1 // Copyright 2023 The Pigweed Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not 4 // use this file except in compliance with the License. You may obtain a copy of 5 // the License at 6 // 7 // https://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, WITHOUT 11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12 // License for the specific language governing permissions and limitations under 13 // the License. 14 #pragma once 15 16 #include "pw_persistent_ram/flat_file_system_entry.h" 17 #include "pw_system/config.h" 18 #include "pw_system/transfer_handlers.h" 19 20 namespace pw::system { 21 22 class FileManager { 23 public: 24 // Each transfer handler ID corresponds 1:1 with a transfer handler and 25 // filesystem element pair. The ID must be unique and increment from 0 to 26 // ensure no gaps in the FileManager handler & filesystem arrays. 27 // NOTE: the enumerators should never have values defined, to ensure they 28 // increment from zero and kNumFileSystemEntries is correct 29 enum TransferHandlerId : uint32_t { 30 #if PW_SYSTEM_ENABLE_TRACE_SERVICE 31 kTraceTransferHandlerId, 32 #endif 33 kNumFileSystemEntries 34 }; 35 36 FileManager(); 37 GetTransferHandlers()38 std::array<transfer::Handler*, kNumFileSystemEntries>& GetTransferHandlers() { 39 return transfer_handlers_; 40 } 41 std::array<file::FlatFileSystemService::Entry*, kNumFileSystemEntries>& GetFileSystemEntries()42 GetFileSystemEntries() { 43 return file_system_entries_; 44 } 45 46 private: 47 #if PW_SYSTEM_ENABLE_TRACE_SERVICE 48 TracePersistentBufferTransfer trace_data_handler_; 49 persistent_ram::FlatFileSystemPersistentBufferEntry< 50 PW_TRACE_BUFFER_SIZE_BYTES> 51 trace_data_filesystem_entry_; 52 #endif 53 54 std::array<transfer::Handler*, kNumFileSystemEntries> transfer_handlers_; 55 std::array<file::FlatFileSystemService::Entry*, kNumFileSystemEntries> 56 file_system_entries_; 57 }; 58 59 FileManager& GetFileManager(); 60 61 } // namespace pw::system 62