72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/*
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; Project: Open Vehicle Monitor System
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; Date: 14th March 2017
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;
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; Changes:
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; 1.0 Initial release
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;
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; (C) 2011 Michael Stegen / Stegen Electronics
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; (C) 2011-2017 Mark Webb-Johnson
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; (C) 2011 Sonny Chen @ EPRO/DX
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; (C) 2018 Michael Balzer
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;
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; Permission is hereby granted, free of charge, to any person obtaining a copy
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; of this software and associated documentation files (the "Software"), to deal
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; in the Software without restriction, including without limitation the rights
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; to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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; copies of the Software, and to permit persons to whom the Software is
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; furnished to do so, subject to the following conditions:
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;
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; The above copyright notice and this permission notice shall be included in
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; all copies or substantial portions of the Software.
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;
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; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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; AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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; THE SOFTWARE.
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*/
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#include "ovms_semaphore.h"
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OvmsSemaphore::OvmsSemaphore(int maxcount /*=1*/, int initcount /*=0*/)
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{
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if (maxcount == 1)
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{
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m_semaphore = xSemaphoreCreateBinary();
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if (initcount == 1)
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Give();
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}
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else
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{
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m_semaphore = xSemaphoreCreateCounting(maxcount, initcount);
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}
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}
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OvmsSemaphore::~OvmsSemaphore()
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{
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vSemaphoreDelete(m_semaphore);
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}
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bool OvmsSemaphore::Take(TickType_t timeout)
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{
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return (xSemaphoreTake(m_semaphore, timeout) == pdTRUE);
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}
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void OvmsSemaphore::Give()
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{
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xSemaphoreGive(m_semaphore);
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}
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bool OvmsSemaphore::IsAvail()
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{
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return (uxSemaphoreGetCount(m_semaphore) > 0);
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}
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int OvmsSemaphore::GetCount()
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{
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return (int) uxSemaphoreGetCount(m_semaphore);
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}
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