Andreas Huber | 1aec397 | 2016-08-26 09:26:32 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 17 | #include "VectorType.h" |
| 18 | |
Iliyan Malchev | a72e0d2 | 2016-09-09 11:03:08 -0700 | [diff] [blame^] | 19 | #include <hidl-util/Formatter.h> |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 20 | #include <android-base/logging.h> |
| 21 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 22 | namespace android { |
| 23 | |
| 24 | VectorType::VectorType(Type *elementType) |
| 25 | : mElementType(elementType) { |
| 26 | } |
| 27 | |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 28 | void VectorType::addNamedTypesToSet(std::set<const FQName> &set) const { |
| 29 | mElementType->addNamedTypesToSet(set); |
| 30 | } |
| 31 | |
| 32 | std::string VectorType::getCppType(StorageMode mode, |
| 33 | std::string *extra, |
| 34 | bool specifyNamespaces) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 35 | const std::string base = |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 36 | std::string(specifyNamespaces ? "::android::hardware::" : "") |
| 37 | + "hidl_vec<" |
| 38 | + mElementType->getCppType(extra, specifyNamespaces) |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 39 | + ">"; |
| 40 | |
| 41 | CHECK(extra->empty()); |
| 42 | |
| 43 | switch (mode) { |
| 44 | case StorageMode_Stack: |
| 45 | return base; |
| 46 | |
| 47 | case StorageMode_Argument: |
| 48 | return "const " + base + "&"; |
| 49 | |
| 50 | case StorageMode_Result: |
| 51 | return "const " + base + "*"; |
| 52 | } |
| 53 | } |
| 54 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 55 | std::string VectorType::getJavaType() const { |
| 56 | return mElementType->getJavaType() + "[]"; |
| 57 | } |
| 58 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 59 | void VectorType::emitReaderWriter( |
| 60 | Formatter &out, |
| 61 | const std::string &name, |
| 62 | const std::string &parcelObj, |
| 63 | bool parcelObjIsPointer, |
| 64 | bool isReader, |
| 65 | ErrorMode mode) const { |
| 66 | std::string baseExtra; |
| 67 | std::string baseType = mElementType->getCppType(&baseExtra); |
| 68 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 69 | const std::string parentName = "_hidl_" + name + "_parent"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 70 | |
| 71 | out << "size_t " << parentName << ";\n\n"; |
| 72 | |
| 73 | const std::string parcelObjDeref = |
| 74 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 75 | |
| 76 | if (isReader) { |
| 77 | out << name |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 78 | << " = (const ::android::hardware::hidl_vec<" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 79 | << baseType |
| 80 | << "> *)" |
| 81 | << parcelObjDeref |
| 82 | << "readBuffer(&" |
| 83 | << parentName |
| 84 | << ");\n\n"; |
| 85 | |
| 86 | out << "if (" << name << " == nullptr) {\n"; |
| 87 | |
| 88 | out.indent(); |
| 89 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 90 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 91 | handleError2(out, mode); |
| 92 | |
| 93 | out.unindent(); |
| 94 | out << "}\n\n"; |
| 95 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 96 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 97 | << parcelObjDeref |
| 98 | << "writeBuffer(&" |
| 99 | << name |
| 100 | << ", sizeof(" |
| 101 | << name |
| 102 | << "), &" |
| 103 | << parentName |
| 104 | << ");\n"; |
| 105 | |
| 106 | handleError(out, mode); |
| 107 | } |
| 108 | |
| 109 | emitReaderWriterEmbedded( |
| 110 | out, |
| 111 | name, |
| 112 | isReader /* nameIsPointer */, |
| 113 | parcelObj, |
| 114 | parcelObjIsPointer, |
| 115 | isReader, |
| 116 | mode, |
| 117 | parentName, |
| 118 | "0 /* parentOffset */"); |
| 119 | } |
| 120 | |
| 121 | void VectorType::emitReaderWriterEmbedded( |
| 122 | Formatter &out, |
| 123 | const std::string &name, |
| 124 | bool nameIsPointer, |
| 125 | const std::string &parcelObj, |
| 126 | bool parcelObjIsPointer, |
| 127 | bool isReader, |
| 128 | ErrorMode mode, |
| 129 | const std::string &parentName, |
| 130 | const std::string &offsetText) const { |
| 131 | std::string baseExtra; |
| 132 | std::string baseType = Type::getCppType(&baseExtra); |
| 133 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 134 | const std::string childName = "_hidl_" + name + "_child"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 135 | out << "size_t " << childName << ";\n\n"; |
