| #include "VectorType.h" |
| |
| #include "Formatter.h" |
| |
| #include <android-base/logging.h> |
| |
| namespace android { |
| |
| VectorType::VectorType(Type *elementType) |
| : mElementType(elementType) { |
| } |
| |
| std::string VectorType::getCppType(StorageMode mode, std::string *extra) const { |
| const std::string base = |
| "::android::hardware::hidl_vec<" |
| + mElementType->getCppType(extra) |
| + ">"; |
| |
| CHECK(extra->empty()); |
| |
| switch (mode) { |
| case StorageMode_Stack: |
| return base; |
| |
| case StorageMode_Argument: |
| return "const " + base + "&"; |
| |
| case StorageMode_Result: |
| return "const " + base + "*"; |
| } |
| } |
| |
| void VectorType::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 = "_aidl_" + name + "_parent"; |
| |
| out << "size_t " << parentName << ";\n\n"; |
| |
| const std::string parcelObjDeref = |
| parcelObj + (parcelObjIsPointer ? "->" : "."); |
| |
| if (isReader) { |
| out << name |
| << " = (const ::android::hardware::hidl_vec<" |
| << baseType |
| << "> *)" |
| << parcelObjDeref |
| << "readBuffer(&" |
| << parentName |
| << ");\n\n"; |
| |
| out << "if (" << name << " == nullptr) {\n"; |
| |
| out.indent(); |
| |
| out << "_aidl_err = ::android::UNKNOWN_ERROR;\n"; |
| handleError2(out, mode); |
| |
| out.unindent(); |
| out << "}\n\n"; |
| } else { |
| out << "_aidl_err = " |
| << parcelObjDeref |
| << "writeBuffer(&" |
| << name |
| << ", sizeof(" |
| << name |
| << "), &" |
| << parentName |
| << ");\n"; |
| |
| handleError(out, mode); |
| } |
| |
| emitReaderWriterEmbedded( |
| out, |
| name, |
| isReader /* nameIsPointer */, |
| parcelObj, |
| parcelObjIsPointer, |
| isReader, |
| mode, |
| parentName, |
| "0 /* parentOffset */"); |
| } |
| |
| void VectorType::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 { |
| std::string baseExtra; |
| std::string baseType = Type::getCppType(&baseExtra); |
| |
| const std::string childName = "_aidl_" + name + "_child"; |
| out << "size_t " << childName << ";\n\n"; |
| |
| emitReaderWriterEmbeddedForTypeName( |
| out, |
| name, |
| nameIsPointer, |
| parcelObj, |
| parcelObjIsPointer, |
| isReader, |
| mode, |
| parentName, |
| offsetText, |
| baseType, |
| childName); |
| |
| if (!mElementType->needsEmbeddedReadWrite()) { |
| return; |
| } |
| |
| const std::string nameDeref = name + (nameIsPointer ? "->" : "."); |
| |
| baseType = mElementType->getCppType(&baseExtra); |
| |
| out << "for (size_t _aidl_index = 0; _aidl_index < " |
| << nameDeref |
| << "count; ++_aidl_index) {\n"; |
| |
| out.indent(); |
| |
| mElementType->emitReaderWriterEmbedded( |
| out, |
| nameDeref + "buffer[_aidl_index]", |
| false /* nameIsPointer */, |
| parcelObj, |
| parcelObjIsPointer, |
| isReader, |
| mode, |
| childName, |
| "_aidl_index * sizeof(" + baseType + ")"); |
| |
| out.unindent(); |
| |
| out << "}\n\n"; |
| } |
| |
| bool VectorType::needsEmbeddedReadWrite() const { |
| return true; |
| } |
| |
| bool VectorType::resultNeedsDeref() const { |
| return true; |
| } |
| |
| } // namespace android |
| |