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#ifndef _NGX_ALLOC_H_INCLUDED_
#define _NGX_ALLOC_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 zero copy send.
* On Windows NT it decreases a number of locked pages in a kernel.
*/
#define NGX_MAX_ALLOC_FROM_POOL 4095
#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;
};
typedef struct ngx_pool_s ngx_pool_t;
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);
void ngx_pfree(ngx_pool_t *pool, void *p);
#define ngx_free free
#endif /* _NGX_ALLOC_H_INCLUDED_ */
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