Sending data 5 items through a loop and receiving 7?

Sending data 5 items through a loop and receiving 7?

By : user2956005
Date : November 22 2020, 10:48 AM
To fix the issue you can do I think this should be the expected behavior, because the this.map(method, path, fn) is not called inside the ordered.methods.forEach, but it is called in the Resource.get / Resource.post / Resource.put etc.
code :

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TCP - Sending and Receiving TCP/IP Data

TCP - Sending and Receiving TCP/IP Data

By : user3178698
Date : March 29 2020, 07:55 AM
I wish this help you Deja vu Will TCPStream read block until all data is received.
I realize it looks a little different but at the core they are very similar questions.
Sending and Receiving XML data over TCP

Sending and Receiving XML data over TCP

By : Unik Rider Sam
Date : March 29 2020, 07:55 AM
Hope this helps I've been trying to figure out how to send and receive XML Data over a TCP Server. I'm coming from a java programming background so i'm a bit out of my depth here. My program works if i'm sending just plain text, however once I try to send the xml data it just hangs. The server never receives the message. I've been searching for code to do this and haven't found any luck, i've seen lots of code samples online that don't work. please if any of you can solve this problem I would be very grateful. , Don't read until you have flushed the writer.
code :
NetworkStream stream = client.GetStream();
StreamWriter writer = new StreamWriter(stream, Encoding.UTF8);
writer.AutoFlush = false;

StreamReader reader = new StreamReader(stream, Encoding.UTF8);
response = reader.ReadLine();

TCP Client sending but not receiving and Server receiving but not sending

TCP Client sending but not receiving and Server receiving but not sending

By : Vivek Mathur
Date : March 29 2020, 07:55 AM
help you fix your problem Your server never actually finishes sending a line. It sends "killpr" then leaves the socket alone forever - without sending a newline or closing the socket.
On the client, readLine doesn't return because it's waiting for the rest of the line.
Socket programming sending and receiving messages with a loop in C

Socket programming sending and receiving messages with a loop in C

By : Affine
Date : March 29 2020, 07:55 AM
help you fix your problem One problem here is that there is no synchronization between the server sending the size of the directory and the directory entries and the client receiving them. In other words, if the directory contains entry.1, entry.2, and entry.3, the client may receive, for example, entry.1 and entry.2entry.3, or entry.1entry.2 and entry.3. This is true even if unicode is not involved here as a culprit, as suggested by JVene.
A couple other things:
code :
// Assume maximum entry length is 255
// The buffer is 256 bytes long to accommodate the NULL-terminator.
// The terminator is important for the client as direntry delimiter.
char buffer[256];
 // get the size of the directory
unsigned long size = htonl(dirSize());
int n = send(client_sock, &size, sizeof(size), 0);
if(n < 0) puts("can't send size to server");

DIR *d = opendir(".");
struct dirent *dir;
if (d)
    while((dir = readdir(d))!= NULL)
      memset(&buffer[0], 0, sizeof(buffer)); // clear buffer
      strcat(buffer,  dir->d_name);
      // Write up to 255 chars of direntry + the NULL-terminator.
      n = send(client_sock, buffer, strlen(buffer) + 1, 0);
      if(n < 0) puts("can't send entry to server");
   puts("Error...could not get files from directory.");
   char buffer[256];

    * We need this in case the beginning of a directory entry is in one buffer, but
    * the end is in the next.
   char buf_1[256];
   unsigned long size;

   buf_1[0] = 0; // make sure strlen(buf_1) is 0.

   int n = recv(sockfd, &size, sizeof(long), 0);// recieve the size of the directory

   if(n < 0) puts("can't receive size from server");
   size = ntohl(size);

   while(size > 0){
       memset(&buffer[0], 0, sizeof(buffer)); // clear buffer
       n = recv(sockfd, buffer, 255, 0);  // keep last element of buffer as 0
       if(n < 0) puts("can't receive entry from server");

       int _start = 0;
       if (strlen(buf_1)) // something left over from previously read buffer
          // buf_1 contains beginning of an entry, buffer - the end
          strcat(buf_1, buffer); // Assume there is a 0-terminator somewhere in buffer
          printf("receiving: %s\n", buf_1);  // buf_1 now has the entry, print it          buf_1[0] = 0;  // flag buf_1 as empty
          size--;  // we are one direntry down
          _start += strlen(buffer) + 1;  // move _start to char following 0-terminator
       // Loop while _start is 0 - 254, the char at offset _start is not NULL,
       // and there are still entries to retrieve.
       while (_start < 255 && *(buffer + _start) && size > 0)
          if (strlen( buffer + _start ) + _start >= 255) // no null terminator, need buf_1
             strcpy(buf_1, buffer + _start);  // copy unfinished entry to buf_1
             // don't decrement size, we haven't extracted a full direntry.
             break;  // out of the inner while to read more from the socket.
          else // we have a full direntry
             printf("receiving: %s\n", buffer + _start); // print it
             _start += strlen(buffer + _start) + 1;  // move offset to next possible entry
             size--; // one entry down
Receiving and sending data in C#

Receiving and sending data in C#

By : codemax
Date : March 29 2020, 07:55 AM
it helps some times Several problems here:
StreamReader has a 4kB buffer and will try to read as much as possible in the first call to ReadLine(). The result is that you might have data in the StreamReader and go into Poll() when there's no more data available because it's already been read. Poll() takes microseconds. Waiting 0.02ms for incoming data is likely to return false unless the data is there before you call Poll(). You create a new StreamReader on every iteration, which might discard data already read in the previous one.
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