You could have a BlockingQueue of message objects. Other threads would place messages onto the queue. As part of the while(true) loop, thread A would poll the queue and process any messages that have arrived. In code: class A extends Thread{ List<Object> objs = something ;//init it BlockingQueue<Message> queue = new LinkedBlockingQueue<Message>(); void run(){ while(true){ … Read more
“Segmentation fault” message might be generated by a shell. To find out, whether the process is kill by SIGSEGV, check proc.returncode == -signal.SIGSEGV. If you want to see the message, you could run the command in the shell: #!/usr/bin/env python from subprocess import Popen, PIPE proc = Popen(shell_command, shell=True, stdout=PIPE, stderr=PIPE) out, err = proc.communicate() … Read more
.communicate() writes input (there is no input in this case so it just closes subprocess’ stdin to indicate to the subprocess that there is no more input), reads all output, and waits for the subprocess to exit. The exception EOFError is raised in the child process by raw_input() (it expected data but got EOF (no … Read more