Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 1 | #include "VectorType.h" |
| 2 | |
| 3 | #include "Formatter.h" |
| 4 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 5 | #include <android-base/logging.h> |
| 6 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 7 | namespace android { |
| 8 | |
| 9 | VectorType::VectorType(Type *elementType) |
| 10 | : mElementType(elementType) { |
| 11 | } |
| 12 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 13 | std::string VectorType::getCppType(StorageMode mode, std::string *extra) const { |
| 14 | const std::string base = |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 15 | "::android::hardware::hidl_vec<" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 16 | + mElementType->getCppType(extra) |
| 17 | + ">"; |
| 18 | |
| 19 | CHECK(extra->empty()); |
| 20 | |
| 21 | switch (mode) { |
| 22 | case StorageMode_Stack: |
| 23 | return base; |
| 24 | |
| 25 | case StorageMode_Argument: |
| 26 | return "const " + base + "&"; |
| 27 | |
| 28 | case StorageMode_Result: |
| 29 | return "const " + base + "*"; |
| 30 | } |
| 31 | } |
| 32 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 33 | std::string VectorType::getJavaType() const { |
| 34 | return mElementType->getJavaType() + "[]"; |
| 35 | } |
| 36 | |
| 37 | std::string VectorType::getJavaSuffix() const { |
| 38 | return mElementType->getJavaSuffix() + "Vector"; |
| 39 | } |
| 40 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 41 | void VectorType::emitReaderWriter( |
| 42 | Formatter &out, |
| 43 | const std::string &name, |
| 44 | const std::string &parcelObj, |
| 45 | bool parcelObjIsPointer, |
| 46 | bool isReader, |
| 47 | ErrorMode mode) const { |
| 48 | std::string baseExtra; |
| 49 | std::string baseType = mElementType->getCppType(&baseExtra); |
| 50 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 51 | const std::string parentName = "_hidl_" + name + "_parent"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 52 | |
| 53 | out << "size_t " << parentName << ";\n\n"; |
| 54 | |
| 55 | const std::string parcelObjDeref = |
| 56 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 57 | |
| 58 | if (isReader) { |
| 59 | out << name |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 60 | << " = (const ::android::hardware::hidl_vec<" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 61 | << baseType |
| 62 | << "> *)" |
| 63 | << parcelObjDeref |
| 64 | << "readBuffer(&" |
| 65 | << parentName |
| 66 | << ");\n\n"; |
| 67 | |
| 68 | out << "if (" << name << " == nullptr) {\n"; |
| 69 | |
| 70 | out.indent(); |
| 71 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 72 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 73 | handleError2(out, mode); |
| 74 | |
| 75 | out.unindent(); |
| 76 | out << "}\n\n"; |
| 77 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 78 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 79 | << parcelObjDeref |
| 80 | << "writeBuffer(&" |
| 81 | << name |
| 82 | << ", sizeof(" |
| 83 | << name |
| 84 | << "), &" |
| 85 | << parentName |
| 86 | << ");\n"; |
| 87 | |
| 88 | handleError(out, mode); |
| 89 | } |
| 90 | |
| 91 | emitReaderWriterEmbedded( |
| 92 | out, |
| 93 | name, |
| 94 | isReader /* nameIsPointer */, |
| 95 | parcelObj, |
| 96 | parcelObjIsPointer, |
| 97 | isReader, |
| 98 | mode, |
| 99 | parentName, |
| 100 | "0 /* parentOffset */"); |
| 101 | } |
| 102 | |
| 103 | void VectorType::emitReaderWriterEmbedded( |
| 104 | Formatter &out, |
| 105 | const std::string &name, |
| 106 | bool nameIsPointer, |
| 107 | const std::string &parcelObj, |
