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 | |
| 19 | #include "Formatter.h" |
| 20 | |
| 21 | namespace android { |
| 22 | |
| 23 | StringType::StringType() {} |
| 24 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 25 | std::string StringType::getCppType(StorageMode mode, std::string *extra) const { |
| 26 | extra->clear(); |
| 27 | |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 28 | const std::string base = "::android::hardware::hidl_string"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 29 | |
| 30 | switch (mode) { |
| 31 | case StorageMode_Stack: |
| 32 | return base; |
| 33 | |
| 34 | case StorageMode_Argument: |
| 35 | return "const " + base + "&"; |
| 36 | |
| 37 | case StorageMode_Result: |
| 38 | return "const " + base + "*"; |
| 39 | } |
| 40 | } |
| 41 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 42 | std::string StringType::getJavaType() const { |
| 43 | return "String"; |
| 44 | } |
| 45 | |
| 46 | std::string StringType::getJavaSuffix() const { |
| 47 | return "String"; |
| 48 | } |
| 49 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 50 | void StringType::emitReaderWriter( |
| 51 | Formatter &out, |
| 52 | const std::string &name, |
| 53 | const std::string &parcelObj, |
| 54 | bool parcelObjIsPointer, |
| 55 | bool isReader, |
| 56 | ErrorMode mode) const { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 57 | const std::string parentName = "_hidl_" + name + "_parent"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 58 | out << "size_t " << parentName << ";\n\n"; |
| 59 | |
| 60 | const std::string parcelObjDeref = |
| 61 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 62 | |
| 63 | if (isReader) { |
| 64 | out << name |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 65 | << " = (const ::android::hardware::hidl_string *)" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 66 | << parcelObjDeref |
| 67 | << "readBuffer(" |
| 68 | << "&" |
| 69 | << parentName |
| 70 | << ");\n"; |
| 71 | |
| 72 | out << "if (" |
| 73 | << name |
| 74 | << " == nullptr) {\n"; |
| 75 | |
| 76 | out.indent(); |
| 77 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 78 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 79 | handleError2(out, mode); |
| 80 | |
| 81 | out.unindent(); |
| 82 | out << "}\n\n"; |
| 83 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 84 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 85 | << parcelObjDeref |
| 86 | << "writeBuffer(&" |
| 87 | << name |
| 88 | << ", sizeof(" |
| 89 | << name |
| 90 | << "), &" |
| 91 | << parentName |
| 92 | << ");\n"; |
| 93 | |
| 94 | handleError(out, mode); |
| 95 | } |
| 96 | |
| 97 | emitReaderWriterEmbedded( |
| 98 | out, |
| 99 | name, |
| 100 | isReader /* nameIsPointer */, |
| 101 | parcelObj, |
| 102 | parcelObjIsPointer, |
| 103 | isReader, |
| 104 | mode, |
| 105 | parentName, |
| 106 | "0 /* parentOffset */"); |
| 107 | } |
| 108 | |
| 109 | void StringType::emitReaderWriterEmbedded( |
| 110 | Formatter &out, |
| 111 | const std::string &name, |
| 112 | bool nameIsPointer, |
| 113 | const std::string &parcelObj, |
| 114 | bool parcelObjIsPointer, |
| 115 | bool isReader, |
| 116 | ErrorMode mode, |
| 117 | const std::string &parentName, |
| 118 | const std::string &offsetText) const { |
| 119 | emitReaderWriterEmbeddedForTypeName( |
| 120 | out, |
| 121 | name, |
| 122 | nameIsPointer, |
| 123 | parcelObj, |
| 124 | parcelObjIsPointer, |
| 125 | isReader, |
| 126 | mode, |
| 127 | parentName, |
| 128 | offsetText, |
Andreas Huber | 8a82ff7 | 2016-08-04 10:29:39 -0700 | [diff] [blame] | 129 | "::android::hardware::hidl_string", |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 130 | "" /* childName */); |
| 131 | } |
| 132 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 133 | void StringType::emitJavaFieldInitializer( |
| 134 | Formatter &out, const std::string &fieldName) const { |
| 135 | out << "String " |
| 136 | << fieldName |
| 137 | << " = new String();\n"; |
| 138 | } |
| 139 | |
| 140 | void StringType::emitJavaFieldReaderWriter( |
| 141 | Formatter &out, |
| 142 | const std::string &blobName, |
| 143 | const std::string &fieldName, |
| 144 | const std::string &offset, |
| 145 | bool isReader) const { |
| 146 | if (isReader) { |
| 147 | out << "\nparcel.readEmbeddedBuffer(\n"; |
| 148 | |
| 149 | out.indent(); |
| 150 | out.indent(); |
| 151 | |
| 152 | out << blobName |
| 153 | << ".handle(),\n" |
| 154 | << offset |
| 155 | << " + 0 /* offsetof(hidl_string, mBuffer) */);\n\n"; |
| 156 | |
| 157 | out.unindent(); |
| 158 | out.unindent(); |
| 159 | |
| 160 | out << fieldName |
| 161 | << " = " |
| 162 | << blobName |
| 163 | << ".getString(" |
| 164 | << offset |
| 165 | << ");\n"; |
| 166 | |
| 167 | return; |
| 168 | } |
| 169 | |
| 170 | out << blobName |
| 171 | << ".putString(" |
| 172 | << offset |
| 173 | << ", " |
| 174 | << fieldName |
| 175 | << ");\n"; |
| 176 | } |
| 177 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 178 | bool StringType::needsEmbeddedReadWrite() const { |
| 179 | return true; |
| 180 | } |
| 181 | |
| 182 | bool StringType::resultNeedsDeref() const { |
| 183 | return true; |
| 184 | } |
| 185 | |
Zhuoyao Zhang | 5158db4 | 2016-08-10 10:25:20 -0700 | [diff] [blame] | 186 | status_t StringType::emitVtsTypeDeclarations(Formatter &out) const { |
| 187 | out << "type: TYPE_STRING\n"; |
| 188 | return OK; |
| 189 | } |
| 190 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 191 | void StringType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 192 | *align = 8; // hidl_string |
| 193 | *size = 24; |
| 194 | } |
| 195 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 196 | } // namespace android |
| 197 | |