135 lines
3.6 KiB
C++
135 lines
3.6 KiB
C++
//-----------------------------------------------------------------------------
|
|
//
|
|
// WaitImpl.cpp
|
|
//
|
|
// Windows implementation of an abstract base class for objects we
|
|
// want to be able to wait for.
|
|
//
|
|
// Copyright (c) 2010 Mal Lansell <mal@lansell.org>
|
|
// All rights reserved.
|
|
//
|
|
// SOFTWARE NOTICE AND LICENSE
|
|
//
|
|
// This file is part of OpenZWave.
|
|
//
|
|
// OpenZWave is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published
|
|
// by the Free Software Foundation, either version 3 of the License,
|
|
// or (at your option) any later version.
|
|
//
|
|
// OpenZWave 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 Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with OpenZWave. If not, see <http://www.gnu.org/licenses/>.
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
#include "../../Defs.h"
|
|
#include "../Wait.h"
|
|
#include "WaitImpl.h"
|
|
#include "../Log.h"
|
|
|
|
using namespace OpenZWave;
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// <WaitImpl::WaitImpl>
|
|
// Constructor
|
|
//-----------------------------------------------------------------------------
|
|
WaitImpl::WaitImpl
|
|
(
|
|
Wait* _owner
|
|
):
|
|
m_owner( _owner )
|
|
{
|
|
InitializeCriticalSection( &m_criticalSection );
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// <WaitImpl::~WaitImpl>
|
|
// Destructor
|
|
//-----------------------------------------------------------------------------
|
|
WaitImpl::~WaitImpl
|
|
(
|
|
)
|
|
{
|
|
DeleteCriticalSection( &m_criticalSection );
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// <WaitImpl::AddWatcher>
|
|
// Add a watcher to our object.
|
|
//-----------------------------------------------------------------------------
|
|
void WaitImpl::AddWatcher
|
|
(
|
|
Wait::pfnWaitNotification_t _callback,
|
|
void* _context
|
|
)
|
|
{
|
|
// Add the watcher to our list
|
|
Watcher watcher;
|
|
watcher.m_callback = _callback;
|
|
watcher.m_context = _context;
|
|
|
|
EnterCriticalSection( &m_criticalSection );
|
|
|
|
m_watchers.push_back( watcher );
|
|
|
|
LeaveCriticalSection( &m_criticalSection );
|
|
|
|
// If the object is already in a signalled state, notify the watcher immediately
|
|
if( m_owner->IsSignalled() )
|
|
{
|
|
_callback( _context );
|
|
}
|
|
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// <WaitImpl::RemoveWatcher>
|
|
// Remove a watcher from our object.
|
|
//-----------------------------------------------------------------------------
|
|
bool WaitImpl::RemoveWatcher
|
|
(
|
|
Wait::pfnWaitNotification_t _callback,
|
|
void* _context
|
|
)
|
|
{
|
|
bool res = false;
|
|
EnterCriticalSection( &m_criticalSection );
|
|
|
|
for( list<Watcher>::iterator it=m_watchers.begin(); it!=m_watchers.end(); ++it )
|
|
{
|
|
Watcher const& watcher = *it;
|
|
if( ( watcher.m_callback == _callback ) && ( watcher.m_context == _context ) )
|
|
{
|
|
m_watchers.erase( it );
|
|
res = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
LeaveCriticalSection( &m_criticalSection );
|
|
return res;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// <WaitImpl::Notify>
|
|
// Notify all the watchers that the object has become signalled
|
|
//-----------------------------------------------------------------------------
|
|
void WaitImpl::Notify
|
|
(
|
|
)
|
|
{
|
|
EnterCriticalSection( &m_criticalSection );
|
|
|
|
for( list<Watcher>::iterator it=m_watchers.begin(); it!=m_watchers.end(); ++it )
|
|
{
|
|
Watcher const& watcher = *it;
|
|
watcher.m_callback( watcher.m_context );
|
|
}
|
|
|
|
LeaveCriticalSection( &m_criticalSection );
|
|
}
|