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 "StringType.h" |
| 18 | |
Iliyan Malchev | a72e0d2 | 2016-09-09 11:03:08 -0700 | [diff] [blame] | 19 | #include <hidl-util/Formatter.h> |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 20 | |
| 21 | namespace android { |
| 22 | |
| 23 | StringType::StringType() {} |
| 24 | |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 25 | void StringType::addNamedTypesToSet(std::set<const FQName> &) const { |
| 26 | // do nothing |
| 27 | } |
| 28 | |
| 29 | std::string StringType::getCppType(StorageMode mode, |
| 30 | std::string *extra, |
| 31 | bool specifyNamespaces) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 32 | extra->clear(); |
| 33 | |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 34 | const std::string base = |
| 35 | std::string(specifyNamespaces ? "::android::hardware::" : "") |
| 36 | + "hidl_string"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 37 | |
| 38 | switch (mode) { |
| 39 | case StorageMode_Stack: |
| 40 | return base; |
| 41 | |
| 42 | case StorageMode_Argument: |
| 43 | return "const " + base + "&"; |
| 44 | |
| 45 | case StorageMode_Result: |
| 46 | return "const " + base + "*"; |
| 47 | } |
| 48 | } |
| 49 | |
Andreas Huber | 4c865b7 | 2016-09-14 15:26:27 -0700 | [diff] [blame] | 50 | std::string StringType::getJavaType( |
| 51 | std::string *extra, bool /* forInitializer */) const { |
| 52 | extra->clear(); |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 53 | return "String"; |
| 54 | } |
| 55 | |
| 56 | std::string StringType::getJavaSuffix() const { |
| 57 | return "String"; |
| 58 | } |
| 59 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 60 | void StringType::emitReaderWriter( |
| 61 | Formatter &out, |
| 62 | const std::string &name, |
| 63 | const std::string &parcelObj, |
| 64 | bool parcelObjIsPointer, |
| 65 | bool isReader, |
| 66 | ErrorMode mode) const { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 67 | const std::string parentName = "_hidl_" + name + "_parent"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 68 | out << "size_t " << parentName << ";\n\n"; |
| 69 | |
| 70 | const std::string parcelObjDeref = |
| 71 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 72 | |
| 73 | if (isReader) { |
| 74 | out << name |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 75 | << " = (const ::android::hardware::hidl_string *)" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 76 | << parcelObjDeref |
| 77 | << "readBuffer(" |
| 78 | << "&" |
| 79 | << parentName |
| 80 | << ");\n"; |
| 81 | |
| 82 | out << "if (" |
| 83 | << name |
| 84 | << " == nullptr) {\n"; |
| 85 | |
| 86 | out.indent(); |
| 87 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 88 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 89 | handleError2(out, mode); |
| 90 | |
| 91 | out.unindent(); |
| 92 | out << "}\n\n"; |
| 93 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 94 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 95 | << parcelObjDeref |
| 96 | << "writeBuffer(&" |
| 97 | << name |
| 98 | << ", sizeof(" |
| 99 | << name |
| 100 | << "), &" |
| 101 | << parentName |
| 102 | << ");\n"; |
| 103 | |
| 104 | handleError(out, mode); |
| 105 | } |
| 106 | |
| 107 | emitReaderWriterEmbedded( |
| 108 | out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 109 | 0 /* depth */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 110 | name, |
| 111 | isReader /* nameIsPointer */, |
| 112 | parcelObj, |
| 113 | parcelObjIsPointer, |
| 114 | isReader, |
| 115 | mode, |
| 116 | parentName, |
| 117 | "0 /* parentOffset */"); |
| 118 | } |
| 119 | |
| 120 | void StringType::emitReaderWriterEmbedded( |
| 121 | Formatter &out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 122 | size_t /* depth */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 123 | const std::string &name, |
| 124 | bool nameIsPointer, |
| 125 | const std::string &parcelObj, |
| 126 | bool parcelObjIsPointer, |
| 127 | bool isReader, |
| 128 | ErrorMode mode, |
| 129 | const std::string &parentName, |
| 130 | const std::string &offsetText) const { |
| 131 | emitReaderWriterEmbeddedForTypeName( |
| 132 | out, |
| 133 | name, |
| 134 | nameIsPointer, |
| 135 | parcelObj, |
| 136 | parcelObjIsPointer, |
| 137 | isReader, |
| 138 | mode, |
| 139 | parentName, |
| 140 | offsetText, |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 141 | "::android::hardware::hidl_string", |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 142 | "" /* childName */); |
| 143 | } |
| 144 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 145 | void StringType::emitJavaFieldInitializer( |
| 146 | Formatter &out, const std::string &fieldName) const { |
| 147 | out << "String " |
| 148 | << fieldName |
| 149 | << " = new String();\n"; |
| 150 | } |
| 151 | |
| 152 | void StringType::emitJavaFieldReaderWriter( |
| 153 | Formatter &out, |
Andreas Huber | 4c865b7 | 2016-09-14 15:26:27 -0700 | [diff] [blame] | 154 | size_t /* depth */, |
Andreas Huber | 709b62d | 2016-09-19 11:21:18 -0700 | [diff] [blame] | 155 | const std::string &parcelName, |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 156 | const std::string &blobName, |
| 157 | const std::string &fieldName, |
| 158 | const std::string &offset, |
| 159 | bool isReader) const { |
| 160 | if (isReader) { |
Andreas Huber | 709b62d | 2016-09-19 11:21:18 -0700 | [diff] [blame] | 161 | out << "\n" |
| 162 | << parcelName |
| 163 | << ".readEmbeddedBuffer(\n"; |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 164 | |
| 165 | out.indent(); |
| 166 | out.indent(); |
| 167 | |
| 168 | out << blobName |
| 169 | << ".handle(),\n" |
| 170 | << offset |
| 171 | << " + 0 /* offsetof(hidl_string, mBuffer) */);\n\n"; |
| 172 | |
| 173 | out.unindent(); |
| 174 | out.unindent(); |
| 175 | |
| 176 | out << fieldName |
| 177 | << " = " |
| 178 | << blobName |
| 179 | << ".getString(" |
| 180 | << offset |
| 181 | << ");\n"; |
| 182 | |
| 183 | return; |
| 184 | } |
| 185 | |
| 186 | out << blobName |
| 187 | << ".putString(" |
| 188 | << offset |
| 189 | << ", " |
| 190 | << fieldName |
| 191 | << ");\n"; |
| 192 | } |
| 193 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 194 | bool StringType::needsEmbeddedReadWrite() const { |
| 195 | return true; |
| 196 | } |
| 197 | |
| 198 | bool StringType::resultNeedsDeref() const { |
| 199 | return true; |
| 200 | } |
| 201 | |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 202 | status_t StringType::emitVtsTypeDeclarations(Formatter &out) const { |
| 203 | out << "type: TYPE_STRING\n"; |
| 204 | return OK; |
| 205 | } |
| 206 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 207 | void StringType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 208 | *align = 8; // hidl_string |
| 209 | *size = 24; |
| 210 | } |
| 211 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 212 | } // namespace android |
| 213 | |