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 | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 39 | + (*extra) |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 40 | + ">"; |
| 41 | |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 42 | extra->clear(); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 43 | |
| 44 | switch (mode) { |
| 45 | case StorageMode_Stack: |
| 46 | return base; |
| 47 | |
| 48 | case StorageMode_Argument: |
| 49 | return "const " + base + "&"; |
| 50 | |
| 51 | case StorageMode_Result: |
| 52 | return "const " + base + "*"; |
| 53 | } |
| 54 | } |
| 55 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 56 | std::string VectorType::getJavaType() const { |
| 57 | return mElementType->getJavaType() + "[]"; |
| 58 | } |
| 59 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 60 | void VectorType::emitReaderWriter( |
| 61 | Formatter &out, |
| 62 | const std::string &name, |
| 63 | const std::string &parcelObj, |
| 64 | bool parcelObjIsPointer, |
| 65 | bool isReader, |
| 66 | ErrorMode mode) const { |
| 67 | std::string baseExtra; |
| 68 | std::string baseType = mElementType->getCppType(&baseExtra); |
| 69 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 70 | const std::string parentName = "_hidl_" + name + "_parent"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 71 | |
| 72 | out << "size_t " << parentName << ";\n\n"; |
| 73 | |
| 74 | const std::string parcelObjDeref = |
| 75 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 76 | |
| 77 | if (isReader) { |
| 78 | out << name |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 79 | << " = (const ::android::hardware::hidl_vec<" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 80 | << baseType |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 81 | << baseExtra |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 82 | << "> *)" |
| 83 | << parcelObjDeref |
| 84 | << "readBuffer(&" |
| 85 | << parentName |
| 86 | << ");\n\n"; |
| 87 | |
| 88 | out << "if (" << name << " == nullptr) {\n"; |
| 89 | |
| 90 | out.indent(); |
| 91 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 92 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 93 | handleError2(out, mode); |
| 94 | |
| 95 | out.unindent(); |
| 96 | out << "}\n\n"; |
| 97 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 98 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 99 | << parcelObjDeref |
| 100 | << "writeBuffer(&" |
| 101 | << name |
| 102 | << ", sizeof(" |
| 103 | << name |
| 104 | << "), &" |
| 105 | << parentName |
| 106 | << ");\n"; |
| 107 | |
| 108 | handleError(out, mode); |
| 109 | } |
| 110 | |
| 111 | emitReaderWriterEmbedded( |
| 112 | out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 113 | 0 /* depth */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 114 | name, |
| 115 | isReader /* nameIsPointer */, |
| 116 | parcelObj, |
| 117 | parcelObjIsPointer, |
| 118 | isReader, |
| 119 | mode, |
| 120 | parentName, |
| 121 | "0 /* parentOffset */"); |
| 122 | } |
| 123 | |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 124 | // Remove any trailing array indices from the given name, i.e. foo[2][3] => foo |
| 125 | static std::string StripIndex(const std::string &name) { |
| 126 | size_t pos = name.find("["); |
| 127 | if (pos == std::string::npos) { |
| 128 | return name; |
| 129 | } |
| 130 | |
| 131 | return name.substr(0, pos); |
| 132 | } |
| 133 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 134 | void VectorType::emitReaderWriterEmbedded( |
| 135 | Formatter &out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 136 | size_t depth, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 137 | const std::string &name, |
| 138 | bool nameIsPointer, |
| 139 | const std::string &parcelObj, |
| 140 | bool parcelObjIsPointer, |
| 141 | bool isReader, |
| 142 | ErrorMode mode, |
| 143 | const std::string &parentName, |
| 144 | const std::string &offsetText) const { |
| 145 | std::string baseExtra; |
| 146 | std::string baseType = Type::getCppType(&baseExtra); |
| 147 | |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 148 | const std::string childName = "_hidl_" + StripIndex(name) + "_child"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 149 | out << "size_t " << childName << ";\n\n"; |
| 150 | |
| 151 | emitReaderWriterEmbeddedForTypeName( |
| 152 | out, |
| 153 | name, |
| 154 | nameIsPointer, |
