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 | |
Andreas Huber | 6755e9d | 2017-04-06 11:09:07 -0700 | [diff] [blame] | 19 | #include "HidlTypeAssertion.h" |
| 20 | |
Iliyan Malchev | a72e0d2 | 2016-09-09 11:03:08 -0700 | [diff] [blame] | 21 | #include <hidl-util/Formatter.h> |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 22 | #include <android-base/logging.h> |
| 23 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 24 | namespace android { |
| 25 | |
Timur Iskhakov | 63f3990 | 2017-08-29 15:47:29 -0700 | [diff] [blame] | 26 | HandleType::HandleType(Scope* parent) : Type(parent) {} |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 27 | |
Yifan Hong | abf73ee | 2016-12-05 18:47:00 -0800 | [diff] [blame] | 28 | bool HandleType::isHandle() const { |
| 29 | return true; |
| 30 | } |
| 31 | |
Steven Moreland | 0ecc7b8 | 2017-07-19 12:59:23 -0700 | [diff] [blame] | 32 | std::string HandleType::typeName() const { |
| 33 | return "handle"; |
| 34 | } |
| 35 | |
Martijn Coenen | ac58789 | 2016-11-17 15:14:19 +0100 | [diff] [blame] | 36 | std::string HandleType::getCppType(StorageMode mode, |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 37 | bool specifyNamespaces) const { |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 38 | const std::string base = |
Martijn Coenen | 2f69a5b | 2016-11-18 15:26:38 +0100 | [diff] [blame] | 39 | std::string(specifyNamespaces ? "::android::hardware::" : "") |
| 40 | + "hidl_handle"; |
| 41 | |
| 42 | switch (mode) { |
| 43 | case StorageMode_Stack: |
| 44 | return base; |
| 45 | |
| 46 | case StorageMode_Argument: |
| 47 | return "const " + base + "&"; |
| 48 | |
| 49 | case StorageMode_Result: |
| 50 | return base; |
Martijn Coenen | ac58789 | 2016-11-17 15:14:19 +0100 | [diff] [blame] | 51 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 52 | } |
| 53 | |
Nirav Atre | 97b7e9c | 2018-07-26 19:29:40 -0700 | [diff] [blame] | 54 | std::string HandleType::getJavaType(bool /* forInitializer */) const { |
| 55 | return "android.os.NativeHandle"; |
| 56 | } |
| 57 | |
| 58 | std::string HandleType::getJavaSuffix() const { |
| 59 | return "NativeHandle"; |
| 60 | } |
| 61 | |
Zhuoyao Zhang | ae83dcd | 2016-11-29 12:48:28 -0800 | [diff] [blame] | 62 | std::string HandleType::getVtsType() const { |
| 63 | return "TYPE_HANDLE"; |
| 64 | } |
| 65 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 66 | void HandleType::emitReaderWriter( |
| 67 | Formatter &out, |
| 68 | const std::string &name, |
| 69 | const std::string &parcelObj, |
| 70 | bool parcelObjIsPointer, |
| 71 | bool isReader, |
| 72 | ErrorMode mode) const { |
| 73 | const std::string parcelObjDeref = |
| 74 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 75 | |
| 76 | if (isReader) { |
Martijn Coenen | 6a082c6 | 2017-01-11 12:47:02 +0100 | [diff] [blame] | 77 | out << "const native_handle_t *" |
| 78 | << name << "_ptr;\n\n"; |
| 79 | |
| 80 | out << "_hidl_err = " |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 81 | << parcelObjDeref |
Martijn Coenen | 9d97da2 | 2017-01-12 17:29:47 +0100 | [diff] [blame] | 82 | << "readNullableNativeHandleNoDup(" |
Martijn Coenen | 6a082c6 | 2017-01-11 12:47:02 +0100 | [diff] [blame] | 83 | << "&" << name << "_ptr" |
| 84 | << ");\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 85 | |
Martijn Coenen | 6a082c6 | 2017-01-11 12:47:02 +0100 | [diff] [blame] | 86 | handleError(out, mode); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 87 | |
Martijn Coenen | 6a082c6 | 2017-01-11 12:47:02 +0100 | [diff] [blame] | 88 | out << name << " = " << name << "_ptr;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 89 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 90 | out << "_hidl_err = "; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 91 | out << parcelObjDeref |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 92 | << "writeNativeHandleNoDup(" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 93 | << name |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 94 | << ");\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 95 | |
| 96 | handleError(out, mode); |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | void HandleType::emitReaderWriterEmbedded( |
