send

问题 I am programming TCP server client. I sending the three string seperately using seperate send system call. But receiving end i getting only single string that is first string which i send. remaining two string missed. Below i given the part of my server client program. client.c char *info = "infolog"; char *size = "filesize"; char *end = "fileend"; send(client, info, strlen(info)+1, 0); send(client, size, strlen(size)+1, 0); send(client, end, strlen(end)+1, 0); server.c while ((read_size =

问题 This question already has answers here : sending blocks of 2D array in C using MPI (2 answers) Closed 3 years ago . So... My question is simple. Let's assume we have a master MPI process with a master_array of 6*6 cells: Master ----------- 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 And that we have 4 worker MPI processes with worker_array of 3*3 cells. Worker 1 | Worker 2 | Worker 3 | Worker 4 | ------- | ------- | ------- | ------- | 1 1 1 | 2 2 2 | 3 3 3 | 4 4 4

问题 Although I have read a lot about WSAsend (msdn), I still need some clarifications. Part of my code: int rc; rc=WSASend(Socket,....); if (rc==0) {....} else if ((rc == SOCKET_ERROR) && (WSA_IO_PENDING != (err = WSAGetLastError()))) { printf("WSASend failed with error: %d Socket(%d) \n", err,(pTmp1->Socket)); .... } There is said in msdn that WSAsend operation may sometimes completes immediately returning zero (it never happened during my test server ). So if this happens, the

问题 I'm writing a small program to request a chunk of a file, and then have another program return that specific chunk of the file. I can get this to work using files up to about 555000 bytes, but on anything lager than that, I get unusual behavior. In my loop, I check a progress buffer, which is an array of integers, to see whether or not I have a specific chunk of the file. If I do, then I don't send a request for that chunk, but if I don't, then I request the chunk from a peer. I have a linked

问题 I have an android application that requests data from my mysql database. This works fine but when I try to send a parameter for how many items to retrieve I get nothing. This is my java code: result = ""; client = new DefaultHttpClient(); post = new HttpPost("http://www.XXX.XXXX.XX/XX.php"); nameValuePairs = new ArrayList<NameValuePair>(); nameValuePairs.add(new BasicNameValuePair("itemsToGet", itemsToGet)); try { post.setEntity((new UrlEncodedFormEntity(nameValuePairs))); response = client

问题 I am using the send button to share a link and a message on a app but I get this error when I try to read the message: Attachment Unavailable The privacy settings on this attachment do not allow you to view it. I get the message but can't see the attachment. The attachment should be a link! Here is the code I use: <div id="fb-root"></div> <script>(function(d){ var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;} js = d.createElement('script'); js.id = id; js.async = true; js.src

问题 Im having a big problem here! I need to send a newsletter to all my subscribers (around 1200) The thing is that it only sends the newsletter to 150-180 of them. I have a script implemented in php that uses the PhpMailer() class to send the newsletter to all the subscribers. I purchased a plan in MailJet that allows me to send 30 thousand emails per month, so Im using their SMTP host to send the newsletter. Here is my script: $mail = new PHPMailer(); $body = $message; $body = eregi_replace("[\

问题 I am new to socket programming, I am trying to send some packets to server using the send() function in C++, but I am always getting a 'Broken pipe' error while sending packets to the server. Could you please help me for the below points? When the send() function returns the "Broken pipe" errors? What are the causes for "Broken pipe" errors in socket programming? What will be the solution for "Broken pipe" error from the send() function? Note: I am using named socket to communicate between

问题 I am writing a multithreaded socket application in Python using the socket module. the server listens for connections and when it gets one it spawns a thread for that socket. the server thread sends some data to the client. but the client is not yet ready to receive it. I thought this would have caused the server to wait until the client starts recv but instead returns immediately the client then calls recv which is blocking and no data is ever received. client socket constructor self._

问题 This is a follow-up question from MPI_Gather 2D array. Here is the situation: id = 0 has this submatrix |16.000000| |11.000000| |12.000000| |15.000000| |6.000000| |1.000000| |2.000000| |5.000000| |8.000000| |3.000000| |4.000000| |7.000000| |14.000000| |9.000000| |10.000000| |13.000000| ----------------------- id = 1 has this submatrix |12.000000| |15.000000| |16.000000| |11.000000| |2.000000| |5.000000| |6.000000| |1.000000| |4.000000| |7.000000| |8.000000| |3.000000| |10.000000| |13.000000|