AllocationContextRealtime.hpp

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 * Copyright (c) 1991, 2019 IBM Corp. and others
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 * the terms of the Eclipse Public License 2.0 which accompanies this
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/**
 * @file
 * @ingroup GC_Metronome
 */

#if !defined(ALLOCATIONCONTEXTREALTIME_HPP_)
#define ALLOCATIONCONTEXTREALTIME_HPP_

#include "AllocationContext.hpp"
#include "AllocationContextSegregated.hpp"

class MM_EnvironmentBase;
class MM_GlobalAllocationManagerSegregated;
class MM_RegionPoolSegregated;

class MM_AllocationContextRealtime : public MM_AllocationContextSegregated
{
/* Data members / Types */
public:

protected:

private:

/* Methods */
public:
	static MM_AllocationContextRealtime *newInstance(MM_EnvironmentBase *env, MM_GlobalAllocationManagerSegregated *gam, MM_RegionPoolSegregated *regionPool);

	virtual uintptr_t *allocateLarge(MM_EnvironmentBase *env, uintptr_t sizeInBytesRequired);

protected:
	MM_AllocationContextRealtime(MM_EnvironmentBase *env, MM_GlobalAllocationManagerSegregated *gam, MM_RegionPoolSegregated *regionPool)
		: MM_AllocationContextSegregated(env, gam, regionPool)
	{
		_typeId = __FUNCTION__;
	}

	virtual bool shouldPreMarkSmallCells(MM_EnvironmentBase *env);
	virtual bool trySweepAndAllocateRegionFromSmallSizeClass(MM_EnvironmentBase *env, uintptr_t sizeClass, uintptr_t *sweepCount, U_64 *sweepStartTime);
	virtual void signalSmallRegionDepleted(MM_EnvironmentBase *env, uintptr_t sizeClass);

private:
	bool initialize(MM_EnvironmentBase *env);
	void tearDown(MM_EnvironmentBase *env);
};

#endif /* ALLOCATIONCONTEXTREALTIME_HPP_ */