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 "HandleType.h" |
| 18 | |
Iliyan Malchev | a72e0d2 | 2016-09-09 11:03:08 -0700 | [diff] [blame] | 19 | #include <hidl-util/Formatter.h> |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 20 | #include <android-base/logging.h> |
| 21 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 22 | namespace android { |
| 23 | |
| 24 | HandleType::HandleType() {} |
| 25 | |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 26 | void HandleType::addNamedTypesToSet(std::set<const FQName> &) const { |
| 27 | // do nothing |
| 28 | } |
| 29 | |
| 30 | std::string HandleType::getCppType(StorageMode, |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 31 | bool specifyNamespaces) const { |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 32 | const std::string base = |
| 33 | std::string(specifyNamespaces ? "::" : "") |
| 34 | + "native_handle_t"; |
| 35 | |
| 36 | return "const " + base + "*"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 37 | } |
| 38 | |
| 39 | void HandleType::emitReaderWriter( |
| 40 | Formatter &out, |
| 41 | const std::string &name, |
| 42 | const std::string &parcelObj, |
| 43 | bool parcelObjIsPointer, |
| 44 | bool isReader, |
| 45 | ErrorMode mode) const { |
| 46 | const std::string parcelObjDeref = |
| 47 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 48 | |
| 49 | if (isReader) { |
| 50 | out << name |
| 51 | << " = " |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 52 | << parcelObjDeref |
| 53 | << "readNativeHandleNoDup();\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 54 | |
| 55 | out << "if (" |
| 56 | << name |
| 57 | << " == nullptr) {\n"; |
| 58 | |
| 59 | out.indent(); |
| 60 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 61 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 62 | handleError2(out, mode); |
| 63 | |
| 64 | out.unindent(); |
| 65 | out << "}\n\n"; |
| 66 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 67 | out << "_hidl_err = "; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 68 | out << parcelObjDeref |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 69 | << "writeNativeHandleNoDup(" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 70 | << name |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 71 | << ");\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 72 | |
| 73 | handleError(out, mode); |
| 74 | } |
| 75 | } |
| 76 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 77 | bool HandleType::useNameInEmitReaderWriterEmbedded(bool isReader) const { |
| 78 | return !isReader; |
| 79 | } |
| 80 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 81 | void HandleType::emitReaderWriterEmbedded( |
| 82 | Formatter &out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 83 | size_t /* depth */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 84 | const std::string &name, |
Yifan Hong | be2a373 | 2016-10-05 13:33:41 -0700 | [diff] [blame] | 85 | const std::string &sanitizedName, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 86 | bool nameIsPointer, |
| 87 | const std::string &parcelObj, |
| 88 | bool parcelObjIsPointer, |
| 89 | bool isReader, |
| 90 | ErrorMode mode, |
| 91 | const std::string &parentName, |
| 92 | const std::string &offsetText) const { |
| 93 | if (isReader) { |
Yifan Hong | be2a373 | 2016-10-05 13:33:41 -0700 | [diff] [blame] | 94 | const std::string ptrName = "_hidl_" + sanitizedName + "_ptr"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 95 | |
| 96 | out << "const native_handle_t *" |
| 97 | << ptrName |
| 98 | << " = " |
| 99 | << parcelObj |
| 100 | << (parcelObjIsPointer ? "->" : ".") |
| 101 | << "readEmbeddedNativeHandle(\n"; |
| 102 | |
| 103 | out.indent(); |
| 104 | out.indent(); |
| 105 | |
| 106 | out << parentName |
| 107 | << ",\n" |
| 108 | << offsetText |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 109 | << ");\n\n"; |
| 110 | |
| 111 | out.unindent(); |
| 112 | out.unindent(); |
| 113 | |
| 114 | out << "if (" |
| 115 | << ptrName |
| 116 | << " == nullptr) {\n"; |
| 117 | |
| 118 | out.indent(); |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 119 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 120 | handleError2(out, mode); |
| 121 | out.unindent(); |
| 122 | out << "}\n\n"; |
| 123 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 124 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 125 | << parcelObj |
| 126 | << (parcelObjIsPointer ? "->" : ".") |
| 127 | << "writeEmbeddedNativeHandle(\n"; |
| 128 | |
| 129 | out.indent(); |
| 130 | out.indent(); |
| 131 | |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 132 | out << (nameIsPointer ? ("*" + name) : name) |
| 133 | << ",\n" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 134 | << parentName |
| 135 | << ",\n" |
| 136 | << offsetText |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 137 | << ");\n\n"; |
| 138 | |
| 139 | out.unindent(); |
| 140 | out.unindent(); |
| 141 | |
| 142 | handleError(out, mode); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | bool HandleType::needsEmbeddedReadWrite() const { |
| 147 | return true; |
| 148 | } |
| 149 | |
Andreas Huber | 70a59e1 | 2016-08-16 12:57:01 -0700 | [diff] [blame] | 150 | bool HandleType::isJavaCompatible() const { |
| 151 | return false; |
| 152 | } |
| 153 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 154 | void HandleType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 155 | *align = *size = 8; |
| 156 | } |
| 157 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 158 | } // namespace android |
| 159 | |