| 101 | Formatter &out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 102 | size_t /* depth */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 103 | const std::string &name, |
Nirav Atre | 97b7e9c | 2018-07-26 19:29:40 -0700 | [diff] [blame] | 104 | const std::string & /* sanitizedName */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 105 | bool nameIsPointer, |
| 106 | const std::string &parcelObj, |
| 107 | bool parcelObjIsPointer, |
| 108 | bool isReader, |
| 109 | ErrorMode mode, |
| 110 | const std::string &parentName, |
| 111 | const std::string &offsetText) const { |
Nirav Atre | 97b7e9c | 2018-07-26 19:29:40 -0700 | [diff] [blame] | 112 | emitReaderWriterEmbeddedForTypeName( |
| 113 | out, |
| 114 | name, |
| 115 | nameIsPointer, |
| 116 | parcelObj, |
| 117 | parcelObjIsPointer, |
| 118 | isReader, |
| 119 | mode, |
| 120 | parentName, |
| 121 | offsetText, |
| 122 | "::android::hardware::hidl_handle", |
| 123 | "" /* childName */, |
| 124 | "::android::hardware"); |
| 125 | } |
| 126 | |
| 127 | void HandleType::emitJavaFieldInitializer( |
| 128 | Formatter &out, const std::string &fieldName) const { |
| 129 | const std::string fieldDeclaration = getJavaType(false) + " " + fieldName; |
| 130 | emitJavaFieldDefaultInitialValue(out, fieldDeclaration); |
| 131 | } |
| 132 | |
| 133 | void HandleType::emitJavaFieldDefaultInitialValue( |
| 134 | Formatter &out, const std::string &declaredFieldName) const { |
| 135 | out << declaredFieldName |
| 136 | << " = new " |
| 137 | << getJavaType(true) |
| 138 | << "();\n"; |
| 139 | } |
| 140 | |
| 141 | void HandleType::emitJavaFieldReaderWriter( |
| 142 | Formatter &out, |
| 143 | size_t /* depth */, |
| 144 | const std::string &parcelName, |
| 145 | const std::string &blobName, |
| 146 | const std::string &fieldName, |
| 147 | const std::string &offset, |
| 148 | bool isReader) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 149 | if (isReader) { |
Nirav Atre | 97b7e9c | 2018-07-26 19:29:40 -0700 | [diff] [blame] | 150 | out << fieldName |
| 151 | << " = " |
| 152 | << parcelName |
| 153 | << ".readEmbeddedNativeHandle(\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 154 | |
Nirav Atre | 97b7e9c | 2018-07-26 19:29:40 -0700 | [diff] [blame] | 155 | out.indent(2, [&] { |
| 156 | out << blobName |
| 157 | << ".handle(),\n" |
| 158 | << offset |
| 159 | << " + 0 /* offsetof(hidl_handle, mHandle) */);\n\n"; |
| 160 | }); |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 161 | |
Nirav Atre | 97b7e9c | 2018-07-26 19:29:40 -0700 | [diff] [blame] | 162 | return; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 163 | } |
Nirav Atre | 97b7e9c | 2018-07-26 19:29:40 -0700 | [diff] [blame] | 164 | |
| 165 | out << blobName |
| 166 | << ".putNativeHandle(" |
| 167 | << offset |
| 168 | << ", " |
| 169 | << fieldName |
| 170 | << ");\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | bool HandleType::needsEmbeddedReadWrite() const { |
| 174 | return true; |
| 175 | } |
| 176 | |
Timur Iskhakov | 5dc72fe | 2017-09-07 23:13:44 -0700 | [diff] [blame] | 177 | bool HandleType::deepIsJavaCompatible(std::unordered_set<const Type*>* /* visited */) const { |
Nirav Atre | 97b7e9c | 2018-07-26 19:29:40 -0700 | [diff] [blame] | 178 | return true; |
Andreas Huber | 70a59e1 | 2016-08-16 12:57:01 -0700 | [diff] [blame] | 179 | } |
| 180 | |
Andreas Huber | 6755e9d | 2017-04-06 11:09:07 -0700 | [diff] [blame] | 181 | static HidlTypeAssertion assertion("hidl_handle", 16 /* size */); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 182 | void HandleType::getAlignmentAndSize(size_t *align, size_t *size) const { |
Andreas Huber | 60d3b22 | 2017-03-30 09:10:56 -0700 | [diff] [blame] | 183 | *align = 8; // hidl_handle |
Andreas Huber | 6755e9d | 2017-04-06 11:09:07 -0700 | [diff] [blame] | 184 | *size = assertion.size(); |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 185 | } |
| 186 | |
Steven Moreland | 6ec9eb9 | 2018-02-16 14:21:49 -0800 | [diff] [blame] | 187 | void HandleType::emitVtsTypeDeclarations(Formatter& out) const { |
Zhuoyao Zhang | ae83dcd | 2016-11-29 12:48:28 -0800 | [diff] [blame] | 188 | out << "type: " << getVtsType() << "\n"; |
Zhuoyao Zhang | ae83dcd | 2016-11-29 12:48:28 -0800 | [diff] [blame] | 189 | } |
| 190 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 191 | } // namespace android |
| 192 | |