On Disk Ringbuffer

Layer 0

What is RSV???

a, b, c - comma seperated values 0x61 0x2c 0x62 0x2c 0x63 - in unicode 0xFF 0xFF

Layer 1

What are pages (not unix pages - MY pages) pages are data structures

is_ready long - not used write_idx - where are we writing another_write_idx - the last confirmed safe write and_another_write_idx - not used empty space - this is the empty space where we actually write stuff

0000 0000 - is_ready 0000 0000 - write_idx 0000 0000 - another write idx 0000 0000 - and anotheru

0000000000000000000000000000000000000000000000000000000000000000000000000000000000

0000 0000 + 3 = 0000 0012 - write_idx 00000000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000abc000000000000000000000000000000000000000000000000000000000000000000000 0000 0000 + 3 = 0000 0003 - finished_write_idx

0000 0000 + 1 0003 = 0001 0012 - write_idx abc0xffdef0xffghi0xff000000000000000000000000000000000000000000000000000000000000

0001 0003 - 1 0000 = 0000 0003 - write_idx

1111 0000 & 0000 0010 0010 0100 -> max(safe_write_idx, 0000 0012) -> safe write idx

0000 0003

write_idx < read_idx + length => no new data / empty read