| 155 | parcelObj, |
| 156 | parcelObjIsPointer, |
| 157 | isReader, |
| 158 | mode, |
| 159 | parentName, |
| 160 | offsetText, |
| 161 | baseType, |
| 162 | childName); |
| 163 | |
| 164 | if (!mElementType->needsEmbeddedReadWrite()) { |
| 165 | return; |
| 166 | } |
| 167 | |
| 168 | const std::string nameDeref = name + (nameIsPointer ? "->" : "."); |
| 169 | |
| 170 | baseType = mElementType->getCppType(&baseExtra); |
| 171 | |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 172 | std::string iteratorName = "_hidl_index_" + std::to_string(depth); |
| 173 | |
| 174 | out << "for (size_t " |
| 175 | << iteratorName |
| 176 | << " = 0; " |
| 177 | << iteratorName |
| 178 | << " < " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 179 | << nameDeref |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 180 | << "size(); ++" |
| 181 | << iteratorName |
| 182 | << ") {\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 183 | |
| 184 | out.indent(); |
| 185 | |
| 186 | mElementType->emitReaderWriterEmbedded( |
| 187 | out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 188 | depth + 1, |
| 189 | (nameIsPointer ? "(*" + name + ")" : name) |
| 190 | + "[" + iteratorName + "]", |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 191 | false /* nameIsPointer */, |
| 192 | parcelObj, |
| 193 | parcelObjIsPointer, |
| 194 | isReader, |
| 195 | mode, |
| 196 | childName, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame^] | 197 | iteratorName + " * sizeof(" + baseType + baseExtra + ")"); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 198 | |
| 199 | out.unindent(); |
| 200 | |
| 201 | out << "}\n\n"; |
| 202 | } |
| 203 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 204 | void VectorType::emitJavaReaderWriter( |
| 205 | Formatter &out, |
| 206 | const std::string &parcelObj, |
| 207 | const std::string &argName, |
| 208 | bool isReader) const { |
| 209 | if (mElementType->isCompoundType()) { |
| 210 | if (isReader) { |
| 211 | out << mElementType->getJavaType() |
| 212 | << ".readVectorFromParcel(" |
| 213 | << parcelObj |
| 214 | << ");\n"; |
| 215 | } else { |
| 216 | out << mElementType->getJavaType() |
| 217 | << ".writeVectorToParcel(" |
| 218 | << parcelObj |
| 219 | << ", " |
| 220 | << argName |
| 221 | << ");\n"; |
| 222 | } |
| 223 | |
| 224 | return; |
| 225 | } |
| 226 | |
| 227 | emitJavaReaderWriterWithSuffix( |
| 228 | out, |
| 229 | parcelObj, |
| 230 | argName, |
| 231 | isReader, |
| 232 | mElementType->getJavaSuffix() + "Vector", |
| 233 | "" /* extra */); |
| 234 | } |
| 235 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 236 | void VectorType::emitJavaFieldInitializer( |
| 237 | Formatter &out, const std::string &fieldName) const { |
| 238 | out << "final Vector<" |
| 239 | << mElementType->getJavaWrapperType() |
| 240 | << "> " |
| 241 | << fieldName |
| 242 | << " = new Vector();\n"; |
| 243 | } |
| 244 | |
| 245 | void VectorType::emitJavaFieldReaderWriter( |
| 246 | Formatter &out, |
| 247 | const std::string &blobName, |
| 248 | const std::string &fieldName, |
| 249 | const std::string &offset, |
| 250 | bool isReader) const { |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 251 | VectorType::EmitJavaFieldReaderWriterForElementType( |
| 252 | out, mElementType, blobName, fieldName, offset, isReader); |
| 253 | } |
| 254 | |
| 255 | // static |
| 256 | void VectorType::EmitJavaFieldReaderWriterForElementType( |
| 257 | Formatter &out, |
| 258 | const Type *elementType, |
| 259 | const std::string &blobName, |
| 260 | const std::string &fieldName, |
| 261 | const std::string &offset, |
| 262 | bool isReader) { |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 263 | if (isReader) { |
| 264 | out << "{\n"; |
| 265 | out.indent(); |
| 266 | |
| 267 | out << "HwBlob childBlob = parcel.readEmbeddedBuffer(\n"; |
| 268 | out.indent(); |
| 269 | out.indent(); |
| 270 | |
| 271 | out << blobName |
| 272 | << ".handle(),\n" |
| 273 | << offset |
| 274 | << " + 0 /* offsetof(hidl_vec<T>, mBuffer) */);\n\n"; |
| 275 | |
| 276 | out.unindent(); |
| 277 | out.unindent(); |
| 278 | |
| 279 | out << fieldName << ".clear();\n"; |
| 280 | out << "long _hidl_vec_size = " |
| 281 | << blobName |
| 282 | << ".getInt64(" |
| 283 | << offset |
| 284 | << " + 8 /* offsetof(hidl_vec<T>, mSize) */);\n"; |
| 285 | |
| 286 | out << "for (int _hidl_index = 0; _hidl_index < _hidl_vec_size; " |
