memory_arena.c File Reference

#include "common/memory_arena.h"
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/mman.h>

Include dependency graph for memory_arena.c:

Data Structures
struct	dt_free_run_t

Macros
#define	_GNU_SOURCE

Typedefs
typedef struct dt_free_run_t	dt_free_run_t

Functions
gboolean	dt_cache_arena_calc (const dt_cache_arena_t *a, size_t size, uint32_t *out_pages, size_t *out_size)
void *	dt_cache_arena_alloc (dt_cache_arena_t *a, size_t size, size_t *out_size)
void	dt_cache_arena_free (dt_cache_arena_t *a, void *ptr, size_t size)
void	dt_cache_arena_stats (dt_cache_arena_t *a, uint32_t *out_total_free_pages, uint32_t *out_largest_free_run_pages)
void	dt_cache_arena_cleanup (dt_cache_arena_t *a)
int	dt_cache_arena_init (dt_cache_arena_t *a, size_t total_size)
gboolean	dt_cache_arena_ptr_in (const dt_cache_arena_t *a, const void *ptr)

Macro Definition Documentation

_GNU_SOURCE

#define _GNU_SOURCE

Typedef Documentation

dt_free_run_t

typedef struct dt_free_run_t dt_free_run_t

Function Documentation

dt_cache_arena_alloc()

void * dt_cache_arena_alloc	(	dt_cache_arena_t *	a,
		size_t	size,
		size_t *	out_size
	)

References dt_cache_arena_t::base, dt_cache_arena_calc(), dt_pthread_mutex_lock(), dt_pthread_mutex_unlock(), dt_cache_arena_t::free_runs, dt_cache_arena_t::lock, dt_cache_arena_t::page_size, and size.

Referenced by _arena_alloc_with_defrag().

dt_cache_arena_calc()

gboolean dt_cache_arena_calc	(	const dt_cache_arena_t *	a,
		size_t	size,
		uint32_t *	out_pages,
		size_t *	out_size
	)

References dt_cache_arena_t::base, FALSE, dt_cache_arena_t::num_pages, dt_cache_arena_t::page_size, size, and TRUE.

Referenced by _arena_alloc_with_defrag(), dt_cache_arena_alloc(), dt_cache_arena_free(), and dt_pixel_cache_new_entry().

dt_cache_arena_cleanup()

void dt_cache_arena_cleanup

(

dt_cache_arena_t *

a

)

References dt_cache_arena_t::base, dt_pthread_mutex_destroy(), dt_pthread_mutex_lock(), dt_pthread_mutex_unlock(), dt_cache_arena_t::free_runs, dt_cache_arena_t::lock, dt_cache_arena_t::num_pages, dt_cache_arena_t::page_size, dt_cache_arena_t::size, and TRUE.

Referenced by dt_dev_pixelpipe_cache_cleanup().

dt_cache_arena_free()

void dt_cache_arena_free	(	dt_cache_arena_t *	a,
		void *	ptr,
		size_t	size
	)

References dt_cache_arena_t::base, dt_cache_arena_calc(), dt_pthread_mutex_lock(), dt_pthread_mutex_unlock(), dt_cache_arena_t::free_runs, dt_free_run_t::length, dt_cache_arena_t::lock, dt_cache_arena_t::num_pages, dt_cache_arena_t::page_size, dt_cache_arena_t::size, size, and dt_free_run_t::start.

Referenced by _free_cache_entry(), and dt_pixelpipe_cache_alloc_align_cache_impl().

dt_cache_arena_init()

int dt_cache_arena_init	(	dt_cache_arena_t *	a,
		size_t	total_size
	)

References dt_cache_arena_t::base, dt_pthread_mutex_init(), FALSE, dt_cache_arena_t::free_runs, dt_cache_arena_t::lock, dt_cache_arena_t::num_pages, dt_cache_arena_t::page_size, dt_cache_arena_t::size, and dt_free_run_t::start.

Referenced by dt_dev_pixelpipe_cache_init().

dt_cache_arena_ptr_in()

gboolean dt_cache_arena_ptr_in	(	const dt_cache_arena_t *	a,
		const void *	ptr
	)

References dt_cache_arena_t::base, FALSE, and dt_cache_arena_t::size.

dt_cache_arena_stats()

void dt_cache_arena_stats	(	dt_cache_arena_t *	a,
		uint32_t *	out_total_free_pages,
		uint32_t *	out_largest_free_run_pages
	)

References dt_pthread_mutex_lock(), dt_pthread_mutex_unlock(), dt_cache_arena_t::free_runs, and dt_cache_arena_t::lock.

Referenced by _arena_alloc_with_defrag(), and _arena_stats_bytes().