Variable chunk size support (currently XPRESS only)

[wimlib] / include / wimlib / wim.h

diff --git a/include/wimlib/wim.h b/include/wimlib/wim.h
index dfd31fa3f9a758720762faa5d922335202169f45..e972950cf720b563013ba78721c337944b29c0a5 100644 (file)
--- a/include/wimlib/wim.h
+++ b/include/wimlib/wim.h
@@ -4,6 +4,7 @@
 #include "wimlib/header.h"
 #include "wimlib/types.h"
 #include "wimlib/file_io.h"
+#include "wimlib/list.h"
 
 struct wim_info;
 struct wim_lookup_table;
@@ -41,6 +42,13 @@ struct WIMStruct {
        /* Temporary field */
        void *private;
 
+       /* LZX compression context for default thread  */
+       struct wimlib_lzx_context *lzx_context;
+
+       struct list_head subwims;
+
+       struct list_head subwim_node;
+
        /* The currently selected image, indexed starting at 1.  If not 0,
         * subtract 1 from this to get the index of the current image in the
         * image_metadata array. */
@@ -58,8 +66,25 @@ struct WIMStruct {
 
        u8 wim_locked : 1;
 
+       u8 guid_set_explicitly : 1;
+
        /* One of WIMLIB_COMPRESSION_TYPE_*, cached from the header flags. */
        u8 compression_type : 2;
+
+       /* Overwritten compression type for wimlib_overwrite() or
+        * wimlib_write().  Can be changed by
+        * wimlib_set_output_compression_type(); otherwise is the same as
+        * compression_type.  */
+       u8 out_compression_type : 2;
+
+       /* Uncompressed size of compressed chunks in this WIM (cached from
+        * header).  */
+       u32 chunk_size;
+
+       /* Overridden chunk size for wimlib_overwrite() or wimlib_write().  Can
+        * be changed by wimlib_set_output_chunk_size(); otherwise is the same
+        * as chunk_size.  */
+       u32 out_chunk_size;
 };
 
 static inline bool wim_is_pipable(const WIMStruct *wim)
@@ -72,11 +97,19 @@ static inline bool wim_has_integrity_table(const WIMStruct *wim)
        return (wim->hdr.integrity.offset != 0);
 }
 
+static inline bool wim_has_metadata(const WIMStruct *wim)
+{
+       return (wim->image_metadata != NULL || wim->hdr.image_count == 0);
+}
+
 extern void
 wim_recalculate_refcnts(WIMStruct *wim);
 
+extern u32
+get_wim_hdr_cflags(int ctype);
+
 extern int
-init_wim_header(struct wim_header *hdr, int ctype);
+init_wim_header(struct wim_header *hdr, int ctype, u32 chunk_size);
 
 extern int
 read_wim_header(const tchar *filename, struct filedes *in_fd,