Core: slab allocator free pages defragmentation. Large allocations from a slab pool result in free page blocks being fragmented, eventually leading to a situation when no further allocation larger than a page size are possible from the pool. While this isn't a problem for nginx itself, it is known to be bad for various 3rd party modules. Fix is to merge adjacent blocks of free pages in the ngx_slab_free_pages() function. Prodded by Wandenberg Peixoto and Yichun Zhang.

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_MURMURHASH_H_INCLUDED_
#define _NGX_MURMURHASH_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


uint32_t ngx_murmur_hash2(u_char *data, size_t len);


#endif /* _NGX_MURMURHASH_H_INCLUDED_ */