Adding upstream version 5.4.1.upstream/5.4.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/src/liblzma/delta/delta_private.h b/src/liblzma/delta/delta_private.h
new file mode 100644
index 0000000..0d6cb38
--- /dev/null
+++ b/src/liblzma/delta/delta_private.h
@@ -0,0 +1,37 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       delta_private.h
+/// \brief      Private common stuff for Delta encoder and decoder
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef LZMA_DELTA_PRIVATE_H
+#define LZMA_DELTA_PRIVATE_H
+
+#include "delta_common.h"
+
+typedef struct {
+	/// Next coder in the chain
+	lzma_next_coder next;
+
+	/// Delta distance
+	size_t distance;
+
+	/// Position in history[]
+	uint8_t pos;
+
+	/// Buffer to hold history of the original data
+	uint8_t history[LZMA_DELTA_DIST_MAX];
+} lzma_delta_coder;
+
+
+extern lzma_ret lzma_delta_coder_init(
+		lzma_next_coder *next, const lzma_allocator *allocator,
+		const lzma_filter_info *filters);
+
+#endif