| 136 | |
| 137 | emitReaderWriterEmbeddedForTypeName( |
| 138 | out, |
| 139 | name, |
| 140 | nameIsPointer, |
| 141 | parcelObj, |
| 142 | parcelObjIsPointer, |
| 143 | isReader, |
| 144 | mode, |
| 145 | parentName, |
| 146 | offsetText, |
| 147 | baseType, |
| 148 | childName); |
| 149 | |
| 150 | if (!mElementType->needsEmbeddedReadWrite()) { |
| 151 | return; |
| 152 | } |
| 153 | |
| 154 | const std::string nameDeref = name + (nameIsPointer ? "->" : "."); |
| 155 | |
| 156 | baseType = mElementType->getCppType(&baseExtra); |
| 157 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 158 | out << "for (size_t _hidl_index = 0; _hidl_index < " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 159 | << nameDeref |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 160 | << "size(); ++_hidl_index) {\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 161 | |
| 162 | out.indent(); |
| 163 | |
| 164 | mElementType->emitReaderWriterEmbedded( |
| 165 | out, |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 166 | (nameIsPointer ? "(*" + name + ")" : name) + "[_hidl_index]", |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 167 | false /* nameIsPointer */, |
| 168 | parcelObj, |
| 169 | parcelObjIsPointer, |
| 170 | isReader, |
| 171 | mode, |
| 172 | childName, |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 173 | "_hidl_index * sizeof(" + baseType + ")"); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 174 | |
| 175 | out.unindent(); |
| 176 | |
| 177 | out << "}\n\n"; |
| 178 | } |
| 179 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 180 | void VectorType::emitJavaReaderWriter( |
| 181 | Formatter &out, |
| 182 | const std::string &parcelObj, |
| 183 | const std::string &argName, |
| 184 | bool isReader) const { |
| 185 | if (mElementType->isCompoundType()) { |
| 186 | if (isReader) { |
| 187 | out << mElementType->getJavaType() |
| 188 | << ".readVectorFromParcel(" |
| 189 | << parcelObj |
| 190 | << ");\n"; |
| 191 | } else { |
| 192 | out << mElementType->getJavaType() |
| 193 | << ".writeVectorToParcel(" |
| 194 | << parcelObj |
| 195 | << ", " |
| 196 | << argName |
| 197 | << ");\n"; |
| 198 | } |
| 199 | |
| 200 | return; |
| 201 | } |
| 202 | |
| 203 | emitJavaReaderWriterWithSuffix( |
| 204 | out, |
| 205 | parcelObj, |
| 206 | argName, |
| 207 | isReader, |
| 208 | mElementType->getJavaSuffix() + "Vector", |
| 209 | "" /* extra */); |
| 210 | } |
| 211 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 212 | void VectorType::emitJavaFieldInitializer( |
| 213 | Formatter &out, const std::string &fieldName) const { |
| 214 | out << "final Vector<" |
| 215 | << mElementType->getJavaWrapperType() |
| 216 | << "> " |
| 217 | << fieldName |
| 218 | << " = new Vector();\n"; |
| 219 | } |
| 220 | |
| 221 | void VectorType::emitJavaFieldReaderWriter( |
| 222 | Formatter &out, |
| 223 | const std::string &blobName, |
| 224 | const std::string &fieldName, |
| 225 | const std::string &offset, |
| 226 | bool isReader) const { |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 227 | VectorType::EmitJavaFieldReaderWriterForElementType( |
| 228 | out, mElementType, blobName, fieldName, offset, isReader); |
| 229 | } |
| 230 | |
| 231 | // static |
| 232 | void VectorType::EmitJavaFieldReaderWriterForElementType( |
| 233 | Formatter &out, |
| 234 | const Type *elementType, |
| 235 | const std::string &blobName, |
| 236 | const std::string &fieldName, |
| 237 | const std::string &offset, |
| 238 | bool isReader) { |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 239 | if (isReader) { |
| 240 | out << "{\n"; |
| 241 | out.indent(); |
| 242 | |
| 243 | out << "HwBlob childBlob = parcel.readEmbeddedBuffer(\n"; |
| 244 | out.indent(); |
| 245 | out.indent(); |
| 246 | |
| 247 | out << blobName |
| 248 | << ".handle(),\n" |
| 249 | << offset |
| 250 | << " + 0 /* offsetof(hidl_vec<T>, mBuffer) */);\n\n"; |
| 251 | |
| 252 | out.unindent(); |
| 253 | out.unindent(); |
| 254 | |
| 255 | out << fieldName << ".clear();\n"; |
| 256 | out << "long _hidl_vec_size = " |
| 257 | << blobName |
| 258 | << ".getInt64(" |
| 259 | << offset |
| 260 | << " + 8 /* offsetof(hidl_vec<T>, mSize) */);\n"; |
| 261 | |
| 262 | out << "for (int _hidl_index = 0; _hidl_index < _hidl_vec_size; " |
