svm_fifo.h File Reference

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Data Structures
struct	ooo_segment_t
	Out-of-order segment. More...
struct	svm_fifo_t

Macros
#define	OOO_SEGMENT_INVALID_INDEX   ((u32)~0)

Enumerations
enum	svm_lock_tag_t { SVM_FIFO_TAG_NOT_HELD = 0, SVM_FIFO_TAG_DEQUEUE, SVM_FIFO_TAG_ENQUEUE }

Functions
static int	svm_fifo_lock (svm_fifo_t *f, u32 pid, u32 tag, int nowait)
static void	svm_fifo_unlock (svm_fifo_t *f)
static u32	svm_fifo_max_dequeue (svm_fifo_t *f)
static u32	svm_fifo_max_enqueue (svm_fifo_t *f)
static u8	svm_fifo_has_ooo_data (svm_fifo_t *f)
svm_fifo_t *	svm_fifo_create (u32 data_size_in_bytes)
	create an svm fifo, in the current heap. More...
int	svm_fifo_enqueue_nowait (svm_fifo_t *f, int pid, u32 max_bytes, u8 *copy_from_here)
int	svm_fifo_enqueue_with_offset (svm_fifo_t *f, int pid, u32 offset, u32 required_bytes, u8 *copy_from_here)
int	svm_fifo_dequeue_nowait (svm_fifo_t *f, int pid, u32 max_bytes, u8 *copy_here)
int	svm_fifo_peek (svm_fifo_t *f, int pid, u32 offset, u32 max_bytes, u8 *copy_here)
int	svm_fifo_dequeue_drop (svm_fifo_t *f, int pid, u32 max_bytes)
static ooo_segment_t *	svm_fifo_newest_ooo_segment (svm_fifo_t *f)
static u32	ooo_segment_offset (svm_fifo_t *f, ooo_segment_t *s)
static u32	ooo_segment_end_offset (svm_fifo_t *f, ooo_segment_t *s)

Macro Definition Documentation

#define OOO_SEGMENT_INVALID_INDEX   ((u32)~0)

Definition at line 43 of file svm_fifo.h.

Enumeration Type Documentation

enum svm_lock_tag_t

Enumerator
SVM_FIFO_TAG_NOT_HELD
SVM_FIFO_TAG_DEQUEUE
SVM_FIFO_TAG_ENQUEUE

Definition at line 26 of file svm_fifo.h.

Function Documentation

static u32 ooo_segment_end_offset ( svm_fifo_t *  f, ooo_segment_t *  s  )

inlinestatic

Definition at line 144 of file svm_fifo.h.

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static u32 ooo_segment_offset ( svm_fifo_t *  f, ooo_segment_t *  s  )

inlinestatic

Definition at line 138 of file svm_fifo.h.

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svm_fifo_t* svm_fifo_create

(

u32

data_size_in_bytes

)

create an svm fifo, in the current heap.

Fails vs blow up the process

Definition at line 20 of file svm_fifo.c.

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int svm_fifo_dequeue_drop	(	svm_fifo_t *	f,
		int	pid,
		u32	max_bytes
	)

Definition at line 527 of file svm_fifo.c.

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int svm_fifo_dequeue_nowait	(	svm_fifo_t *	f,
		int	pid,
		u32	max_bytes,
		u8 *	copy_here
	)

Definition at line 484 of file svm_fifo.c.

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int svm_fifo_enqueue_nowait	(	svm_fifo_t *	f,
		int	pid,
		u32	max_bytes,
		u8 *	copy_from_here
	)

Definition at line 359 of file svm_fifo.c.

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int svm_fifo_enqueue_with_offset	(	svm_fifo_t *	f,
		int	pid,
		u32	offset,
		u32	required_bytes,
		u8 *	copy_from_here
	)

Definition at line 422 of file svm_fifo.c.

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static u8 svm_fifo_has_ooo_data ( svm_fifo_t *  f )

inlinestatic

Definition at line 110 of file svm_fifo.h.

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static int svm_fifo_lock ( svm_fifo_t *  f, u32  pid, u32  tag, int  nowait  )

inlinestatic

Definition at line 74 of file svm_fifo.h.

static u32 svm_fifo_max_dequeue ( svm_fifo_t *  f )

inlinestatic

Definition at line 98 of file svm_fifo.h.

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static u32 svm_fifo_max_enqueue ( svm_fifo_t *  f )

inlinestatic

Definition at line 104 of file svm_fifo.h.

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static ooo_segment_t* svm_fifo_newest_ooo_segment ( svm_fifo_t *  f )

inlinestatic

Definition at line 132 of file svm_fifo.h.

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int svm_fifo_peek	(	svm_fifo_t *	f,
		int	pid,
		u32	offset,
		u32	max_bytes,
		u8 *	copy_here
	)

Definition at line 491 of file svm_fifo.c.

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static void svm_fifo_unlock ( svm_fifo_t *  f )

inlinestatic

Definition at line 89 of file svm_fifo.h.