648db22b |
1 | /* |
2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
3 | * All rights reserved. |
4 | * |
5 | * This source code is licensed under both the BSD-style license (found in the |
6 | * LICENSE file in the root directory of this source tree) and the GPLv2 (found |
7 | * in the COPYING file in the root directory of this source tree). |
8 | * You may select, at your option, one of the above-listed licenses. |
9 | */ |
10 | |
11 | #include <assert.h> |
12 | #include <stdio.h> |
13 | #include <stddef.h> |
14 | #include <stdlib.h> |
15 | #include <stdint.h> |
16 | #include "datagen.h" |
17 | #include "mem.h" |
18 | #define ZSTD_STATIC_LINKING_ONLY |
19 | #include "zstd.h" |
20 | |
21 | static int |
22 | compress(ZSTD_CCtx* cctx, ZSTD_DCtx* dctx, |
23 | void* dst, size_t dstCapacity, |
24 | void const* src, size_t srcSize, |
25 | void* roundtrip, ZSTD_EndDirective end) |
26 | { |
27 | ZSTD_inBuffer in = {src, srcSize, 0}; |
28 | ZSTD_outBuffer out = {dst, dstCapacity, 0}; |
29 | int ended = 0; |
30 | |
31 | while (!ended && (in.pos < in.size || out.pos > 0)) { |
32 | size_t rc; |
33 | out.pos = 0; |
34 | rc = ZSTD_compressStream2(cctx, &out, &in, end); |
35 | if (ZSTD_isError(rc)) |
36 | return 1; |
37 | if (end == ZSTD_e_end && rc == 0) |
38 | ended = 1; |
39 | { |
40 | ZSTD_inBuffer rtIn = {dst, out.pos, 0}; |
41 | ZSTD_outBuffer rtOut = {roundtrip, srcSize, 0}; |
42 | rc = 1; |
43 | while (rtIn.pos < rtIn.size || rtOut.pos > 0) { |
44 | rtOut.pos = 0; |
45 | rc = ZSTD_decompressStream(dctx, &rtOut, &rtIn); |
46 | if (ZSTD_isError(rc)) { |
47 | fprintf(stderr, "Decompression error: %s\n", ZSTD_getErrorName(rc)); |
48 | return 1; |
49 | } |
50 | if (rc == 0) |
51 | break; |
52 | } |
53 | if (ended && rc != 0) { |
54 | fprintf(stderr, "Frame not finished!\n"); |
55 | return 1; |
56 | } |
57 | } |
58 | } |
59 | |
60 | return 0; |
61 | } |
62 | |
63 | int main(int argc, const char** argv) |
64 | { |
65 | ZSTD_CCtx* cctx = ZSTD_createCCtx(); |
66 | ZSTD_DCtx* dctx = ZSTD_createDCtx(); |
67 | const size_t dataSize = (size_t)1 << 30; |
68 | const size_t outSize = ZSTD_compressBound(dataSize); |
69 | const size_t bufferSize = (size_t)1 << 31; |
70 | char* buffer = (char*)malloc(bufferSize); |
71 | void* out = malloc(outSize); |
72 | void* roundtrip = malloc(dataSize); |
73 | (void)argc; |
74 | (void)argv; |
75 | |
76 | if (!buffer || !out || !roundtrip || !cctx || !dctx) { |
77 | fprintf(stderr, "Allocation failure\n"); |
78 | return 1; |
79 | } |
80 | |
81 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_windowLog, 31))) |
82 | return 1; |
83 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_nbWorkers, 1))) |
84 | return 1; |
85 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_overlapLog, 9))) |
86 | return 1; |
87 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_checksumFlag, 1))) |
88 | return 1; |
89 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_strategy, ZSTD_btopt))) |
90 | return 1; |
91 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_targetLength, 7))) |
92 | return 1; |
93 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_minMatch, 7))) |
94 | return 1; |
95 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_searchLog, 1))) |
96 | return 1; |
97 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_hashLog, 10))) |
98 | return 1; |
99 | if (ZSTD_isError(ZSTD_CCtx_setParameter(cctx, ZSTD_c_chainLog, 10))) |
100 | return 1; |
101 | |
102 | if (ZSTD_isError(ZSTD_DCtx_setParameter(dctx, ZSTD_d_windowLogMax, 31))) |
103 | return 1; |
104 | |
105 | RDG_genBuffer(buffer, bufferSize, 1.0, 0.0, 0xbeefcafe); |
106 | |
107 | /* Compress 30 GB */ |
108 | { |
109 | int i; |
110 | for (i = 0; i < 10; ++i) { |
111 | fprintf(stderr, "Compressing 1 GB\n"); |
112 | if (compress(cctx, dctx, out, outSize, buffer, dataSize, roundtrip, ZSTD_e_continue)) |
113 | return 1; |
114 | } |
115 | } |
116 | fprintf(stderr, "Compressing 1 GB\n"); |
117 | if (compress(cctx, dctx, out, outSize, buffer, dataSize, roundtrip, ZSTD_e_end)) |
118 | return 1; |
119 | |
120 | fprintf(stderr, "Success!\n"); |
121 | |
122 | free(roundtrip); |
123 | free(out); |
124 | free(buffer); |
125 | ZSTD_freeDCtx(dctx); |
126 | ZSTD_freeCCtx(cctx); |
127 | return 0; |
128 | } |