Return to ngx_palloc.h CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / nginx / src / core

Annotation of embedaddon/nginx/src/core/ngx_palloc.h, revision 1.1.1.1

1.1       misho       1: 
                      2: /*
                      3:  * Copyright (C) Igor Sysoev
                      4:  * Copyright (C) Nginx, Inc.
                      5:  */
                      6: 
                      7: 
                      8: #ifndef _NGX_PALLOC_H_INCLUDED_
                      9: #define _NGX_PALLOC_H_INCLUDED_
                     10: 
                     11: 
                     12: #include <ngx_config.h>
                     13: #include <ngx_core.h>
                     14: 
                     15: 
                     16: /*
                     17:  * NGX_MAX_ALLOC_FROM_POOL should be (ngx_pagesize - 1), i.e. 4095 on x86.
                     18:  * On Windows NT it decreases a number of locked pages in a kernel.
                     19:  */
                     20: #define NGX_MAX_ALLOC_FROM_POOL  (ngx_pagesize - 1)
                     21: 
                     22: #define NGX_DEFAULT_POOL_SIZE    (16 * 1024)
                     23: 
                     24: #define NGX_POOL_ALIGNMENT       16
                     25: #define NGX_MIN_POOL_SIZE                                                     \
                     26:     ngx_align((sizeof(ngx_pool_t) + 2 * sizeof(ngx_pool_large_t)),            \
                     27:               NGX_POOL_ALIGNMENT)
                     28: 
                     29: 
                     30: typedef void (*ngx_pool_cleanup_pt)(void *data);
                     31: 
                     32: typedef struct ngx_pool_cleanup_s  ngx_pool_cleanup_t;
                     33: 
                     34: struct ngx_pool_cleanup_s {
                     35:     ngx_pool_cleanup_pt   handler;
                     36:     void                 *data;
                     37:     ngx_pool_cleanup_t   *next;
                     38: };
                     39: 
                     40: 
                     41: typedef struct ngx_pool_large_s  ngx_pool_large_t;
                     42: 
                     43: struct ngx_pool_large_s {
                     44:     ngx_pool_large_t     *next;
                     45:     void                 *alloc;
                     46: };
                     47: 
                     48: 
                     49: typedef struct {
                     50:     u_char               *last;
                     51:     u_char               *end;
                     52:     ngx_pool_t           *next;
                     53:     ngx_uint_t            failed;
                     54: } ngx_pool_data_t;
                     55: 
                     56: 
                     57: struct ngx_pool_s {
                     58:     ngx_pool_data_t       d;
                     59:     size_t                max;
                     60:     ngx_pool_t           *current;
                     61:     ngx_chain_t          *chain;
                     62:     ngx_pool_large_t     *large;
                     63:     ngx_pool_cleanup_t   *cleanup;
                     64:     ngx_log_t            *log;
                     65: };
                     66: 
                     67: 
                     68: typedef struct {
                     69:     ngx_fd_t              fd;
                     70:     u_char               *name;
                     71:     ngx_log_t            *log;
                     72: } ngx_pool_cleanup_file_t;
                     73: 
                     74: 
                     75: void *ngx_alloc(size_t size, ngx_log_t *log);
                     76: void *ngx_calloc(size_t size, ngx_log_t *log);
                     77: 
                     78: ngx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log);
                     79: void ngx_destroy_pool(ngx_pool_t *pool);
                     80: void ngx_reset_pool(ngx_pool_t *pool);
                     81: 
                     82: void *ngx_palloc(ngx_pool_t *pool, size_t size);
                     83: void *ngx_pnalloc(ngx_pool_t *pool, size_t size);
                     84: void *ngx_pcalloc(ngx_pool_t *pool, size_t size);
                     85: void *ngx_pmemalign(ngx_pool_t *pool, size_t size, size_t alignment);
                     86: ngx_int_t ngx_pfree(ngx_pool_t *pool, void *p);
                     87: 
                     88: 
                     89: ngx_pool_cleanup_t *ngx_pool_cleanup_add(ngx_pool_t *p, size_t size);
                     90: void ngx_pool_run_cleanup_file(ngx_pool_t *p, ngx_fd_t fd);
                     91: void ngx_pool_cleanup_file(void *data);
                     92: void ngx_pool_delete_file(void *data);
                     93: 
                     94: 
                     95: #endif /* _NGX_PALLOC_H_INCLUDED_ */