segment_manager.h File Reference

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Typedefs
typedef struct _segment_manager_properties	segment_manager_properties_t
typedef struct _segment_manager	segment_manager_t

Functions
static segment_manager_t *	segment_manager_new ()
static segment_manager_t *	segment_manager_get (u32 index)
static segment_manager_t *	segment_manager_get_if_valid (u32 index)
static u32	segment_manager_index (segment_manager_t *sm)
int	segment_manager_init (segment_manager_t *sm, segment_manager_properties_t *properties, u32 seg_size)
	Initializes segment manager based on options provided. More...
void	segment_manager_get_segment_info (u32 index, u8 **name, u32 *size)
int	session_manager_add_first_segment (segment_manager_t *sm, u32 segment_size)
int	session_manager_add_segment (segment_manager_t *sm)
void	segment_manager_del (segment_manager_t *sm)
	Removes segment manager. More...
int	segment_manager_alloc_session_fifos (segment_manager_t *sm, svm_fifo_t **server_rx_fifo, svm_fifo_t **server_tx_fifo, u32 *fifo_segment_index)
void	segment_manager_dealloc_fifos (u32 svm_segment_index, svm_fifo_t *rx_fifo, svm_fifo_t *tx_fifo)
unix_shared_memory_queue_t *	segment_manager_alloc_queue (segment_manager_t *sm, u32 queue_size)
	Allocates shm queue in the first segment. More...
void	segment_manager_dealloc_queue (segment_manager_t *sm, unix_shared_memory_queue_t *q)
	Frees shm queue allocated in the first segment. More...

Variables
segment_manager_t *	segment_managers
	Pool of segment managers. More...

Typedef Documentation

typedef struct _segment_manager_properties segment_manager_properties_t

typedef struct _segment_manager segment_manager_t

Function Documentation

unix_shared_memory_queue_t* segment_manager_alloc_queue	(	segment_manager_t *	sm,
		u32	queue_size
	)

Allocates shm queue in the first segment.

Definition at line 378 of file segment_manager.c.

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int segment_manager_alloc_session_fifos	(	segment_manager_t *	sm,
		svm_fifo_t **	server_rx_fifo,
		svm_fifo_t **	server_tx_fifo,
		u32 *	fifo_segment_index
	)

Definition at line 240 of file segment_manager.c.

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void segment_manager_dealloc_fifos	(	u32	svm_segment_index,
		svm_fifo_t *	rx_fifo,
		svm_fifo_t *	tx_fifo
	)

Definition at line 344 of file segment_manager.c.

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void segment_manager_dealloc_queue	(	segment_manager_t *	sm,
		unix_shared_memory_queue_t *	q
	)

Frees shm queue allocated in the first segment.

Definition at line 403 of file segment_manager.c.

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void segment_manager_del

(

segment_manager_t *

sm

)

Removes segment manager.

Since the fifos allocated in the segment keep backpointers to the sessions prior to removing the segment, we call session disconnect. This subsequently propages into transport.

Definition at line 178 of file segment_manager.c.

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static segment_manager_t* segment_manager_get ( u32  index )

inlinestatic

Definition at line 72 of file segment_manager.h.

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static segment_manager_t* segment_manager_get_if_valid ( u32  index )

inlinestatic

Definition at line 78 of file segment_manager.h.

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void segment_manager_get_segment_info	(	u32	index,
		u8 **	name,
		u32 *	size
	)

Definition at line 42 of file segment_manager.c.

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static u32 segment_manager_index ( segment_manager_t *  sm )

inlinestatic

Definition at line 86 of file segment_manager.h.

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int segment_manager_init	(	segment_manager_t *	sm,
		segment_manager_properties_t *	properties,
		u32	first_seg_size
	)

Initializes segment manager based on options provided.

Returns error if svm segment allocation fails.

Definition at line 138 of file segment_manager.c.

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static segment_manager_t* segment_manager_new ( )

inlinestatic

Definition at line 63 of file segment_manager.h.

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int session_manager_add_first_segment	(	segment_manager_t *	sm,
		u32	segment_size
	)

Definition at line 98 of file segment_manager.c.

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int session_manager_add_segment

(

segment_manager_t *

sm

)

Definition at line 80 of file segment_manager.c.

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Variable Documentation

segment_manager_t* segment_managers

Pool of segment managers.

Definition at line 28 of file segment_manager.c.