On 05/28/2010 02:14 AM, Jan Friesse wrote: > Angus, > attached is fixed version of rb, which should do what you think current > implementation is doing. Please take a time to read comments beginning > with "^^^^^" > > But basically: > - Implementation didn't support storing of data with non multiply > word-size (ie. 32-bit) records (7 bytes, ...) > - MMaped circular buffer needs backend in file. Take a look to coroipcc > how to make it in shm, ... > > Regards, > Honza
The current mmap in Angus's code is correct - it creates a private circular map that is replicated back to back to let the kernel memory manager deal with wrapping. (the log ring is never in shared memory). It would be interesting to allow the ring buffer to be created with a backing store for the shared memory case. I'll have a look at the word size issue. _______________________________________________ Openais mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/openais
