Include dependency graph for mem.h:

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Data Structures
struct	pw_mempool

class	pw_memblock

struct	pw_memmap
	a mapped region of a pw_memblock More...

struct	pw_mempool_events

struct	pw_map_range
	parameters to map a memory range More...

Macros
#define	PW_VERSION_MEMPOOL_EVENTS 0

#define	PW_MAP_RANGE_INIT (struct pw_map_range){ 0, }

Enumerations
enum	pw_memmap_flags { PW_MEMMAP_FLAG_NONE = 0, PW_MEMMAP_FLAG_READ = (1 << 0), PW_MEMMAP_FLAG_WRITE = (1 << 1), PW_MEMMAP_FLAG_TWICE = (1 << 2), PW_MEMMAP_FLAG_PRIVATE = (1 << 3), PW_MEMMAP_FLAG_READWRITE = PW_MEMMAP_FLAG_READ \| PW_MEMMAP_FLAG_WRITE }

Functions
struct pw_mempool *	pw_mempool_new (struct pw_properties *props)
	Create a new memory pool. More...

void	pw_mempool_add_listener (struct pw_mempool pool, struct spa_hook listener, const struct pw_mempool_events events, void data)
	Listen for events. More...

void	pw_mempool_clear (struct pw_mempool *pool)
	Clear a pool. More...

void	pw_mempool_destroy (struct pw_mempool *pool)
	Clear and destroy a pool. More...

struct pw_memblock *	pw_mempool_alloc (struct pw_mempool *pool, enum pw_memblock_flags flags, uint32_t type, size_t size)
	Allocate a memory block from the pool. More...

struct pw_memblock *	pw_mempool_import_block (struct pw_mempool pool, struct pw_memblock mem)
	Import a block from another pool. More...

struct pw_memblock *	pw_mempool_import (struct pw_mempool *pool, enum pw_memblock_flags flags, uint32_t type, int fd)
	Import an fd into the pool. More...

void	pw_memblock_free (struct pw_memblock *mem)
	Free a memblock regardless of the refcount and destroy all mappings. More...

int	pw_mempool_remove_id (struct pw_mempool *pool, uint32_t id)
	Remove a memblock for given id. More...

struct pw_memblock *	pw_mempool_find_ptr (struct pw_mempool pool, const void ptr)
	Find memblock for given ptr. More...

struct pw_memblock *	pw_mempool_find_id (struct pw_mempool *pool, uint32_t id)
	Find memblock for given id. More...

struct pw_memblock *	pw_mempool_find_fd (struct pw_mempool *pool, int fd)
	Find memblock for given fd. More...

struct pw_memmap *	pw_memblock_map (struct pw_memblock *block, enum pw_memmap_flags flags, uint32_t offset, uint32_t size, uint32_t tag[5])
	Map a region of a memory block. More...

struct pw_memmap *	pw_mempool_map_id (struct pw_mempool *pool, uint32_t id, enum pw_memmap_flags flags, uint32_t offset, uint32_t size, uint32_t tag[5])
	Map a region of a memory block with id. More...

struct pw_memmap *	pw_mempool_import_map (struct pw_mempool pool, struct pw_mempool other, void *data, uint32_t size, uint32_t tag[5])

struct pw_memmap *	pw_mempool_find_tag (struct pw_mempool *pool, uint32_t tag[5], size_t size)
	find a map with the given tag More...

int	pw_memmap_free (struct pw_memmap *map)
	Unmap a region. More...

Macro Definition Documentation

◆ PW_MAP_RANGE_INIT

#define PW_MAP_RANGE_INIT (struct pw_map_range){ 0, }

◆ PW_VERSION_MEMPOOL_EVENTS

#define PW_VERSION_MEMPOOL_EVENTS 0

Enumeration Type Documentation

◆ pw_memmap_flags

enum pw_memmap_flags

Enumerator
PW_MEMMAP_FLAG_NONE
PW_MEMMAP_FLAG_READ	map in read mode
PW_MEMMAP_FLAG_WRITE	map in write mode
PW_MEMMAP_FLAG_TWICE	map the same area twice after each other, creating a circular ringbuffer
PW_MEMMAP_FLAG_PRIVATE	writes will be private
PW_MEMMAP_FLAG_READWRITE

Function Documentation

◆ pw_memblock_free()

void pw_memblock_free ( struct pw_memblock * mem )

Free a memblock regardless of the refcount and destroy all mappings.

◆ pw_memblock_map()

struct pw_memmap* pw_memblock_map	(	struct pw_memblock *	block,
		enum pw_memmap_flags	flags,
		uint32_t	offset,
		uint32_t	size,
		uint32_t	tag[5]
	)

Map a region of a memory block.

References pw_memblock::pool.

