cohtml::IVirtualAllocator Class Reference

Virtual memory allocator interface used by Cohtml for scripting memory allocations. More...

Public Member Functions
	IVirtualAllocator ()
virtual	~IVirtualAllocator ()
virtual size_t	GetAllocationPageSize () const =0
virtual size_t	GetCommitPageSize () const =0
virtual void *	Allocate (void *address, size_t size, size_t alignment, int protection, int flags)=0
	Reserve and/or commit a memory region. More...
virtual bool	Free (void *address, size_t size, int flags)=0
	Releases or decommits a memory region. More...

Detailed Description

Virtual memory allocator interface used by Cohtml for scripting memory allocations.

Constructor & Destructor Documentation

IVirtualAllocator()

cohtml::IVirtualAllocator::IVirtualAllocator

(

)

~IVirtualAllocator()

virtual cohtml::IVirtualAllocator::~IVirtualAllocator ( )

virtual

Member Function Documentation

Allocate()

virtual void* cohtml::IVirtualAllocator::Allocate ( void *  address, size_t  size, size_t  alignment, int  protection, int  flags  )

pure virtual

Reserve and/or commit a memory region.

Parameters

address	a hint when reserving memory and a concrete address when commiting.
size	the number of bytes to allocate.
alignment	the required alignment for the return address.
protection	specifies a protection type for the memory region.
flags	type of the allocation (commit, reserve or reserve & commit).

Returns

address of the allocated memory region.

Free()

virtual bool cohtml::IVirtualAllocator::Free ( void *  address, size_t  size, int  flags  )

pure virtual

Releases or decommits a memory region.

Parameters

address	a concrete address to release or decommit.
size	the number of bytes to deallocate.
flags	type of the deallocation (decommit or release).

Returns

true if the function succeeds, otherwise false.

Note

A release call is expected to also decommit the memory.

GetAllocationPageSize()

virtual size_t cohtml::IVirtualAllocator::GetAllocationPageSize ( ) const

pure virtual

Returns

the page granularity for reserving memory.

GetCommitPageSize()

virtual size_t cohtml::IVirtualAllocator::GetCommitPageSize ( ) const

pure virtual

Returns

the page granularity for commiting memory.