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23f6689846
The flag allows to suppress "ngx_slab_alloc() failed: no memory" messages from a slab allocator, e.g., if an LRU expiration is used by a consumer and allocation failures aren't fatal. The flag is now used in the SSL session cache code, and in the limit_req module.
57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) Nginx, Inc.
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*/
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#ifndef _NGX_SLAB_H_INCLUDED_
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#define _NGX_SLAB_H_INCLUDED_
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#include <ngx_config.h>
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#include <ngx_core.h>
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typedef struct ngx_slab_page_s ngx_slab_page_t;
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struct ngx_slab_page_s {
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uintptr_t slab;
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ngx_slab_page_t *next;
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uintptr_t prev;
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};
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typedef struct {
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ngx_shmtx_sh_t lock;
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size_t min_size;
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size_t min_shift;
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ngx_slab_page_t *pages;
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ngx_slab_page_t free;
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u_char *start;
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u_char *end;
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ngx_shmtx_t mutex;
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u_char *log_ctx;
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u_char zero;
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unsigned log_nomem:1;
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void *data;
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void *addr;
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} ngx_slab_pool_t;
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void ngx_slab_init(ngx_slab_pool_t *pool);
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void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size);
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void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size);
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void ngx_slab_free(ngx_slab_pool_t *pool, void *p);
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void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p);
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#endif /* _NGX_SLAB_H_INCLUDED_ */
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