| /* |
| * 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 "HandleType.h" |
| |
| #include <hidl-util/Formatter.h> |
| #include <android-base/logging.h> |
| |
| namespace android { |
| |
| HandleType::HandleType() {} |
| |
| void HandleType::addNamedTypesToSet(std::set<const FQName> &) const { |
| // do nothing |
| } |
| |
| std::string HandleType::getCppType(StorageMode, |
| std::string *extra, |
| bool specifyNamespaces) const { |
| extra->clear(); |
| |
| const std::string base = |
| std::string(specifyNamespaces ? "::" : "") |
| + "native_handle_t"; |
| |
| return "const " + base + "*"; |
| } |
| |
| void HandleType::emitReaderWriter( |
| Formatter &out, |
| const std::string &name, |
| const std::string &parcelObj, |
| bool parcelObjIsPointer, |
| bool isReader, |
| ErrorMode mode) const { |
| const std::string parcelObjDeref = |
| parcelObj + (parcelObjIsPointer ? "->" : "."); |
| |
| if (isReader) { |
| out << name |
| << " = " |
| << parcelObjDeref |
| << "readNativeHandleNoDup();\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 = "; |
| out << parcelObjDeref |
| << "writeNativeHandleNoDup(" |
| << name |
| << ");\n"; |
| |
| handleError(out, mode); |
| } |
| } |
| |
| void HandleType::emitReaderWriterEmbedded( |
| Formatter &out, |
| size_t /* depth */, |
| const std::string &name, |
| const std::string &sanitizedName, |
| bool nameIsPointer, |
| const std::string &parcelObj, |
| bool parcelObjIsPointer, |
| bool isReader, |
| ErrorMode mode, |
| const std::string &parentName, |
| const std::string &offsetText) const { |
| if (isReader) { |
| const std::string ptrName = "_hidl_" + sanitizedName + "_ptr"; |
| |
| out << "const native_handle_t *" |
| << ptrName |
| << " = " |
| << parcelObj |
| << (parcelObjIsPointer ? "->" : ".") |
| << "readEmbeddedNativeHandle(\n"; |
| |
| out.indent(); |
| out.indent(); |
| |
| out << parentName |
| << ",\n" |
| << offsetText |
| << ");\n\n"; |
| |
| out.unindent(); |
| out.unindent(); |
| |
| out << "if (" |
| << ptrName |
| << " == nullptr) {\n"; |
| |
| out.indent(); |
| out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
| handleError2(out, mode); |
| out.unindent(); |
| out << "}\n\n"; |
| } else { |
| out << "_hidl_err = " |
| << parcelObj |
| << (parcelObjIsPointer ? "->" : ".") |
| << "writeEmbeddedNativeHandle(\n"; |
| |
| out.indent(); |
| out.indent(); |
| |
| out << (nameIsPointer ? ("*" + name) : name) |
| << ",\n" |
| << parentName |
| << ",\n" |
| << offsetText |
| << ");\n\n"; |
| |
| out.unindent(); |
| out.unindent(); |
| |
| handleError(out, mode); |
| } |
| } |
| |
| bool HandleType::needsEmbeddedReadWrite() const { |
| return true; |
| } |
| |
| bool HandleType::isJavaCompatible() const { |
| return false; |
| } |
| |
| void HandleType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| *align = *size = 8; |
| } |
| |
| } // namespace android |
| |