| 287 | << "++_hidl_index) {\n"; |
| 288 | |
| 289 | out.indent(); |
| 290 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 291 | elementType->emitJavaFieldInitializer(out, "_hidl_vec_element"); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 292 | |
| 293 | size_t elementAlign, elementSize; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 294 | elementType->getAlignmentAndSize(&elementAlign, &elementSize); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 295 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 296 | elementType->emitJavaFieldReaderWriter( |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 297 | out, |
| 298 | "childBlob", |
| 299 | "_hidl_vec_element", |
| 300 | "_hidl_index * " + std::to_string(elementSize), |
| 301 | true /* isReader */); |
| 302 | |
| 303 | out << fieldName |
| 304 | << ".add(_hidl_vec_element);\n"; |
| 305 | |
| 306 | out.unindent(); |
| 307 | |
| 308 | out << "}\n"; |
| 309 | |
| 310 | out.unindent(); |
| 311 | out << "}\n"; |
| 312 | |
| 313 | return; |
| 314 | } |
| 315 | |
| 316 | out << "{\n"; |
| 317 | out.indent(); |
| 318 | |
| 319 | out << "long _hidl_vec_size = " |
| 320 | << fieldName |
| 321 | << ".size();\n"; |
| 322 | |
| 323 | out << blobName |
| 324 | << ".putInt64(" |
| 325 | << offset |
| 326 | << " + 8 /* offsetof(hidl_vec<T>, mSize) */, _hidl_vec_size);\n"; |
| 327 | |
| 328 | out << blobName |
| 329 | << ".putBool(" |
| 330 | << offset |
| 331 | << " + 16 /* offsetof(hidl_vec<T>, mOwnsBuffer) */, false);\n"; |
| 332 | |
| 333 | size_t elementAlign, elementSize; |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 334 | elementType->getAlignmentAndSize(&elementAlign, &elementSize); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 335 | |
| 336 | // XXX make HwBlob constructor take a long instead of an int? |
| 337 | out << "HwBlob childBlob = new HwBlob((int)(_hidl_vec_size * " |
| 338 | << elementSize |
| 339 | << "));\n"; |
| 340 | |
| 341 | out << "for (int _hidl_index = 0; _hidl_index < _hidl_vec_size; " |
| 342 | << "++_hidl_index) {\n"; |
| 343 | |
| 344 | out.indent(); |
| 345 | |
Andreas Huber | f630bc8 | 2016-09-09 14:52:25 -0700 | [diff] [blame] | 346 | elementType->emitJavaFieldReaderWriter( |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 347 | out, |
| 348 | "childBlob", |
| 349 | fieldName + ".elementAt(_hidl_index)", |
| 350 | "_hidl_index * " + std::to_string(elementSize), |
| 351 | false /* isReader */); |
| 352 | |
| 353 | out.unindent(); |
| 354 | |
| 355 | out << "}\n"; |
| 356 | |
| 357 | out << blobName |
| 358 | << ".putBlob(" |
| 359 | << offset |
| 360 | << " + 0 /* offsetof(hidl_vec<T>, mBuffer) */, childBlob);\n"; |
| 361 | |
| 362 | out.unindent(); |
| 363 | out << "}\n"; |
| 364 | } |
| 365 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 366 | bool VectorType::needsEmbeddedReadWrite() const { |
| 367 | return true; |
| 368 | } |
| 369 | |
| 370 | bool VectorType::resultNeedsDeref() const { |
| 371 | return true; |
| 372 | } |
| 373 | |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 374 | status_t VectorType::emitVtsTypeDeclarations(Formatter &out) const { |
| 375 | out << "type: TYPE_VECTOR\n" << "vector_value: {\n"; |
| 376 | out.indent(); |
| 377 | status_t err = mElementType->emitVtsTypeDeclarations(out); |
| 378 | if (err != OK) { |
| 379 | return err; |
| 380 | } |
| 381 | out.unindent(); |
| 382 | out << "}\n"; |
| 383 | return OK; |
| 384 | } |
| 385 | |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 386 | status_t VectorType::emitVtsAttributeType(Formatter &out) const { |
| 387 | out << "type: TYPE_VECTOR\n" << "vector_value: {\n"; |
| 388 | out.indent(); |
| 389 | status_t status = mElementType->emitVtsAttributeType(out); |
| 390 | if (status != OK) { |
| 391 | return status; |
| 392 | } |
| 393 | out.unindent(); |
| 394 | out << "}\n"; |
| 395 | return OK; |
| 396 | } |
| 397 | |
Andreas Huber | 70a59e1 | 2016-08-16 12:57:01 -0700 | [diff] [blame] | 398 | bool VectorType::isJavaCompatible() const { |
| 399 | return mElementType->isJavaCompatible(); |
| 400 | } |
| 401 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 402 | void VectorType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 403 | *align = 8; // hidl_vec<T> |
| 404 | *size = 24; |
| 405 | } |
| 406 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 407 | } // namespace android |
| 408 | |