Mercurial > hg > nginx-ranges
diff src/core/ngx_palloc.h @ 0:f0b350454894 NGINX_0_1_0
nginx 0.1.0
*) The first public version.
author | Igor Sysoev <http://sysoev.ru> |
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date | Mon, 04 Oct 2004 00:00:00 +0400 |
parents | |
children | aab2ea7c0458 |
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new file mode 100644 --- /dev/null +++ b/src/core/ngx_palloc.h @@ -0,0 +1,55 @@ + +/* + * 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_page_size - 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_test_null(p, alloc, rc) if ((p = alloc) == NULL) { return rc; } + + +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 { + char *last; + char *end; + ngx_pool_t *next; + ngx_pool_large_t *large; + ngx_log_t *log; +}; + + +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); + + +#endif /* _NGX_PALLOC_H_INCLUDED_ */