AUX area is defined by aux_{offset,size} fields that should be set by the userspace, so that
aux_offset >= data_offset + data_size
prior to mmap()ing it. Size of the mmap()ed area should be aux_size.
Ring buffer pointers aux_{head,tail} have the same semantics as data_{head,tail} and same ordering rules apply.
See Implementation
AUX area is defined by aux_{offset,size} fields that should be set by the userspace, so that
prior to mmap()ing it. Size of the mmap()ed area should be aux_size.
Ring buffer pointers aux_{head,tail} have the same semantics as data_{head,tail} and same ordering rules apply.