ssvm.h File Reference

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Data Structures
struct	ssvm_shared_header_t
struct	ssvm_private_t

Macros
#define	MMAP_PAGESIZE   (clib_mem_get_page_size())
#define	SSVM_N_OPAQUE   7
#define	foreach_ssvm_api_error
#define	SSVM_API_ERROR_NO_NAME   (-10)

Typedefs
typedef enum ssvm_segment_type_	ssvm_segment_type_t

Enumerations
enum	ssvm_segment_type_ { SSVM_SEGMENT_SHM = 0, SSVM_SEGMENT_MEMFD, SSVM_SEGMENT_PRIVATE, SSVM_N_SEGMENT_TYPES }
enum	ssvm_api_error_enum_t { foreach_ssvm_api_error }

Functions
static void	ssvm_lock (ssvm_shared_header_t *h, u32 my_pid, u32 tag)
static void	ssvm_lock_non_recursive (ssvm_shared_header_t *h, u32 tag)
static void	ssvm_unlock (ssvm_shared_header_t *h)
static void	ssvm_unlock_non_recursive (ssvm_shared_header_t *h)
static void *	ssvm_push_heap (ssvm_shared_header_t *sh)
static void	ssvm_pop_heap (void *oldheap)
static void *	ssvm_mem_alloc (ssvm_private_t *ssvm, uword size)
int	ssvm_master_init (ssvm_private_t *ssvm, ssvm_segment_type_t type)
int	ssvm_slave_init (ssvm_private_t *ssvm, ssvm_segment_type_t type)
void	ssvm_delete (ssvm_private_t *ssvm)
int	ssvm_master_init_shm (ssvm_private_t *ssvm)
int	ssvm_slave_init_shm (ssvm_private_t *ssvm)
void	ssvm_delete_shm (ssvm_private_t *ssvm)
int	ssvm_master_init_memfd (ssvm_private_t *memfd)
	Initialize memfd segment master. More...
int	ssvm_slave_init_memfd (ssvm_private_t *memfd)
	Initialize memfd segment slave. More...
void	ssvm_delete_memfd (ssvm_private_t *memfd)
int	ssvm_master_init_private (ssvm_private_t *ssvm)
	Initialize segment in a private heap. More...
int	ssvm_slave_init_private (ssvm_private_t *ssvm)
void	ssvm_delete_private (ssvm_private_t *ssvm)
ssvm_segment_type_t	ssvm_type (const ssvm_private_t *ssvm)
u8 *	ssvm_name (const ssvm_private_t *ssvm)

Macro Definition Documentation

#define foreach_ssvm_api_error

Value:

_(NO_NAME, "No shared segment name", -100)      \
_(NO_SIZE, "Size not set (master)", -101)       \
_(CREATE_FAILURE, "Create failed", -102)        \
_(SET_SIZE, "Set size failed", -103)            \
_(MMAP, "mmap failed", -104)                    \
_(SLAVE_TIMEOUT, "Slave map timeout", -105)

Definition at line 169 of file ssvm.h.

#define MMAP_PAGESIZE   (clib_mem_get_page_size())

Definition at line 42 of file ssvm.h.

#define SSVM_API_ERROR_NO_NAME   (-10)

Definition at line 184 of file ssvm.h.

#define SSVM_N_OPAQUE   7

Definition at line 45 of file ssvm.h.

Typedef Documentation

typedef enum ssvm_segment_type_ ssvm_segment_type_t

Enumeration Type Documentation

enum ssvm_api_error_enum_t

Enumerator
foreach_ssvm_api_error

Definition at line 177 of file ssvm.h.

enum ssvm_segment_type_

Enumerator
SSVM_SEGMENT_SHM
SSVM_SEGMENT_MEMFD
SSVM_SEGMENT_PRIVATE
SSVM_N_SEGMENT_TYPES	Private segments.

Definition at line 47 of file ssvm.h.

Function Documentation

void ssvm_delete

(

ssvm_private_t *

ssvm

)

Definition at line 387 of file ssvm.c.

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void ssvm_delete_memfd

(

ssvm_private_t *

memfd

)

Definition at line 314 of file ssvm.c.

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void ssvm_delete_private

(

ssvm_private_t *

ssvm

)

Definition at line 367 of file ssvm.c.

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void ssvm_delete_shm

(

ssvm_private_t *

ssvm

)

Definition at line 185 of file ssvm.c.

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static void ssvm_lock ( ssvm_shared_header_t *  h, u32  my_pid, u32  tag  )

inlinestatic

Definition at line 98 of file ssvm.h.

static void ssvm_lock_non_recursive ( ssvm_shared_header_t *  h, u32  tag  )

inlinestatic

Definition at line 115 of file ssvm.h.

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int ssvm_master_init	(	ssvm_private_t *	ssvm,
		ssvm_segment_type_t	type
	)

Definition at line 375 of file ssvm.c.

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int ssvm_master_init_memfd

(

ssvm_private_t *

memfd

)

Initialize memfd segment master.

Definition at line 209 of file ssvm.c.

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int ssvm_master_init_private

(

ssvm_private_t *

ssvm

)

Initialize segment in a private heap.

Definition at line 325 of file ssvm.c.

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int ssvm_master_init_shm

(

ssvm_private_t *

ssvm

)

Definition at line 29 of file ssvm.c.

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static void* ssvm_mem_alloc ( ssvm_private_t *  ssvm, uword  size  )

inlinestatic

Definition at line 158 of file ssvm.h.

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u8* ssvm_name

(

const ssvm_private_t *

ssvm

)

Definition at line 399 of file ssvm.c.

static void ssvm_pop_heap ( void *  oldheap )

inlinestatic

Definition at line 152 of file ssvm.h.

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static void* ssvm_push_heap ( ssvm_shared_header_t *  sh )

inlinestatic

Definition at line 144 of file ssvm.h.

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int ssvm_slave_init	(	ssvm_private_t *	ssvm,
		ssvm_segment_type_t	type
	)

Definition at line 381 of file ssvm.c.

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int ssvm_slave_init_memfd

(

ssvm_private_t *

memfd

)

Initialize memfd segment slave.

Subtly different than svm_slave_init. The caller needs to acquire a usable file descriptor for the memfd segment e.g. via vppinfra/socket.c:default_socket_recvmsg

Definition at line 262 of file ssvm.c.

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int ssvm_slave_init_private

(

ssvm_private_t *

ssvm

)

Definition at line 360 of file ssvm.c.

int ssvm_slave_init_shm

(

ssvm_private_t *

ssvm

)

Definition at line 115 of file ssvm.c.

ssvm_segment_type_t ssvm_type

(

const ssvm_private_t *

ssvm

)

Definition at line 393 of file ssvm.c.

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static void ssvm_unlock ( ssvm_shared_header_t *  h )

inlinestatic

Definition at line 124 of file ssvm.h.

static void ssvm_unlock_non_recursive ( ssvm_shared_header_t *  h )

inlinestatic

Definition at line 136 of file ssvm.h.

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