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 | |
| 19 | #include "Formatter.h" |
| 20 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 21 | #include <android-base/logging.h> |
| 22 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 23 | namespace android { |
| 24 | |
| 25 | HandleType::HandleType() {} |
| 26 | |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 27 | std::string HandleType::getCppType(StorageMode, std::string *extra) const { |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 28 | extra->clear(); |
| 29 | |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 30 | return "const ::native_handle_t*"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 31 | } |
| 32 | |
Andreas Huber | 2831d51 | 2016-08-15 09:33:47 -0700 | [diff] [blame] | 33 | std::string HandleType::getJavaType() const { |
| 34 | CHECK(!"Should not be here"); |
| 35 | return std::string(); |
| 36 | } |
| 37 | |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 38 | void HandleType::emitReaderWriter( |
| 39 | Formatter &out, |
| 40 | const std::string &name, |
| 41 | const std::string &parcelObj, |
| 42 | bool parcelObjIsPointer, |
| 43 | bool isReader, |
| 44 | ErrorMode mode) const { |
| 45 | const std::string parcelObjDeref = |
| 46 | parcelObj + (parcelObjIsPointer ? "->" : "."); |
| 47 | |
| 48 | if (isReader) { |
| 49 | out << name |
| 50 | << " = " |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 51 | << parcelObjDeref |
| 52 | << "readNativeHandleNoDup();\n\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 53 | |
| 54 | out << "if (" |
| 55 | << name |
| 56 | << " == nullptr) {\n"; |
| 57 | |
| 58 | out.indent(); |
| 59 | |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 60 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 61 | handleError2(out, mode); |
| 62 | |
| 63 | out.unindent(); |
| 64 | out << "}\n\n"; |
| 65 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 66 | out << "_hidl_err = "; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 67 | out << parcelObjDeref |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 68 | << "writeNativeHandleNoDup(" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 69 | << name |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 70 | << ");\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 71 | |
| 72 | handleError(out, mode); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | void HandleType::emitReaderWriterEmbedded( |
| 77 | Formatter &out, |
| 78 | const std::string &name, |
| 79 | bool nameIsPointer, |
| 80 | const std::string &parcelObj, |
| 81 | bool parcelObjIsPointer, |
| 82 | bool isReader, |
| 83 | ErrorMode mode, |
| 84 | const std::string &parentName, |
| 85 | const std::string &offsetText) const { |
| 86 | if (isReader) { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 87 | const std::string ptrName = "_hidl_" + name + "_ptr"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 88 | |
| 89 | out << "const native_handle_t *" |
| 90 | << ptrName |
| 91 | << " = " |
| 92 | << parcelObj |
| 93 | << (parcelObjIsPointer ? "->" : ".") |
| 94 | << "readEmbeddedNativeHandle(\n"; |
| 95 | |
| 96 | out.indent(); |
| 97 | out.indent(); |
| 98 | |
| 99 | out << parentName |
| 100 | << ",\n" |
| 101 | << offsetText |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 102 | << ");\n\n"; |
| 103 | |
| 104 | out.unindent(); |
| 105 | out.unindent(); |
| 106 | |
| 107 | out << "if (" |
| 108 | << ptrName |
| 109 | << " == nullptr) {\n"; |
| 110 | |
| 111 | out.indent(); |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 112 | out << "_hidl_err = ::android::UNKNOWN_ERROR;\n"; |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 113 | handleError2(out, mode); |
| 114 | out.unindent(); |
| 115 | out << "}\n\n"; |
| 116 | } else { |
Iliyan Malchev | 549e259 | 2016-08-10 08:59:12 -0700 | [diff] [blame] | 117 | out << "_hidl_err = " |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 118 | << parcelObj |
| 119 | << (parcelObjIsPointer ? "->" : ".") |
| 120 | << "writeEmbeddedNativeHandle(\n"; |
| 121 | |
| 122 | out.indent(); |
| 123 | out.indent(); |
| 124 | |
Andreas Huber | e852c7d | 2016-08-09 13:12:18 -0700 | [diff] [blame] | 125 | out << (nameIsPointer ? ("*" + name) : name) |
| 126 | << ",\n" |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 127 | << parentName |
| 128 | << ",\n" |
| 129 | << offsetText |
Andreas Huber | 881227d | 2016-08-02 14:20:21 -0700 | [diff] [blame] | 130 | << ");\n\n"; |
| 131 | |
| 132 | out.unindent(); |
| 133 | out.unindent(); |
| 134 | |
| 135 | handleError(out, mode); |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | bool HandleType::needsEmbeddedReadWrite() const { |
| 140 | return true; |
| 141 | } |
| 142 | |
Andreas Huber | 70a59e1 | 2016-08-16 12:57:01 -0700 | [diff] [blame] | 143 | bool HandleType::isJavaCompatible() const { |
| 144 | return false; |
| 145 | } |
| 146 | |
Andreas Huber | 85eabdb | 2016-08-25 11:24:49 -0700 | [diff] [blame] | 147 | void HandleType::getAlignmentAndSize(size_t *align, size_t *size) const { |
| 148 | *align = *size = 8; |
| 149 | } |
| 150 | |
Andreas Huber | c9410c7 | 2016-07-28 12:18:40 -0700 | [diff] [blame] | 151 | } // namespace android |
| 152 | |