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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/file_descriptor_shuffle.h" | |
| 6 #include "testing/gtest/include/gtest/gtest.h" | |
| 7 | |
| 8 namespace { | |
| 9 | |
| 10 // 'Duplicated' file descriptors start at this number | |
| 11 const int kDuplicateBase = 1000; | |
| 12 | |
| 13 } // namespace | |
| 14 | |
| 15 namespace base { | |
| 16 | |
| 17 struct Action { | |
| 18 enum Type { | |
| 19 CLOSE, | |
| 20 MOVE, | |
| 21 DUPLICATE, | |
| 22 }; | |
| 23 | |
| 24 Action(Type in_type, int in_fd1, int in_fd2 = -1) | |
| 25 : type(in_type), | |
| 26 fd1(in_fd1), | |
| 27 fd2(in_fd2) { | |
| 28 } | |
| 29 | |
| 30 bool operator==(const Action& other) const { | |
| 31 return other.type == type && | |
| 32 other.fd1 == fd1 && | |
| 33 other.fd2 == fd2; | |
| 34 } | |
| 35 | |
| 36 Type type; | |
| 37 int fd1; | |
| 38 int fd2; | |
| 39 }; | |
| 40 | |
| 41 class InjectionTracer : public InjectionDelegate { | |
| 42 public: | |
| 43 InjectionTracer() | |
| 44 : next_duplicate_(kDuplicateBase) { | |
| 45 } | |
| 46 | |
| 47 virtual bool Duplicate(int* result, int fd) OVERRIDE { | |
| 48 *result = next_duplicate_++; | |
| 49 actions_.push_back(Action(Action::DUPLICATE, *result, fd)); | |
| 50 return true; | |
| 51 } | |
| 52 | |
| 53 virtual bool Move(int src, int dest) OVERRIDE { | |
| 54 actions_.push_back(Action(Action::MOVE, src, dest)); | |
| 55 return true; | |
| 56 } | |
| 57 | |
| 58 virtual void Close(int fd) OVERRIDE { | |
| 59 actions_.push_back(Action(Action::CLOSE, fd)); | |
| 60 } | |
| 61 | |
| 62 const std::vector<Action>& actions() const { return actions_; } | |
| 63 | |
| 64 private: | |
| 65 int next_duplicate_; | |
| 66 std::vector<Action> actions_; | |
| 67 }; | |
| 68 | |
| 69 TEST(FileDescriptorShuffleTest, Empty) { | |
| 70 InjectiveMultimap map; | |
| 71 InjectionTracer tracer; | |
| 72 | |
| 73 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 74 EXPECT_EQ(0u, tracer.actions().size()); | |
| 75 } | |
| 76 | |
| 77 TEST(FileDescriptorShuffleTest, Noop) { | |
| 78 InjectiveMultimap map; | |
| 79 InjectionTracer tracer; | |
| 80 map.push_back(InjectionArc(0, 0, false)); | |
| 81 | |
| 82 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 83 EXPECT_EQ(0u, tracer.actions().size()); | |
| 84 } | |
| 85 | |
| 86 TEST(FileDescriptorShuffleTest, NoopAndClose) { | |
| 87 InjectiveMultimap map; | |
| 88 InjectionTracer tracer; | |
| 89 map.push_back(InjectionArc(0, 0, true)); | |
| 90 | |
| 91 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 92 EXPECT_EQ(0u, tracer.actions().size()); | |
| 93 } | |
| 94 | |
| 95 TEST(FileDescriptorShuffleTest, Simple1) { | |
| 96 InjectiveMultimap map; | |
| 97 InjectionTracer tracer; | |
| 98 map.push_back(InjectionArc(0, 1, false)); | |
| 99 | |
| 100 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 101 ASSERT_EQ(1u, tracer.actions().size()); | |
| 102 EXPECT_TRUE(tracer.actions()[0] == Action(Action::MOVE, 0, 1)); | |
| 103 } | |
| 104 | |
| 105 TEST(FileDescriptorShuffleTest, Simple2) { | |
| 106 InjectiveMultimap map; | |
| 107 InjectionTracer tracer; | |
| 108 map.push_back(InjectionArc(0, 1, false)); | |
| 109 map.push_back(InjectionArc(2, 3, false)); | |
| 110 | |
| 111 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 112 ASSERT_EQ(2u, tracer.actions().size()); | |
| 113 EXPECT_TRUE(tracer.actions()[0] == Action(Action::MOVE, 0, 1)); | |
| 114 EXPECT_TRUE(tracer.actions()[1] == Action(Action::MOVE, 2, 3)); | |
| 115 } | |
| 116 | |
| 117 TEST(FileDescriptorShuffleTest, Simple3) { | |
| 118 InjectiveMultimap map; | |
| 119 InjectionTracer tracer; | |
| 120 map.push_back(InjectionArc(0, 1, true)); | |
