| asynced0 ↔ old_ino = new_ino ∧ new_dent = old_dent, asynced1 ↔ new_dent.dentry?, dirs0[m0] = mkdir(m6, md6, # links(m0, dirs0), m9, entries0), files[entries0[str0]] = mkfile(m4, md4, # links(entries0[str0], dirs0), content0), files[entries[str]] = mkfile(m1, md3, # links(entries[str], dirs0), content), dirs0[m] = mkdir(m5, md5, # links(m, dirs0), m7, entries), asynced0, dirs = dirs0[old_ino, dirs0[old_ino].entries:= (dirs0[old_ino].entries -- old_dent.name)], new_child_inode = mkinode(entries[str], md, false, # links(entries[str], dirs0), 0, m2), new_dent = mkdentry(str, entries[str]), new_ino = new_parent_inode.ino, new_parent_inode = mkinode(m, md1, true, # links(m, dirs0), m7, m5), old_child_inode = mkinode(entries0[str0], md0, false, # links(entries0[str0], dirs0), 0, m3), old_dent = mkdentry(str0, entries0[str0]), old_ino = old_parent_inode.ino, old_parent_inode = mkinode(m0, md2, true, # links(m0, dirs0), m9, m6), afs-cons(dirs0, files), pre-rename(old_parent_inode, old_dent, old_child_inode, new_parent_inode, new_dent, new_child_inode, dirs0, files), entries0[str0] ∈ files, entries[str] ∈ files, m0 ∈ dirs0, m ∈ dirs0, str0 ∈ entries0, str ∈ entries, m = m0 → md1 = md2, links(m0, dirs0) ≠ ∅ ∨ m0 = ROOT_INO, links(m, dirs0) ≠ ∅ ∨ m = ROOT_INO ⊦ ⟪skip; dirs[new_ino].entries[new_dent.name] := old_dent.ino; if asynced1 ∧ ¬ asynced0 then let ino = new_dent.ino in afs_drop_nlink#(ino; dirs, files); if ¬ asynced1 then {dirs[new_ino].size := dirs[new_ino].size + 1; if old_dent.ino ∈ dirs then dirs[new_ino].nsubdirs := dirs[new_ino].nsubdirs + 1}; new_dent := mkdentry(new_dent.name, old_dent.ino); old_dent := negdentry(old_dent.name); afs_inode_sync#(old_parent_inode; dirs, files); afs_inode_sync#(new_parent_inode; dirs, files); if asynced1 then {afs_inode_sync#(new_child_inode; dirs, files); new_child_inode := getinode(new_child_inode.ino, dirs, files)}; old_parent_inode := getinode(old_parent_inode.ino, dirs, files); new_parent_inode := getinode(new_parent_inode.ino, dirs, files); err := ESUCCESS; asynced := ?⟫ afs-cons(dirs, files) |
asynced1 ↔ new_dent.dentry?, asynced0 ↔ old_ino = new_ino ∧ new_dent = old_dent, dirs0[m] = mkdir(m5, md5, # links(m, dirs0), m7, entries), files[entries[str]] = mkfile(m1, md3, # links(entries[str], dirs0), content), files[entries0[str0]] = mkfile(m4, md4, # links(entries0[str0], dirs0), content0), dirs0[m0] = mkdir(m6, md6, # links(m0, dirs0), m9, entries0), asynced0, dirs = dirs0[old_ino, dirs0[old_ino].entries:= (dirs0[old_ino].entries -- old_dent.name)], new_child_inode = mkinode(entries[str], md, false, # links(entries[str], dirs0), 0, m2), new_dent = mkdentry(str, entries[str]), new_ino = new_parent_inode.ino, new_parent_inode = mkinode(m, md1, true, # links(m, dirs0), m7, m5), old_child_inode = mkinode(entries0[str0], md0, false, # links(entries0[str0], dirs0), 0, m3), old_dent = mkdentry(str0, entries0[str0]), old_ino = old_parent_inode.ino, old_parent_inode = mkinode(m0, md2, true, # links(m0, dirs0), m9, m6), afs-cons(dirs0, files), pre-rename(old_parent_inode, old_dent, old_child_inode, new_parent_inode, new_dent, new_child_inode, dirs0, files), str ∈ entries, str0 ∈ entries0, m ∈ dirs0, m0 ∈ dirs0, entries[str] ∈ files, entries0[str0] ∈ files, m = m0 → md1 = md2, links(m, dirs0) ≠ ∅ ∨ m = ROOT_INO, links(m0, dirs0) ≠ ∅ ∨ m0 = ROOT_INO ⊦ ⟪dirs[new_ino].entries[new_dent.name] := old_dent.ino; if asynced1 ∧ ¬ asynced0 then let ino = new_dent.ino in afs_drop_nlink#(ino; dirs, files); if ¬ asynced1 then {dirs[new_ino].size := dirs[new_ino].size + 1; if old_dent.ino ∈ dirs then dirs[new_ino].nsubdirs := dirs[new_ino].nsubdirs + 1}; new_dent := mkdentry(new_dent.name, old_dent.ino); old_dent := negdentry(old_dent.name); afs_inode_sync#(old_parent_inode; dirs, files); afs_inode_sync#(new_parent_inode; dirs, files); if asynced1 then {afs_inode_sync#(new_child_inode; dirs, files); new_child_inode := getinode(new_child_inode.ino, dirs, files)}; old_parent_inode := getinode(old_parent_inode.ino, dirs, files); new_parent_inode := getinode(new_parent_inode.ino, dirs, files); err := ESUCCESS; asynced := ?⟫ afs-cons(dirs, files)