1 // Copyright 2021 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #pragma once 16 17 #include <blobs-ipmid/blobs.hpp> 18 #include <metric.hpp> 19 20 #include <cstdint> 21 #include <string> 22 #include <vector> 23 24 namespace blobs 25 { 26 27 class MetricBlobHandler : public GenericBlobInterface 28 { 29 public: 30 MetricBlobHandler() = default; 31 ~MetricBlobHandler() = default; 32 MetricBlobHandler(const MetricBlobHandler&) = delete; 33 MetricBlobHandler& operator=(const MetricBlobHandler&) = delete; 34 MetricBlobHandler(MetricBlobHandler&&) = default; 35 MetricBlobHandler& operator=(MetricBlobHandler&&) = default; 36 37 bool canHandleBlob(const std::string& path) override; 38 std::vector<std::string> getBlobIds() override; 39 bool deleteBlob(const std::string& path) override; 40 bool stat(const std::string& path, BlobMeta* meta) override; 41 bool open(uint16_t session, uint16_t flags, 42 const std::string& path) override; 43 std::vector<uint8_t> read(uint16_t session, uint32_t offset, 44 uint32_t requestedSize) override; 45 bool write(uint16_t session, uint32_t offset, 46 const std::vector<uint8_t>& data) override; 47 bool writeMeta(uint16_t session, uint32_t offset, 48 const std::vector<uint8_t>& data) override; 49 bool commit(uint16_t session, const std::vector<uint8_t>& data) override; 50 bool close(uint16_t session) override; 51 bool stat(uint16_t session, BlobMeta* meta) override; 52 bool expire(uint16_t session) override; 53 54 private: 55 bool isReadOnlyOpenFlags(const uint16_t flag); 56 /* Every session gets its own BmcHealthSnapshot instance. */ 57 std::unordered_map<uint16_t, 58 std::unique_ptr<metric_blob::BmcHealthSnapshot>> 59 sessions; 60 }; 61 62 } // namespace blobs 63