25 #ifndef PIPEWIRE_MEM_H 26 #define PIPEWIRE_MEM_H 86 #define PW_VERSION_MEMPOOL_EVENTS 0 104 struct spa_hook *listener,
131 static inline void pw_memblock_unref(
struct pw_memblock *mem)
177 #define PW_MAP_RANGE_INIT (struct pw_map_range){ 0, } 181 static inline void pw_map_range_init(
struct pw_map_range *range,
182 uint32_t offset, uint32_t size,
185 range->
offset = SPA_ROUND_DOWN_N(offset, page_size);
187 range->
size = SPA_ROUND_UP_N(range->
start + size, page_size);
parameters to map a memory range
Definition: mem.h:171
struct pw_memblock * pw_mempool_find_id(struct pw_mempool *pool, uint32_t id)
Find memblock for given id.
Definition: mem.c:702
A collection of key/value pairs.
Definition: properties.h:45
int pw_memmap_free(struct pw_memmap *map)
Unmap a region.
Definition: mem.c:399
struct pw_memmap * map
optional map when PW_MEMBLOCK_FLAG_MAP was given
Definition: mem.h:72
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.
Definition: mem.c:533
uint32_t offset
offset in first page with start of data
Definition: mem.h:173
struct pw_memblock * block
owner memblock
Definition: mem.h:77
struct pw_memblock * pw_mempool_find_ptr(struct pw_mempool *pool, const void *ptr)
Find memblock for given ptr.
Definition: mem.c:683
void * ptr
mapped pointer
Definition: mem.h:78
uint32_t type
type of the fd, one of enum spa_data_type
Definition: mem.h:69
pw_memmap_flags
Definition: mem.h:46
pw_memblock_flags
Flags passed to pw_mempool_alloc()
Definition: mem.h:35
uint32_t version
Definition: mem.h:87
void pw_mempool_add_listener(struct pw_mempool *pool, struct spa_hook *listener, const struct pw_mempool_events *events, void *data)
Listen for events.
Definition: mem.c:186
uint32_t flags
flags for the memory block on of enum pw_memblock_flags
Definition: mem.h:68
writes will be private
Definition: mem.h:52
uint32_t size
size in memblock
Definition: mem.h:81
int fd
fd
Definition: mem.h:70
struct pw_memblock * pw_mempool_find_fd(struct pw_mempool *pool, int fd)
Find memblock for given fd.
Definition: mem.c:716
uint32_t offset
offset in memblock
Definition: mem.h:80
struct pw_mempool * pool
owner pool
Definition: mem.h:65
uint32_t start
Definition: mem.h:172
map in read mode
Definition: mem.h:48
struct pw_mempool * pw_mempool_new(struct pw_properties *props)
Create a new memory pool.
Definition: mem.c:133
void(* destroy)(void *data)
the pool is destroyed
Definition: mem.h:90
void(* added)(void *data, struct pw_memblock *block)
a new memory block is added to the pool
Definition: mem.h:93
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
Definition: mem.c:728
a mapped region of a pw_memblock
Definition: mem.h:76
uint32_t flags
flags for the mapping on of enum pw_memmap_flags
Definition: mem.h:79
void pw_mempool_clear(struct pw_mempool *pool)
Clear a pool.
Definition: mem.c:158
uint32_t id
unique id
Definition: mem.h:66
int ref
refcount
Definition: mem.h:67
map the same area twice afer eachother, creating a circular ringbuffer
Definition: mem.h:50
Memory block structure.
Definition: mem.h:64
uint32_t tag[5]
user tag
Definition: mem.h:82
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.
Definition: mem.c:341
uint32_t size
size of memory
Definition: mem.h:71
void(* removed)(void *data, struct pw_memblock *block)
a memory block is removed from the pool
Definition: mem.h:96
int pw_mempool_remove_id(struct pw_mempool *pool, uint32_t id)
Remove a memblock for given id.
Definition: mem.c:626
struct pw_properties * props
Definition: mem.h:59
SPA_EXPORT void pw_memblock_free(struct pw_memblock *block)
Free a memblock.
Definition: mem.c:650
struct pw_memblock * pw_mempool_import_block(struct pw_mempool *pool, struct pw_memblock *mem)
Import a block from another pool.
Definition: mem.c:569
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.
Definition: mem.c:384
uint32_t size
page aligned offset to map
Definition: mem.h:174
void pw_mempool_destroy(struct pw_mempool *pool)
Clear and destroy a pool.
Definition: mem.c:167
map in write mode
Definition: mem.h:49
SPA_EXPORT struct pw_memblock * pw_mempool_alloc(struct pw_mempool *pool, enum pw_memblock_flags flags, uint32_t type, size_t size)
Create a new memblock.
Definition: mem.c:440
struct pw_memmap * pw_mempool_import_map(struct pw_mempool *pool, struct pw_mempool *other, void *data, uint32_t size, uint32_t tag[5])
Definition: mem.c:578