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131 lines
5.1 KiB
131 lines
5.1 KiB
/*
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* Copyright (C) 2016 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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#ifndef ART_PROFMAN_PROFILE_ASSISTANT_H_
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#define ART_PROFMAN_PROFILE_ASSISTANT_H_
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#include <string>
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#include <vector>
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#include "base/scoped_flock.h"
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#include "profile/profile_compilation_info.h"
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namespace art {
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class ProfileAssistant {
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public:
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// These also serve as return codes of profman and are processed by installd
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// (frameworks/native/cmds/installd/commands.cpp)
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enum ProcessingResult {
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kSuccess = 0, // Generic success code for non-analysis runs.
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kCompile = 1,
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kSkipCompilationSmallDelta = 2,
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kErrorBadProfiles = 3,
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kErrorIO = 4,
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kErrorCannotLock = 5,
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kErrorDifferentVersions = 6,
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kSkipCompilationEmptyProfiles = 7,
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};
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class Options {
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public:
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static constexpr bool kForceMergeDefault = false;
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static constexpr bool kBootImageMergeDefault = false;
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static constexpr uint32_t kMinNewMethodsPercentChangeForCompilation = 20;
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static constexpr uint32_t kMinNewClassesPercentChangeForCompilation = 20;
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Options()
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: force_merge_(kForceMergeDefault),
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boot_image_merge_(kBootImageMergeDefault),
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min_new_methods_percent_change_for_compilation_(
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kMinNewMethodsPercentChangeForCompilation),
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min_new_classes_percent_change_for_compilation_(
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kMinNewClassesPercentChangeForCompilation) {
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}
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bool IsForceMerge() const { return force_merge_; }
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bool IsBootImageMerge() const { return boot_image_merge_; }
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uint32_t GetMinNewMethodsPercentChangeForCompilation() const {
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return min_new_methods_percent_change_for_compilation_;
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}
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uint32_t GetMinNewClassesPercentChangeForCompilation() const {
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return min_new_classes_percent_change_for_compilation_;
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}
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void SetForceMerge(bool value) { force_merge_ = value; }
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void SetBootImageMerge(bool value) { boot_image_merge_ = value; }
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void SetMinNewMethodsPercentChangeForCompilation(uint32_t value) {
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min_new_methods_percent_change_for_compilation_ = value;
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}
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void SetMinNewClassesPercentChangeForCompilation(uint32_t value) {
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min_new_classes_percent_change_for_compilation_ = value;
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}
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private:
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// If true, performs a forced merge, without analyzing if there is a
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// significant difference between the current profile and the reference profile.
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// See ProfileAssistant#ProcessProfile.
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bool force_merge_;
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// Signals that the merge is for boot image profiles. It will ignore differences
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// in profile versions (instead of aborting).
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bool boot_image_merge_;
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uint32_t min_new_methods_percent_change_for_compilation_;
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uint32_t min_new_classes_percent_change_for_compilation_;
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};
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// Process the profile information present in the given files. Returns one of
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// ProcessingResult values depending on profile information and whether or not
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// the analysis ended up successfully (i.e. no errors during reading,
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// merging or writing of profile files).
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//
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// When the returned value is kCompile there is a significant difference
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// between profile_files and reference_profile_files. In this case
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// reference_profile will be updated with the profiling info obtain after
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// merging all profiles.
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//
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// When the returned value is kSkipCompilationSmallDelta, the difference between
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// the merge of the current profiles and the reference one is insignificant. In
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// this case no file will be updated. A variation of this code is
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// kSkipCompilationEmptyProfiles which indicates that all the profiles are empty.
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// This allow the caller to make fine grain decisions on the compilation strategy.
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static ProcessingResult ProcessProfiles(
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const std::vector<std::string>& profile_files,
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const std::string& reference_profile_file,
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const ProfileCompilationInfo::ProfileLoadFilterFn& filter_fn
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= ProfileCompilationInfo::ProfileFilterFnAcceptAll,
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const Options& options = Options());
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static ProcessingResult ProcessProfiles(
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const std::vector<int>& profile_files_fd_,
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int reference_profile_file_fd,
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const ProfileCompilationInfo::ProfileLoadFilterFn& filter_fn
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= ProfileCompilationInfo::ProfileFilterFnAcceptAll,
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const Options& options = Options());
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private:
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static ProcessingResult ProcessProfilesInternal(
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const std::vector<ScopedFlock>& profile_files,
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const ScopedFlock& reference_profile_file,
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const ProfileCompilationInfo::ProfileLoadFilterFn& filter_fn,
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const Options& options);
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DISALLOW_COPY_AND_ASSIGN(ProfileAssistant);
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};
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} // namespace art
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#endif // ART_PROFMAN_PROFILE_ASSISTANT_H_
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