/* Read a raw hfsp_fork from memory.
*
* return pointer right after the structure.
*/
void*
volume_readfork(void *p, hfsp_fork_raw* f)
{
f->total_size = bswabU64_inc(p);
f->clump_size = bswabU32_inc(p);
f->total_blocks = bswabU32_inc(p);
return volume_readextent(p, f->extents);
}
/* intialize the record with the given index entry in the btree. */
static int record_init_extent(extent_record* r, btree* bt, node_buf* buf, UInt16 index)
{
void *p;
r-> tree = bt;
p = btree_key_by_index(bt, buf,index);
if (!p)
return -1;
p = record_extent_readkey(p, &r->key);
if (!p)
return -1;
p = volume_readextent(p, r->extent);
if (!p)
return -1;
r->node_index = buf->index;
r-> keyind = index;
return 0;
}
/* intialize the extent_record to the extent identified by the
* (first) blockindex.
*
* forktype: either HFSP_EXTEND_DATA or HFSP_EXTEND_RSRC
*/
int record_init_file(extent_record* r, btree* tree,
UInt8 forktype, UInt32 fileId, UInt32 blockindex)
{
int keyind;
UInt16 node_index;
hfsp_extent_key key = { 10, forktype, 0, fileId, blockindex };
void *p = record_find_key(tree, &key, &keyind, &node_index);
if (p)
{
r -> tree = tree;
r -> node_index= node_index;
r -> keyind = keyind;
r -> key = key; // Better use a record_key_copy ...
p = volume_readextent(p, r->extent);
if (!p)
HFSP_ERROR(-1, "record_init_file: unexpected error");
return 0;
}
fail:
return -1;
}
// For dependency reasons this actually is found in volume.h
char* record_extent_readrecord(char *p, void* entry)
{
return volume_readextent(p, (hfsp_extent*) entry);
}
