ardupilot/libraries/AP_HAL_ESP32/Semaphores.h

56 lines
1.5 KiB
C++

/*
* This file is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdint.h>
#include <AP_HAL/AP_HAL_Boards.h>
#include <AP_HAL/AP_HAL_Macros.h>
#include <AP_HAL/Semaphores.h>
#include "HAL_ESP32_Namespace.h"
#include <freertos/FreeRTOS.h>
#include <freertos/semphr.h>
class ESP32::Semaphore : public AP_HAL::Semaphore
{
public:
Semaphore();
bool give() override;
bool take(uint32_t timeout_ms) override;
bool take_nonblocking() override;
void take_blocking() override;
bool check_owner();
protected:
void* handle;
};
class ESP32::BinarySemaphore : public AP_HAL::BinarySemaphore {
public:
BinarySemaphore(bool initial_state=false);
~BinarySemaphore(void);
CLASS_NO_COPY(BinarySemaphore);
bool wait(uint32_t timeout_us) override;
bool wait_blocking(void) override;
void signal(void) override;
void signal_ISR(void) override;
protected:
SemaphoreHandle_t _sem;
};