jemalloc.c File Reference

#include "dsodefs.h"
#include <sys/types.h>
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/cdefs.h>
#include <sys/mman.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/sysctl.h>
#include "jemtree.h"
#include <sys/uio.h>
#include <sched.h>
#include <stdbool.h>
#include <stdint.h>
#include <strings.h>
#include <unistd.h>
#include <assert.h>

Defines
#define	MALLOC_PRODUCTION   1
#define	MALLOC_DSS
#define	__DECONST(type, var)   ((type)(uintptr_t)(const void *)(var))
#define	MADV_FREE   MADV_DONTNEED
#define	SIZE_T_MAX   SIZE_MAX
#define	__DECONST(type, var)   ((type)(uintptr_t)(const void *)(var))
#define	NDEBUG
#define	STRERROR_BUF   64
#define	QUANTUM_2POW_MIN   4
#define	SIZEOF_PTR_2POW   2
#define	SIZEOF_PTR   (1U << SIZEOF_PTR_2POW)
#define	SIZEOF_INT_2POW   2
#define	NO_TLS
#define	CHUNK_2POW_DEFAULT   20
#define	DIRTY_MAX_DEFAULT   (1U << 9)
#define	CACHELINE_2POW   6
#define	CACHELINE   ((size_t)(1U << CACHELINE_2POW))
#define	TINY_MIN_2POW   1
#define	SMALL_MAX_2POW_DEFAULT   9
#define	SMALL_MAX_DEFAULT   (1U << SMALL_MAX_2POW_DEFAULT)
#define	RUN_BFP   12
#define	RUN_MAX_OVRHD   0x0000003dU
#define	RUN_MAX_OVRHD_RELAX   0x00001800U
#define	RUN_MAX_SMALL_2POW   15
#define	RUN_MAX_SMALL   (1U << RUN_MAX_SMALL_2POW)
#define	CPU_SPINWAIT
#define	SPIN_LIMIT_2POW   11
#define	BLOCK_COST_2POW   4
#define	CHUNK_MAP_UNTOUCHED   0x80U
#define	CHUNK_MAP_DIRTY   0x40U
#define	CHUNK_MAP_LARGE   0x20U
#define	CHUNK_MAP_POS_MASK   0x1fU
#define	UTRACE(a, b, c)
#define	malloc_spin_init   malloc_mutex_init
#define	malloc_spin_lock   malloc_mutex_lock
#define	malloc_spin_unlock   malloc_mutex_unlock
#define	CHUNK_ADDR2BASE(a)   ((void *)((uintptr_t)(a) & ~chunksize_mask))
#define	CHUNK_ADDR2OFFSET(a)   ((size_t)((uintptr_t)(a) & chunksize_mask))
#define	CHUNK_CEILING(s)   (((s) + chunksize_mask) & ~chunksize_mask)
#define	CACHELINE_CEILING(s)   (((s) + (CACHELINE - 1)) & ~(CACHELINE - 1))
#define	QUANTUM_CEILING(a)   (((a) + quantum_mask) & ~quantum_mask)
#define	PAGE_CEILING(s)   (((s) + pagesize_mask) & ~pagesize_mask)
#define	_write   write
#define	_malloc_message   malloc_message
#define	UMAX2S_BUFSIZE   21
#define	SIZE_INV_SHIFT   21
#define	SIZE_INV(s)   (((1U << SIZE_INV_SHIFT) / (s << QUANTUM_2POW_MIN)) + 1)
Typedefs
typedef malloc_spinlock_t	malloc_mutex_t
typedef struct extent_node_s	extent_node_t
typedef struct extent_tree_szad_s	extent_tree_szad_t
typedef struct extent_tree_ad_s	extent_tree_ad_t
typedef struct arena_s	arena_t
typedef struct arena_bin_s	arena_bin_t
typedef uint8_t	arena_chunk_map_t
typedef struct arena_chunk_s	arena_chunk_t
typedef struct arena_chunk_tree_s	arena_chunk_tree_t
typedef struct arena_run_s	arena_run_t
typedef struct arena_run_tree_s	arena_run_tree_t
Functions
DSOEXPORT void *	memalign (size_t alignment, size_t size)
DSOEXPORT size_t	malloc_usable_size (const void *ptr)
DSOEXPORT void *	calloc (size_t num, size_t size)
DSOEXPORT void *	realloc (void *ptr, size_t size)
DSOEXPORT void *	valloc (size_t size)
void	_malloc_postfork (void)
void	_malloc_prefork (void)
	RB_HEAD (extent_tree_szad_s, extent_node_s)
	RB_HEAD (extent_tree_ad_s, extent_node_s)
	RB_HEAD (arena_chunk_tree_s, arena_chunk_s)
	RB_HEAD (arena_run_tree_s, arena_run_s)
	RB_GENERATE_STATIC (extent_tree_szad_s, extent_node_s, link_szad, extent_szad_comp)
DSOEXPORT void *	malloc (size_t size)
DSOEXPORT int	posix_memalign (void **memptr, size_t alignment, size_t size)
DSOEXPORT void	free (void *ptr)
Variables
const char *	_malloc_options
void(*	_malloc_message )(const char *p1, const char *p2, const char *p3, const char *p4) = wrtmessage