| 108 | bool parcelObjIsPointer, |
| 109 | bool isReader, |
| 110 | ErrorMode mode, |
| 111 | const std::string &parentName, |
| 112 | const std::string &offsetText) const { |
| 113 | std::string baseExtra; |
| 114 | std::string baseType = Type::getCppType(&baseExtra); |
| 115 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 116 | const std::string childName = "_hidl_" + name + "_child"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 117 | out << "size_t " << childName << ";\n\n"; |
| 118 | |
| 119 | emitReaderWriterEmbeddedForTypeName( |
| 120 | out, |
| 121 | name, |
| 122 | nameIsPointer, |
| 123 | parcelObj, |
| 124 | parcelObjIsPointer, |
| 125 | isReader, |
| 126 | mode, |
| 127 | parentName, |
| 128 | offsetText, |
| 129 | baseType, |
| 130 | childName); |
| 131 | |
| 132 | if (!mElementType->needsEmbeddedReadWrite()) { |
| 133 | return; |
| 134 | } |
| 135 | |
| 136 | const std::string nameDeref = name + (nameIsPointer ? "->" : "."); |
| 137 | |
| 138 | baseType = mElementType->getCppType(&baseExtra); |
| 139 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 140 | out << "for (size_t _hidl_index = 0; _hidl_index < " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 141 | << nameDeref |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 142 | << "size(); ++_hidl_index) {\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 143 | |
| 144 | out.indent(); |
| 145 | |
| 146 | mElementType->emitReaderWriterEmbedded( |
| 147 | out, |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 148 | (nameIsPointer ? "(*" + name + ")" : name) + "[_hidl_index]", |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 149 | false /* nameIsPointer */, |
| 150 | parcelObj, |
| 151 | parcelObjIsPointer, |
| 152 | isReader, |
| 153 | mode, |
| 154 | childName, |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 155 | "_hidl_index * sizeof(" + baseType + ")"); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 156 | |
| 157 | out.unindent(); |
| 158 | |
| 159 | out << "}\n\n"; |
| 160 | } |
| 161 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame^] | 162 | void VectorType::emitJavaFieldInitializer( |
| 163 | Formatter &out, const std::string &fieldName) const { |
| 164 | out << "final Vector<" |
| 165 | << mElementType->getJavaWrapperType() |
| 166 | << "> " |
| 167 | << fieldName |
| 168 | << " = new Vector();\n"; |
| 169 | } |
| 170 | |
| 171 | void VectorType::emitJavaFieldReaderWriter( |
| 172 | Formatter &out, |
| 173 | const std::string &blobName, |
| 174 | const std::string &fieldName, |
| 175 | const std::string &offset, |
| 176 | bool isReader) const { |
| 177 | if (isReader) { |
| 178 | out << "{\n"; |
| 179 | out.indent(); |
| 180 | |
| 181 | out << "HwBlob childBlob = parcel.readEmbeddedBuffer(\n"; |
| 182 | out.indent(); |
| 183 | out.indent(); |
| 184 | |
| 185 | out << blobName |
| 186 | << ".handle(),\n" |
| 187 | << offset |
| 188 | << " + 0 /* offsetof(hidl_vec<T>, mBuffer) */);\n\n"; |
| 189 | |
| 190 | out.unindent(); |
| 191 | out.unindent(); |
| 192 | |
| 193 | out << fieldName << ".clear();\n"; |
| 194 | out << "long _hidl_vec_size = " |
| 195 | << blobName |
| 196 | << ".getInt64(" |
| 197 | << offset |
| 198 | << " + 8 /* offsetof(hidl_vec<T>, mSize) */);\n"; |
| 199 | |
| 200 | out << "for (int _hidl_index = 0; _hidl_index < _hidl_vec_size; " |
| 201 | << "++_hidl_index) {\n"; |
| 202 | |
| 203 | out.indent(); |
| 204 | |
| 205 | mElementType->emitJavaFieldInitializer(out, "_hidl_vec_element"); |
| 206 | |
| 207 | size_t elementAlign, elementSize; |
| 208 | mElementType->getAlignmentAndSize(&elementAlign, &elementSize); |
