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79 lines
2.6 KiB
79 lines
2.6 KiB
/* |
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* Copyright (C) 2017 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 specic language governing permissions and |
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* limitations under the License. |
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*/ |
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#define LOG_TAG "libperfmgr" |
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#include <android-base/file.h> |
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#include <android-base/logging.h> |
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#include <android-base/properties.h> |
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#include <android-base/stringprintf.h> |
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#include <android-base/strings.h> |
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#include "perfmgr/PropertyNode.h" |
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namespace android { |
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namespace perfmgr { |
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PropertyNode::PropertyNode(std::string name, std::string node_path, |
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std::vector<RequestGroup> req_sorted, |
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std::size_t default_val_index, bool reset_on_init) |
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: Node(std::move(name), std::move(node_path), std::move(req_sorted), |
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default_val_index, reset_on_init) { |
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if (reset_on_init) { |
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Update(false); |
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} |
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} |
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std::chrono::milliseconds PropertyNode::Update(bool) { |
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std::size_t value_index = default_val_index_; |
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std::chrono::milliseconds expire_time = std::chrono::milliseconds::max(); |
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// Find the highest outstanding request's expire time |
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for (std::size_t i = 0; i < req_sorted_.size(); i++) { |
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if (req_sorted_[i].GetExpireTime(&expire_time)) { |
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value_index = i; |
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break; |
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} |
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} |
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// Update node only if request index changes |
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if (value_index != current_val_index_) { |
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const std::string& req_value = |
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req_sorted_[value_index].GetRequestValue(); |
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if (!android::base::SetProperty(node_path_, req_value)) { |
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LOG(WARNING) << "Failed to set property to : " << node_path_ |
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<< " with value: " << req_value; |
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} else { |
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// Update current index only when succeed |
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current_val_index_ = value_index; |
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} |
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} |
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return expire_time; |
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} |
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void PropertyNode::DumpToFd(int fd) const { |
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std::string node_value = android::base::GetProperty(node_path_, ""); |
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std::string buf(android::base::StringPrintf( |
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"%s\t%s\t%zu\t%s\n", name_.c_str(), node_path_.c_str(), |
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current_val_index_, node_value.c_str())); |
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if (!android::base::WriteStringToFd(buf, fd)) { |
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LOG(ERROR) << "Failed to dump fd: " << fd; |
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} |
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} |
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} // namespace perfmgr |
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} // namespace android
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