| 263 | << "++_hidl_index) {\n"; |
| 264 | |
| 265 | out.indent(); |
| 266 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 267 | elementType->emitJavaFieldInitializer(out, "_hidl_vec_element"); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 268 | |
| 269 | size_t elementAlign, elementSize; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 270 | elementType->getAlignmentAndSize(&elementAlign, &elementSize); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 271 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 272 | elementType->emitJavaFieldReaderWriter( |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 273 | out, |
| 274 | "childBlob", |
| 275 | "_hidl_vec_element", |
| 276 | "_hidl_index * " + std::to_string(elementSize), |
| 277 | true /* isReader */); |
| 278 | |
| 279 | out << fieldName |
| 280 | << ".add(_hidl_vec_element);\n"; |
| 281 | |
| 282 | out.unindent(); |
| 283 | |
| 284 | out << "}\n"; |
| 285 | |
| 286 | out.unindent(); |
| 287 | out << "}\n"; |
| 288 | |
| 289 | return; |
| 290 | } |
| 291 | |
| 292 | out << "{\n"; |
| 293 | out.indent(); |
| 294 | |
| 295 | out << "long _hidl_vec_size = " |
| 296 | << fieldName |
| 297 | << ".size();\n"; |
| 298 | |
| 299 | out << blobName |
| 300 | << ".putInt64(" |
| 301 | << offset |
| 302 | << " + 8 /* offsetof(hidl_vec<T>, mSize) */, _hidl_vec_size);\n"; |
| 303 | |
| 304 | out << blobName |
| 305 | << ".putBool(" |
| 306 | << offset |
| 307 | << " + 16 /* offsetof(hidl_vec<T>, mOwnsBuffer) */, false);\n"; |
| 308 | |
| 309 | size_t elementAlign, elementSize; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 310 | elementType->getAlignmentAndSize(&elementAlign, &elementSize); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 311 | |
| 312 | // XXX make HwBlob constructor take a long instead of an int? |
| 313 | out << "HwBlob childBlob = new HwBlob((int)(_hidl_vec_size * " |
| 314 | << elementSize |
| 315 | << "));\n"; |
| 316 | |
| 317 | out << "for (int _hidl_index = 0; _hidl_index < _hidl_vec_size; " |
| 318 | << "++_hidl_index) {\n"; |
| 319 | |
| 320 | out.indent(); |
| 321 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 322 | elementType->emitJavaFieldReaderWriter( |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 323 | out, |
| 324 | "childBlob", |
| 325 | fieldName + ".elementAt(_hidl_index)", |
| 326 | "_hidl_index * " + std::to_string(elementSize), |
| 327 | false /* isReader */); |
| 328 | |
| 329 | out.unindent(); |
| 330 | |
| 331 | out << "}\n"; |
| 332 | |
| 333 | out << blobName |
| 334 | << ".putBlob(" |
| 335 | << offset |
| 336 | << " + 0 /* offsetof(hidl_vec<T>, mBuffer) */, childBlob);\n"; |
| 337 | |
| 338 | out.unindent(); |
| 339 | out << "}\n"; |
| 340 | } |
| 341 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 342 | bool VectorType::needsEmbeddedReadWrite() const { |
| 343 | return true; |
| 344 | } |
| 345 | |
| 346 | bool VectorType::resultNeedsDeref() const { |
| 347 | return true; |
| 348 | } |
| 349 | |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 350 | status_t VectorType::emitVtsTypeDeclarations(Formatter &out) const { |
| 351 | out << "type: TYPE_VECTOR\n" << "vector_value: {\n"; |
| 352 | out.indent(); |
| 353 | status_t err = mElementType->emitVtsTypeDeclarations(out); |
| 354 | if (err != OK) { |
| 355 | return err; |
| 356 | } |
| 357 | out.unindent(); |
| 358 | out << "}\n"; |
| 359 | return OK; |
| 360 | } |
| 361 | |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 362 | status_t VectorType::emitVtsAttributeType(Formatter &out) const { |
| 363 | out << "type: TYPE_VECTOR\n" << "vector_value: {\n"; |
| 364 | out.indent(); |
| 365 | status_t status = mElementType->emitVtsAttributeType(out); |
| 366 | if (status != OK) { |
| 367 | return status; |
| 368 | } |
| 369 | out.unindent(); |
| 370 | out << "}\n"; |
| 371 | return OK; |
| 372 | } |
| 373 | |
Andreas Huber | 70a59e1 | 2016-08-16 12:57:01 -0700 | [diff] [blame] | 374 | bool VectorType::isJavaCompatible() const { |
| 375 | return mElementType->isJavaCompatible(); |
| 376 | } |
| 377 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 378 | void VectorType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 379 | *align = 8; // hidl_vec<T> |
| 380 | *size = 24; |
| 381 | } |
| 382 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 383 | } // namespace android |
| 384 | |