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-rw-r--r--erts/emulator/zlib/deflate.h47
1 files changed, 30 insertions, 17 deletions
diff --git a/erts/emulator/zlib/deflate.h b/erts/emulator/zlib/deflate.h
index 92b037c9d2..ce0299edd1 100644
--- a/erts/emulator/zlib/deflate.h
+++ b/erts/emulator/zlib/deflate.h
@@ -1,10 +1,8 @@
/* deflate.h -- internal compression state
- * Copyright (C) 1995-2004 Jean-loup Gailly
+ * Copyright (C) 1995-2012 Jean-loup Gailly
* For conditions of distribution and use, see copyright notice in zlib.h
*/
-/* %ExternalCopyright% */
-
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the compression library and is
subject to change. Applications should only use zlib.h.
@@ -50,6 +48,9 @@
#define MAX_BITS 15
/* All codes must not exceed MAX_BITS bits */
+#define Buf_size 16
+/* size of bit buffer in bi_buf */
+
#define INIT_STATE 42
#define EXTRA_STATE 69
#define NAME_STATE 73
@@ -103,7 +104,7 @@ typedef struct internal_state {
int wrap; /* bit 0 true for zlib, bit 1 true for gzip */
gz_headerp gzhead; /* gzip header information to write */
uInt gzindex; /* where in extra, name, or comment */
- Byte method; /* STORED (for zip only) or DEFLATED */
+ Byte method; /* can only be DEFLATED */
int last_flush; /* value of flush param for previous deflate call */
/* used by deflate.c: */
@@ -190,7 +191,7 @@ typedef struct internal_state {
int nice_match; /* Stop searching when current match exceeds this */
/* used by trees.c: */
- /* Didn't use ct_data typedef below to supress compiler warning */
+ /* Didn't use ct_data typedef below to suppress compiler warning */
struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */
struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */
@@ -246,7 +247,7 @@ typedef struct internal_state {
ulg opt_len; /* bit length of current block with optimal trees */
ulg static_len; /* bit length of current block with static trees */
uInt matches; /* number of string matches in current block */
- int last_eob_len; /* bit length of EOB code for last block */
+ uInt insert; /* bytes at end of window left to insert */
#ifdef DEBUG
ulg compressed_len; /* total bit length of compressed file mod 2^32 */
@@ -262,6 +263,13 @@ typedef struct internal_state {
* are always zero.
*/
+ ulg high_water;
+ /* High water mark offset in window for initialized bytes -- bytes above
+ * this are set to zero in order to avoid memory check warnings when
+ * longest match routines access bytes past the input. This is then
+ * updated to the new high water mark.
+ */
+
} FAR deflate_state;
/* Output a byte on the stream.
@@ -280,14 +288,19 @@ typedef struct internal_state {
* distances are limited to MAX_DIST instead of WSIZE.
*/
+#define WIN_INIT MAX_MATCH
+/* Number of bytes after end of data in window to initialize in order to avoid
+ memory checker errors from longest match routines */
+
/* in trees.c */
-void _tr_init OF((deflate_state *s));
-int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
-void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len,
- int eof));
-void _tr_align OF((deflate_state *s));
-void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
- int eof));
+void ZLIB_INTERNAL _tr_init OF((deflate_state *s));
+int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
+void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf,
+ ulg stored_len, int last));
+void ZLIB_INTERNAL _tr_flush_bits OF((deflate_state *s));
+void ZLIB_INTERNAL _tr_align OF((deflate_state *s));
+void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
+ ulg stored_len, int last));
#define d_code(dist) \
((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])
@@ -300,11 +313,11 @@ void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len,
/* Inline versions of _tr_tally for speed: */
#if defined(GEN_TREES_H) || !defined(STDC)
- extern uch _length_code[];
- extern uch _dist_code[];
+ extern uch ZLIB_INTERNAL _length_code[];
+ extern uch ZLIB_INTERNAL _dist_code[];
#else
- extern const uch _length_code[];
- extern const uch _dist_code[];
+ extern const uch ZLIB_INTERNAL _length_code[];
+ extern const uch ZLIB_INTERNAL _dist_code[];
#endif
# define _tr_tally_lit(s, c, flush) \