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| 1 // Copyright 2014 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 "mojo/edk/system/shared_buffer_dispatcher.h" | |
| 6 | |
| 7 #include <limits> | |
| 8 | |
| 9 #include "base/macros.h" | |
| 10 #include "base/memory/ref_counted.h" | |
| 11 #include "mojo/edk/embedder/platform_shared_buffer.h" | |
| 12 #include "mojo/edk/embedder/simple_platform_support.h" | |
| 13 #include "mojo/edk/system/dispatcher.h" | |
| 14 #include "testing/gtest/include/gtest/gtest.h" | |
| 15 | |
| 16 namespace mojo { | |
| 17 namespace system { | |
| 18 namespace { | |
| 19 | |
| 20 // NOTE(vtl): There's currently not much to test for in | |
| 21 // |SharedBufferDispatcher::ValidateCreateOptions()|, but the tests should be | |
| 22 // expanded if/when options are added, so I've kept the general form of the | |
| 23 // tests from data_pipe_unittest.cc. | |
| 24 | |
| 25 const uint32_t kSizeOfCreateOptions = sizeof(MojoCreateSharedBufferOptions); | |
| 26 | |
| 27 // Does a cursory sanity check of |validated_options|. Calls | |
| 28 // |ValidateCreateOptions()| on already-validated options. The validated options | |
| 29 // should be valid, and the revalidated copy should be the same. | |
| 30 void RevalidateCreateOptions( | |
| 31 const MojoCreateSharedBufferOptions& validated_options) { | |
| 32 EXPECT_EQ(kSizeOfCreateOptions, validated_options.struct_size); | |
| 33 // Nothing to check for flags. | |
| 34 | |
| 35 MojoCreateSharedBufferOptions revalidated_options = {}; | |
| 36 EXPECT_EQ(MOJO_RESULT_OK, | |
| 37 SharedBufferDispatcher::ValidateCreateOptions( | |
| 38 MakeUserPointer(&validated_options), &revalidated_options)); | |
| 39 EXPECT_EQ(validated_options.struct_size, revalidated_options.struct_size); | |
| 40 EXPECT_EQ(validated_options.flags, revalidated_options.flags); | |
| 41 } | |
| 42 | |
| 43 class SharedBufferDispatcherTest : public testing::Test { | |
| 44 public: | |
| 45 SharedBufferDispatcherTest() {} | |
| 46 ~SharedBufferDispatcherTest() override {} | |
| 47 | |
| 48 embedder::PlatformSupport* platform_support() { return &platform_support_; } | |
| 49 | |
| 50 private: | |
| 51 embedder::SimplePlatformSupport platform_support_; | |
| 52 | |
| 53 DISALLOW_COPY_AND_ASSIGN(SharedBufferDispatcherTest); | |
| 54 }; | |
| 55 | |
| 56 // Tests valid inputs to |ValidateCreateOptions()|. | |
| 57 TEST_F(SharedBufferDispatcherTest, ValidateCreateOptionsValid) { | |
| 58 // Default options. | |
| 59 { | |
| 60 MojoCreateSharedBufferOptions validated_options = {}; | |
| 61 EXPECT_EQ(MOJO_RESULT_OK, SharedBufferDispatcher::ValidateCreateOptions( | |
| 62 NullUserPointer(), &validated_options)); | |
| 63 RevalidateCreateOptions(validated_options); | |
| 64 } | |
| 65 | |
| 66 // Different flags. | |
| 67 MojoCreateSharedBufferOptionsFlags flags_values[] = { | |
| 68 MOJO_CREATE_SHARED_BUFFER_OPTIONS_FLAG_NONE}; | |
| 69 for (size_t i = 0; i < arraysize(flags_values); i++) { | |
| 70 const MojoCreateSharedBufferOptionsFlags flags = flags_values[i]; | |
