serversocket

Why aren't ServerSocket connections rejected when backlog is full?

末鹿安然 提交于 2021-02-16 19:09:21
问题 Disinterested curiosity... In Java I listen on a socket, with backlog of 1: ServerSocket ss = new ServerSocket(4000, 1); In shells I run netcat localhost 4000 many times - 5 so far. The connections are never rejected. Every instance of netcat sits and waits until my ServerSocket is destroyed. Backlog length is 1 - that means it should only let one incoming connection queue up, and then reject, does it not? ((I don't know if the queue includes the first one - not important right now.)) I know

Why aren't ServerSocket connections rejected when backlog is full?

℡╲_俬逩灬. 提交于 2021-02-16 19:04:31
问题 Disinterested curiosity... In Java I listen on a socket, with backlog of 1: ServerSocket ss = new ServerSocket(4000, 1); In shells I run netcat localhost 4000 many times - 5 so far. The connections are never rejected. Every instance of netcat sits and waits until my ServerSocket is destroyed. Backlog length is 1 - that means it should only let one incoming connection queue up, and then reject, does it not? ((I don't know if the queue includes the first one - not important right now.)) I know

run pm2 logs error SyntaxError: Unexpected token

别等时光非礼了梦想. 提交于 2021-02-11 15:49:54
问题 I want to see logs of my project Steps : I clone a socket app. Then I run npm install pm2 -g to install pm2 I run pm2 start It works. It display a table of my socket app But if I run pm2 logs to see logs, there exist error like this : 1|mycompany | C:\PROGRAM FILES\NODEJS\NPM.CMD:1 1|mycompany | (function (exports, require, module, __filename, __dirname) { :: Created by npm, please don't edit manually. 1|mycompany | ^ 1|mycompany | 1|mycompany | SyntaxError: Unexpected token : 1|mycompany |

How to create a working TCP Server socket in spring boot and how to handle the incoming message?

佐手、 提交于 2021-02-11 14:14:24
问题 I have tried to implement a TCP server socket with spring integration in an allready existing spring boot application, but I am facing a problem and this problem drives me crazy... The client is sending a message (a byte array) to the server and timesout. That's it. I am not receiving any exceptions from the server. It seems I have provided the wrong port or somthing but after checking the port, I am sure it is the right one. This is my annotation based configuration class: import home.brew

how to send incoming messages from socket client to GUI (pyqt5)

喜夏-厌秋 提交于 2021-02-11 13:59:56
问题 I am trying to make a chat application using socket library. I have three files server.py , client.py and gui.py listening process for client and server are provided by infinite loops. because of that server.py runs in another terminal window. but client and gui are running in one terminal window. the problem is when I call functions containing infinite loop it stuck there and the rest of code won't run. I even tried using multiprocessing , threading.Thread , threading.Timer , QThread and

Java client/server sockets

喜你入骨 提交于 2021-02-10 05:49:09
问题 I'm starting off with java sockets and have strange [lack of] output. Here's my source for the socket methods: Client source code: public void loginToServer(String host, String usnm ) { try { Socket testClient = new Socket(host,1042); System.out.println ("Connected to host at " + host); logString = ("CONNECTED: " + host); outGoing = new PrintWriter(testClient.getOutputStream(), true); outGoing.print("Hello from " + testClient.getLocalSocketAddress()); InputStream inFromServer = testClient

How to connect client and server with the help of ip address which are connected to internet through different wifi?

一个人想着一个人 提交于 2021-02-08 10:14:54
问题 I am using a laptop as my server and a mobile device as my client. I need to send messages between them. I am able to do that by using the local ip address of the laptop and connecting them both to the same wifi network. But how I do use the ip address if I need to send messages though they are connected to different internet through different wifi networks. This is the code in client: client = new Socket("192.168.0.103", 4444); //local ip address of server This is the code in server:

Unable to read all bytes using InputStream read API?

拈花ヽ惹草 提交于 2021-02-05 11:34:31
问题 I am having problem reading image bytes in java socket. My iOS client is sending an image here, and it needs to read the total bytes and store that as image on the server end. It works very fine, when i tested through iOS simulator . Because, If I test in simulator, it sends the image upto 46,577 bytes . It reads all very quickly and properly. If I test the same code sending image from an iPhone device, its also sending around " 45, 301 bytes ", but socket code is able to read only some " 21,

My socket.io server start disconnecting clients randomly (for a “ping timeout” reason) when many clients are connected

Deadly 提交于 2021-02-05 09:28:56
问题 I'm building a website, where my client communicates with the server over web sockets. I'm using nodejs on the backend and hence, the famous socket.io library for web sockets communication. The Problem Everything works fine with 1 to ~ 40 clients, after that the server starts disconnecting clients randomly. at the start I thought it is a scaling problem, maybe memory or something like that. However, after an extensive debugging session, I noticed that the reason for disconnection is ping

My socket.io server start disconnecting clients randomly (for a “ping timeout” reason) when many clients are connected

拟墨画扇 提交于 2021-02-05 09:28:05
问题 I'm building a website, where my client communicates with the server over web sockets. I'm using nodejs on the backend and hence, the famous socket.io library for web sockets communication. The Problem Everything works fine with 1 to ~ 40 clients, after that the server starts disconnecting clients randomly. at the start I thought it is a scaling problem, maybe memory or something like that. However, after an extensive debugging session, I noticed that the reason for disconnection is ping