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Calin Juravle024160852016-02-23 12:00:03 +00001/*
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
17#ifndef ART_PROFMAN_PROFILE_ASSISTANT_H_
18#define ART_PROFMAN_PROFILE_ASSISTANT_H_
19
20#include <string>
21#include <vector>
22
23#include "base/scoped_flock.h"
Calin Juravle33083d62017-01-18 15:29:12 -080024#include "jit/profile_compilation_info.h"
Calin Juravle024160852016-02-23 12:00:03 +000025
26namespace art {
27
28class ProfileAssistant {
29 public:
30 // These also serve as return codes of profman and are processed by installd
31 // (frameworks/native/cmds/installd/commands.cpp)
32 enum ProcessingResult {
33 kCompile = 0,
34 kSkipCompilation = 1,
35 kErrorBadProfiles = 2,
36 kErrorIO = 3,
37 kErrorCannotLock = 4
38 };
39
40 // Process the profile information present in the given files. Returns one of
41 // ProcessingResult values depending on profile information and whether or not
42 // the analysis ended up successfully (i.e. no errors during reading,
43 // merging or writing of profile files).
44 //
45 // When the returned value is kCompile there is a significant difference
46 // between profile_files and reference_profile_files. In this case
47 // reference_profile will be updated with the profiling info obtain after
48 // merging all profiles.
49 //
50 // When the returned value is kSkipCompilation, the difference between the
51 // merge of the current profiles and the reference one is insignificant. In
52 // this case no file will be updated.
53 //
54 static ProcessingResult ProcessProfiles(
55 const std::vector<std::string>& profile_files,
56 const std::string& reference_profile_file);
57
58 static ProcessingResult ProcessProfiles(
59 const std::vector<int>& profile_files_fd_,
60 int reference_profile_file_fd);
61
62 private:
63 static ProcessingResult ProcessProfilesInternal(
64 const std::vector<ScopedFlock>& profile_files,
65 const ScopedFlock& reference_profile_file);
66
67 DISALLOW_COPY_AND_ASSIGN(ProfileAssistant);
68};
69
70} // namespace art
71
72#endif // ART_PROFMAN_PROFILE_ASSISTANT_H_