Ring Buffer
A fixed-capacity FIFO that overwrites its oldest entry, demoing the p/moul/x/daily/ringbuffer library.
Capacity 4, pushing 6 entries:
| push | evicted | contents (oldest → newest) |
|---|---|---|
alpha |
— | alpha |
bravo |
— | alpha bravo |
charlie |
— | alpha bravo charlie |
delta |
— | alpha bravo charlie delta |
echo |
alpha |
bravo charlie delta echo |
foxtrot |
bravo |
charlie delta echo foxtrot |
The buffer never grows: once full, each push costs the oldest entry. On chain that bound is the point — an unbounded queue is an unbounded storage bill.