Referenced by pw_memblock::pw_mempool_alloc(), and pw_mempool_map_id().

◆ pw_memmap_free()

int pw_memmap_free ( struct pw_memmap * map )

Unmap a region.

References mapping::block, pw_memblock::fd, memmap::link, memmap::mapping, NAME, pw_memblock::pool, pw_memmap::ptr, pw_log::pw_log_debug, mapping::ref, memblock::this, and memmap::this.

Referenced by pw_memblock::pw_memblock_free().

◆ pw_mempool_add_listener()

void pw_mempool_add_listener	(	struct pw_mempool *	pool,
		struct spa_hook *	listener,
		const struct pw_mempool_events *	events,
		void *	data
	)

Listen for events.

Referenced by pw_impl_client::pw_context_create_client().

◆ pw_mempool_alloc()

struct pw_memblock* pw_mempool_alloc	(	struct pw_mempool *	pool,
		enum pw_memblock_flags	flags,
		uint32_t	type,
		size_t	size
	)

Allocate a memory block from the pool.

◆ pw_mempool_clear()

void pw_mempool_clear ( struct pw_mempool * pool )

Clear a pool.

References memblock::link, NAME, pw_log::pw_log_debug, pw_memblock::pw_memblock_free(), and memblock::this.

Referenced by pw_mempool_destroy().

◆ pw_mempool_destroy()

void pw_mempool_destroy ( struct pw_mempool * pool )

Clear and destroy a pool.

References NAME, pw_mempool::props, pw_log::pw_log_debug, pw_map::pw_map_clear(), pw_mempool_clear(), pw_mempool_emit_destroy, and pw_properties::pw_properties_free().

◆ pw_mempool_find_fd()

struct pw_memblock* pw_mempool_find_fd	(	struct pw_mempool *	pool,
		int	fd
	)

Find memblock for given fd.

◆ pw_mempool_find_id()

struct pw_memblock* pw_mempool_find_id	(	struct pw_mempool *	pool,
		uint32_t	id
	)

Find memblock for given id.

References NAME, pw_log::pw_log_debug, pw_map::pw_map_lookup(), and memblock::this.

◆ pw_mempool_find_ptr()

struct pw_memblock* pw_mempool_find_ptr	(	struct pw_mempool *	pool,
		const void *	ptr
	)

Find memblock for given ptr.

References pw_memblock::id, mapping::link, memblock::mappings, NAME, mapping::ptr, pw_log::pw_log_debug, mapping::size, and memblock::this.

Referenced by pw_mempool_import_map().

◆ pw_mempool_find_tag()

struct pw_memmap* pw_mempool_find_tag	(	struct pw_mempool *	pool,
		uint32_t	tag[5],
		size_t	size
	)

find a map with the given tag

References memmap::link, memblock::memmaps, NAME, pw_log::pw_log_debug, pw_memmap::tag, and memmap::this.

◆ pw_mempool_import()

struct pw_memblock* pw_mempool_import	(	struct pw_mempool *	pool,
		enum pw_memblock_flags	flags,
		uint32_t	type,
		int	fd
	)

Import an fd into the pool.

Referenced by pw_mempool_import_block().

◆ pw_mempool_import_block()

struct pw_memblock* pw_mempool_import_block	(	struct pw_mempool *	pool,
		struct pw_memblock *	mem
	)

Import a block from another pool.

References pw_memblock::fd, pw_memblock::flags, NAME, pw_memblock::pool, pw_log::pw_log_debug, PW_MEMBLOCK_FLAG_DONT_CLOSE, pw_mempool_import(), and pw_memblock::type.

Referenced by pw_mempool_import_map().

◆ pw_mempool_import_map()

struct pw_memmap* pw_mempool_import_map	(	struct pw_mempool *	pool,
		struct pw_mempool *	other,
		void *	data,
		uint32_t	size,
		uint32_t	tag[5]
	)

References pw_memmap::block, mapping::block, pw_memblock::map, pw_memmap::offset, pw_mempool_find_ptr(), pw_mempool_import_block(), and pw_memblock::ref.

◆ pw_mempool_map_id()

struct pw_memmap* pw_mempool_map_id	(	struct pw_mempool *	pool,
		uint32_t	id,
		enum pw_memmap_flags	flags,
		uint32_t	offset,
		uint32_t	size,
		uint32_t	tag[5]
	)

Map a region of a memory block with id.

References pw_map::pw_map_lookup(), pw_memblock_map(), and memblock::this.

◆ pw_mempool_new()

struct pw_mempool* pw_mempool_new ( struct pw_properties * props )

Create a new memory pool.

References NAME, pw_mempool::props, pw_log::pw_log_debug, pw_map::pw_map_init(), and impl::this.