1 // Tencent is pleased to support the open source community by making RapidJSON available.
2 //
3 // Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
4 //
5 // Licensed under the MIT License (the "License"); you may not use this file except
6 // in compliance with the License. You may obtain a copy of the License at
7 //
8 // http://opensource.org/licenses/MIT
9 //
10 // Unless required by applicable law or agreed to in writing, software distributed
11 // under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
12 // CONDITIONS OF ANY KIND, either express or implied. See the License for the
13 // specific language governing permissions and limitations under the License.
14
15 #include "perftest.h"
16
17 // This file is for giving the performance characteristics of the platform (compiler/OS/CPU).
18
19 #if TEST_PLATFORM
20
21 #include <cmath>
22 #include <fcntl.h>
23
24 // Windows
25 #ifdef _WIN32
26 #include <windows.h>
27 #endif
28
29 // UNIX
30 #if defined(unix) || defined(__unix__) || defined(__unix)
31 #include <unistd.h>
32 #ifdef _POSIX_MAPPED_FILES
33 #include <sys/mman.h>
34 #endif
35 #endif
36
37 class Platform : public PerfTest {
38 public:
SetUp()39 virtual void SetUp() {
40 PerfTest::SetUp();
41
42 // temp buffer for testing
43 temp_ = (char *)malloc(length_ + 1);
44 memcpy(temp_, json_, length_);
45 checkSum_ = CheckSum();
46 }
47
CheckSum()48 char CheckSum() {
49 char c = 0;
50 for (size_t i = 0; i < length_; ++i)
51 c += temp_[i];
52 return c;
53 }
54
TearDown()55 virtual void TearDown() {
56 PerfTest::TearDown();
57 free(temp_);
58 }
59
60 protected:
61 char *temp_;
62 char checkSum_;
63 };
64
TEST_F(Platform,CheckSum)65 TEST_F(Platform, CheckSum) {
66 for (int i = 0; i < kTrialCount; i++)
67 EXPECT_EQ(checkSum_, CheckSum());
68 }
69
TEST_F(Platform,strlen)70 TEST_F(Platform, strlen) {
71 for (int i = 0; i < kTrialCount; i++) {
72 size_t l = strlen(json_);
73 EXPECT_EQ(length_, l);
74 }
75 }
76
TEST_F(Platform,memcmp)77 TEST_F(Platform, memcmp) {
78 for (int i = 0; i < kTrialCount; i++) {
79 EXPECT_EQ(0, memcmp(temp_, json_, length_));
80 }
81 }
82
TEST_F(Platform,pow)83 TEST_F(Platform, pow) {
84 double sum = 0;
85 for (int i = 0; i < kTrialCount * kTrialCount; i++)
86 sum += pow(10.0, i & 255);
87 EXPECT_GT(sum, 0.0);
88 }
89
TEST_F(Platform,Whitespace_strlen)90 TEST_F(Platform, Whitespace_strlen) {
91 for (int i = 0; i < kTrialCount; i++) {
92 size_t l = strlen(whitespace_);
93 EXPECT_GT(l, whitespace_length_);
94 }
95 }
96
TEST_F(Platform,Whitespace_strspn)97 TEST_F(Platform, Whitespace_strspn) {
98 for (int i = 0; i < kTrialCount; i++) {
99 size_t l = strspn(whitespace_, " \n\r\t");
100 EXPECT_EQ(whitespace_length_, l);
101 }
102 }
103
TEST_F(Platform,fread)104 TEST_F(Platform, fread) {
105 for (int i = 0; i < kTrialCount; i++) {
106 FILE *fp = fopen(filename_, "rb");
107 ASSERT_EQ(length_, fread(temp_, 1, length_, fp));
108 EXPECT_EQ(checkSum_, CheckSum());
109 fclose(fp);
110 }
111 }
112
113 #ifdef _MSC_VER
TEST_F(Platform,read)114 TEST_F(Platform, read) {
115 for (int i = 0; i < kTrialCount; i++) {
116 int fd = _open(filename_, _O_BINARY | _O_RDONLY);
117 ASSERT_NE(-1, fd);
118 ASSERT_EQ(length_, _read(fd, temp_, length_));
119 EXPECT_EQ(checkSum_, CheckSum());
120 _close(fd);
121 }
122 }
123 #else
TEST_F(Platform,read)124 TEST_F(Platform, read) {
125 for (int i = 0; i < kTrialCount; i++) {
126 int fd = open(filename_, O_RDONLY);
127 ASSERT_NE(-1, fd);
128 ASSERT_EQ(length_, read(fd, temp_, length_));
129 EXPECT_EQ(checkSum_, CheckSum());
130 close(fd);
131 }
132 }
133 #endif
134
135 #ifdef _WIN32
TEST_F(Platform,MapViewOfFile)136 TEST_F(Platform, MapViewOfFile) {
137 for (int i = 0; i < kTrialCount; i++) {
138 HANDLE file = CreateFile(filename_, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
139 ASSERT_NE(INVALID_HANDLE_VALUE, file);
140 HANDLE mapObject = CreateFileMapping(file, NULL, PAGE_READONLY, 0, length_, NULL);
141 ASSERT_NE(INVALID_HANDLE_VALUE, mapObject);
142 void *p = MapViewOfFile(mapObject, FILE_MAP_READ, 0, 0, length_);
143 ASSERT_TRUE(p != NULL);
144 EXPECT_EQ(checkSum_, CheckSum());
145 ASSERT_TRUE(UnmapViewOfFile(p) == TRUE);
146 ASSERT_TRUE(CloseHandle(mapObject) == TRUE);
147 ASSERT_TRUE(CloseHandle(file) == TRUE);
148 }
149 }
150 #endif
151
152 #ifdef _POSIX_MAPPED_FILES
TEST_F(Platform,mmap)153 TEST_F(Platform, mmap) {
154 for (int i = 0; i < kTrialCount; i++) {
155 int fd = open(filename_, O_RDONLY);
156 ASSERT_NE(-1, fd);
157 void *p = mmap(NULL, length_, PROT_READ, MAP_PRIVATE, fd, 0);
158 ASSERT_TRUE(p != NULL);
159 EXPECT_EQ(checkSum_, CheckSum());
160 munmap(p, length_);
161 close(fd);
162 }
163 }
164 #endif
165
166 #endif // TEST_PLATFORM
167