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Fix compiling with -Werror.
[icculus/xz.git] / debug / full_flush.c
1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 /// \file       full_flush.c
4 /// \brief      Encode files using LZMA_FULL_FLUSH
5 //
6 //  Author:     Lasse Collin
7 //
8 //  This file has been put into the public domain.
9 //  You can do whatever you want with this file.
10 //
11 ///////////////////////////////////////////////////////////////////////////////
12
13 #include "sysdefs.h"
14 #include "lzma.h"
15 #include <stdio.h>
16
17
18 static lzma_stream strm = LZMA_STREAM_INIT;
19 static FILE *file_in;
20
21
22 static void
23 encode(size_t size, lzma_action action)
24 {
25         static const size_t CHUNK = 64;
26         uint8_t in[CHUNK];
27         uint8_t out[CHUNK];
28         lzma_ret ret;
29
30         do {
31                 if (strm.avail_in == 0 && size > 0) {
32                         const size_t amount = my_min(size, CHUNK);
33                         strm.avail_in = fread(in, 1, amount, file_in);
34                         strm.next_in = in;
35                         size -= amount; // Intentionally not using avail_in.
36                 }
37
38                 strm.next_out = out;
39                 strm.avail_out = CHUNK;
40
41                 ret = lzma_code(&strm, size == 0 ? action : LZMA_RUN);
42
43                 if (ret != LZMA_OK && ret != LZMA_STREAM_END) {
44                         fprintf(stderr, "%s:%u: %s: ret == %d\n",
45                                         __FILE__, __LINE__, __func__, ret);
46                         exit(1);
47                 }
48
49                 fwrite(out, 1, CHUNK - strm.avail_out, stdout);
50
51         } while (size > 0 || strm.avail_out == 0);
52
53         if ((action == LZMA_RUN && ret != LZMA_OK)
54                         || (action != LZMA_RUN && ret != LZMA_STREAM_END)) {
55                 fprintf(stderr, "%s:%u: %s: ret == %d\n",
56                                 __FILE__, __LINE__, __func__, ret);
57                 exit(1);
58         }
59 }
60
61
62 int
63 main(int argc, char **argv)
64 {
65         file_in = argc > 1 ? fopen(argv[1], "rb") : stdin;
66
67
68         // Config
69         lzma_options_lzma opt_lzma;
70         if (lzma_lzma_preset(&opt_lzma, 1)) {
71                 fprintf(stderr, "preset failed\n");
72                 exit(1);
73         }
74         lzma_filter filters[LZMA_FILTERS_MAX + 1];
75         filters[0].id = LZMA_FILTER_LZMA2;
76         filters[0].options = &opt_lzma;
77         filters[1].id = LZMA_VLI_UNKNOWN;
78
79         // Init
80         if (lzma_stream_encoder(&strm, filters, LZMA_CHECK_CRC32) != LZMA_OK) {
81                 fprintf(stderr, "init failed\n");
82                 exit(1);
83         }
84
85 //      if (lzma_easy_encoder(&strm, 1)) {
86 //              fprintf(stderr, "init failed\n");
87 //              exit(1);
88 //      }
89
90         // Encoding
91         encode(0, LZMA_FULL_FLUSH);
92         encode(6, LZMA_FULL_FLUSH);
93         encode(0, LZMA_FULL_FLUSH);
94         encode(7, LZMA_FULL_FLUSH);
95         encode(0, LZMA_FULL_FLUSH);
96         encode(0, LZMA_FINISH);
97
98         // Clean up
99         lzma_end(&strm);
100
101         return 0;
102 }