outputstream

How to catch all output text in c

This is my issue. I'm working on a unit testing class for a project in C. the unit testing class works great but one of methods it's testing calls a Method from an API to communicate with a piece of Hardware. because of the hardware's closed off software, there really is no way for me to allow it to run while I run my tests, and I should...

Scala socket cannot write to output stream

Hi, I'm new in the scala world, so excuse my trivial question. :) I just want to open a socket to a port and sand and receive messages. If I receive a HELO, I want to react with a message, but I'm not able to write to the socket in any way. I used nc to listen for incoming connections: nc -k -l 127.0.0.1 3333 When the client is conne...

Are the C formatted I/O functions (printf, sprintf, etc) more popular than IOStream, and if so, why?

I've been looking through a lot of code made by others lately and happened to notice everyone uses "printf" style C functions a lot, but the C++ functions learned in school (cout, specifically) don't seem so popular. Is this a valid observation, and is there a reason for this? Convention? Thanks, R ...

jQuery ajax call to httphandler returning zip file

I have an httphandler that creates a zip file and returns it for download. context.Response.AppendHeader("content-disposition", "attachment; filename=myfile.zip"); Is it possible to call the handler from a jquery ajax call? If yes, what kind of dataType should I declare? Thanks ...

Android: Multithreading-Bluetooth SPP/RFCOMM-How to keep my BluetoothSocket and OutputStream active when changing Activities

I am pretty new to Android and very new to Multithreading. I am writing an android application that contains multiple activities that implement onClickListners which sends a Bluetooth message on button click to . I have successfully been able to connect and keep my BluetoothSocket and OutputStream open while in one activity. I do not do...

Possible to send an image to my Servlet as a ByteBuffer?

I am attempting to have my android phone connect to my servlet and send it a certain image. The way I figured I would do this, is to use the copyPixelsToBuffer() function and then attempt to send this to the servlet through some output stream(similar to how I would do it in a normal stand alone java application). Will this way work? If s...

why is my PipedOutputStream deadlocking?

I am trying to implement a threaded circular buffer with PipedInputStream & PipedOutputStream but it is locking everytime when I get to mHead.write in the Decoder runnable. I thought there was no chance for deadlocks when using separate threads. private class DecoderTask implements Runnable{ @Override public void run() { ...

How this simple program works, I/O related

This is my program: #include <stdio.h> int main(int argc, char* argv[]) { char buf[1024] = {0}; setvbuf(stdout, buf, _IOFBF, 1024); printf("error\n"); printf("%s\n", buf); } And this is the output: error error Exited: ExitFailure 7 Why are both lines 3 and line 4 blank lines ? Isn't the character '\n' flushing the output b...

Inconsistent behavior when saving a PNG to Response.OutputStream

This question is related this one: http://stackoverflow.com/questions/582766/cannot-render-image-to-httpcontext-response-outputstream. It is not a duplicate. When attempting to save a PNG to the Response.OutputStream I am experiencing inconsistent behavior between the local development environment and the production environment. Namely,...

cl-pdf output error

I'm trying to use cl-pdf for some fairly basic PDF generation, but I'm getting tripped up at the examples (which is embarassing to say the least). When I run the first example included in the package (defun example1 (&optional (file #P"/tmp/ex1.pdf")) (pdf:with-document () (pdf:with-page () (pdf:with-outline-level ("Example...