static void __check_xcache(struct inode *inode, struct xcache_data *data, int nr_data) { for (int i = 0; i < nr_data; i++) { struct xattr *xattr; xattr = xcache_lookup(tux_inode(inode)->xcache, data[i].atom); if (data[i].len == -1) test_assert(IS_ERR(xattr)); else { test_assert(!IS_ERR(xattr)); test_assert(xattr->atom == data[i].atom); test_assert(xattr->size == data[i].len); test_assert(!memcmp(xattr->body, data[i].buf, xattr->size)); } } }
int main(int argc, char *argv[]) { unsigned abits = DATA_BTREE_BIT|CTIME_SIZE_BIT|MODE_OWNER_BIT|LINK_COUNT_BIT|MTIME_BIT; struct dev *dev = &(struct dev){ .bits = 8, .fd = open(argv[1], O_CREAT|O_RDWR, S_IRUSR|S_IWUSR) }; assert(!ftruncate(dev->fd, 1 << 24)); init_buffers(dev, 1 << 20, 0); struct sb *sb = rapid_sb(dev, .version = 0, .atomref_base = 1 << 10, .unatom_base = 1 << 11, .atomgen = 1); struct inode *inode = rapid_open_inode(sb, NULL, S_IFDIR | 0x666, .present = abits, .i_uid = 0x12121212, .i_gid = 0x34343434, .i_ctime = spectime(0xdec0debeadULL), .i_mtime = spectime(0xbadfaced00dULL)); inode->btree = (struct btree){ .root = { .block = 0xcaba1f00dULL, .depth = 3 } }; sb->atable = inode; for (int i = 0; i < 2; i++) { struct buffer_head *buffer = blockget(mapping(inode), tux_sb(inode->i_sb)->atomref_base + i); memset(bufdata(buffer), 0, sb->blocksize); blockput_dirty(buffer); } if (1) { warn("---- test positive and negative refcount carry ----"); use_atom(inode, 6, 1 << 15); use_atom(inode, 6, (1 << 15)); use_atom(inode, 6, -(1 << 15)); use_atom(inode, 6, -(1 << 15)); } warn("---- test atom table ----"); printf("atom = %Lx\n", (L)make_atom(inode, "foo", 3)); printf("atom = %Lx\n", (L)make_atom(inode, "foo", 3)); printf("atom = %Lx\n", (L)make_atom(inode, "bar", 3)); printf("atom = %Lx\n", (L)make_atom(inode, "foo", 3)); printf("atom = %Lx\n", (L)make_atom(inode, "bar", 3)); warn("---- test inode xattr cache ----"); int err; err = xcache_update(inode, 0x666, "hello", 5, 0); if (err) printf("err %d\n", err); err = xcache_update(inode, 0x777, "world!", 6, 0); if (err) printf("err %d\n", err); xcache_dump(inode); struct xattr *xattr = xcache_lookup(tux_inode(inode)->xcache, 0x777); if (!IS_ERR(xattr)) printf("atom %x => %.*s\n", xattr->atom, xattr->size, xattr->body); err = xcache_update(inode, 0x111, "class", 5, 0); if (err) printf("err %d\n", err); err = xcache_update(inode, 0x666, NULL, 0, 0); if (err) printf("err %d\n", err); err = xcache_update(inode, 0x222, "boooyah", 7, 0); if (err) printf("err %d\n", err); xcache_dump(inode); warn("---- test xattr inode table encode and decode ----"); char attrs[1000] = { }; char *top = encode_xattrs(inode, attrs, sizeof(attrs)); hexdump(attrs, top - attrs); printf("predicted size = %x, encoded size = %Lx\n", encode_xsize(inode), (L)(top - attrs)); inode->xcache->size = offsetof(struct xcache, xattrs); char *newtop = decode_attrs(inode, attrs, top - attrs); printf("predicted size = %x, xcache size = %x\n", decode_xsize(inode, attrs, top - attrs), inode->xcache->size); assert(top == newtop); xcache_dump(inode); free(inode->xcache); inode->xcache = NULL; warn("---- xattr update ----"); set_xattr(inode, "hello", 5, "world!", 6, 0); set_xattr(inode, "empty", 5, "zot", 0, 0); set_xattr(inode, "foo", 3, "foobar", 6, 0); xcache_dump(inode); warn("---- xattr remove ----"); // del_xattr(inode, "hello", 5); xcache_dump(inode); warn("---- xattr lookup ----"); for (int i = 0, len; i < 3; i++) { char *namelist[] = { "hello", "foo", "world" }, *name = namelist[i]; char data[100]; int size = get_xattr(inode, name, len = strlen(name), data, sizeof(data)); if (size < 0) printf("xattr %.*s not found (%s)\n", len, name, strerror(-size)); else printf("found xattr %.*s => %.*s\n", len, name, size, data); } warn("---- list xattrs ----"); int len = xattr_list(inode, attrs, sizeof(attrs)); printf("xattr list length = %i\n", xattr_list(inode, NULL, 0)); hexdump(attrs, len); warn("---- atom reverse map ----"); for (int i = 0; i < 5; i++) { unsigned atom = i, offset; struct buffer_head *buffer = blockread_unatom(inode, atom, &offset); loff_t where = from_be_u64(((be_u64 *)bufdata(buffer))[offset]); blockput_dirty(buffer); buffer = blockread(mapping(inode), where >> sb->blockbits); printf("atom %.3Lx at dirent %.4Lx, ", (L)atom, (L)where); hexdump(bufdata(buffer) + (where & sb->blockmask), 16); blockput(buffer); } warn("---- atom recycle ----"); set_xattr(inode, "hello", 5, NULL, 0, 0); show_freeatoms(sb); printf("got free atom %x\n", get_freeatom(inode)); printf("got free atom %x\n", get_freeatom(inode)); printf("got free atom %x\n", get_freeatom(inode)); warn("---- dump atom table ----"); dump_atoms(inode); show_buffers(inode->map); exit(0); }