Add WIMLIB_EXTRACT_FLAG_WIMBOOT

[wimlib] / include / wimlib.h

diff --git a/include/wimlib.h b/include/wimlib.h
index 17d76b5a4664a2a5eef3492546fabc6c85031c5e..31fab04da4b9d5015a9807f2b5d7bd068bf55f5e 100644 (file)
--- a/include/wimlib.h
+++ b/include/wimlib.h
@@ -1227,7 +1227,7 @@ struct wimlib_dir_entry {
 #define WIMLIB_REPARSE_TAG_DFS                 0x8000000A
 #define WIMLIB_REPARSE_TAG_DFSR                        0x80000012
 #define WIMLIB_REPARSE_TAG_FILTER_MANAGER      0x8000000B
-#define WIMLIB_REPARSE_TAG_WIMBOOT             0x80000017
+#define WIMLIB_REPARSE_TAG_WOF                 0x80000017
 #define WIMLIB_REPARSE_TAG_SYMLINK             0xA000000C
        /** If the file is a reparse point (FILE_ATTRIBUTE_DIRECTORY set in the
         * attributes), this will give the reparse tag.  This tells you whether
@@ -1382,7 +1382,20 @@ typedef int (*wimlib_iterate_lookup_table_callback_t)(const struct wimlib_resour
  */
 #define WIMLIB_ADD_FLAG_WINCONFIG              0x00000800
 
-/** Capture image as WIMBoot compatible.  */
+/**
+ * Capture image as WIMBoot compatible.
+ *
+ * Note: this will not by itself change the compression type.  Before writing
+ * the WIM file, it's recommended to also do:
+ *
+ * \code
+ *     wimlib_set_output_compression_type(wim, WIMLIB_COMPRESSION_TYPE_XPRESS);
+ *     wimlib_set_output_chunk_size(wim, 4096);
+ * \endcode
+ *
+ * since that makes access to the data faster (at the cost of a worse
+ * compression ratio compared to the 32768-byte LZX chunks usually used).
+ */
 #define WIMLIB_ADD_FLAG_WIMBOOT                        0x00001000
 
 #define WIMLIB_ADD_IMAGE_FLAG_NTFS             WIMLIB_ADD_FLAG_NTFS
@@ -1560,6 +1573,9 @@ typedef int (*wimlib_iterate_lookup_table_callback_t)(const struct wimlib_resour
  */
 #define WIMLIB_EXTRACT_FLAG_NO_PRESERVE_DIR_STRUCTURE  0x00200000
 
+/** Windows only: Extract files as "pointers" back to the WIM archive.  */
+#define WIMLIB_EXTRACT_FLAG_WIMBOOT                    0x00400000
+
 /** @} */
 /** @ingroup G_mounting_wim_images
  * @{ */
@@ -1979,6 +1995,7 @@ enum wimlib_error_code {
        WIMLIB_ERR_WRITE,
        WIMLIB_ERR_XML,
        WIMLIB_ERR_WIM_IS_ENCRYPTED,
+       WIMLIB_ERR_WIMBOOT,
 };
 
 
@@ -2408,6 +2425,9 @@ wimlib_extract_files(WIMStruct *wim,
  *     names is not supported --- on Windows, this occurs if the target volume
  *     does not support short names, while on non-Windows, this occurs if
  *     ::WIMLIB_EXTRACT_FLAG_NTFS was not specified in @p extract_flags.
+ * @retval ::WIMLIB_ERR_WIMBOOT
+ *     ::WIMLIB_EXTRACT_FLAG_WIMBOOT was specified in @p extract_flags, but
+ *     there was a problem creating WIMBoot pointer files.
  * @retval ::WIMLIB_ERR_WRITE
  *     Failed to write data to a file being extracted.
  */