OVMS3-idf/components/nvs_flash/src/nvs_platform.hpp
Ivan Grokhotkov 6e97936bac nvs: allow nvs_flash_init to be called more than once
Also don’t assert in nvs_* functions if nvs_flash_init wasn’t called,
and make nvs_flash_init_custom an internal API for unit tests.
2016-11-18 20:11:16 +08:00

81 lines
1.6 KiB
C++

// 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.
#ifndef nvs_platform_h
#define nvs_platform_h
#ifdef ESP_PLATFORM
#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"
namespace nvs
{
class Lock
{
public:
Lock()
{
if (mSemaphore) {
xSemaphoreTake(mSemaphore, portMAX_DELAY);
}
}
~Lock()
{
if (mSemaphore) {
xSemaphoreGive(mSemaphore);
}
}
static esp_err_t init()
{
if (mSemaphore) {
return ESP_OK;
}
mSemaphore = xSemaphoreCreateMutex();
if (!mSemaphore) {
return ESP_ERR_NO_MEM;
}
return ESP_OK;
}
static void uninit()
{
if (mSemaphore) {
vSemaphoreDelete(mSemaphore);
}
mSemaphore = nullptr;
}
static SemaphoreHandle_t mSemaphore;
};
} // namespace nvs
#else // ESP_PLATFORM
namespace nvs
{
class Lock
{
public:
Lock() { }
~Lock() { }
static void init() {}
static void uninit() {}
};
} // namespace nvs
#endif // ESP_PLATFORM
#endif /* nvs_platform_h */