OVMS3/OVMS.V3/main/ovms_mutex.h

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/*
; Project: Open Vehicle Monitor System
; Date: 14th March 2017
;
; Changes:
; 1.0 Initial release
;
; (C) 2011 Michael Stegen / Stegen Electronics
; (C) 2011-2017 Mark Webb-Johnson
; (C) 2011 Sonny Chen @ EPRO/DX
;
; 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.
*/
#ifndef __OVMS_MUTEX_H__
#define __OVMS_MUTEX_H__
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include <freertos/semphr.h>
/**
* Standard Mutex:
*/
class OvmsMutex
{
public:
OvmsMutex();
~OvmsMutex();
public:
bool Lock(TickType_t timeout = portMAX_DELAY);
void Unlock();
protected:
QueueHandle_t m_mutex;
};
class OvmsMutexLock
{
public:
OvmsMutexLock(OvmsMutex* mutex, TickType_t timeout = portMAX_DELAY);
~OvmsMutexLock();
public:
bool IsLocked();
protected:
OvmsMutex* m_mutex;
bool m_locked;
};
/**
* Recursive Mutex:
*/
class OvmsRecMutex
{
public:
OvmsRecMutex();
~OvmsRecMutex();
public:
bool Lock(TickType_t timeout = portMAX_DELAY);
void Unlock();
protected:
QueueHandle_t m_mutex;
};
class OvmsRecMutexLock
{
public:
OvmsRecMutexLock(OvmsRecMutex* mutex, TickType_t timeout = portMAX_DELAY);
~OvmsRecMutexLock();
public:
bool IsLocked();
protected:
OvmsRecMutex* m_mutex;
bool m_locked;
};
#endif //#ifndef __OVMS_MUTEX_H__