mirror of https://github.com/ShaYmez/xlxd.git
73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
//
|
|
// csemaphore.cpp
|
|
// xlxd
|
|
//
|
|
// Created by Jean-Luc Deltombe (LX3JL) on 16/04/2017.
|
|
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
|
|
//
|
|
// ----------------------------------------------------------------------------
|
|
// This file is part of xlxd.
|
|
//
|
|
// xlxd 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.
|
|
//
|
|
// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#include "main.h"
|
|
#include "csemaphore.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// constructor
|
|
|
|
CSemaphore::CSemaphore()
|
|
{
|
|
// Initialized as locked.
|
|
m_Count = 0;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// operation
|
|
|
|
void CSemaphore::Reset(void)
|
|
{
|
|
std::unique_lock<decltype(m_Mutex)> lock(m_Mutex);
|
|
m_Count = 0;
|
|
}
|
|
|
|
void CSemaphore::Notify(void)
|
|
{
|
|
std::unique_lock<std::mutex> lock(m_Mutex);
|
|
m_Count++;
|
|
m_Condition.notify_one();
|
|
}
|
|
|
|
void CSemaphore::Wait(void)
|
|
{
|
|
std::unique_lock<std::mutex> lock(m_Mutex);
|
|
m_Condition.wait(lock, [&]{ return m_Count > 0; });
|
|
m_Count--;
|
|
}
|
|
|
|
bool CSemaphore::WaitFor(uint ms)
|
|
{
|
|
std::chrono::milliseconds timespan(ms);
|
|
std::unique_lock<decltype(m_Mutex)> lock(m_Mutex);
|
|
auto ok = m_Condition.wait_for(lock, timespan, [&]{ return m_Count > 0; });
|
|
if ( ok )
|
|
{
|
|
m_Count--;
|
|
}
|
|
return ok;
|
|
|
|
}
|
|
|