| 121 | |
| 122 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 123 ASSERT_EQ(2u, tracer.actions().size()); | |
| 124 EXPECT_TRUE(tracer.actions()[0] == Action(Action::MOVE, 0, 1)); | |
| 125 EXPECT_TRUE(tracer.actions()[1] == Action(Action::CLOSE, 0)); | |
| 126 } | |
| 127 | |
| 128 TEST(FileDescriptorShuffleTest, Simple4) { | |
| 129 InjectiveMultimap map; | |
| 130 InjectionTracer tracer; | |
| 131 map.push_back(InjectionArc(10, 0, true)); | |
| 132 map.push_back(InjectionArc(1, 1, true)); | |
| 133 | |
| 134 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 135 ASSERT_EQ(2u, tracer.actions().size()); | |
| 136 EXPECT_TRUE(tracer.actions()[0] == Action(Action::MOVE, 10, 0)); | |
| 137 EXPECT_TRUE(tracer.actions()[1] == Action(Action::CLOSE, 10)); | |
| 138 } | |
| 139 | |
| 140 TEST(FileDescriptorShuffleTest, Cycle) { | |
| 141 InjectiveMultimap map; | |
| 142 InjectionTracer tracer; | |
| 143 map.push_back(InjectionArc(0, 1, false)); | |
| 144 map.push_back(InjectionArc(1, 0, false)); | |
| 145 | |
| 146 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 147 ASSERT_EQ(4u, tracer.actions().size()); | |
| 148 EXPECT_TRUE(tracer.actions()[0] == | |
| 149 Action(Action::DUPLICATE, kDuplicateBase, 1)); | |
| 150 EXPECT_TRUE(tracer.actions()[1] == Action(Action::MOVE, 0, 1)); | |
| 151 EXPECT_TRUE(tracer.actions()[2] == Action(Action::MOVE, kDuplicateBase, 0)); | |
| 152 EXPECT_TRUE(tracer.actions()[3] == Action(Action::CLOSE, kDuplicateBase)); | |
| 153 } | |
| 154 | |
| 155 TEST(FileDescriptorShuffleTest, CycleAndClose1) { | |
| 156 InjectiveMultimap map; | |
| 157 InjectionTracer tracer; | |
| 158 map.push_back(InjectionArc(0, 1, true)); | |
| 159 map.push_back(InjectionArc(1, 0, false)); | |
| 160 | |
| 161 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 162 ASSERT_EQ(4u, tracer.actions().size()); | |
| 163 EXPECT_TRUE(tracer.actions()[0] == | |
| 164 Action(Action::DUPLICATE, kDuplicateBase, 1)); | |
| 165 EXPECT_TRUE(tracer.actions()[1] == Action(Action::MOVE, 0, 1)); | |
| 166 EXPECT_TRUE(tracer.actions()[2] == Action(Action::MOVE, kDuplicateBase, 0)); | |
| 167 EXPECT_TRUE(tracer.actions()[3] == Action(Action::CLOSE, kDuplicateBase)); | |
| 168 } | |
| 169 | |
| 170 TEST(FileDescriptorShuffleTest, CycleAndClose2) { | |
| 171 InjectiveMultimap map; | |
| 172 InjectionTracer tracer; | |
| 173 map.push_back(InjectionArc(0, 1, false)); | |
| 174 map.push_back(InjectionArc(1, 0, true)); | |
| 175 | |
| 176 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 177 ASSERT_EQ(4u, tracer.actions().size()); | |
| 178 EXPECT_TRUE(tracer.actions()[0] == | |
| 179 Action(Action::DUPLICATE, kDuplicateBase, 1)); | |
| 180 EXPECT_TRUE(tracer.actions()[1] == Action(Action::MOVE, 0, 1)); | |
| 181 EXPECT_TRUE(tracer.actions()[2] == Action(Action::MOVE, kDuplicateBase, 0)); | |
| 182 EXPECT_TRUE(tracer.actions()[3] == Action(Action::CLOSE, kDuplicateBase)); | |
| 183 } | |
| 184 | |
| 185 TEST(FileDescriptorShuffleTest, CycleAndClose3) { | |
| 186 InjectiveMultimap map; | |
| 187 InjectionTracer tracer; | |
| 188 map.push_back(InjectionArc(0, 1, true)); | |
| 189 map.push_back(InjectionArc(1, 0, true)); | |
| 190 | |
| 191 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 192 ASSERT_EQ(4u, tracer.actions().size()); | |
| 193 EXPECT_TRUE(tracer.actions()[0] == | |
| 194 Action(Action::DUPLICATE, kDuplicateBase, 1)); | |
| 195 EXPECT_TRUE(tracer.actions()[1] == Action(Action::MOVE, 0, 1)); | |
| 196 EXPECT_TRUE(tracer.actions()[2] == Action(Action::MOVE, kDuplicateBase, 0)); | |
| 197 EXPECT_TRUE(tracer.actions()[3] == Action(Action::CLOSE, kDuplicateBase)); | |
| 198 } | |
| 199 | |
