popen in thread on QNX
Jacek Popławski
jpopl at interia.pl
Thu Sep 8 10:50:32 EDT 2005
Laszlo Zsolt Nagy wrote:
> - one of your worker threads wants to run a command
> - it creates the argument list and puts it into a message queue
> - woker thread starts to sleep
> - main thread processes the message queue -> it will run popen, put back
> the file descriptors into the message and wake up the worker thread
> - the worker thread starts to work with the files
Just like I wrote in previous thread ("killing thread after timeout") -
I am writting application which read command from socket and run it. I
need to be sure, that this command will not take too much time, so I
need some kind of timeout, and I need to see its stdout and stderr.
So I run command on separate thread, this thread calls
os.system(command), main thread takes care about timeout.
popen or fork/execve would be much better than os.system, but they both
fail on QNX, because os.fork() is not implemented in thread
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