| 209 | |
| 210 | mElementType->emitJavaFieldReaderWriter( |
| 211 | out, |
| 212 | "childBlob", |
| 213 | "_hidl_vec_element", |
| 214 | "_hidl_index * " + std::to_string(elementSize), |
| 215 | true /* isReader */); |
| 216 | |
| 217 | out << fieldName |
| 218 | << ".add(_hidl_vec_element);\n"; |
| 219 | |
| 220 | out.unindent(); |
| 221 | |
| 222 | out << "}\n"; |
| 223 | |
| 224 | out.unindent(); |
| 225 | out << "}\n"; |
| 226 | |
| 227 | return; |
| 228 | } |
| 229 | |
| 230 | out << "{\n"; |
| 231 | out.indent(); |
| 232 | |
| 233 | out << "long _hidl_vec_size = " |
| 234 | << fieldName |
| 235 | << ".size();\n"; |
| 236 | |
| 237 | out << blobName |
| 238 | << ".putInt64(" |
| 239 | << offset |
| 240 | << " + 8 /* offsetof(hidl_vec<T>, mSize) */, _hidl_vec_size);\n"; |
| 241 | |
| 242 | out << blobName |
| 243 | << ".putBool(" |
| 244 | << offset |
| 245 | << " + 16 /* offsetof(hidl_vec<T>, mOwnsBuffer) */, false);\n"; |
| 246 | |
| 247 | size_t elementAlign, elementSize; |
| 248 | mElementType->getAlignmentAndSize(&elementAlign, &elementSize); |
| 249 | |
| 250 | // XXX make HwBlob constructor take a long instead of an int? |
| 251 | out << "HwBlob childBlob = new HwBlob((int)(_hidl_vec_size * " |
| 252 | << elementSize |
| 253 | << "));\n"; |
| 254 | |
| 255 | out << "for (int _hidl_index = 0; _hidl_index < _hidl_vec_size; " |
| 256 | << "++_hidl_index) {\n"; |
| 257 | |
| 258 | out.indent(); |
| 259 | |
| 260 | mElementType->emitJavaFieldReaderWriter( |
| 261 | out, |
| 262 | "childBlob", |
| 263 | fieldName + ".elementAt(_hidl_index)", |
| 264 | "_hidl_index * " + std::to_string(elementSize), |
| 265 | false /* isReader */); |
| 266 | |
| 267 | out.unindent(); |
| 268 | |
| 269 | out << "}\n"; |
| 270 | |
| 271 | out << blobName |
| 272 | << ".putBlob(" |
| 273 | << offset |
| 274 | << " + 0 /* offsetof(hidl_vec<T>, mBuffer) */, childBlob);\n"; |
| 275 | |
| 276 | out.unindent(); |
| 277 | out << "}\n"; |
| 278 | } |
| 279 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 280 | bool VectorType::needsEmbeddedReadWrite() const { |
| 281 | return true; |
| 282 | } |
| 283 | |
| 284 | bool VectorType::resultNeedsDeref() const { |
| 285 | return true; |
| 286 | } |
| 287 | |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 288 | status_t VectorType::emitVtsTypeDeclarations(Formatter &out) const { |
| 289 | out << "type: TYPE_VECTOR\n" << "vector_value: {\n"; |
| 290 | out.indent(); |
| 291 | status_t err = mElementType->emitVtsTypeDeclarations(out); |
| 292 | if (err != OK) { |
| 293 | return err; |
| 294 | } |
| 295 | out.unindent(); |
| 296 | out << "}\n"; |
| 297 | return OK; |
| 298 | } |
| 299 | |
Zhuoyao Zhang | 864c771 | 2016-08-16 15:35:28 -0700 | [diff] [blame] | 300 | status_t VectorType::emitVtsAttributeType(Formatter &out) const { |
| 301 | out << "type: TYPE_VECTOR\n" << "vector_value: {\n"; |
| 302 | out.indent(); |
| 303 | status_t status = mElementType->emitVtsAttributeType(out); |
| 304 | if (status != OK) { |
| 305 | return status; |
| 306 | } |
| 307 | out.unindent(); |
| 308 | out << "}\n"; |
| 309 | return OK; |
| 310 | } |
| 311 | |
Andreas Huber | 70a59e1 | 2016-08-16 12:57:01 -0700 | [diff] [blame] | 312 | bool VectorType::isJavaCompatible() const { |
| 313 | return mElementType->isJavaCompatible(); |
| 314 | } |
| 315 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame^] | 316 | void VectorType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 317 | *align = 8; // hidl_vec<T> |
| 318 | *size = 24; |
| 319 | } |
| 320 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 321 | } // namespace android |
| 322 | |