1 /* 2 * Copyright (C) 2017 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 17 18 #ifndef ANDROID_VINTF_VERSION_H 19 #define ANDROID_VINTF_VERSION_H 20 21 #include <stdint.h> 22 #include <string> 23 #include <utility> 24 25 namespace android { 26 namespace vintf { 27 28 struct Version { 29 VersionVersion30 constexpr Version() : Version(0u, 0u) {} VersionVersion31 constexpr Version(size_t mj, size_t mi) : majorVer(mj), minorVer(mi) {} 32 33 size_t majorVer; 34 size_t minorVer; 35 36 inline bool operator==(const Version &other) const { 37 return majorVer == other.majorVer && minorVer == other.minorVer; 38 } 39 inline bool operator!=(const Version &other) const { 40 return !((*this) == other); 41 } 42 inline bool operator<(const Version &other) const { 43 if (majorVer < other.majorVer) 44 return true; 45 if (majorVer > other.majorVer) 46 return false; 47 return minorVer < other.minorVer; 48 } 49 inline bool operator>(const Version &other) const { 50 return other < (*this); 51 } 52 inline bool operator<=(const Version &other) const { 53 return !((*this) > other); 54 } 55 inline bool operator>=(const Version &other) const { 56 return !((*this) < other); 57 } 58 // Version(2, 1).minorAtLeast(Version(1, 0)) == false 59 // Version(2, 1).minorAtLeast(Version(2, 0)) == true 60 // Version(2, 1).minorAtLeast(Version(2, 1)) == true 61 // Version(2, 1).minorAtLeast(Version(2, 2)) == false minorAtLeastVersion62 inline bool minorAtLeast(const Version& other) const { 63 return majorVer == other.majorVer && minorVer >= other.minorVer; 64 } 65 }; 66 67 struct KernelVersion { 68 KernelVersionKernelVersion69 constexpr KernelVersion() : KernelVersion(0u, 0u, 0u) {} KernelVersionKernelVersion70 constexpr KernelVersion(size_t v, size_t mj, size_t mi) : 71 version(v), majorRev(mj), minorRev(mi) {} 72 73 size_t version; 74 size_t majorRev; 75 size_t minorRev; 76 77 inline bool operator==(const KernelVersion &other) const { 78 return version == other.version 79 && majorRev == other.majorRev 80 && minorRev == other.minorRev; 81 } 82 inline bool operator!=(const KernelVersion &other) const { 83 return !((*this) == other); 84 } 85 }; 86 87 } // namespace vintf 88 } // namespace android 89 90 #endif // ANDROID_VINTF_VERSION_H 91