initial import of sqlitex

dlls/sqlite/thread/BaseWorker.cpp

@@ -0,0 +1,249 @@
+#include "BaseWorker.h"
+
+BaseWorker::BaseWorker() : 
+	m_perFrame(SM_DEFAULT_THREADS_PER_FRAME),
+	m_state(Worker_Stopped)
+{
+}
+
+BaseWorker::~BaseWorker()
+{
+	if (m_state != Worker_Stopped || m_state != Worker_Invalid)
+		Stop(true);
+
+	if (m_ThreadQueue.size())
+		Flush(true);
+}
+
+void BaseWorker::MakeThread(IThread *pThread)
+{
+	ThreadParams pt;
+
+	pt.flags = Thread_AutoRelease;
+	pt.prio = ThreadPrio_Normal;
+
+	MakeThread(pThread, &pt);
+}
+
+IThreadHandle *BaseWorker::MakeThread(IThread *pThread, ThreadFlags flags)
+{
+	ThreadParams pt;
+
+	pt.flags = flags;
+	pt.prio = ThreadPrio_Normal;
+
+	return MakeThread(pThread, &pt);
+}
+
+IThreadHandle *BaseWorker::MakeThread(IThread *pThread, const ThreadParams *params)
+{
+	if (m_state != Worker_Running)
+		return NULL;
+
+	SWThreadHandle *swt = new SWThreadHandle(this, params, pThread);
+
+	AddThreadToQueue(swt);
+
+	return swt;
+}
+
+void BaseWorker::GetPriorityBounds(ThreadPriority &max, ThreadPriority &min)
+{
+	max = ThreadPrio_Normal;
+	min = ThreadPrio_Normal;
+}
+
+unsigned int BaseWorker::Flush(bool flush_cancel)
+{
+	SWThreadHandle *swt;
+	unsigned int num = 0;
+
+	while ((swt=PopThreadFromQueue()) != NULL)
+	{
+		swt->m_state = Thread_Done;
+		if (!flush_cancel)
+			swt->pThread->RunThread(swt);
+		swt->pThread->OnTerminate(swt, flush_cancel);
+		if (swt->m_params.flags & Thread_AutoRelease)
+			delete swt;
+		num++;
+	}
+
+	return num;
+}
+
+SWThreadHandle *BaseWorker::PopThreadFromQueue()
+{
+	if (!m_ThreadQueue.size())
+		return NULL;
+
+	SourceHook::List<SWThreadHandle *>::iterator begin;
+	SWThreadHandle *swt;
+
+	begin = m_ThreadQueue.begin();
+	swt = (*begin);
+	m_ThreadQueue.erase(begin);
+
+	return swt;
+}
+
+void BaseWorker::AddThreadToQueue(SWThreadHandle *pHandle)
+{
+	m_ThreadQueue.push_back(pHandle);
+}
+
+unsigned int BaseWorker::GetMaxThreadsPerFrame()
+{
+	return m_perFrame;
+}
+
+WorkerState BaseWorker::GetStatus(unsigned int *threads)
+{
+	if (threads)
+		*threads = m_perFrame;
+
+	return m_state;
+}
+
+unsigned int BaseWorker::RunFrame()
+{
+	unsigned int done = 0;
+	unsigned int max = GetMaxThreadsPerFrame();
+	SWThreadHandle *swt = NULL;
+	IThread *pThread = NULL;
+
+	while (done < max)
+	{
+		if ((swt=PopThreadFromQueue()) == NULL)
+			break;
+		pThread = swt->pThread;
+		swt->m_state = Thread_Running;
+		pThread->RunThread(swt);
+		swt->m_state = Thread_Done;
+		pThread->OnTerminate(swt, false);
+		if (swt->m_params.flags & Thread_AutoRelease)
+			delete swt;
+		done++;
+	}
+
+	return done;
+}
+
+void BaseWorker::SetMaxThreadsPerFrame(unsigned int threads)
+{
+	m_perFrame = threads;
+}
+
+bool BaseWorker::Start()
+{
+	if (m_state != Worker_Invalid && m_state != Worker_Stopped)
+	{
+		return false;
+	}
+
+	m_state = Worker_Running;
+
+    return true;
+}
+
+bool BaseWorker::Stop(bool flush_cancel)
+{
+	if (m_state == Worker_Invalid || m_state == Worker_Stopped)
+		return false;
+
+	if (m_state == Worker_Paused)
+	{
+		if (!Unpause())
+			return false;
+	}
+
+	m_state = Worker_Stopped;
+	Flush(flush_cancel);
+
+	return true;
+}
+
+bool BaseWorker::Pause()
+{
+	if (m_state != Worker_Running)
+		return false;
+
+	m_state = Worker_Paused;
+
+	return true;
+}
+
+
+bool BaseWorker::Unpause()
+{
+	if (m_state != Worker_Paused)
+		return false;
+
+	m_state = Worker_Running;
+
+	return true;
+}
+
+/***********************
+ * THREAD HANDLE STUFF *
+ ***********************/
+
+void SWThreadHandle::DestroyThis()
+{
+	delete this;
+}
+
+void SWThreadHandle::GetParams(ThreadParams *p)
+{
+	*p = m_params;
+}
+
+ThreadPriority SWThreadHandle::GetPriority()
+{
+	return m_params.prio;
+}
+
+ThreadState SWThreadHandle::GetState()
+{
+	return m_state;
+}
+
+IThreadCreator *SWThreadHandle::Parent()
+{
+	return m_parent;
+}
+
+bool SWThreadHandle::SetPriority(ThreadPriority prio)
+{
+	if (m_params.prio != ThreadPrio_Normal)
+		return false;
+
+	m_params.prio = prio;
+
+	return true;
+}
+
+bool SWThreadHandle::Unpause()
+{
+	if (m_state != Thread_Paused)
+		return false;
+
+	m_state = Thread_Running;
+
+	return true;
+}
+
+bool SWThreadHandle::WaitForThread()
+{
+	return false;
+}
+
+SWThreadHandle::SWThreadHandle(IThreadCreator *parent, const ThreadParams *p, IThread *thread) : 
+	m_parent(parent), m_params(*p), pThread(thread), m_state(Thread_Paused)
+{
+}
+
+IThread *SWThreadHandle::GetThread()
+{
+	return pThread;
+}