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64 lines
2.1 KiB
64 lines
2.1 KiB
4 months ago
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// Copyright (C) 2020 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#pragma once
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#include <stdint.h>
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#include <optional>
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#include <string>
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#include <kver/kmi_version.h>
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namespace android::kver {
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// Kernel release is a unique identifier of a GKI binary.
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// Example: 5.4.42-android12-0
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class KernelRelease {
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public:
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// Parse a string like "5.4.42-android12-0" to a KernelRelease object.
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// If allow_suffix is set, allow strings like "5.4.42-android12-0-something".
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// Suffix is discarded and not stored in this object.
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// Return nullopt if any error.
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static std::optional<KernelRelease> Parse(const std::string& s, bool allow_suffix = false);
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// Return string representation of the kernel release object, excluding the suffix.
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// e.g. "5.4.42-android12-0".
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// To get the KMI version string, see kmi_version().string().
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std::string string() const;
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// Return the KMI version corresponding to this KernelRelease.
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const KmiVersion& kmi_version() const { return kmi_version_; }
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// Getters of each field.
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uint64_t version() const { return kmi_version().version(); }
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uint64_t patch_level() const { return kmi_version().patch_level(); }
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uint64_t sub_level() const { return sub_level_; }
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uint64_t android_release() const { return kmi_version().android_release(); }
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uint64_t generation() const { return kmi_version().generation(); }
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// Let a kernel release be w.x.y-androidz-k.
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// Returns (w, x, y)
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std::tuple<uint64_t, uint64_t, uint64_t> kernel_version_tuple() const;
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private:
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KernelRelease() = default;
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KmiVersion kmi_version_;
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uint64_t sub_level_ = 0;
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};
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} // namespace android::kver
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