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/*
* Copyright (C) 2017 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 STORAGE_MANAGER_H
#define STORAGE_MANAGER_H
#include <android/util/ProtoOutputStream.h>
#include <utils/Log.h>
#include <utils/RefBase.h>
#include "packages/UidMap.h"
namespace android {
namespace os {
namespace statsd {
using android::util::ProtoOutputStream;
class StorageManager : public virtual RefBase {
public:
/**
* Writes a given byte array as a file to the specified file path.
*/
static void writeFile(const char* file, const void* buffer, int numBytes);
/**
* Deletes a single file given a file name.
*/
static void deleteFile(const char* file);
/**
* Deletes all files in a given directory.
*/
static void deleteAllFiles(const char* path);
/**
* Deletes all files whose name matches with a provided suffix.
*/
static void deleteSuffixedFiles(const char* path, const char* suffix);
/**
* Send broadcasts to relevant receiver for each data stored on disk.
*/
static void sendBroadcast(const char* path,
const std::function<void(const ConfigKey&)>& sendBroadcast);
/**
* Appends ConfigMetricsReport found on disk to the specific proto and
* delete it.
*/
static void appendConfigMetricsReport(ProtoOutputStream& proto);
/**
* Call to load the saved configs from disk.
*/
static void readConfigFromDisk(std::map<ConfigKey, StatsdConfig>& configsMap);
/**
* Trims files in the provided directory to limit the total size, number of
* files, accumulation of outdated files.
*/
static void trimToFit(const char* dir);
};
} // namespace statsd
} // namespace os
} // namespace android
#endif // STORAGE_MANAGER_H
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