sockets

问题 I'm writing a proxy using .NET and C#. I haven't done much Socket programming, and I am not sure the best way to go about it. What would be the best way to implement this? Should I use Synchronous Sockets, Asynchronous sockets? Please help! It must... Accept Connections from the client on two different ports, and be able to receive data on both ports at the same time. Connect to the server on two different ports, and be able to send data on both ports as the same time. Immediately connect to

问题 I get an error if I want to write on my udp socket like this. According to the docu there shouldn't be a problem. I don't understand why bind() works well in the same way but sendto() fails. udp_port = 14550 udp_server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) udp_server.bind(('127.0.0.1', udp_port)) udp_clients = {} Error: udp_server.sendto('', ('192.0.0.1', 14550) ) socket.error: [Errno 22] Invalid argument 回答1: The error says that you have an invalid argument. When reading your

问题 I get an error if I want to write on my udp socket like this. According to the docu there shouldn't be a problem. I don't understand why bind() works well in the same way but sendto() fails. udp_port = 14550 udp_server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) udp_server.bind(('127.0.0.1', udp_port)) udp_clients = {} Error: udp_server.sendto('', ('192.0.0.1', 14550) ) socket.error: [Errno 22] Invalid argument 回答1: The error says that you have an invalid argument. When reading your

问题 I want to setup a socket interface. PC side runs a very simple socket server written in Python to test the connection: #!/usr/bin/python # This is server.py file import socket # Import socket module s = socket.socket() # Create a socket object host = socket.gethostname() # Get local machine name port = 5000 # Reserve a port for your service. s.bind((host, port)) # Bind to the port s.listen(5) # Now wait for client connection. while True: c, addr = s.accept() # Establish connection with client

问题 I want to setup a socket interface. PC side runs a very simple socket server written in Python to test the connection: #!/usr/bin/python # This is server.py file import socket # Import socket module s = socket.socket() # Create a socket object host = socket.gethostname() # Get local machine name port = 5000 # Reserve a port for your service. s.bind((host, port)) # Bind to the port s.listen(5) # Now wait for client connection. while True: c, addr = s.accept() # Establish connection with client

问题 After sending data over a socket with Winsock, you're supposed to close the connection like this: closesocket(ConnectSocket); WSACleanup(); I'm writing an API that sends data over a socket. If I have to close the socket afterwards, I need to add a function to the API so that users can say when they're done getting data. Is it a problem if I don't close the socket, for convenience? 回答1: One way or another, if you don't close a socket, your program will leak a file descriptor. Programs can

问题 After sending data over a socket with Winsock, you're supposed to close the connection like this: closesocket(ConnectSocket); WSACleanup(); I'm writing an API that sends data over a socket. If I have to close the socket afterwards, I need to add a function to the API so that users can say when they're done getting data. Is it a problem if I don't close the socket, for convenience? 回答1: One way or another, if you don't close a socket, your program will leak a file descriptor. Programs can

问题 I've written server and client programs with python Server.py import socket sock = socket.socket (socket.AF_INET, socket.SOCK_STREAM) host = socket.gethostname() port = 5555 sock.bind((host, port)) sock.listen(1) conn, addr = sock.accept() data = "Hello!" data = bytes(data, 'utf-8') conn.send(data) sock.close() Client.py on linux import socket sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) host = socket.gethostname() port = 5555 sock.connect((host, port)) data = sock.recv(2048) data

问题 After a couple weeks of frustration I was finally able to send a string from a Python client to a Hololens server. The code is below and runs perfectly. However, I was wondering if someone experienced with sockets could help me modify this code to send an openCV webcam frame (so basically just send an image) from Python to the Hololens. I've been trying but the image data does not seem to be received in the C# script. Thank you so much. Hololens Server Code: using System; using System

问题 I've set up a little script that should feed a client with html. import socket sock = socket.socket() sock.bind(('', 8080)) sock.listen(5) client, adress = sock.accept() print "Incoming:", adress print client.recv(1024) print client.send("Content-Type: text/html\n\n") client.send('<html><body></body></html>') print "Answering ..." print "Finished." import os os.system("pause") But it is shown as plain text in the browser. Can you please tell what I need to do ? I just can't find something in