memfd.h File Reference

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Data Structures
struct	memfd_shared_header_t
struct	memfd_private_t

Macros
#define	MMAP_PAGESIZE   (clib_mem_get_page_size())
#define	MEMFD_N_OPAQUE   7
#define	foreach_memfd_api_error
#define	MEMFD_API_ERROR_NO_NAME   (-10)
#define	F_LINUX_SPECIFIC_BASE   1024
#define	MFD_ALLOW_SEALING   0x0002U
#define	F_ADD_SEALS   (F_LINUX_SPECIFIC_BASE + 9)
#define	F_GET_SEALS   (F_LINUX_SPECIFIC_BASE + 10)
#define	F_SEAL_SEAL   0x0001 /* prevent further seals from being set */
#define	F_SEAL_SHRINK   0x0002 /* prevent file from shrinking */
#define	F_SEAL_GROW   0x0004 /* prevent file from growing */
#define	F_SEAL_WRITE   0x0008 /* prevent writes */

Enumerations
enum	memfd_api_error_enum_t { foreach_memfd_api_error }

Functions
static void	memfd_lock (memfd_shared_header_t *h, u32 my_pid, u32 tag)
static void	memfd_lock_non_recursive (memfd_shared_header_t *h, u32 tag)
static void	memfd_unlock (memfd_shared_header_t *h)
static void	memfd_unlock_non_recursive (memfd_shared_header_t *h)
static void *	memfd_push_heap (memfd_shared_header_t *sh)
static void	memfd_pop_heap (void *oldheap)
int	memfd_master_init (memfd_private_t *memfd, u32 master_index)
int	memfd_slave_init (memfd_private_t *memfd)
void	memfd_delete (memfd_private_t *memfd)

Macro Definition Documentation

#define F_ADD_SEALS   (F_LINUX_SPECIFIC_BASE + 9)

Definition at line 178 of file memfd.h.

#define F_GET_SEALS   (F_LINUX_SPECIFIC_BASE + 10)

Definition at line 179 of file memfd.h.

#define F_LINUX_SPECIFIC_BASE   1024

Definition at line 175 of file memfd.h.

#define F_SEAL_GROW   0x0004 /* prevent file from growing */

Definition at line 183 of file memfd.h.

#define F_SEAL_SEAL   0x0001 /* prevent further seals from being set */

Definition at line 181 of file memfd.h.

#define F_SEAL_SHRINK   0x0002 /* prevent file from shrinking */

Definition at line 182 of file memfd.h.

#define F_SEAL_WRITE   0x0008 /* prevent writes */

Definition at line 184 of file memfd.h.

#define foreach_memfd_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 150 of file memfd.h.

#define MEMFD_API_ERROR_NO_NAME   (-10)

Definition at line 165 of file memfd.h.

#define MEMFD_N_OPAQUE   7

Definition at line 47 of file memfd.h.

#define MFD_ALLOW_SEALING   0x0002U

Definition at line 177 of file memfd.h.

#define MMAP_PAGESIZE   (clib_mem_get_page_size())

Definition at line 44 of file memfd.h.

Enumeration Type Documentation

enum memfd_api_error_enum_t

Enumerator
foreach_memfd_api_error

Definition at line 158 of file memfd.h.

Function Documentation

void memfd_delete

(

memfd_private_t *

memfd

)

static void memfd_lock ( memfd_shared_header_t *  h, u32  my_pid, u32  tag  )

inlinestatic

Definition at line 91 of file memfd.h.

static void memfd_lock_non_recursive ( memfd_shared_header_t *  h, u32  tag  )

inlinestatic

Definition at line 108 of file memfd.h.

int memfd_master_init	(	memfd_private_t *	memfd,
		u32	master_index
	)

Definition at line 18 of file memfd.c.

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static void memfd_pop_heap ( void *  oldheap )

inlinestatic

Definition at line 145 of file memfd.h.

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static void* memfd_push_heap ( memfd_shared_header_t *  sh )

inlinestatic

Definition at line 137 of file memfd.h.

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int memfd_slave_init

(

memfd_private_t *

memfd

)

Definition at line 96 of file memfd.c.

static void memfd_unlock ( memfd_shared_header_t *  h )

inlinestatic

Definition at line 117 of file memfd.h.

static void memfd_unlock_non_recursive ( memfd_shared_header_t *  h )

inlinestatic

Definition at line 129 of file memfd.h.