sockets

问题 I'm sending a large amount of data in one go between a client and server written C#. It works fine when I run the client and server on my local machine but when I put the server on a remote computer on the internet it seems to drop data. I send 20000 strings using the socket.Send() method and receive them using a loop which does socket.Receive(). Each string is delimited by unique characters which I use to count the number received (this is the protocol if you like). The protocol is proven,

问题 I'm sending a large amount of data in one go between a client and server written C#. It works fine when I run the client and server on my local machine but when I put the server on a remote computer on the internet it seems to drop data. I send 20000 strings using the socket.Send() method and receive them using a loop which does socket.Receive(). Each string is delimited by unique characters which I use to count the number received (this is the protocol if you like). The protocol is proven,

问题 I'm just trying to get the contents of a page with their headers...but it seems that my buffer of size 1024 is either too large or too small for the last packet of information coming through...I don't want to get too much or too little, if that makes sense. Here's my code. It's printing out the page just fine with all the information, but I want to ensure that it's correct. //Build HTTP Get Request std::stringstream ss; ss << "GET " << url << " HTTP/1.0\r\nHost: " << strHostName << "\r\n\r\n"

问题 i currently have 2 screens an all messages screen which includes all the chats i participated in and a chat screen which is the actual chat itself. In my chat screen i successfully implemented sockets, so when both users are on the chat screen at the same time messages are getting exchanged live. My problem: Example: if user 1 is on the allmessages screen and user 2 is inside the chat. And user 2 sends user 1 a message, user 1's screen does not automatically update with the last message for

问题 i currently have 2 screens an all messages screen which includes all the chats i participated in and a chat screen which is the actual chat itself. In my chat screen i successfully implemented sockets, so when both users are on the chat screen at the same time messages are getting exchanged live. My problem: Example: if user 1 is on the allmessages screen and user 2 is inside the chat. And user 2 sends user 1 a message, user 1's screen does not automatically update with the last message for

问题 I'm writing a network client for a given protocol using TCP and I'm having having some philosophical issues with the overall architecture of the thing. Sometimes it may happen that I don't have the whole request data and I may need to read a few more bytes than what's available at the moment, and I imagine sometimes I can get parts of another request after the one I want. What's the usual approach in this kind of situations? 回答1: TCP sockets are Stream-Oriented. That means that reading them

问题 I am writing a python program that sends packets for a specified amount of time. The sending script: import socket import time import networkparam import ray ray.init() transformer_sending_time = 0 final_message_sent = False @ray.remote def send_message(): """ Sends an abnormal measurement to the specified ip address or port number given by the networkparam module Parameters ---------- None, however we can consider the definitions in networkparam as the function args Returns ---------- None "

问题 I've been trying to code a server socket that accepts connections from multiple clients, a client socket that allows for a connection to the server and real time exchange of messages between multiple clients. I found only one working example, which doesn't produce any runtime errors, but if Client1 sends out a message, Client2 doesn't receive the message until Client2 sends a message of its own. This makes it very confusing to chat. I'm not sure how to modify the code, so that each time

问题 I'm sorry for such a big block of code, but I'm so lost as to what is happening, I have no idea where the problem might be... I am trying to get a VERY minimal dtls server going and I can't get the client and server to finish handshaking. Here is my code: #include <stdio.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/time.h> #include <netinet/in.h> #include <arpa/inet.h> #include <stdio.h> #include <unistd.h> #include <stdlib.h> #include <string.h> #include <pthread.h>

问题 What is the difference between: socket.broadcast.to().emit() and socket.to().emit() Here on the socket.io cheat sheet it says socket.to('game').emit('nice game', "let's play a game"); // sending to all clients in 'game' room except sender Then in this tutorial blog it says: socket.broadcast.to('game').emit('message', 'nice game'); //sending to all clients in 'game' room(channel) except sender socket.to('game').emit('message', 'enjoy the game'); //sending to sender client, only if they are in