An endpoint of a bidirectional inter-process communication flow. This often refers to a process flow over a network connection, but by no means is limited to such.
0
votes
0answers
14 views
Common Server Client Code [on hold]
I have created a common c file for a basic client server. It works fine on my linux setup. Please provide your comments/suggestions on how the code can be optimized/enhanced.
After compiling we need ...
5
votes
1answer
141 views
Finding local C# servers on a Java client using UDP and reactive extensions
This program uses UDP broadcast to find app servers on the local network. When a server receives a client broadcast, it sends a port (integer) to the client which will later be used to create a TCP ...
4
votes
1answer
44 views
Java NIO server Selector loop
I have a server that uses Java NIO in non-blocking mode. Right now I'm using a single thread for the selector, and four worker threads to process the bytes after ...
3
votes
1answer
62 views
UDP Server Design and Performance
What I'm doing
I am writing a server to work as my games backend. The server is being written in C# using UDP as the protocol, while the game is in C++. The biggest thing I've been focusing on was ...
2
votes
0answers
45 views
Android app that listens for commands over a socket
I've just begun programming Java and I'm working on the following code that deals with socket-based communications. Basically it connects to a client on port 8888:
Gist of code
...
4
votes
0answers
70 views
A full-duplex connection to an IRC server
This connection class can be used, through composition, to make IRC clients for different kinds of IRC services.
...
3
votes
1answer
37 views
GPSD socket connection and decoding JSON into Python dictionaries
GPS3 is a python 2.7-3.5 interface to GPSD.
I've stripped back everything to two classes.
...
12
votes
3answers
4k views
Replacing Skype, reinventing the chat client
I'm creating a chat client and chat server after a several month programming hiatus. The goal is to make one with features I want but it's also a learning project. Although it's mostly because I'm ...
4
votes
3answers
64 views
Python HTTP Server
This is one of my first times writing Python. I'm most curious about style and whether while 1: x,y = socket.accept() is an acceptable way to wait for new ...
2
votes
1answer
27 views
Testing a socket-based application
Summary: How can I best write tests that override socket-based communication for a library, capturing what is sent over the socket, and simulating responses based on what is sent?
Details
I'm adding ...
4
votes
1answer
82 views
Loop through List multi-threading to ping hostnames
I am new to Multi-threading. I have had a go at writing some code that loops through an ArrayList, gets a hostname and then pings the hostname. If the hostname is ...
2
votes
1answer
98 views
Reading and Writing Messages from a Socket
This is code from my android client which communicates over wifi to a small server program (not coded in java). This is my first time playing around with sockets, so I'm sure there are lots of little ...
1
vote
2answers
40 views
Program to let any user run a command
I have a script which can only be run by one specific user on a system. I need to let all users on the system have access to run that script and see the output. But there must never be more than one ...
1
vote
1answer
39 views
Server client for distributed system
This is the code I am using for a distributed system. The code will be used to allow the server to send parts of a (really big) document which will be processed by the connected clients. Please tell ...
8
votes
2answers
168 views
Command line IRC client
I made this IRC client ages ago in Python, and thought I'd revisit it for Python 3.5 (I'd like to play with asyncio). Before I start, I'd like to have an overall design review about this.
Known ...
1
vote
1answer
19 views
Socket.ReadPacketASync
I'm working with TCP Sockets and I've build a simple packet struct that turns it into a datagram protocol. I've created a class which returns "promise" Tasks for Packets. Packets are very simple, they ...
1
vote
2answers
33 views
Find available ports on localhost
I'm writing code to find the available ports on 127.0.0.1. I'd like it to be faster, but it's functional now.
...
7
votes
1answer
77 views
Server-side of a chat application
I have written a server-side and the client-side of a chat application. I would like to improve it and I am unsure about my server construct and have absolutely no idea if there is a better way to do ...
0
votes
1answer
41 views
Server / client desynchronisation of messages [closed]
I'm trying to build a game where a client gets to play against a server in a game of Tic Tac Toe. I've built the game and followed a somehow structured design of how the game is supposed to happen, ...
1
vote
0answers
40 views
ByteBuffer Performance with Java NIO2 AsynchronousChannelGroup.withFixedThreadPool
I have a socket which will be receiving more than 100 TPS, so I need the reading to be as fast as possible. In this socket, I read the info I need to build a String and check if it matches a regex. I ...
2
votes
2answers
122 views
Simple TCP client-server solution
I have implemented a simple client-server solution using Java sockets and useful classes from java.util.concurrent.
The communication protocol is rather simple:
...
2
votes
0answers
45 views
N Processing connect to a single process: Socket Programming
The idea of my program is to use pthreads, semaphores, posix shared
memory, and sockets to create an environment where N processes
(that we will refer to as the children) can connect to a single
...
1
vote
1answer
100 views
ISO8583 encoding data fields
I just want to confirm that my ISO8583 format is correct.
Example:
For the data field 35, the length of the data is 36, so I put 36 before the 4842. Then all the data is inserted in a string (...
-1
votes
1answer
67 views
Server listening for program sockets
Essentially I have a server that will be listening for sockets in other programs seeking a connection:
...