| 71 | |
| 72 // Different capacities (size 1). | |
| 73 for (uint32_t capacity = 1; capacity <= 100 * 1000 * 1000; capacity *= 10) { | |
| 74 MojoCreateSharedBufferOptions options = { | |
| 75 kSizeOfCreateOptions, // |struct_size|. | |
| 76 flags // |flags|. | |
| 77 }; | |
| 78 MojoCreateSharedBufferOptions validated_options = {}; | |
| 79 EXPECT_EQ(MOJO_RESULT_OK, | |
| 80 SharedBufferDispatcher::ValidateCreateOptions( | |
| 81 MakeUserPointer(&options), &validated_options)) | |
| 82 << capacity; | |
| 83 RevalidateCreateOptions(validated_options); | |
| 84 EXPECT_EQ(options.flags, validated_options.flags); | |
| 85 } | |
| 86 } | |
| 87 } | |
| 88 | |
| 89 TEST_F(SharedBufferDispatcherTest, ValidateCreateOptionsInvalid) { | |
| 90 // Invalid |struct_size|. | |
| 91 { | |
| 92 MojoCreateSharedBufferOptions options = { | |
| 93 1, // |struct_size|. | |
| 94 MOJO_CREATE_SHARED_BUFFER_OPTIONS_FLAG_NONE // |flags|. | |
| 95 }; | |
| 96 MojoCreateSharedBufferOptions unused; | |
| 97 EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, | |
| 98 SharedBufferDispatcher::ValidateCreateOptions( | |
| 99 MakeUserPointer(&options), &unused)); | |
| 100 } | |
| 101 | |
| 102 // Unknown |flags|. | |
| 103 { | |
| 104 MojoCreateSharedBufferOptions options = { | |
| 105 kSizeOfCreateOptions, // |struct_size|. | |
| 106 ~0u // |flags|. | |
| 107 }; | |
| 108 MojoCreateSharedBufferOptions unused; | |
| 109 EXPECT_EQ(MOJO_RESULT_UNIMPLEMENTED, | |
| 110 SharedBufferDispatcher::ValidateCreateOptions( | |
| 111 MakeUserPointer(&options), &unused)); | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 TEST_F(SharedBufferDispatcherTest, CreateAndMapBuffer) { | |
| 116 scoped_refptr<SharedBufferDispatcher> dispatcher; | |
| 117 EXPECT_EQ(MOJO_RESULT_OK, SharedBufferDispatcher::Create( | |
| 118 platform_support(), | |
| 119 SharedBufferDispatcher::kDefaultCreateOptions, | |
| 120 100, &dispatcher)); | |
| 121 ASSERT_TRUE(dispatcher); | |
| 122 EXPECT_EQ(Dispatcher::kTypeSharedBuffer, dispatcher->GetType()); | |
| 123 | |
| 124 // Make a couple of mappings. | |
| 125 scoped_ptr<embedder::PlatformSharedBufferMapping> mapping1; | |
| 126 EXPECT_EQ(MOJO_RESULT_OK, dispatcher->MapBuffer( | |
| 127 0, 100, MOJO_MAP_BUFFER_FLAG_NONE, &mapping1)); | |
| 128 ASSERT_TRUE(mapping1); | |
| 129 ASSERT_TRUE(mapping1->GetBase()); | |
| 130 EXPECT_EQ(100u, mapping1->GetLength()); | |
| 131 // Write something. | |
| 132 static_cast<char*>(mapping1->GetBase())[50] = 'x'; | |
| 133 | |
| 134 scoped_ptr<embedder::PlatformSharedBufferMapping> mapping2; | |
| 135 EXPECT_EQ(MOJO_RESULT_OK, dispatcher->MapBuffer( | |
| 136 50, 50, MOJO_MAP_BUFFER_FLAG_NONE, &mapping2)); | |
| 137 ASSERT_TRUE(mapping2); | |
| 138 ASSERT_TRUE(mapping2->GetBase()); | |
| 139 EXPECT_EQ(50u, mapping2->GetLength()); | |
| 140 EXPECT_EQ('x', static_cast<char*>(mapping2->GetBase())[0]); | |
| 141 | |
| 142 EXPECT_EQ(MOJO_RESULT_OK, dispatcher->Close()); | |
| 143 | |
