| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "ArrayType.h" |
| |
| #include "Formatter.h" |
| |
| #include <android-base/logging.h> |
| |
| namespace android { |
| |
| ArrayType::ArrayType(Type *elementType, const char *dimension) |
| : mElementType(elementType), |
| mDimension(dimension) { |
| } |
| |
| void ArrayType::addNamedTypesToSet(std::set<const FQName> &set) const { |
| mElementType->addNamedTypesToSet(set); |
| } |
| |
| std::string ArrayType::getCppType(StorageMode mode, |
| std::string *extra, |
| bool specifyNamespaces) const { |
| const std::string base = mElementType->getCppType(extra, specifyNamespaces); |
| |
| CHECK(extra->empty()); |
| |
| *extra = "[" + mDimension + "]"; |
| |
| switch (mode) { |
| case StorageMode_Stack: |
| return base; |
| |
| case StorageMode_Argument: |
| return "const " + base; |
| |
| case StorageMode_Result: |
| { |
| extra->clear(); |
| return "const " + base + "*"; |
| } |
| } |
| } |
| |
| std::string ArrayType::getJavaType() const { |
| return mElementType->getJavaType() + "[]"; |
| } |
| |
| void ArrayType::emitReaderWriter( |
| Formatter &out, |
| const std::string &name, |
| const std::string &parcelObj, |
| bool parcelObjIsPointer, |
| bool isReader, |
| ErrorMode mode) const { |
| std::string baseExtra; |
| std::string baseType = mElementType->getCppType(&baseExtra); |
| |
| const std::string parentName = "_hidl_" + name + "_parent"; |
| |
| out << "size_t " << parentName << ";\n\n"; |
| |
| const std::string parcelObjDeref = |
| parcelObj + (parcelObjIsPointer ? "->" : "."); |
| |
| if (isReader) { |
| out << name |
| << " = (const " |
| << baseType |
| << " *)" |
| << parcelObjDeref |
| << "readBuffer(&" |
| << parentName |
| << ");\n\n"; |
| |
| out << "if (" << name << " == nullptr) {\n"; |
| |
| out.indent(); |
| |
| out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
| handleError2(out, mode); |
| |
| out.unindent(); |
| out << "}\n\n"; |
| } else { |
| out << "_hidl_err = " |
| << parcelObjDeref |
| << "writeBuffer(" |
| << name |
| << ", " |
| << mDimension |
| << " * sizeof(" |
| << baseType |
| << "), &" |
| << parentName |
| << ");\n"; |
| |
| handleError(out, mode); |
| } |
| |
| emitReaderWriterEmbedded( |
| out, |
| name, |
| isReader /* nameIsPointer */, |
| parcelObj, |
| parcelObjIsPointer, |
| isReader, |
| mode, |
| parentName, |
| "0 /* parentOffset */"); |
| } |
| |
| void ArrayType::emitReaderWriterEmbedded( |
| Formatter &out, |
| const std::string &name, |
| bool nameIsPointer, |
| const std::string &parcelObj, |
| bool parcelObjIsPointer, |
| bool isReader, |
| ErrorMode mode, |
| const std::string &parentName, |
| const std::string &offsetText) const { |
| if (!mElementType->needsEmbeddedReadWrite()) { |
| return; |
| } |
| |
| const std::string nameDeref = name + (nameIsPointer ? "->" : "."); |
| |
| std::string baseExtra; |
| std::string baseType = mElementType->getCppType(&baseExtra); |
| |
| out << "for (size_t _hidl_index = 0; _hidl_index < " |
| << mDimension |
| << "; ++_hidl_index) {\n"; |
| |
| out.indent(); |
| |
| mElementType->emitReaderWriterEmbedded( |
| out, |
| name + "[_hidl_index]", |
| false /* nameIsPointer */, |
| parcelObj, |
| parcelObjIsPointer, |
| isReader, |
| mode, |
| parentName, |
| offsetText + " + _hidl_index * sizeof(" + baseType + ")"); |
| |
| out.unindent(); |
| |
| out << "}\n\n"; |
| } |
| |
| bool ArrayType::needsEmbeddedReadWrite() const { |
| return mElementType->needsEmbeddedReadWrite(); |
| } |
| |
| void ArrayType::emitJavaReaderWriter( |
| Formatter &out, |
| const std::string &parcelObj, |
| const std::string &argName, |
| bool isReader) const { |
| emitJavaReaderWriterWithSuffix( |
| out, |
| parcelObj, |
| argName, |
| isReader, |
| mElementType->getJavaSuffix() + "Array", |
| mDimension); |
| } |
| |
| void ArrayType::emitJavaFieldInitializer( |
| Formatter &out, const std::string &fieldName) const { |
| out << "final " |
| << mElementType->getJavaType() |
| << "[] " |
| << fieldName |
| << " = new " |
| << mElementType->getJavaType() |
| << "[" |
| << mDimension |
| << "];\n"; |
| } |
| |
| void ArrayType::emitJavaFieldReaderWriter( |
| Formatter &out, |
| const std::string &blobName, |
| const std::string &fieldName, |
| const std::string &offset, |
| bool isReader) const { |
| out << "for (int _hidl_index = 0; _hidl_index < " |
| << mDimension |
| << "; ++_hidl_index) {\n"; |
| |
| out.indent(); |
| |
| size_t elementAlign, elementSize; |
| mElementType->getAlignmentAndSize(&elementAlign, &elementSize); |
| |
| mElementType->emitJavaFieldReaderWriter( |
| out, |
| blobName, |
| fieldName + "[_hidl_index]", |
| offset + " + _hidl_index * " + std::to_string(elementSize), |
| isReader); |
| |
| out.unindent(); |
| out << "}\n"; |
| } |
| |
| status_t ArrayType::emitVtsTypeDeclarations(Formatter &out) const { |
| out << "type: TYPE_ARRAY\n" << "vector_value: {\n"; |
| out.indent(); |
| out << "size: " << mDimension << "\n"; |
| status_t err = mElementType->emitVtsTypeDeclarations(out); |
| if (err != OK) { |
| return err; |
| } |
| out.unindent(); |
| out << "}\n"; |
| return OK; |
| } |
| |
| bool ArrayType::isJavaCompatible() const { |
| return mElementType->isJavaCompatible(); |
| } |
| |
| void ArrayType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| mElementType->getAlignmentAndSize(align, size); |
| |
| char *end; |
| unsigned long dim = strtoul(mDimension.c_str(), &end, 10); |
| CHECK(end > mDimension.c_str() && *end == '\0'); |
| |
| (*size) *= dim; |
| } |
| |
| } // namespace android |
| |