1
vote
1answer
32 views
Handling incoming socket data
Below I have some code that I use to handle incoming socket data, this is not full thing but its the part I am worried about, is there any way to improve this?
...
3
votes
1answer
62 views
1
vote
1answer
227 views
Python TCP echo server
The below code is a simple TCP echo server. The folks using it claim "it is going down every now and again". Any thoughts on how this could be improved would be really appreciated, particularly if ...
2
votes
1answer
66 views
node.js game CPU usage
My friend and I are making a node.js game, and we have been testing CPU. After profiling, it was determined that this process called zlib is sucking most of the CPU/RAM.
3 clients connected to a game ...
2
votes
1answer
58 views
POP3 message downloader using state machine processor
This simple program uses a socket class I wrote, class socket, to retrieve a users pop3 emails and print to stdout. I would like feedback on the socket class and the code to download the pop3 emails. ...
2
votes
1answer
120 views
TCP server with user accounts, connection threading, and groups/permissions
This is a TCP server I am currently working on. It is accessed through telnet (I know it isn't secure, its just a project for uni). The server is programmed in Python 3.
I am currently trying to ...
4
votes
1answer
121 views
Winsock GET and POST Functions
This works fine so far, but I am looking for some advice as to how to better write this. My goal is to learn and incorporate current/latest C++ practices, and become a better programmer overall.
...
5
votes
2answers
86 views
Scanning for open ports
I made what started out as a web browser but now is a scanner for open ports. I wanted to know if you think this is a realistic or a unreliable tool for port testing. I found some open ports on my ...
5
votes
1answer
2k views
Multithreaded client server socket
I have created this library mostly for a learning experience with sockets and threading.
For this review, focus on socket/threading. Let me know if I properly implemented both. If you want to comment ...
14
votes
1answer
298 views
TCP Socket Wrapper
I'm trying to build a simple server software for training purpose, most likely a IRC server, but I'm not there yet.
I'm currently implementing a TCP socket class, to ease the use of the C socket API. ...
1
vote
1answer
625 views
Non-blocking Unix domain socket
I've developed quickly two kinds of socket use: the first with blocking mode and the second with non-blocking mode. The sockets are Unix domain sockets. My problem is that the kernel consume a huge ...
4
votes
0answers
89 views
Simple Echo Server
I wrote this echo server in Haskell as a way to introduced myself to programming with sockets in Haskell and generally practice Haskell. The echo server has a simple purpose: accept connections from a ...
3
votes
2answers
109 views
Assessment of client-server program source code
Can you assess source code of my client-server program?
I would like to get an advice about design, code security etc.
Thank you very much.
The program does the following:
Show files in ...
6
votes
2answers
306 views
Multithreaded Network Server
I would like the following code reviewed:
I am trying to create a local server which listens indefinitely and
provides the latest information. The server runs another while loop
which fetches ...
11
votes
2answers
97 views
Raw Text TCP Client v3
After studying and considering the reviews for this code, I began working on the code, and came up with this. It has much better error and disconnect detection, and it also resolves addresses:
...
14
votes
5answers
823 views
Raw Text TCP Client
Yesterday I posted a request for a code review. After reviewing the code and the reviews, and after some sleep, I decided I can do better. In fact I logged on with the intent of deleting the question ...
10
votes
4answers
107 views
Impromptu TCP sender/receiver
Every once in a while I need to get some random computer thing done; so I write something to do it for me. This is one of those. It needed to be able to send text to, and receive text from, a server - ...
7
votes
1answer
145 views
Python Socket Receiver
I put this together and am having some doubts to the number of connections I can make. I also doubt if I can brute force the server to serve up connections and then hang.
Please take a look and tell ...
4
votes
3answers
92 views
Fetching filesystem directory listings on a server
I developed a server which takes a directory name then lists files in it and sends this list to a client. And I want that server to work with Telnet.
It works but I have some questions on how I can ...
2
votes
1answer
125 views
Using C++11 move semantics to implement state pattern
I'm implementing a C++ layer on top of the sockets api of the OS (i.e. man 7 socket)1. Tcp sockets go through various states. Using the RAII principle leads to distinguishing the states: ...
6
votes
1answer
338 views
Java NIO Server Scaling
I wrote a Java NIO Echo Server and want to maximize the number of connections to the server.
The problem is that when I try to connect more than 10k clients the clients get their connections refused:
...
7
votes
1answer
615 views
C Socket API Call with Swift
I have a small function in Objective-C which uses the C Socket API to check if the device has an active internet connection:
...
-3
votes
1answer
198 views
7
votes
2answers
730 views
TCP socket retry mechanism
I am writing a C++ client application which will send some data to server and wait for its response. Now the protocol is to wait for a specific timeout and then retry for specific times. If all goes ...
1
vote
1answer
686 views
Receiving all data comes from web in system.net.socket
I listen on a port via multi thread async socket. That port receives requests over XDomainRequest. I received the complete data each time till now but I don't trust this code because it may not work ...
1
vote
1answer
153 views
Erlang parallel server using sockets
The task was to build a simple parallel server in erlang that prints what it receives through a socket and alerts when the socket is closed.
...
