channel

问题 I am using Spring Integration to poll a directory for a File, process this file in a service class, write this file to an output directory and then delete the original file. I have the following XML configuration: <int-file:inbound-channel-adapter id="filesInChannel" directory="file:${java.io.tmpdir}/input" auto-create-directory="true" > <int:poller id="poller" fixed-delay="1000" /> </int-file:inbound-channel-adapter> <int:service-activator id="servicActivator" input-channel="filesInChannel"

问题 I'm designing an application that using PubNub for real-time message. I'm facing with an issue about 1-to-1 chatting. This is my scenario : I have an user A, so if A wants to receive all messages from another, A must subscribe a public channel, called PUB channel. User B know the public channel of A, so B or another can send messsage to this channel. Right now that fine. BUT when i open the app, i want to display the list of users that i've messaged or offline messages that a NEW person sent

问题 I've been trying to get my head around action cable for what seems like months. Please help. I have a "Connection" - I can't set the identified_by :current_user because this endpoint also needs to be consumed by an external API that uses WebSockets. Can't use browser cookies to authenticate the API endpoint. Files & Support Connection: /app/channels/application_cable/connection.rb module ApplicationCable class Connection < ActionCable::Connection::Base end end Channel: /app/channels

问题 I need to generate 2 sine wave tones with different frequency and play them separately into right and left channel in stereo mode on Android. This is my code: int sample; double sampleRate; double duration; double time; double f1; double f2; double amplitude1; double amplitude2; double sineWave1; double sineWave2; float[] buffer1; float[] buffer2; byte[] byteBuffer1; byte[] byteBuffer2; byte[] byteBufferFinal; int bufferIndex; short x; short y; AudioTrack audioTrack; @Override public void

问题 I'm implementing the facebook login in my website wich is in the form of mysite.anotherdomain.org . I did all explained in the Documentation of the Javascript SDK but, since I have some problems, I'm wondering if the error comes from the channel url. What should I exactly write for the channel file? Thanks in advance! 回答1: The channel file basically fixes certain cross-domain issues for certain browsers. The following are the three that Facebook has identified: Pages that include code to

问题 I'm working through the examples at tour.golang.org, and I've encountered this code I don't really understand: package main import "fmt" func fibonacci(c, quit chan int) { x, y := 0, 1 for { select { case c <- x: // case: send x to channel c? x, y = y, x+y case <-quit: // case: receive from channel quit? fmt.Println("quit") return } } } func main() { c := make(chan int) quit := make(chan int) go func() { // when does this get called? for i := 0; i < 10; i++ { fmt.Println(<-c) } quit <- 0 }()

问题 One of Go's slogans is Do not communicate by sharing memory; instead, share memory by communicating. I am wondering whether Go allows two different Go-compiled binaries running on the same machine to communicate with one another (i.e. client-server), and how fast that would be in comparison to boost::interprocess in C++? All the examples I've seen so far only illustrate communication between same-program routines. A simple Go example (with separate client and sever code) would be much

问题 I am looking to returning the video-thumbnail of the latest uploaded video from my channel, and display it on my website. Anyone know how I can do a minimal connection trough api and get only the thumbnail? Thanks! -Tom REVISED!! Using Cakephp, this is how I did it (thanks dave for suggestions using zend); controller: App::import('Xml'); $channel = 'Blanktv'; $url = 'https://gdata.youtube.com/feeds/api/users/'.$channel.'/uploads?v=2&max-results=1&orderby=published'; $parsed_xml =& new XML(

问题 I've been looking over the Android Wifi direct APIs and I can't seem to find out if it is possible to change the frequency/channel Wifi direct uses to communicate? (channels 1, 6, or 11 for example) Does anybody know if this is possible with the developer API? If not, does anybody know if there is some third party library that could possibly require root access to accomplish this? Thanks in advance for any help you can provide. 回答1: In order to change the channel of the Wifi Direct of your

问题 What does it mean for a ChannelFactory to have a State property? I understand that a created channel can have connection based states. But am confused as to why the ChannelFactory also has such connection states. Does it too connect to the WCF service? 回答1: A ChannelFactory object has a State because it is a CommunicationObject , and all CommunicationObjects in WCF have a State . Of course, that's just begging the question, and not really helpful. The real question boils down to two parts Why