On Feb 11, 6:41 pm, Matias Surdi <[EMAIL PROTECTED]> wrote: > Suppose I've a process P1, which generates itself a lot of data , for > example 2Mb. > Then, I've a process P2 which must access P1 shared memory and, > probably, modify this data. > To accomplish this, I've been digging around python's mmap module, but I > can't figure how to use it without files. > > Could anybody explain me how could this be accomplished? An example will > be very appreciated. Thanks a lot for your help.
In C you can use the mmap call to request a specific physical location in memory (whence I presume two different processes can mmap anonymous memory block in the same location), but Python doesn't expose this. There isn't really as much drawback to using a file as you might expect, and there are benefits. If you use an anonymous map the OS could still write that memory to swap space, which, if your swap space is fixed and limited, might negatively affect performance for the rest of the system. Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
