72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
|
/*
|
||
|
|
; 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
|
||
|
|
; (C) 2018 Michael Balzer
|
||
|
|
;
|
||
|
|
; 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 "ovms_semaphore.h"
|
||
|
|
|
||
|
|
OvmsSemaphore::OvmsSemaphore(int maxcount /*=1*/, int initcount /*=0*/)
|
||
|
|
{
|
||
|
|
if (maxcount == 1)
|
||
|
|
{
|
||
|
|
m_semaphore = xSemaphoreCreateBinary();
|
||
|
|
if (initcount == 1)
|
||
|
|
Give();
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
m_semaphore = xSemaphoreCreateCounting(maxcount, initcount);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
OvmsSemaphore::~OvmsSemaphore()
|
||
|
|
{
|
||
|
|
vSemaphoreDelete(m_semaphore);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool OvmsSemaphore::Take(TickType_t timeout)
|
||
|
|
{
|
||
|
|
return (xSemaphoreTake(m_semaphore, timeout) == pdTRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
void OvmsSemaphore::Give()
|
||
|
|
{
|
||
|
|
xSemaphoreGive(m_semaphore);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool OvmsSemaphore::IsAvail()
|
||
|
|
{
|
||
|
|
return (uxSemaphoreGetCount(m_semaphore) > 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int OvmsSemaphore::GetCount()
|
||
|
|
{
|
||
|
|
return (int) uxSemaphoreGetCount(m_semaphore);
|
||
|
|
}
|