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/*
dbx_tree: tree database driver for Miranda IM
Copyright 2007-2010 Michael "Protogenes" Kunz,
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "Interface.h"
#include "Thread.h"
#include "intrinsics.h"
unsigned int __stdcall ThreadDistributor(void* Param)
{
CThread * thread = static_cast<CThread *>(Param);
DWORD result = thread->Wrapper();
_endthreadex(result);
return result; // to make the compiler happy
}
CThread::CThread(bool CreateSuspended)
{
m_Handle = NULL;
m_Terminated = 0;
m_FreeOnTerminate = false;
m_Finished = false;
m_Suspended = CreateSuspended;
m_ReturnValue = 0;
unsigned int flags = 0;
if (CreateSuspended)
flags = CREATE_SUSPENDED;
m_Handle = reinterpret_cast<HANDLE> (_beginthreadex(NULL, 0, &ThreadDistributor, this, flags, &m_ThreadID));
}
CThread::~CThread()
{
if (!m_Finished && !m_Suspended)
{
Terminate();
WaitFor();
}
if (m_Handle)
CloseHandle(m_Handle);
}
DWORD CThread::Wrapper()
{
Execute();
bool dofree = FreeOnTerminate();
DWORD result = ReturnValue();
m_Finished = true;
m_sigTerminate(this);
if (dofree)
delete this;
return result;
}
void CThread::Resume()
{
if (ResumeThread(m_Handle) == 1)
XCHG_32(m_Suspended, 0);
}
void CThread::Suspend()
{
SuspendThread(m_Handle);
XCHG_32(m_Suspended, 1);
}
void CThread::Terminate()
{
XCHG_32(m_Terminated, 1);
}
DWORD CThread::WaitFor()
{
HANDLE tmp = m_Handle;
DWORD result = WAIT_FAILED;
if (WaitForSingleObject(m_Handle, INFINITE) != WAIT_FAILED)
GetExitCodeThread(tmp, &result);
return result;
}
void CThread::FreeOnTerminate(bool Terminate)
{
XCHG_32(m_FreeOnTerminate, Terminate);
}
void CThread::ReturnValue(DWORD Value)
{
XCHG_32(m_ReturnValue, Value);
}
void CThread::Priority(TPriority NewPriority)
{
SetThreadPriority(m_Handle, NewPriority);
}
CThread::TPriority CThread::Priority()
{
return static_cast<TPriority> (GetThreadPriority(m_Handle) & 0xffff);
}
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