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 specic language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "libperfmgr"
18
19 #include "perfmgr/RequestGroup.h"
20
21 #include <android-base/file.h>
22 #include <android-base/logging.h>
23
24 #include <sstream>
25
26 namespace android {
27 namespace perfmgr {
28
AddRequest(const std::string & hint_type,ReqTime end_time)29 bool RequestGroup::AddRequest(const std::string& hint_type, ReqTime end_time) {
30 if (request_map_.find(hint_type) == request_map_.end()) {
31 request_map_.emplace(hint_type, end_time);
32 return true;
33 } else {
34 if (request_map_[hint_type] < end_time) {
35 request_map_[hint_type] = end_time;
36 }
37 return false;
38 }
39 }
40
RemoveRequest(const std::string & hint_type)41 bool RequestGroup::RemoveRequest(const std::string& hint_type) {
42 return request_map_.erase(hint_type);
43 }
44
GetRequestValue() const45 const std::string& RequestGroup::GetRequestValue() const {
46 return request_value_;
47 }
48
GetExpireTime(std::chrono::milliseconds * expire_time)49 bool RequestGroup::GetExpireTime(std::chrono::milliseconds* expire_time) {
50
51 *expire_time = std::chrono::milliseconds::max();
52
53 if (request_map_.empty()) return false;
54
55 ReqTime now = std::chrono::steady_clock::now();
56
57 bool active = false;
58 for (auto it = request_map_.begin(); it != request_map_.end();) {
59 auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(
60 it->second - now);
61 if (duration <= std::chrono::milliseconds::zero()) {
62 it = request_map_.erase(it);
63 } else {
64 *expire_time = std::min(duration, *expire_time);
65 active = true;
66 ++it;
67 }
68 }
69 return active;
70 }
71
DumpToFd(int fd,const std::string & prefix) const72 void RequestGroup::DumpToFd(int fd, const std::string& prefix) const {
73 std::ostringstream dump_buf;
74 ReqTime now = std::chrono::steady_clock::now();
75 for (auto it = request_map_.begin(); it != request_map_.end(); it++) {
76 auto remaining_duration =
77 std::chrono::duration_cast<std::chrono::milliseconds>(it->second -
78 now);
79 dump_buf << prefix << it->first << "\t" << remaining_duration.count()
80 << "\t" << request_value_ << "\n";
81 }
82 if (!android::base::WriteStringToFd(dump_buf.str(), fd)) {
83 LOG(ERROR) << "Failed to dump fd: " << fd;
84 }
85 }
86
87 } // namespace perfmgr
88 } // namespace android
89