---

Define Documentation

#define __DECONST	(		type,
			var
	)			((type)(uintptr_t)(const void *)(var))

#define __DECONST	(		type,
			var
	)			((type)(uintptr_t)(const void *)(var))

#define _malloc_message   malloc_message

Referenced by calloc(), malloc(), posix_memalign(), and realloc().

#define _write   write

#define BLOCK_COST_2POW   4

#define CACHELINE   ((size_t)(1U << CACHELINE_2POW))

#define CACHELINE_2POW   6

#define CACHELINE_CEILING

(

s

)

(((s) + (CACHELINE - 1)) & ~(CACHELINE - 1))

#define CHUNK_2POW_DEFAULT   20

#define CHUNK_ADDR2BASE

(

a

)

((void *)((uintptr_t)(a) & ~chunksize_mask))

#define CHUNK_ADDR2OFFSET

(

a

)

((size_t)((uintptr_t)(a) & chunksize_mask))

#define CHUNK_CEILING

(

s

)

(((s) + chunksize_mask) & ~chunksize_mask)

#define CHUNK_MAP_DIRTY   0x40U

#define CHUNK_MAP_LARGE   0x20U

#define CHUNK_MAP_POS_MASK   0x1fU

#define CHUNK_MAP_UNTOUCHED   0x80U

#define CPU_SPINWAIT

#define DIRTY_MAX_DEFAULT   (1U << 9)

#define MADV_FREE   MADV_DONTNEED

#define MALLOC_DSS

#define MALLOC_PRODUCTION   1

#define malloc_spin_init   malloc_mutex_init

#define malloc_spin_lock   malloc_mutex_lock

Referenced by _malloc_postfork(), and _malloc_prefork().

#define malloc_spin_unlock   malloc_mutex_unlock

Referenced by _malloc_postfork(), and _malloc_prefork().

#define NDEBUG

#define NO_TLS

#define PAGE_CEILING

(

s

)

(((s) + pagesize_mask) & ~pagesize_mask)

#define QUANTUM_2POW_MIN   4

#define QUANTUM_CEILING

(

a

)

(((a) + quantum_mask) & ~quantum_mask)

#define RUN_BFP   12

#define RUN_MAX_OVRHD   0x0000003dU

#define RUN_MAX_OVRHD_RELAX   0x00001800U

#define RUN_MAX_SMALL   (1U << RUN_MAX_SMALL_2POW)

#define RUN_MAX_SMALL_2POW   15

#define SIZE_INV

(

s

)

(((1U << SIZE_INV_SHIFT) / (s << QUANTUM_2POW_MIN)) + 1)

#define SIZE_INV_SHIFT   21

#define SIZE_T_MAX   SIZE_MAX

Referenced by calloc().

