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Questions tagged [sockets]

365体育足球滚球比分 An endpoint of a bi-directional inter-process communication flow. This often refers to a process flow over a network connection, but by no means is limited to such. Not to be confused with WebSocket (a protocol) or other abstractions (e.g. socket.io).

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Database on a different machine

1- If I run a Python script on a physical machine and collect some text-based data to a database (such as SQLite), can I access that file on another physical machine at certain times? 2- If first ...
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How to deal with OutOfMemoryError in Android

Server sends images in the form of byte arrays to my android application. In a loop, Each received byte array is converted to bitmap to be displayed in a ImageView. Problem is that my android device(...
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Is it possible to send and receive udp broadcast packets via port number like 680 on Android?

My client want to use port 680 on Android to send and receive broadcast packets to discover devices and transfer data. I tried to bind the port to my udp broadcast listener but get an error "java.net....
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How to implement many to many message passing among remote machines

P.s. sorry if this question is duplicate or irrelevant. I tried searching for it online but couldn't turn up any answers. Background: So I'm trying to implement Raft and for that I need to be able to ...
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Heroku: HTTP 503 “Service Unavailable” error

I am running into CORS problem even though the application works fine on localhost, and even though I am using npm CORS package (I have tried other methods too). import path from 'path'; import http ...
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POCO websocket single threaded multiple connections client

I have a c++/linux client that needs to connect to huge amount of websocket servers. It seems that every time i create a new connection like this: HTTPResponse response; Poco::URI uri(...
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Socketio polling even after disconnecting socket

I am using socket.io library for socket communication in my iOS project. When the socket is connected I can view polling requests in charles proxy. But even when I have disconnected the socket it is ...
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Bluetooth socket between Raspberry Pi and android device

I create android application for customer which use Android phone BT socket to communicate with RaspberryPi HW. The client says: for communication use a lower level implementation of the sockets, here ...
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Bandwidth share (master => workers)

I am working on transfer protocol ,I have a master and many workers ,so my need is how to divide bandwidth of master for workers . Each worker have a number of data to send , as a first solution I ...
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Testing a Java Server-Client application using JUnit (or trying)

I finished a Server-Client application in Java and I need to write multiple tests for different situations. For example I have a client and it sends a message and receives one message. Another case I ...
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Socket event handler does not work as expected in Node.js

I have the following ftp session using telnet: $ telnet ftp.fsn.hu 21 Trying 195.228.252.133... Connected to ftp.fsn.hu. Escape character is '^]'. 220 ftp.fsn.hu FTP server (Version 6.00LS) ready. ...
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Better way to communicate between TCP Client and Server

I have a commandsystem to communicate between my TCP Server and Client (Java). I can send specific commands to my Client, if the Client received a command, it will execute something. Basically, ...
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Python localhost socket terminated by Windows using pytest-qt

I'm trying to test a PyQt application using pytest and pytest-qt. The setup is this: the SERVER (the tested application) is running a TCP server for remote control. The MainWindow is handed to the ...
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A separate auto-reconnect thread for TCP/IP sockets (C sockets API)

I have two threads. Thread 1 is just a select() loop monitoring fdset's of fd's. These fd's are those for both local servers and local clients. Incoming connections to the servers are handled by ...
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1answer
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Socket.io disconnect not working from componentwillunmount

I am trying to create a real time chat using socket.io. However, I am having trouble disconnecting my chat application. Front end constructor(props){ super(props); this.state={ ...

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