ESP-IDF
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Outline
#include "nvs_partition_manager.hpp"
#include "nvs_handle.hpp"
#include "nvs_handle_simple.hpp"
#include "nvs_handle_locked.hpp"
#include "nvs_platform.hpp"
nvs
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/nvs_flash/src/nvs_cxx_api.cpp
 
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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD // // 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. #include "nvs_partition_manager.hpp" #include "nvs_handle.hpp" #include "nvs_handle_simple.hpp" #include "nvs_handle_locked.hpp" #include "nvs_platform.hpp"5 includes namespace nvs { std::unique_ptr<NVSHandle> open_nvs_handle_from_partition(const char *partition_name, const char *ns_name, nvs_open_mode_t open_mode, esp_err_t *err) { if (partition_name == nullptr || ns_name == nullptr) { if (err) { *err = ESP_ERR_INVALID_ARG; }{...} return nullptr; }{...} esp_err_t lock_result = Lock::init(); if (lock_result != ESP_OK) { if (err != nullptr) { *err = lock_result; }{...} return nullptr; }{...} Lock lock; NVSHandleSimple *handle_simple; esp_err_t result = nvs::NVSPartitionManager::get_instance()-> open_handle(partition_name, ns_name, open_mode, &handle_simple); if (err) { *err = result; }{...} if (result != ESP_OK) { return nullptr; }{...} NVSHandleLocked *locked_handle = new (nothrow) NVSHandleLocked(handle_simple); if (!locked_handle) { if (err) { *err = ESP_ERR_NO_MEM; }{...} delete handle_simple; return nullptr; }{...} return std::unique_ptr<NVSHandleLocked>(locked_handle); }{ ... } std::unique_ptr<NVSHandle> open_nvs_handle(const char *ns_name, nvs_open_mode_t open_mode, esp_err_t *err) { return open_nvs_handle_from_partition(NVS_DEFAULT_PART_NAME, ns_name, open_mode, err); }{ ... } }{...} // namespace nvs
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