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


#ifndef _NGX_SHMEM_H_INCLUDED_
#define _NGX_SHMEM_H_INCLUDED_


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


typedef struct {
    u_char      *addr;
    size_t       size;
    ngx_str_t    name;
    HANDLE       handle;
    ngx_log_t   *log;
    ngx_uint_t   exists;   /* unsigned  exists:1;  */
} ngx_shm_t;


ngx_int_t ngx_shm_alloc(ngx_shm_t *shm);
ngx_int_t ngx_shm_remap(ngx_shm_t *shm, u_char *addr);
void ngx_shm_free(ngx_shm_t *shm);

extern ngx_uint_t  ngx_allocation_granularity;


#endif /* _NGX_SHMEM_H_INCLUDED_ */