| /* |
| * |
| * Copyright 2015, 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 SYSTEM_EXTRAS_PERFPROFD_CONFIGREADER_H_ |
| #define SYSTEM_EXTRAS_PERFPROFD_CONFIGREADER_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "config.h" |
| |
| namespace android { |
| namespace perfprofd { |
| class ProfilingConfig; // Config proto. |
| } // namespace perfprofd |
| } // namespace android |
| |
| // |
| // This table describes the perfprofd config file syntax in terms of |
| // key/value pairs. Values come in two flavors: strings, or unsigned |
| // integers. In the latter case the reader sets allowable |
| // minimum/maximum for the setting. |
| // |
| class ConfigReader { |
| |
| public: |
| ConfigReader(); |
| ~ConfigReader(); |
| |
| // Ask for the current setting of a config item |
| unsigned getUnsignedValue(const char *key) const; |
| bool getBoolValue(const char *key) const; |
| std::string getStringValue(const char *key) const; |
| |
| // read the specified config file, applying any settings it contains |
| // returns true for successful read, false if conf file cannot be opened. |
| bool readFile(); |
| |
| bool Read(const std::string& data, bool fail_on_error, std::string* error_msg); |
| |
| // set/get path to config file |
| static void setConfigFilePath(const char *path); |
| static const char *getConfigFilePath(); |
| |
| // override a config item (for unit testing purposes) |
| void overrideUnsignedEntry(const char *key, unsigned new_value); |
| |
| void FillConfig(Config* config); |
| |
| static void ProtoToConfig(const android::perfprofd::ProfilingConfig& in, Config* out); |
| |
| private: |
| void addUnsignedEntry(const char *key, |
| unsigned default_value, |
| unsigned min_value, |
| unsigned max_value); |
| void addStringEntry(const char *key, const char *default_value); |
| void addDefaultEntries(); |
| bool parseLine(const std::string& key, |
| const std::string& value, |
| unsigned linecount, |
| std::string* error_msg); |
| |
| struct Data; |
| std::unique_ptr<Data> data_; |
| }; |
| |
| #endif |