Mercurial > hg > nginx-vendor-0-6
view src/core/ngx_palloc.h @ 390:d4f0d6c19c8d NGINX_0_6_39
nginx 0.6.39
*) Security: a segmentation fault might occur in worker process while
specially crafted request handling.
Thanks to Chris Ries.
*) Bugfix: a segmentation fault might occur in worker process, if
error_log was set to info or debug level.
Thanks to Sergey Bochenkov.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Mon, 14 Sep 2009 00:00:00 +0400 |
parents | cba14c1e2a4b |
children |
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/* * Copyright (C) Igor Sysoev */ #ifndef _NGX_PALLOC_H_INCLUDED_ #define _NGX_PALLOC_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> /* * NGX_MAX_ALLOC_FROM_POOL should be (ngx_pagesize - 1), i.e. 4095 on x86. * On FreeBSD 5.x it allows to use the zero copy sending. * On Windows NT it decreases a number of locked pages in a kernel. */ #define NGX_MAX_ALLOC_FROM_POOL (ngx_pagesize - 1) #define NGX_DEFAULT_POOL_SIZE (16 * 1024) #define NGX_MIN_POOL_SIZE \ (sizeof(ngx_pool_t) + 2 * sizeof(ngx_pool_large_t)) typedef void (*ngx_pool_cleanup_pt)(void *data); typedef struct ngx_pool_cleanup_s ngx_pool_cleanup_t; struct ngx_pool_cleanup_s { ngx_pool_cleanup_pt handler; void *data; ngx_pool_cleanup_t *next; }; typedef struct ngx_pool_large_s ngx_pool_large_t; struct ngx_pool_large_s { ngx_pool_large_t *next; void *alloc; }; struct ngx_pool_s { u_char *last; u_char *end; ngx_pool_t *current; ngx_chain_t *chain; ngx_pool_t *next; ngx_pool_large_t *large; ngx_pool_cleanup_t *cleanup; ngx_log_t *log; }; typedef struct { ngx_fd_t fd; u_char *name; ngx_log_t *log; } ngx_pool_cleanup_file_t; void *ngx_alloc(size_t size, ngx_log_t *log); void *ngx_calloc(size_t size, ngx_log_t *log); ngx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log); void ngx_destroy_pool(ngx_pool_t *pool); void *ngx_palloc(ngx_pool_t *pool, size_t size); void *ngx_pcalloc(ngx_pool_t *pool, size_t size); ngx_int_t ngx_pfree(ngx_pool_t *pool, void *p); ngx_pool_cleanup_t *ngx_pool_cleanup_add(ngx_pool_t *p, size_t size); void ngx_pool_cleanup_file(void *data); void ngx_pool_delete_file(void *data); #endif /* _NGX_PALLOC_H_INCLUDED_ */