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