1 /* LTO IL compression streams.
2 
3    Copyright (C) 2009-2021 Free Software Foundation, Inc.
4    Contributed by Simon Baldwin <simonb@google.com>
5 
6 This file is part of GCC.
7 
8 GCC is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
11 any later version.
12 
13 GCC is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
16 License for more details.
17 
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3.  If not see
20 <http://www.gnu.org/licenses/>.  */
21 
22 #ifndef GCC_LTO_COMPRESS_H
23 #define GCC_LTO_COMPRESS_H
24 
25 struct lto_compression_stream;
26 
27 /* In lto-compress.c.  */
28 extern struct lto_compression_stream
29   *lto_start_compression (void (*callback) (const char *, unsigned, void *),
30 			  void *opaque);
31 extern void lto_compress_block (struct lto_compression_stream *stream,
32 				const char *base, size_t num_chars);
33 extern void lto_end_compression (struct lto_compression_stream *stream);
34 
35 extern struct lto_compression_stream
36   *lto_start_uncompression (void (*callback) (const char *, unsigned, void *),
37 			    void *opaque);
38 extern void lto_uncompress_block (struct lto_compression_stream *stream,
39 				  const char *base, size_t num_chars);
40 extern void lto_end_uncompression (struct lto_compression_stream *stream,
41 				  lto_compression compression);
42 
43 #endif /* GCC_LTO_COMPRESS_H  */
44