#define SIZEOF_INT_2POW   2

#define SIZEOF_PTR   (1U << SIZEOF_PTR_2POW)

#define SIZEOF_PTR_2POW   2

#define SMALL_MAX_2POW_DEFAULT   9

#define SMALL_MAX_DEFAULT   (1U << SMALL_MAX_2POW_DEFAULT)

#define SPIN_LIMIT_2POW   11

#define STRERROR_BUF   64

#define TINY_MIN_2POW   1

#define UMAX2S_BUFSIZE   21

#define UTRACE	(		a,
			b,
			c
	)

Referenced by calloc(), free(), malloc(), posix_memalign(), and realloc().

---

Typedef Documentation

typedef struct arena_bin_s arena_bin_t

typedef uint8_t arena_chunk_map_t

typedef struct arena_chunk_s arena_chunk_t

typedef struct arena_chunk_tree_s arena_chunk_tree_t

typedef struct arena_run_s arena_run_t

typedef struct arena_run_tree_s arena_run_tree_t

typedef struct arena_s arena_t

typedef struct extent_node_s extent_node_t

typedef struct extent_tree_ad_s extent_tree_ad_t

typedef struct extent_tree_szad_s extent_tree_szad_t

typedef malloc_spinlock_t malloc_mutex_t

---

Function Documentation

void _malloc_postfork

(

void

)

References malloc_spin_lock, and malloc_spin_unlock.

void _malloc_prefork

(

void

)

References malloc_spin_lock, and malloc_spin_unlock.

DSOEXPORT void * calloc	(	size_t	num,
		size_t	size
	)

References _malloc_message, errno, SIZE_T_MAX, and UTRACE.

DSOEXPORT void free

(

void *

ptr

)

References UTRACE.

Referenced by argz_create_sep(), gnash::DiskStream::close(), gnash::fileio_scandir(), gnash::SSLServer::loadDhParams(), gnash::DiskStream::loadToMem(), NPN_MemFree(), slist_unbox(), gnash::SSHClient::sshConnect(), gnash::SSHClient::sshShutdown(), gnash::typeName(), and gnash::FBGui::~FBGui().

DSOEXPORT void* malloc

(

size_t

size

)

References _malloc_message, errno, and UTRACE.

Referenced by argz_create_sep(), gnash::AOS4Gui::createWindow(), gnash::FBGui::init(), gnash::DiskStream::loadToMem(), lt__malloc(), NPN_MemAlloc(), gnash::AOS4Gui::ReadPrefs(), and slist_box().

DSOEXPORT size_t malloc_usable_size

(

const void *

ptr

)

DSOEXPORT void * memalign	(	size_t	alignment,
		size_t	size
	)

References posix_memalign().

Referenced by valloc().

DSOEXPORT int posix_memalign	(	void **	memptr,
		size_t	alignment,
		size_t	size
	)

References _malloc_message, and UTRACE.

Referenced by memalign().

RB_GENERATE_STATIC	(	extent_tree_szad_s	,
		extent_node_s	,
		link_szad	,
		extent_szad_comp
	)

RB_HEAD	(	extent_tree_szad_s	,
		extent_node_s
	)

RB_HEAD	(	extent_tree_ad_s	,
		extent_node_s
	)

RB_HEAD	(	arena_chunk_tree_s	,
		arena_chunk_s
	)

RB_HEAD	(	arena_run_tree_s	,
		arena_run_s
	)

DSOEXPORT void * realloc	(	void *	ptr,
		size_t	size
	)

References _malloc_message, errno, and UTRACE.

Referenced by argz_append(), argz_insert(), gnash::Renderer_agg_base::initTestBuffer(), lt__realloc(), and gnash::RiscosAggGlue::setRenderHandlerSize().

DSOEXPORT void * valloc

(

size_t

size

)

References memalign().

---

Variable Documentation

void(* _malloc_message)(const char *p1, const char *p2, const char *p3, const char *p4) = wrtmessage

const char* _malloc_options