New submission from Steve Foley: Hello, I would like to submit an example for the mmap docs page. It demonstrates the use of shared memory and message passing between processes. Thanks! -------------------- import mmap, os, select NUM_CHILDREN = 30 MSG_LEN = 8 BUF_LEN = NUM_CHILDREN * MSG_LEN buf = mmap.mmap(-1, BUF_LEN) p = select.poll() def write_buffer(i): msg = '%s\t%d\n' % (i, os.getpid()) offset = MSG_LEN * i buf.seek(offset) buf.write(msg) def child(i, pipeout): write_buffer(i) os.write(pipeout, 'OK\0'.encode()) os._exit(0) def fork(i, p): pipein, pipeout = os.pipe() if os.fork() == 0: child(i, pipeout) else: p.register(pipein) def loop(msgs, p): while msgs: for fd, event in p.poll(): p.unregister(fd) msgs = msgs - 1 for i in range(NUM_CHILDREN): fork(i, p) loop(NUM_CHILDREN, p) buf.seek(0) print buf.read(BUF_LEN) ---------- assignee: docs@python components: Documentation messages: 218478 nosy: docs@python, hudson priority: normal severity: normal status: open title: submitting mmap example for use in documentation type: enhancement versions: Python 2.7 _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue21501> _______________________________________