OSAlloc.c File Reference

#include <platform.h>
#include <dolphin/os.h>
#include <dolphin/os/OSAlloc.h>

Macros
#define	InRange(addr, start, end)    ((u8*) (start) <= (u8*) (addr) && (u8*) (addr) < (u8*) (end))
#define	OFFSET(addr, align)   (((uintptr_t) (addr) & ((align) - 1)))
#define	ALIGNMENT   32
#define	MINOBJSIZE   64
#define	CHECK(line, condition)

Functions
static void *	DLAddFront (HeapCell *neighbor, HeapCell *cell)
	Inserts cell before neighbor and returns cell.
static HeapCell *	DLExtract (HeapCell *list, HeapCell *cell)
	Removes cell from list and returns list. *‍/.
static HeapCell *	DLInsert (HeapCell *list, HeapCell *cell, UNK_T _)
void *	OSAllocFromHeap (OSHeapHandle heap, size_t size)
void	OSFreeToHeap (OSHeapHandle heap, void *ptr)
OSHeapHandle	OSSetCurrentHeap (OSHeapHandle heap)
void *	OSInitAlloc (void *arenaStart, void *arenaEnd, int maxHeaps)
OSHeapHandle	OSCreateHeap (void *start, void *end)
void	OSDestroyHeap (size_t idx)
size_t	OSCheckHeap (OSHeapHandle heap)

Variables
static Heap *	HeapArray
static ssize_t	NumHeaps
static void *	ArenaStart
static void *	ArenaEnd
volatile OSHeapHandle	__OSCurrHeap = -1
static char	_unused_str0 [] = "\nOSDumpHeap(%d):\n"
static char	_unused_str1 [] = "--------Inactive\n"
static char	_unused_str2 [] = "addr\tsize\t\tend\tprev\tnext\n"
static char	_unused_str3 [] = "--------Allocated\n"
static char	_unused_str4 [] = "%x\t%d\t%x\t%x\t%x\n"
static char	_unused_str5 [] = "--------Free\n"

Macro Definition Documentation

InRange

#define InRange	(		addr,
			start,
			end
	)		((u8*) (start) <= (u8*) (addr) && (u8*) (addr) < (u8*) (end))

OFFSET

#define OFFSET	(		addr,
			align
	)		(((uintptr_t) (addr) & ((align) - 1)))

ALIGNMENT

#define ALIGNMENT   32

MINOBJSIZE

#define MINOBJSIZE   64

CHECK

#define CHECK	(		line,
			condition
	)

Value:

    if (!(condition)) {                                                       \
        OSReport("OSCheckHeap: Failed " #condition " in %d", line);           \
        return -1;                                                            \
    }

Function Documentation

DLAddFront()

static void * DLAddFront ( HeapCell *  neighbor, HeapCell *  cell  )

static

Inserts cell before neighbor and returns cell.

DLExtract()

static HeapCell * DLExtract ( HeapCell *  list, HeapCell *  cell  )

static

Removes cell from list and returns list. *‍/.

DLInsert()

static HeapCell * DLInsert ( HeapCell *  list, HeapCell *  cell, UNK_T  _  )

static

Parameters

list
cell
_	Needed to match OSFreeToHeap.

OSAllocFromHeap()

void * OSAllocFromHeap	(	OSHeapHandle	heap,
		size_t	size
	)

OSFreeToHeap()

void OSFreeToHeap	(	OSHeapHandle	heap,
		void *	ptr
	)

OSSetCurrentHeap()

OSHeapHandle OSSetCurrentHeap

(

OSHeapHandle

heap

)

OSInitAlloc()

void * OSInitAlloc	(	void *	arenaStart,
		void *	arenaEnd,
		int	maxHeaps
	)

OSCreateHeap()

OSHeapHandle OSCreateHeap	(	void *	start,
		void *	end
	)

OSDestroyHeap()

void OSDestroyHeap

(

size_t

idx

)

OSCheckHeap()

size_t OSCheckHeap

(

OSHeapHandle

heap

)

Variable Documentation

HeapArray

Heap* HeapArray

static

NumHeaps

ssize_t NumHeaps

static

ArenaStart

void* ArenaStart

static

ArenaEnd

void* ArenaEnd

static

__OSCurrHeap

volatile OSHeapHandle __OSCurrHeap = -1

_unused_str0

char _unused_str0[] = "\nOSDumpHeap(%d):\n"

static

_unused_str1

char _unused_str1[] = "--------Inactive\n"

static

_unused_str2

char _unused_str2[] = "addr\tsize\t\tend\tprev\tnext\n"

static

_unused_str3

char _unused_str3[] = "--------Allocated\n"

static

_unused_str4

char _unused_str4[] = "%x\t%d\t%x\t%x\t%x\n"

static

_unused_str5

char _unused_str5[] = "--------Free\n"

static