/* List node for a hash bucket of the blob table */
struct hlist_node hash_list;
- /* Uncompressed size of this blob */
+ /*
+ * Uncompressed size of this blob.
+ *
+ * In most cases we are now enforcing that this is nonzero; i.e. an
+ * empty stream will have "no blob" rather than "an empty blob". The
+ * exceptions are:
+ *
+ * - blob descriptors with 'blob_location == BLOB_NONEXISTENT',
+ * e.g. placeholder entries for new metadata resources or for
+ * blobs required for pipable WIM extraction. In these cases the
+ * size is not meaningful information anyway.
+ * - blob descriptors with 'blob_location == BLOB_IN_STAGING_FILE'
+ * can vary their size over time, including to 0.
+ */
u64 size;
union {
struct {
tchar *file_on_disk;
struct wim_inode *file_inode;
+ #ifdef __WIN32__
+ u64 sort_key;
+ #endif
};
/* BLOB_IN_ATTACHED_BUFFER */
blob->offset_in_res = offset_in_res;
}
-/*
- * Declare that the specified blob is located in the specified non-solid WIM
- * resource. In this case, the blob data is the entire uncompressed resource.
- */
-static inline void
-blob_set_is_located_in_nonsolid_wim_resource(struct blob_descriptor *blob,
- struct wim_resource_descriptor *rdesc)
-{
- blob_set_is_located_in_wim_resource(blob, rdesc, 0);
- blob->size = rdesc->uncompressed_size;
-}
-
static inline void
blob_unset_is_located_in_wim_resource(struct blob_descriptor *blob)
{