Sci::DataStack Struct Reference

#include <segment.h>

Inheritance diagram for Sci::DataStack:

Public Member Functions
bool	isValidOffset (uint32 offset) const override
SegmentRef	dereference (reg_t pointer) override
reg_t	findCanonicAddress (SegManager *segMan, reg_t addr) const override
Common::Array< reg_t >	listAllOutgoingReferences (reg_t object) const override
void	saveLoadWithSerializer (Common::Serializer &ser) override
Public Member Functions inherited from Sci::SegmentObj
	SegmentObj (SegmentType type)
SegmentType	getType () const
virtual void	freeAtAddress (SegManager *segMan, reg_t sub_addr)
virtual Common::Array< reg_t >	listAllDeallocatable (SegmentId segId) const

Public Attributes
uint	_capacity
reg_t *	_entries
Public Attributes inherited from Sci::SegmentObj
SegmentType	_type

Additional Inherited Members
Static Public Member Functions inherited from Sci::SegmentObj
static SegmentObj *	createSegmentObj (SegmentType type)

Detailed Description

Data stack

Member Function Documentation

isValidOffset()

bool Sci::DataStack::isValidOffset ( uint32  offset ) const

inlineoverridevirtual

Check whether the given offset into this memory object is valid, i.e., suitable for passing to dereference.

Implements Sci::SegmentObj.

dereference()

SegmentRef Sci::DataStack::dereference ( reg_t  pointer )

overridevirtual

Dereferences a raw memory pointer.

Parameters

reg	reference to dereference

Returns

the data block referenced

Reimplemented from Sci::SegmentObj.

findCanonicAddress()

reg_t Sci::DataStack::findCanonicAddress ( SegManager *  segMan, reg_t  sub_addr  ) const

inlineoverridevirtual

Finds the canonic address associated with sub_reg. Used by the garbage collector.

For each valid address a, there exists a canonic address c(a) such that c(a) = c(c(a)). This address "governs" a in the sense that deallocating c(a) will deallocate a.

Parameters

sub_addr

base address whose canonic address is to be found

Reimplemented from Sci::SegmentObj.

listAllOutgoingReferences()

Common::Array<reg_t> Sci::DataStack::listAllOutgoingReferences ( reg_t  object ) const

overridevirtual

Iterates over all references reachable from the specified object. Used by the garbage collector.

Parameters

object

object (within the current segment) to analyze

Returns

a list of outgoing references within the object

Note

This function may also choose to report numbers (segment 0) as adresses

Reimplemented from Sci::SegmentObj.

Member Data Documentation

_capacity

uint Sci::DataStack::_capacity

Number of stack entries

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The documentation for this struct was generated from the following file:

• engines/sci/engine/segment.h