| 144 // Check that we can still read/write to mappings after the dispatcher has | |
| 145 // gone away. | |
| 146 static_cast<char*>(mapping2->GetBase())[1] = 'y'; | |
| 147 EXPECT_EQ('y', static_cast<char*>(mapping1->GetBase())[51]); | |
| 148 } | |
| 149 | |
| 150 TEST_F(SharedBufferDispatcherTest, DuplicateBufferHandle) { | |
| 151 scoped_refptr<SharedBufferDispatcher> dispatcher1; | |
| 152 EXPECT_EQ(MOJO_RESULT_OK, SharedBufferDispatcher::Create( | |
| 153 platform_support(), | |
| 154 SharedBufferDispatcher::kDefaultCreateOptions, | |
| 155 100, &dispatcher1)); | |
| 156 | |
| 157 // Map and write something. | |
| 158 scoped_ptr<embedder::PlatformSharedBufferMapping> mapping; | |
| 159 EXPECT_EQ(MOJO_RESULT_OK, dispatcher1->MapBuffer( | |
| 160 0, 100, MOJO_MAP_BUFFER_FLAG_NONE, &mapping)); | |
| 161 static_cast<char*>(mapping->GetBase())[0] = 'x'; | |
| 162 mapping.reset(); | |
| 163 | |
| 164 // Duplicate |dispatcher1| and then close it. | |
| 165 scoped_refptr<Dispatcher> dispatcher2; | |
| 166 EXPECT_EQ(MOJO_RESULT_OK, dispatcher1->DuplicateBufferHandle( | |
| 167 NullUserPointer(), &dispatcher2)); | |
| 168 ASSERT_TRUE(dispatcher2); | |
| 169 EXPECT_EQ(Dispatcher::kTypeSharedBuffer, dispatcher2->GetType()); | |
| 170 | |
| 171 EXPECT_EQ(MOJO_RESULT_OK, dispatcher1->Close()); | |
| 172 | |
| 173 // Map |dispatcher2| and read something. | |
| 174 EXPECT_EQ(MOJO_RESULT_OK, dispatcher2->MapBuffer( | |
| 175 0, 100, MOJO_MAP_BUFFER_FLAG_NONE, &mapping)); | |
| 176 EXPECT_EQ('x', static_cast<char*>(mapping->GetBase())[0]); | |
| 177 | |
| 178 EXPECT_EQ(MOJO_RESULT_OK, dispatcher2->Close()); | |
| 179 } | |
| 180 | |
| 181 TEST_F(SharedBufferDispatcherTest, DuplicateBufferHandleOptionsValid) { | |
| 182 scoped_refptr<SharedBufferDispatcher> dispatcher1; | |
| 183 EXPECT_EQ(MOJO_RESULT_OK, SharedBufferDispatcher::Create( | |
| 184 platform_support(), | |
| 185 SharedBufferDispatcher::kDefaultCreateOptions, | |
| 186 100, &dispatcher1)); | |
| 187 | |
| 188 MojoDuplicateBufferHandleOptions options[] = { | |
| 189 {sizeof(MojoDuplicateBufferHandleOptions), | |
| 190 MOJO_DUPLICATE_BUFFER_HANDLE_OPTIONS_FLAG_NONE}, | |
| 191 {sizeof(MojoDuplicateBufferHandleOptionsFlags), ~0u}}; | |
| 192 for (size_t i = 0; i < arraysize(options); i++) { | |
| 193 scoped_refptr<Dispatcher> dispatcher2; | |
| 194 EXPECT_EQ(MOJO_RESULT_OK, dispatcher1->DuplicateBufferHandle( | |
| 195 MakeUserPointer(&options[i]), &dispatcher2)); | |
| 196 ASSERT_TRUE(dispatcher2); | |
| 197 EXPECT_EQ(Dispatcher::kTypeSharedBuffer, dispatcher2->GetType()); | |
| 198 EXPECT_EQ(MOJO_RESULT_OK, dispatcher2->Close()); | |
| 199 } | |
| 200 | |
| 201 EXPECT_EQ(MOJO_RESULT_OK, dispatcher1->Close()); | |
| 202 } | |
| 203 | |
| 204 TEST_F(SharedBufferDispatcherTest, DuplicateBufferHandleOptionsInvalid) { | |
| 205 scoped_refptr<SharedBufferDispatcher> dispatcher1; | |
| 206 EXPECT_EQ(MOJO_RESULT_OK, SharedBufferDispatcher::Create( | |
| 207 platform_support(), | |
| 208 SharedBufferDispatcher::kDefaultCreateOptions, | |
| 209 100, &dispatcher1)); | |
