159 lines
4.2 KiB
C++
159 lines
4.2 KiB
C++
//-----------------------------------------------------------------------------
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//
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// ThreadImpl.cpp
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//
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// Windows implementation of a cross-platform thread
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//
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// Copyright (c) 2010 Mal Lansell <mal@lansell.org>
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// All rights reserved.
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//
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// SOFTWARE NOTICE AND LICENSE
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//
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// This file is part of OpenZWave.
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//
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// OpenZWave is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, either version 3 of the License,
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// or (at your option) any later version.
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//
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// OpenZWave is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with OpenZWave. If not, see <http://www.gnu.org/licenses/>.
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//
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//-----------------------------------------------------------------------------
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#include "../../Defs.h"
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#include "../Event.h"
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#include "../Thread.h"
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#include "ThreadImpl.h"
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using namespace OpenZWave;
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//-----------------------------------------------------------------------------
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// <ThreadImpl::ThreadImpl>
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// Constructor
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//-----------------------------------------------------------------------------
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ThreadImpl::ThreadImpl
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(
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Thread* _owner,
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string const& _name
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):
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m_owner( _owner ),
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m_hThread( INVALID_HANDLE_VALUE ),
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m_bIsRunning( false ),
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m_name( _name )
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{
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}
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//-----------------------------------------------------------------------------
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// <ThreadImpl::~ThreadImpl>
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// Destructor
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//-----------------------------------------------------------------------------
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ThreadImpl::~ThreadImpl
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(
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)
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{
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}
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//-----------------------------------------------------------------------------
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// <ThreadImpl::Start>
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// Start a function running on this thread
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//-----------------------------------------------------------------------------
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bool ThreadImpl::Start
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(
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Thread::pfnThreadProc_t _pfnThreadProc,
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Event* _exitEvent,
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void* _context
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)
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{
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// Create a thread to run the specified function
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m_pfnThreadProc = _pfnThreadProc;
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m_context = _context;
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m_exitEvent = _exitEvent;
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m_exitEvent->Reset();
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HANDLE hThread = ::CreateThread( NULL, 0, ThreadImpl::ThreadProc, this, CREATE_SUSPENDED, NULL );
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m_hThread = hThread;
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::ResumeThread( hThread );
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return true;
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}
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//-----------------------------------------------------------------------------
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// <ThreadImpl::Sleep>
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// Cause thread to sleep for the specified number of milliseconds
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//-----------------------------------------------------------------------------
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void ThreadImpl::Sleep
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(
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uint32 _millisecs
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)
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{
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::Sleep(_millisecs);
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}
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//-----------------------------------------------------------------------------
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// <ThreadImpl::Terminate>
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// Force the thread to stop
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//-----------------------------------------------------------------------------
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bool ThreadImpl::Terminate
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(
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)
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{
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if( !m_bIsRunning )
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{
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return false;
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}
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// This can cause all sorts of trouble if the thread is holding a lock.
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TerminateThread( m_hThread, 0 );
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m_hThread = INVALID_HANDLE_VALUE;
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return true;
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}
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//-----------------------------------------------------------------------------
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// <ThreadImpl::IsSignalled>
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// Test whether the thread has completed
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//-----------------------------------------------------------------------------
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bool ThreadImpl::IsSignalled
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(
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)
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{
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return !m_bIsRunning;
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}
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//-----------------------------------------------------------------------------
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// <ThreadImpl::ThreadProc>
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// Entry point for running a function on this thread
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//-----------------------------------------------------------------------------
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DWORD WINAPI ThreadImpl::ThreadProc
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(
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void* _pArg
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)
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{
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ThreadImpl* pImpl = (ThreadImpl*)_pArg;
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pImpl->Run();
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return 0;
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}
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//-----------------------------------------------------------------------------
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// <ThreadImpl::Run>
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// Entry point for running a function on this thread
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//-----------------------------------------------------------------------------
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void ThreadImpl::Run
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(
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)
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{
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m_bIsRunning = true;
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m_pfnThreadProc( m_exitEvent, m_context );
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m_bIsRunning = false;
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// Let any watchers know that the thread has finished running.
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m_owner->Notify();
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}
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