posixmemory.h File Reference

Detailed Description

Memory subsystem features for the Posix platform.

(C) 2008 Radon Labs GmbH (C) 2013-2018 Individual contributors, see AUTHORS file

#include "core/config.h"
#include "core/debug.h"
#include "threading/interlocked.h"
#include "memory/posix/posixmemoryconfig.h"
#include <malloc.h>
#include <string.h>
#include <sys/mman.h>

Go to the source code of this file.

Classes
struct	Memory::TotalMemoryStatus
	Get the system's total current memory, this does not only include Nebula's memory allocations but the memory usage of the entire system. More...

Namespaces
namespace	Memory
	Allocates memory using the TLSF method (http://www.gii.upv.es/tlsf/files/ecrts04_tlsf.pdf), with extended handling of padding to better suit GPUs.

Macros
#define	MEMORY_POSIXMEMORY_H
#define	StackAlloc(size)   alloca(size);

Functions
void *	Memory::Alloc (HeapType heapType, size_t size, size_t alignment)
	Allocate a block of memory from one of the global heaps.
void *	Memory::Realloc (HeapType heapType, void *ptr, size_t size)
	Re-Allocate a block of memory from one of the global heaps.
void	Memory::Free (HeapType heapType, void *ptr)
	Free a block of memory.
__forceinline void *	Memory::AllocVirtual (size_t size)
	allocate a range of virtual memory space
__forceinline void	Memory::DecommitVirtual (void *ptr, size_t size)
	decommit virtual memory
__forceinline void	Memory::CommitVirtual (void *ptr, size_t size)
	commit virtual memory
__forceinline void	Memory::FreeVirtual (void *ptr, size_t size)
	free virtual memory
void	Memory::Copy (const void *from, void *to, size_t numBytes)
	Copy a chunk of memory (note the argument order is different from memcpy()!!!)
__forceinline void	Memory::Move (const void *from, void *to, size_t numBytes)
	Move a chunk of memory, can handle overlapping regions.
template<typename T >
__forceinline void	Memory::MoveElements (const T *from, T *to, size_t numElements)
	Move a chunk of memory, can handle overlapping regions.
template<typename T >
__forceinline void	Memory::CopyElements (const T *from, T *to, size_t numElements)
	Copy a chunk of memory (note the argument order is different from memcpy()!!!)
__forceinline void	Memory::CopyToGraphicsMemory (const void *from, void *to, size_t numBytes)
	Copy data from a system memory buffer to graphics resource memory.
void	Memory::Clear (void *ptr, size_t numBytes)
	Overwrite a chunk of memory with 0's.
void	Memory::Fill (void *ptr, size_t numBytes, unsigned char value)
	Fill memory with a specific byte.
char *	Memory::DuplicateCString (const char *from)
	Duplicate a 0-terminated string, this method should no longer be used!
bool	Memory::IsOverlapping (const unsigned char *srcPtr, size_t srcSize, const unsigned char *dstPtr, size_t dstSize)
	Test if 2 areas of memory areas are overlapping.
TotalMemoryStatus	Memory::GetTotalMemoryStatus ()
	Get the system's total memory status.

Macro Definition Documentation

MEMORY_POSIXMEMORY_H

#define MEMORY_POSIXMEMORY_H

StackAlloc

#define StackAlloc

(

size

)

alloca(size);