*
* wimlib_extract_paths() and wimlib_extract_pathlist() allow extracting a set
* of paths from a WIM image in a manner that may be easier to use than
- * wimlib_extract_files(), and also can wildcard characters.
+ * wimlib_extract_files(), and also allow wildcard patterns.
*
* wimlib_extract_image_from_pipe() allows an image to be extracted from a
* pipable WIM sent over a pipe; see @ref subsec_pipable_wims.
* extracted. @p info will point to ::wimlib_progress_info.extract. */
WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_END,
- /** The WIM image's files resources are currently being extracted. @p
- * info will point to ::wimlib_progress_info.extract. */
+ /** File data is currently being extracted. @p info will point to
+ * ::wimlib_progress_info.extract. */
WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS,
/** Starting to read a new part of a split pipable WIM over the pipe.
* ::wimlib_progress_info.integrity. */
WIMLIB_PROGRESS_MSG_CALC_INTEGRITY,
- /** Reserved. (Previously used for WIMLIB_PROGRESS_MSG_JOIN_STREAMS,
- * but in wimlib v1.5.0 this was removed to simplify the code and now
- * you'll get ::WIMLIB_PROGRESS_MSG_WRITE_STREAMS messages instead.) */
+ /** Reserved. */
WIMLIB_PROGRESS_MSG_RESERVED,
/** A wimlib_split() operation is in progress, and a new split part is
uint64_t num_bytes_scanned;
} scan;
- /** Valid on messages ::WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_BEGIN,
+ /** Valid on messages
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_SPWM_PART_BEGIN,
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_BEGIN,
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_TREE_BEGIN,
* ::WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_BEGIN,
* ::WIMLIB_PROGRESS_MSG_EXTRACT_DIR_STRUCTURE_END,
- * ::WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS, and
- * ::WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_END. */
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS,
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_TREE_END,
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_IMAGE_END, and
+ * ::WIMLIB_PROGRESS_MSG_APPLY_TIMESTAMPS.
+ *
+ * Note: most of the time of an extraction operation will be spent
+ * extracting streams, and the application will receive
+ * ::WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS during this time. Using @p
+ * completed_bytes and @p total_bytes, the application can calculate a
+ * percentage complete. However, note that this message does not, in
+ * general, actually provide information about which "file" is currently
+ * being extracted. This is because wimlib, by default, extracts the
+ * individual data streams in whichever order it determines to be the
+ * most efficient. */
struct wimlib_progress_info_extract {
- /** Number of the image being extracted (1-based). */
+ /** Number of the image from which files are being extracted
+ * (1-based). */
int image;
- /** Flags passed to to wimlib_extract_image() */
+ /** Extraction flags being used. */
int extract_flags;
- /** Full path to the WIM file being extracted. */
+ /** Full path to the WIM file from which files are being
+ * extracted, or @c NULL if the WIMStruct has no associated
+ * on-disk file. */
const wimlib_tchar *wimfile_name;
- /** Name of the image being extracted. */
+ /** Name of the image from which files are being extracted, or
+ * the empty string if the image is unnamed. */
const wimlib_tchar *image_name;
- /** Directory or NTFS volume to which the image is being
- * extracted. */
+ /** Path to the directory or NTFS volume to which the files are
+ * being extracted. */
const wimlib_tchar *target;
/** Reserved. */
- const wimlib_tchar *cur_path;
+ const wimlib_tchar *reserved;
/** Number of bytes of uncompressed data that will be extracted.
- * Takes into account hard links (they are not counted for each
- * link.) */
+ * If a file has multiple names (hard links), its size (or
+ * sizes, in the case of named data streams) is only counted one
+ * time. For "reparse points" and symbolic links, the size to
+ * be extracted is the size of the reparse data buffer.
+ *
+ * This number will stay constant throughout the extraction. */
uint64_t total_bytes;
- /** Number of bytes that have been written so far. Will be 0
- * initially, and equal to @p total_bytes at the end. */
+ /** Number of bytes of uncompressed data that have been
+ * extracted so far. This initially be 0 and will equal to @p
+ * total_bytes at the end of the extraction. */
uint64_t completed_bytes;
- /** Number of streams that will be extracted. This may more or
- * less than the number of "files" to be extracted due to
- * special cases (hard links, symbolic links, and alternate data
- * streams.) */
+ /** Number of (not necessarily unique) streams that will be
+ * extracted. This may be more or less than the number of
+ * "files" to be extracted due to hard links as well as
+ * potentially multiple streams per file (named data streams).
+ * A "stream" may be the default contents of a file, a named
+ * data stream, or a reparse data buffer. */
uint64_t num_streams;
- /** Path to the root dentry within the WIM for the tree that is
- * being extracted. Will be the empty string when extracting a
- * full image, or when extracting a set of paths using
- * wimlib_extract_paths() or wimlib_extract_pathlist(). */
+ /** When extracting files using wimlib_extract_files(), this
+ * will be the path within the WIM image to the file or
+ * directory tree currently being extracted. Otherwise, this
+ * will be the empty string. */
const wimlib_tchar *extract_root_wim_source_path;
/** Currently only used for
* ::WIMLIB_PROGRESS_MSG_EXTRACT_SPWM_PART_BEGIN. */
-
unsigned part_number;
/** Currently only used for
WIMLIB_ERR_WIM_IS_READONLY,
WIMLIB_ERR_WRITE,
WIMLIB_ERR_XML,
+ WIMLIB_ERR_WIM_IS_ENCRYPTED,
};