| 210 | |
| 211 // Invalid |struct_size|. | |
| 212 { | |
| 213 MojoDuplicateBufferHandleOptions options = { | |
| 214 1u, MOJO_DUPLICATE_BUFFER_HANDLE_OPTIONS_FLAG_NONE}; | |
| 215 scoped_refptr<Dispatcher> dispatcher2; | |
| 216 EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, | |
| 217 dispatcher1->DuplicateBufferHandle(MakeUserPointer(&options), | |
| 218 &dispatcher2)); | |
| 219 EXPECT_FALSE(dispatcher2); | |
| 220 } | |
| 221 | |
| 222 // Unknown |flags|. | |
| 223 { | |
| 224 MojoDuplicateBufferHandleOptions options = { | |
| 225 sizeof(MojoDuplicateBufferHandleOptions), ~0u}; | |
| 226 scoped_refptr<Dispatcher> dispatcher2; | |
| 227 EXPECT_EQ(MOJO_RESULT_UNIMPLEMENTED, | |
| 228 dispatcher1->DuplicateBufferHandle(MakeUserPointer(&options), | |
| 229 &dispatcher2)); | |
| 230 EXPECT_FALSE(dispatcher2); | |
| 231 } | |
| 232 | |
| 233 EXPECT_EQ(MOJO_RESULT_OK, dispatcher1->Close()); | |
| 234 } | |
| 235 | |
| 236 TEST_F(SharedBufferDispatcherTest, CreateInvalidNumBytes) { | |
| 237 // Size too big. | |
| 238 scoped_refptr<SharedBufferDispatcher> dispatcher; | |
| 239 EXPECT_EQ( | |
| 240 MOJO_RESULT_RESOURCE_EXHAUSTED, | |
| 241 SharedBufferDispatcher::Create( | |
| 242 platform_support(), SharedBufferDispatcher::kDefaultCreateOptions, | |
| 243 std::numeric_limits<uint64_t>::max(), &dispatcher)); | |
| 244 EXPECT_FALSE(dispatcher); | |
| 245 | |
| 246 // Zero size. | |
| 247 EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, | |
| 248 SharedBufferDispatcher::Create( | |
| 249 platform_support(), | |
| 250 SharedBufferDispatcher::kDefaultCreateOptions, 0, &dispatcher)); | |
| 251 EXPECT_FALSE(dispatcher); | |
| 252 } | |
| 253 | |
| 254 TEST_F(SharedBufferDispatcherTest, MapBufferInvalidArguments) { | |
| 255 scoped_refptr<SharedBufferDispatcher> dispatcher; | |
| 256 EXPECT_EQ(MOJO_RESULT_OK, SharedBufferDispatcher::Create( | |
| 257 platform_support(), | |
| 258 SharedBufferDispatcher::kDefaultCreateOptions, | |
| 259 100, &dispatcher)); | |
| 260 | |
| 261 scoped_ptr<embedder::PlatformSharedBufferMapping> mapping; | |
| 262 EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, | |
| 263 dispatcher->MapBuffer(0, 101, MOJO_MAP_BUFFER_FLAG_NONE, &mapping)); | |
| 264 EXPECT_FALSE(mapping); | |
| 265 | |
| 266 EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, | |
| 267 dispatcher->MapBuffer(1, 100, MOJO_MAP_BUFFER_FLAG_NONE, &mapping)); | |
| 268 EXPECT_FALSE(mapping); | |
| 269 | |
| 270 EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, | |
| 271 dispatcher->MapBuffer(0, 0, MOJO_MAP_BUFFER_FLAG_NONE, &mapping)); | |
| 272 EXPECT_FALSE(mapping); | |
| 273 | |
| 274 EXPECT_EQ(MOJO_RESULT_OK, dispatcher->Close()); | |
| 275 } | |
| 276 | |
| 277 } // namespace | |
| 278 } // namespace system | |
| 279 } // namespace mojo | |
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Chromium Code Reviews
Issue 814543006:
Move //mojo/{public, edk} underneath //third_party (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master