js to transmit data from one client to another client. Besides, server also records everything received and send to new clients. However, some data corrupted when transfer, and I got error like: Error with socket! { [Error: write EPIPE] code: 'EPIPE', errno: 'EPIPE', syscall: 'write' } Error with socket! { [Error: read ETIMEDOUT] code: 'ETIMEDOUT', errno: 'ETIMEDOUT', syscall: 'read' } I don't know how to properly handle these errors. It looks like client is

问题 Similar to this question, I'd like to limit the execution time of a function--preferably with microsecond accuracy--in C. I imagine that C++ exceptions could be used to achieve a result similar to this Python solution. Though it's not ideal, such an approach is wholly unavailable in plain C. I wonder, then, how might I interrupt the execution of a function after a certain time interval in C on a Posix system? For relatively simple situations a bit of silly business works just fine, but that

问题 Just reading more details on storm and came across it's ability to do fields grouping so for example if you where counting tweets per user and you had two tasks with a fields grouping of user-id the same user-id's would get sent to the same tasks. So task 1 could have the following counts in memory bob: 10 alice: 5 task 2 could have the following counts in memory jill:10 joe: 4 If I added a new machine to the cluster to increase capacity and ran rebalance, what happens to my counts in memory?

问题 I've taken a look at the basic websocket capabilities in Dart, using this simple example: https://github.com/financeCoding/chat-websocket-dart But I was wondering if there's a nice library I could use to build a realtime online game using websockets. I've had experience in this using node.js with socket.io, which worked out quite well. I need to be able to have "rooms", join rooms, leave rooms, broadcast to clients in a room, etc. as well as some nice notion of connection "health",

问题 We have a large high-performance software system which consists of multiple interacting Java processes (not EJBs). Each process can be on the same machine or on a different machine. Certain events are generated in one process, and are then propagated in different ways to other processes for further processing and so on. For benchmarking purposes, we need to create a log of when each event passed through a "checkpoint", eventually combine these logs to obtain a timeline of how each event

问题 I am having trouble deciding on whether to classify my application as 'real time' or 'near real time', or perhaps even something else. The software receives data immediately as it is generated from the source, then based on certain rules, raises an alert when certain conditions are met. It takes the approach of checking the last 30 seconds of data every 30 seconds to see whether the criteria for a rule has been met. Is that real time? What are the thresholds for the definitions of real time