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/*
$Id: thread_win32.cpp,v 1.8 2001/12/19 19:23:03 mbn Exp $
------------------------------------------------------------------------
ClanLib, the platform independent game SDK.
This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
version 2. See COPYING for details.
For a total list of contributers see CREDITS.
------------------------------------------------------------------------
*/
#include "Core/precomp.h"
#include "API/Core/System/thread.h"
#include "API/Core/System/error.h"
#include "thread_win32.h"
/////////////////////////////////////////////////////////////////////////////
// CL_Thread 0.4 backward compatibility:
CL_Thread *CL_Thread::create(CL_Runnable *runnable, bool delete_runnable)
{
return new CL_Thread(runnable, delete_runnable);
}
/////////////////////////////////////////////////////////////////////////////
// CL_Thread win32 implementation:
CL_Thread::CL_Thread()
: impl(0)
{
}
CL_Thread::CL_Thread(CL_Runnable *runnable, bool delete_runnable)
: impl(new CL_Thread_Generic)
{
impl->runnable = runnable;
impl->delete_runnable = delete_runnable;
impl->thread_handle = NULL;
impl->ref_count = 1;
}
CL_Thread::CL_Thread(const CL_Thread ©)
: impl(copy.impl)
{
if (impl) impl->ref_count++;
}
CL_Thread::~CL_Thread()
{
if (impl)
{
impl->ref_count--;
if (impl->ref_count == 0)
{
if (impl->thread_handle != NULL) terminate();
if (impl->delete_runnable) delete impl->runnable;
delete impl;
}
}
}
unsigned long __stdcall CL_Thread_Generic::func_proxy(void *arg)
{
CL_Thread_Generic *self = (CL_Thread_Generic *) arg;
self->runnable->run();
return 0;
}
CL_Thread &CL_Thread::operator =(const CL_Thread ©)
{
if (impl)
{
impl->ref_count--;
if (impl->ref_count == 0)
{
if (impl->thread_handle != NULL) terminate();
if (impl->delete_runnable) delete impl->runnable;
delete impl;
}
}
impl = copy.impl;
if (impl) impl->ref_count++;
return *this;
}
void CL_Thread::start()
{
impl->thread_handle = CreateThread(
NULL,
0,
impl->func_proxy,
impl,
0,
&impl->thread_id);
if (impl->thread_handle == NULL)
throw CL_Error("Failed to create thread");
}
void CL_Thread::terminate()
{
TerminateThread(impl->thread_handle, 0);
CloseHandle(impl->thread_handle);
impl->thread_handle = NULL;
}
void CL_Thread::wait()
{
if (impl->thread_handle == NULL) return;
WaitForSingleObject(impl->thread_handle, INFINITE);
CloseHandle(impl->thread_handle);
impl->thread_handle = NULL;
}
void CL_Thread::set_priority(EThreadPriority priority)
{
if (impl->thread_handle == NULL) return;
int prio = THREAD_PRIORITY_NORMAL;
switch (priority)
{
case cl_priority_above_normal: prio = THREAD_PRIORITY_ABOVE_NORMAL; break;
case cl_priority_below_normal: prio = THREAD_PRIORITY_BELOW_NORMAL; break;
case cl_priority_highest: prio = THREAD_PRIORITY_HIGHEST; break;
case cl_priority_idle: prio = THREAD_PRIORITY_IDLE; break;
case cl_priority_lowest: prio = THREAD_PRIORITY_LOWEST; break;
case cl_priority_normal: prio = THREAD_PRIORITY_NORMAL; break;
case cl_priority_time_critical: prio = THREAD_PRIORITY_TIME_CRITICAL; break;
}
BOOL result = SetThreadPriority(impl->thread_handle, prio);
if (result == FALSE) throw CL_Error("Failed to set thread priority");
}
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