heap.h File Reference

VM Heap. More...

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Defines
#define	HEAP_GC_NF_THRESHOLD   (512)
#define	DEBUG_PRINT_HEAP_AVAIL(s)
Functions
PmReturn_t	heap_init (void)
PmReturn_t	heap_getChunk (uint16_t requestedsize, uint8_t **r_pchunk)
PmReturn_t	heap_freeChunk (pPmObj_t ptr)
uint16_t	heap_getAvail (void)

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Detailed Description

VM Heap.

VM heap header.

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Define Documentation

#define HEAP_GC_NF_THRESHOLD   (512)

The threshold of heap.avail under which the interpreter will run the GC just before starting a native session.

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Function Documentation

PmReturn_t heap_freeChunk

(

pPmObj_t

ptr

)

Places the chunk back in the heap.

Parameters:

ptr

Pointer to object to free.

uint16_t heap_getAvail

(

void

)

Returns:

Return number of bytes available in the heap

PmReturn_t heap_getChunk	(	uint16_t	requestedsize,
		uint8_t **	r_pchunk
	)

Returns a free chunk from the heap.

The chunk will be at least the requested size. The actual size can be found in the return chunk's od.od_size.

Parameters:

	requestedsize	Requested size of the chunk in bytes.
	r_pchunk	Addr of ptr to chunk (return).

Returns:

Return code

PmReturn_t heap_init

(

void

)

Initializes the heap for use.

Returns:

nothing.