nginx/src/core/ngx_slab.c

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */

#include <ngx_config.h>
#include <ngx_core.h>


#define NGX_SLAB_PAGE_MASK …
#define NGX_SLAB_PAGE …
#define NGX_SLAB_BIG …
#define NGX_SLAB_EXACT …
#define NGX_SLAB_SMALL …

#if (NGX_PTR_SIZE == 4)

#define NGX_SLAB_PAGE_FREE …
#define NGX_SLAB_PAGE_BUSY …
#define NGX_SLAB_PAGE_START …

#define NGX_SLAB_SHIFT_MASK …
#define NGX_SLAB_MAP_MASK …
#define NGX_SLAB_MAP_SHIFT …

#define NGX_SLAB_BUSY …

#else /* (NGX_PTR_SIZE == 8) */

#define NGX_SLAB_PAGE_FREE …
#define NGX_SLAB_PAGE_BUSY …
#define NGX_SLAB_PAGE_START …

#define NGX_SLAB_SHIFT_MASK …
#define NGX_SLAB_MAP_MASK …
#define NGX_SLAB_MAP_SHIFT …

#define NGX_SLAB_BUSY …

#endif


#define ngx_slab_slots(pool) …

#define ngx_slab_page_type(page) …

#define ngx_slab_page_prev(page) …

#define ngx_slab_page_addr(pool, page) …


#if (NGX_DEBUG_MALLOC)

#define ngx_slab_junk …

#elif (NGX_HAVE_DEBUG_MALLOC)

#define ngx_slab_junk …

#else

#define ngx_slab_junk(p, size) …

#endif

static ngx_slab_page_t *ngx_slab_alloc_pages(ngx_slab_pool_t *pool,
    ngx_uint_t pages);
static void ngx_slab_free_pages(ngx_slab_pool_t *pool, ngx_slab_page_t *page,
    ngx_uint_t pages);
static void ngx_slab_error(ngx_slab_pool_t *pool, ngx_uint_t level,
    char *text);


static ngx_uint_t  ngx_slab_max_size;
static ngx_uint_t  ngx_slab_exact_size;
static ngx_uint_t  ngx_slab_exact_shift;


void
ngx_slab_sizes_init(void)
{ … }


void
ngx_slab_init(ngx_slab_pool_t *pool)
{ … }


void *
ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size)
{ … }


void *
ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size)
{ … }


void *
ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size)
{ … }


void *
ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size)
{ … }


void
ngx_slab_free(ngx_slab_pool_t *pool, void *p)
{ … }


void
ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p)
{ … }


static ngx_slab_page_t *
ngx_slab_alloc_pages(ngx_slab_pool_t *pool, ngx_uint_t pages)
{ … }


static void
ngx_slab_free_pages(ngx_slab_pool_t *pool, ngx_slab_page_t *page,
    ngx_uint_t pages)
{ … }


static void
ngx_slab_error(ngx_slab_pool_t *pool, ngx_uint_t level, char *text)
{ … }