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 | |
Yifan Hong | abf73ee | 2016-12-05 18:47:00 -0800 | [diff] [blame] | 30 | bool HandleType::isHandle() const { |
| 31 | return true; |
| 32 | } |
| 33 | |
Martijn Coenen | ac58789 | 2016-11-17 15:14:19 +0100 | [diff] [blame] | 34 | std::string HandleType::getCppType(StorageMode mode, |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 35 | bool specifyNamespaces) const { |
Steven Moreland | 979e099 | 2016-09-07 09:18:08 -0700 | [diff] [blame] | 36 | const std::string base = |
Martijn Coenen | 2f69a5b | 2016-11-18 15:26:38 +0100 | [diff] [blame] | 37 | std::string(specifyNamespaces ? "::android::hardware::" : "") |
| 38 | + "hidl_handle"; |
| 39 | |
| 40 | switch (mode) { |
| 41 | case StorageMode_Stack: |
| 42 | return base; |
| 43 | |
| 44 | case StorageMode_Argument: |
| 45 | return "const " + base + "&"; |
| 46 | |
| 47 | case StorageMode_Result: |
| 48 | return base; |
Martijn Coenen | ac58789 | 2016-11-17 15:14:19 +0100 | [diff] [blame] | 49 | } |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 50 | } |
| 51 | |
Zhuoyao Zhang | ae83dcd | 2016-11-29 12:48:28 -0800 | [diff] [blame] | 52 | std::string HandleType::getVtsType() const { |
| 53 | return "TYPE_HANDLE"; |
| 54 | } |
| 55 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 56 | void HandleType::emitReaderWriter( |
| 57 | Formatter &out, |
| 58 | const std::string &name, |
| 59 | const std::string &parcelObj, |
| 60 | bool parcelObjIsPointer, |
| 61 | bool isReader, |
| 62 | ErrorMode mode) const { |
| 63 | const std::string parcelObjDeref = |
| 64 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 65 | |
| 66 | if (isReader) { |
| 67 | out << name |
| 68 | << " = " |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 69 | << parcelObjDeref |
| 70 | << "readNativeHandleNoDup();\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 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 | out << parcelObjDeref |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 86 | << "writeNativeHandleNoDup(" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 87 | << name |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 88 | << ");\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 89 | |
| 90 | handleError(out, mode); |
| 91 | } |
| 92 | } |
| 93 | |
Yifan Hong | 244e82d | 2016-11-11 11:13:57 -0800 | [diff] [blame] | 94 | bool HandleType::useNameInEmitReaderWriterEmbedded(bool isReader) const { |
| 95 | return !isReader; |
| 96 | } |
| 97 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 98 | void HandleType::emitReaderWriterEmbedded( |
| 99 | Formatter &out, |
Andreas Huber | f9d49f1 | 2016-09-12 14:58:36 -0700 | [diff] [blame] | 100 | size_t /* depth */, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 101 | const std::string &name, |
Yifan Hong | be2a373 | 2016-10-05 13:33:41 -0700 | [diff] [blame] | 102 | const std::string &sanitizedName, |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 103 | bool nameIsPointer, |
| 104 | const std::string &parcelObj, |
| 105 | bool parcelObjIsPointer, |
| 106 | bool isReader, |
| 107 | ErrorMode mode, |
| 108 | const std::string &parentName, |
| 109 | const std::string &offsetText) const { |
| 110 | if (isReader) { |
Yifan Hong | be2a373 | 2016-10-05 13:33:41 -0700 | [diff] [blame] | 111 | const std::string ptrName = "_hidl_" + sanitizedName + "_ptr"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 112 | |
| 113 | out << "const native_handle_t *" |
| 114 | << ptrName |
| 115 | << " = " |
| 116 | << parcelObj |
| 117 | << (parcelObjIsPointer ? "->" : ".") |
| 118 | << "readEmbeddedNativeHandle(\n"; |
| 119 | |
| 120 | out.indent(); |
| 121 | out.indent(); |
| 122 | |
| 123 | out << parentName |
| 124 | << ",\n" |
| 125 | << offsetText |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 126 | << ");\n\n"; |
| 127 | |
| 128 | out.unindent(); |
| 129 | out.unindent(); |
| 130 | |
| 131 | out << "if (" |
| 132 | << ptrName |
| 133 | << " == nullptr) {\n"; |
| 134 | |
| 135 | out.indent(); |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 136 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 137 | handleError2(out, mode); |
| 138 | out.unindent(); |
| 139 | out << "}\n\n"; |
| 140 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 141 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 142 | << parcelObj |
| 143 | << (parcelObjIsPointer ? "->" : ".") |
| 144 | << "writeEmbeddedNativeHandle(\n"; |
| 145 | |
| 146 | out.indent(); |
| 147 | out.indent(); |
| 148 | |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 149 | out << (nameIsPointer ? ("*" + name) : name) |
| 150 | << ",\n" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 151 | << parentName |
| 152 | << ",\n" |
| 153 | << offsetText |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 154 | << ");\n\n"; |
| 155 | |
| 156 | out.unindent(); |
| 157 | out.unindent(); |
| 158 | |
| 159 | handleError(out, mode); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | bool HandleType::needsEmbeddedReadWrite() const { |
| 164 | return true; |
| 165 | } |
| 166 | |
Andreas Huber | 70a59e1 | 2016-08-16 12:57:01 -0700 | [diff] [blame] | 167 | bool HandleType::isJavaCompatible() const { |
| 168 | return false; |
| 169 | } |
| 170 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 171 | void HandleType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 172 | *align = *size = 8; |
| 173 | } |
| 174 | |
Zhuoyao Zhang | ae83dcd | 2016-11-29 12:48:28 -0800 | [diff] [blame] | 175 | status_t HandleType::emitVtsTypeDeclarations(Formatter &out) const { |
| 176 | out << "type: " << getVtsType() << "\n"; |
| 177 | return OK; |
| 178 | } |
| 179 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 180 | } // namespace android |
| 181 | |