aosp12/art/libprofile/profile/profile_boot_info.h

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2.3 KiB
C++

/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_LIBPROFILE_PROFILE_PROFILE_BOOT_INFO_H_
#define ART_LIBPROFILE_PROFILE_PROFILE_BOOT_INFO_H_
#include <vector>
#include "base/value_object.h"
namespace art {
class DexFile;
/**
* Abstraction over a list of methods representing the boot profile
* of an application. The order in the list is the order in which the methods
* should be compiled.
*
* TODO: This is currently implemented as a separate profile to
* ProfileCompilationInfo to enable fast experiments, but we are likely to
* incorporate it in ProfileCompilationInfo once we settle on an automated way
* to generate such a boot profile.
*/
class ProfileBootInfo : public ValueObject {
public:
// Add the given method located in the given dex file in the profile.
void Add(const DexFile* dex_file, uint32_t method_index);
// Save this profile boot info into the `fd` file descriptor.
bool Save(int fd) const;
// Load the profile listing from `fd` into this profile boot info. Note that
// the profile boot info will store internally the dex files being passed.
bool Load(int fd, const std::vector<const DexFile*>& dex_files);
const std::vector<const DexFile*>& GetDexFiles() const {
return dex_files_;
}
const std::vector<std::pair<uint32_t, uint32_t>>& GetMethods() const {
return methods_;
}
bool IsEmpty() const { return dex_files_.empty() && methods_.empty(); }
private:
// List of dex files this boot profile info covers.
std::vector<const DexFile*> dex_files_;
// List of pair of <dex file index, method_id> methods to be compiled in
// order.
std::vector<std::pair<uint32_t, uint32_t>> methods_;
};
} // namespace art
#endif // ART_LIBPROFILE_PROFILE_PROFILE_BOOT_INFO_H_