segment_manager.c File Reference

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Functions
void	segment_manager_get_segment_info (u32 index, u8 **name, u32 *size)
static int	session_manager_add_segment_i (segment_manager_t *sm, u32 segment_size, u8 *segment_name)
int	session_manager_add_segment (segment_manager_t *sm)
int	session_manager_add_first_segment (segment_manager_t *sm, u32 segment_size)
segment_manager_t *	segment_manager_new ()
int	segment_manager_init (segment_manager_t *sm, segment_manager_properties_t *properties, u32 first_seg_size)
	Initializes segment manager based on options provided. More...
u8	segment_manager_has_fifos (segment_manager_t *sm)
static u8	segment_manager_app_detached (segment_manager_t *sm)
static void	segment_manager_del_segment (segment_manager_t *sm, u32 segment_index)
void	segment_manager_del_sessions (segment_manager_t *sm)
	Initiate disconnects for all sessions 'owned' by a segment manager. More...
void	segment_manager_del (segment_manager_t *sm)
	Removes segment manager. More...
void	segment_manager_init_del (segment_manager_t *sm)
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...
static clib_error_t *	segment_manager_show_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)

Variables
u32	segment_name_counter = 0
	Counter used to build segment names. More...
segment_manager_t *	segment_managers = 0
	Pool of segment managers. More...
u32 *	private_segment_indices
	Process private segment index. More...
u32	default_fifo_size = 1 << 16
	Default fifo and segment size. More...
u32	default_segment_size = 1 << 20
static vlib_cli_command_t	segment_manager_show_command
	(constructor) VLIB_CLI_COMMAND (segment_manager_show_command) More...

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 497 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 338 of file segment_manager.c.

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static u8 segment_manager_app_detached ( segment_manager_t *  sm )

static

Definition at line 215 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 441 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 522 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 propagates into transport.

Definition at line 298 of file segment_manager.c.

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static void segment_manager_del_segment ( segment_manager_t *  sm, u32  segment_index  )

static

Definition at line 221 of file segment_manager.c.

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void segment_manager_del_sessions

(

segment_manager_t *

sm

)

Initiate disconnects for all sessions 'owned' by a segment manager.

Definition at line 244 of file segment_manager.c.

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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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u8 segment_manager_has_fifos

(

segment_manager_t *

sm

)

Definition at line 197 of file segment_manager.c.

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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 174 of file segment_manager.c.

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void segment_manager_init_del

(

segment_manager_t *

sm

)

Definition at line 326 of file segment_manager.c.

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segment_manager_t* segment_manager_new

(

)

Definition at line 161 of file segment_manager.c.

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static clib_error_t* segment_manager_show_fn ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 540 of file segment_manager.c.

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int session_manager_add_first_segment	(	segment_manager_t *	sm,
		u32	segment_size
	)

Definition at line 149 of file segment_manager.c.

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int session_manager_add_segment

(

segment_manager_t *

sm

)

Definition at line 131 of file segment_manager.c.

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static int session_manager_add_segment_i ( segment_manager_t *  sm, u32  segment_size, u8 *  segment_name  )

inlinestatic

Definition at line 51 of file segment_manager.c.

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Variable Documentation

u32 default_fifo_size = 1 << 16

Default fifo and segment size.

TODO config.

Definition at line 38 of file segment_manager.c.

u32 default_segment_size = 1 << 20

Definition at line 39 of file segment_manager.c.

u32* private_segment_indices

Process private segment index.

Definition at line 33 of file segment_manager.c.

vlib_cli_command_t segment_manager_show_command

static

Initial value:

=
{
  .path = "show segment-manager",
  .short_help = "show segment-manager [segments][verbose]",
  .function = segment_manager_show_fn,
}

(constructor) VLIB_CLI_COMMAND (segment_manager_show_command)

Definition at line 622 of file segment_manager.c.

segment_manager_t* segment_managers = 0

Pool of segment managers.

Definition at line 28 of file segment_manager.c.

u32 segment_name_counter = 0

Counter used to build segment names.

Definition at line 23 of file segment_manager.c.