circuitpython/ports/esp32s2/background.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "py/runtime.h"
#include "supervisor/filesystem.h"
#include "supervisor/shared/stack.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#if CIRCUITPY_DISPLAYIO
#include "shared-module/displayio/__init__.h"
#endif
static bool running_background_tasks = false;
void background_tasks_reset(void) {
running_background_tasks = false;
}
void run_background_tasks(void) {
// Don't call ourselves recursively.
if (running_background_tasks) {
return;
}
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// Zero delay in case FreeRTOS wants to switch to something else.
vTaskDelay(0);
running_background_tasks = true;
filesystem_background();
#if CIRCUITPY_DISPLAYIO
displayio_background();
#endif
running_background_tasks = false;
assert_heap_ok();
}