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////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia 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 2 of the License, or
// (at your option) any later version.
//
// Nestopia 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 Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#include <process.h>
#include "language/resource.h"
#include "NstApplicationException.hpp"
#include "NstSystemThread.hpp"
namespace Nestopia
{
namespace System
{
Thread::Thread()
: hEnter(NULL), hExit(NULL), hAbort(NULL) {}
Thread::~Thread()
{
Stop();
}
inline Thread::Terminator::Terminator(HANDLE handle)
: hAbort(handle) {}
void Thread::Start(const Callback& callback,const int priority)
{
Stop();
if
(
NULL == (hEnter = ::CreateEvent( NULL, false, false, NULL )) ||
NULL == (hExit = ::CreateEvent( NULL, false, false, NULL )) ||
NULL == (hAbort = ::CreateEvent( NULL, false, false, NULL ))
)
throw Application::Exception( IDS_ERR_FAILED, L"CreateEvent()" );
class Entry
{
const Callback callback;
const int priority;
HANDLE const hEnter;
HANDLE const hExit;
const Terminator terminator;
public:
Entry(const Callback& c,int p,HANDLE e,HANDLE x,Terminator t)
: callback(c), priority(p), hEnter(e), hExit(x), terminator(t) {}
static void WINAPIV Run(void* data)
{
const Entry local( *static_cast<Entry*>(data) );
NST_ASSERT( local.hEnter && local.hExit );
if (local.priority)
::SetThreadPriority( ::GetCurrentThread(), local.priority );
::SetEvent( local.hEnter );
try
{
local.callback( local.terminator );
}
catch (...)
{
}
::SetEvent( local.hExit );
}
};
Entry entry( callback, priority, hEnter, hExit, Terminator(hAbort) );
if (!::_beginthread( Entry::Run, 0, &entry ))
throw Application::Exception( IDS_ERR_FAILED, L"_beginthread()" );
::WaitForSingleObject( hEnter, INFINITE );
}
void Thread::Stop()
{
if (hAbort)
::SetEvent( hAbort );
if (HANDLE const handle = hExit)
{
hExit = NULL;
::WaitForSingleObject( handle, INFINITE );
::CloseHandle( handle );
}
if (HANDLE const handle = hAbort)
{
hAbort = NULL;
::CloseHandle( handle );
}
if (HANDLE const handle = hEnter)
{
hEnter = NULL;
::CloseHandle( handle );
}
}
}
}
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