I am looking to run the labrea program from within a program I am creating in one thread and posting the data into the database in another. I need to be able to launch the program with its args and receive the data it will be outputting so I can place that into a structure. I have taken a look at the FAQ but it didn't mention how I could get it to retrieve the output from the subprocess.
Last edited by Doorsdown; 10-15-2007 at 09:59 PM.
Do you mean to read from the stdout of the child process?
All problems in computer science can be solved by another level of indirection,
except for the problem of too many layers of indirection.
– David J. Wheeler
yes i do
one way to do it
system("myprog > tempfile");
and then read the tempfile
there are more advanced ways of doing the same - you can search the forum
All problems in computer science can be solved by another level of indirection,
except for the problem of too many layers of indirection.
– David J. Wheeler
It's really platform specific, if you're looking for a Win32 solution you can create a child process with inherited stdout, stdin and stderr handles (from the parent) with CreateProcess().
I'm looking for a POSIX solution, win32 is not even being considered. Its Current method works off of a temp file and that is one key thing I am trying to avoid.
What about popen()
man popen
There's also a _popen in windows, that apparently does the same thing.
--
Mats
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.
