Introduction to Multiprogramming - Game Coding Complete - page 707

GCC_ERROR( “ Could not create thread! ” );

Fail();
return;

}

SetThreadPriority(m_hThread, m_ThreadPriority);

}

DWORD WINAPI RealtimeProcess::ThreadProc( LPVOID lpParam )
{

RealtimeProcess *proc = static_cast<RealtimeProcess *>(lpParam);
proc->VThreadProc();
return TRUE;

}
Note the thread parameter in the call to CreateThread() ? It is a pointer to the
static ThreadProc method, which casts the thread parameter back to a pointer to
the process instance. All the base classes must do is define the VThreadProc mem-
ber function.
The only new call you haven

t seen yet is the call to SetThreadPriority() , where
you tell Windows how much processor time to allocate to this thread.
Here

'

'

s how you would create a real-time process to increment a global integer, just
like you saw earlier:

class ProtectedProcess : public RealtimeProcess
{
public:
static DWORD g_ProtectedTotal;
static CRITICAL_SECTION g_criticalSection;
DWORD m_MaxLoops;
ProtectedProcess(DWORD maxLoops)
: RealtimeProcess(ThreadProc)
{ m_MaxLoops = maxLoops; }
virtual void VThreadProc(void);
};

DWORD ProtectedProcess::g_ProtectedTotal = 0;
CriticalSection ProtectedProcess::g_criticalSection;

void ProtectedProcess::VThreadProc(void)
{

DWORD dwCount = 0;

while( dwCount < m_MaxLoops )