1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <cstdio>
18 #include <cstdlib>
19 #include <cstring>
20 #include <iostream>
21 #include <string>
22 #include <tuple>
23 #include <vector>
24
25 #include <android-base/test_utils.h>
26 #include <benchmark/benchmark.h>
27 #include <ziparchive/zip_archive.h>
28 #include <ziparchive/zip_archive_stream_entry.h>
29 #include <ziparchive/zip_writer.h>
30
CreateZip()31 static TemporaryFile* CreateZip() {
32 TemporaryFile* result = new TemporaryFile;
33 FILE* fp = fdopen(result->fd, "w");
34
35 ZipWriter writer(fp);
36 std::string lastName = "file";
37 for (size_t i = 0; i < 1000; i++) {
38 // Make file names longer and longer.
39 lastName = lastName + std::to_string(i);
40 writer.StartEntry(lastName.c_str(), ZipWriter::kCompress);
41 writer.WriteBytes("helo", 4);
42 writer.FinishEntry();
43 }
44 writer.Finish();
45 fclose(fp);
46
47 return result;
48 }
49
FindEntry_no_match(benchmark::State & state)50 static void FindEntry_no_match(benchmark::State& state) {
51 // Create a temporary zip archive.
52 std::unique_ptr<TemporaryFile> temp_file(CreateZip());
53 ZipArchiveHandle handle;
54 ZipEntry data;
55
56 // In order to walk through all file names in the archive, look for a name
57 // that does not exist in the archive.
58 ZipString name("thisFileNameDoesNotExist");
59
60 // Start the benchmark.
61 while (state.KeepRunning()) {
62 OpenArchive(temp_file->path, &handle);
63 FindEntry(handle, name, &data);
64 CloseArchive(handle);
65 }
66 }
67 BENCHMARK(FindEntry_no_match);
68
Iterate_all_files(benchmark::State & state)69 static void Iterate_all_files(benchmark::State& state) {
70 std::unique_ptr<TemporaryFile> temp_file(CreateZip());
71 ZipArchiveHandle handle;
72 void* iteration_cookie;
73 ZipEntry data;
74 ZipString name;
75
76 while (state.KeepRunning()) {
77 OpenArchive(temp_file->path, &handle);
78 StartIteration(handle, &iteration_cookie, nullptr, nullptr);
79 while (Next(iteration_cookie, &data, &name) == 0) {
80 }
81 EndIteration(iteration_cookie);
82 CloseArchive(handle);
83 }
84 }
85 BENCHMARK(Iterate_all_files);
86
87 BENCHMARK_MAIN();
88