| # lpt0 = # avol, # lpt = # avol, keyset(gch) = gc-heap(lpt, log0), log = log0, awbuf-inv(avol, bleb), bin-heap-inv(gch, lpt), buf-ro-rw-mode(isbuf, bleb, lpt, avol), bufs-log-only(bleb, log0, lpt), freelist-cons(lpt, freelist), log-group-block(log0, lpt), lpt-free-unref(lpt0), lpt-free-unref(lpt), lpt-leb-size(lpt0), lpt-leb-size(lpt), lpt-ram-flash(lpt, lpt0, log0), synced(avol) ⊦ ⟪if synced(avol) then let n = ? in {persistence_allocate_leb#(adr, m, log, lpt0, ns, bleb, isbuf; n, lpt, freelist, avol; err); if err = ESUCCESS then {awbuf_move_buf#(n, 0, adr, m, log, avol, lpt0, ns, isbuf; bleb; err); if err ≠ ESUCCESS then freelist := n + freelist else lpt[n].flags := LP_INDEX_NODES}} else abort⟫ ( lpt-free-unref(lpt) ∧ freelist-cons(lpt, freelist) ∧ bin-heap-inv(gch, lpt) ∧ keyset(gch) = gc-heap(lpt, log0) ∧ bufs-log-only(bleb, log0, lpt) ∧ # lpt = # avol ∧ log-group-block(log0, lpt) ∧ buf-ro-rw-mode(isbuf, bleb, lpt, avol) ∧ lpt-leb-size(lpt) ∧ lpt-ram-flash(lpt, lpt0, log0) ∧ awbuf-inv(avol, bleb) ∧ # lpt0 = # avol) |
# lpt = # avol, # lpt0 = # avol, keyset(gch) = gc-heap(lpt, log0), log = log0, awbuf-inv(avol, bleb), bin-heap-inv(gch, lpt), buf-ro-rw-mode(isbuf, bleb, lpt, avol), bufs-log-only(bleb, log0, lpt), freelist-cons(lpt, freelist), log-group-block(log0, lpt), lpt-free-unref(lpt), lpt-free-unref(lpt0), lpt-leb-size(lpt), lpt-leb-size(lpt0), lpt-ram-flash(lpt, lpt0, log0), synced(avol) ⊦ ⟪let n = ? in {persistence_allocate_leb#(adr, m, log, lpt0, ns, bleb, isbuf; n, lpt, freelist, avol; err); if err = ESUCCESS then {awbuf_move_buf#(n, 0, adr, m, log, avol, lpt0, ns, isbuf; bleb; err); if err ≠ ESUCCESS then freelist := n + freelist else lpt[n].flags := LP_INDEX_NODES}}⟫ ( lpt-free-unref(lpt) ∧ freelist-cons(lpt, freelist) ∧ bin-heap-inv(gch, lpt) ∧ keyset(gch) = gc-heap(lpt, log0) ∧ bufs-log-only(bleb, log0, lpt) ∧ # lpt = # avol ∧ log-group-block(log0, lpt) ∧ buf-ro-rw-mode(isbuf, bleb, lpt, avol) ∧ lpt-leb-size(lpt) ∧ lpt-ram-flash(lpt, lpt0, log0) ∧ awbuf-inv(avol, bleb) ∧ # lpt0 = # avol)