| 200 TEST(FileDescriptorShuffleTest, Fanout) { | |
| 201 InjectiveMultimap map; | |
| 202 InjectionTracer tracer; | |
| 203 map.push_back(InjectionArc(0, 1, false)); | |
| 204 map.push_back(InjectionArc(0, 2, false)); | |
| 205 | |
| 206 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 207 ASSERT_EQ(2u, tracer.actions().size()); | |
| 208 EXPECT_TRUE(tracer.actions()[0] == Action(Action::MOVE, 0, 1)); | |
| 209 EXPECT_TRUE(tracer.actions()[1] == Action(Action::MOVE, 0, 2)); | |
| 210 } | |
| 211 | |
| 212 TEST(FileDescriptorShuffleTest, FanoutAndClose1) { | |
| 213 InjectiveMultimap map; | |
| 214 InjectionTracer tracer; | |
| 215 map.push_back(InjectionArc(0, 1, true)); | |
| 216 map.push_back(InjectionArc(0, 2, false)); | |
| 217 | |
| 218 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 219 ASSERT_EQ(3u, tracer.actions().size()); | |
| 220 EXPECT_TRUE(tracer.actions()[0] == Action(Action::MOVE, 0, 1)); | |
| 221 EXPECT_TRUE(tracer.actions()[1] == Action(Action::MOVE, 0, 2)); | |
| 222 EXPECT_TRUE(tracer.actions()[2] == Action(Action::CLOSE, 0)); | |
| 223 } | |
| 224 | |
| 225 TEST(FileDescriptorShuffleTest, FanoutAndClose2) { | |
| 226 InjectiveMultimap map; | |
| 227 InjectionTracer tracer; | |
| 228 map.push_back(InjectionArc(0, 1, false)); | |
| 229 map.push_back(InjectionArc(0, 2, true)); | |
| 230 | |
| 231 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 232 ASSERT_EQ(3u, tracer.actions().size()); | |
| 233 EXPECT_TRUE(tracer.actions()[0] == Action(Action::MOVE, 0, 1)); | |
| 234 EXPECT_TRUE(tracer.actions()[1] == Action(Action::MOVE, 0, 2)); | |
| 235 EXPECT_TRUE(tracer.actions()[2] == Action(Action::CLOSE, 0)); | |
| 236 } | |
| 237 | |
| 238 TEST(FileDescriptorShuffleTest, FanoutAndClose3) { | |
| 239 InjectiveMultimap map; | |
| 240 InjectionTracer tracer; | |
| 241 map.push_back(InjectionArc(0, 1, true)); | |
| 242 map.push_back(InjectionArc(0, 2, true)); | |
| 243 | |
| 244 EXPECT_TRUE(PerformInjectiveMultimap(map, &tracer)); | |
| 245 ASSERT_EQ(3u, tracer.actions().size()); | |
| 246 EXPECT_TRUE(tracer.actions()[0] == Action(Action::MOVE, 0, 1)); | |
| 247 EXPECT_TRUE(tracer.actions()[1] == Action(Action::MOVE, 0, 2)); | |
| 248 EXPECT_TRUE(tracer.actions()[2] == Action(Action::CLOSE, 0)); | |
| 249 } | |
| 250 | |
| 251 class FailingDelegate : public InjectionDelegate { | |
| 252 public: | |
| 253 virtual bool Duplicate(int* result, int fd) OVERRIDE { | |
| 254 return false; | |
| 255 } | |
| 256 | |
| 257 virtual bool Move(int src, int dest) OVERRIDE { | |
| 258 return false; | |
| 259 } | |
| 260 | |
| 261 virtual void Close(int fd) OVERRIDE {} | |
| 262 }; | |
| 263 | |
| 264 TEST(FileDescriptorShuffleTest, EmptyWithFailure) { | |
| 265 InjectiveMultimap map; | |
| 266 FailingDelegate failing; | |
| 267 | |
| 268 EXPECT_TRUE(PerformInjectiveMultimap(map, &failing)); | |
| 269 } | |
| 270 | |
| 271 TEST(FileDescriptorShuffleTest, NoopWithFailure) { | |
| 272 InjectiveMultimap map; | |
| 273 FailingDelegate failing; | |
| 274 map.push_back(InjectionArc(0, 0, false)); | |
| 275 | |
| 276 EXPECT_TRUE(PerformInjectiveMultimap(map, &failing)); | |
| 277 } | |
| 278 | |
| 279 TEST(FileDescriptorShuffleTest, Simple1WithFailure) { | |
| 280 InjectiveMultimap map; | |
| 281 FailingDelegate failing; | |
| 282 map.push_back(InjectionArc(0, 1, false)); | |
| 283 | |
| 284 EXPECT_FALSE(PerformInjectiveMultimap(map, &failing)); | |
| 285 } | |
| 286 | |
| 287 } // namespace base | |
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Chromium Code Reviews
Issue 10399100:
Move FileDescriptorShuffle to base/posix. This file is very posix-specific. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src