Extract sparse files as sparse

[wimlib] / include / wimlib / apply.h

diff --git a/include/wimlib/apply.h b/include/wimlib/apply.h
index da9087a7b5080883a8735d29af55061c6a5e21c2..9d9c3c97a5210f35400b298ba6293844550bf2b5 100644 (file)
--- a/include/wimlib/apply.h
+++ b/include/wimlib/apply.h
@@ -134,6 +134,21 @@ report_apply_error(struct apply_ctx *ctx, int error_code, const tchar *path)
        return report_error(ctx->progfunc, ctx->progctx, error_code, path);
 }
 
+extern bool
+detect_sparse_region(const void *data, size_t size, size_t *len_ret);
+
+static inline bool
+maybe_detect_sparse_region(const void *data, size_t size, size_t *len_ret,
+                          bool enabled)
+{
+       if (!enabled) {
+               /* Force non-sparse without checking */
+               *len_ret = size;
+               return false;
+       }
+       return detect_sparse_region(data, size, len_ret);
+}
+
 #define inode_first_extraction_dentry(inode)                           \
        ((inode)->i_first_extraction_alias)