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ngx_open_file_cache.h
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ngx_open_file_cache.h
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/*
* Copyright (C) Igor Sysoev
* Copyright (C) Nginx, Inc.
*/
#include <ngx_config.h>
#include <ngx_core.h>
#ifndef _NGX_OPEN_FILE_CACHE_H_INCLUDED_
#define _NGX_OPEN_FILE_CACHE_H_INCLUDED_
#define NGX_OPEN_FILE_DIRECTIO_OFF NGX_MAX_OFF_T_VALUE
typedef struct {
ngx_fd_t fd;
ngx_file_uniq_t uniq;
time_t mtime;
off_t size;
off_t fs_size;
off_t directio;
size_t read_ahead;
ngx_err_t err;
char *failed;
time_t valid;
ngx_uint_t min_uses;
#if (NGX_HAVE_OPENAT)
size_t disable_symlinks_from;
unsigned disable_symlinks:2;
#endif
unsigned test_dir:1;
unsigned test_only:1;
unsigned log:1;
unsigned errors:1;
unsigned events:1;
unsigned is_dir:1;
unsigned is_file:1;
unsigned is_link:1;
unsigned is_exec:1;
unsigned is_directio:1;
} ngx_open_file_info_t;
typedef struct ngx_cached_open_file_s ngx_cached_open_file_t;
struct ngx_cached_open_file_s {
ngx_rbtree_node_t node;
ngx_queue_t queue;
u_char *name;
time_t created;
time_t accessed;
ngx_fd_t fd;
ngx_file_uniq_t uniq;
time_t mtime;
off_t size;
ngx_err_t err;
uint32_t uses;
#if (NGX_HAVE_OPENAT)
size_t disable_symlinks_from;
unsigned disable_symlinks:2;
#endif
unsigned count:24;
unsigned close:1;
unsigned use_event:1;
unsigned is_dir:1;
unsigned is_file:1;
unsigned is_link:1;
unsigned is_exec:1;
unsigned is_directio:1;
ngx_event_t *event;
};
typedef struct {
ngx_rbtree_t rbtree;
ngx_rbtree_node_t sentinel;
ngx_queue_t expire_queue;
ngx_uint_t current;
ngx_uint_t max;
time_t inactive;
} ngx_open_file_cache_t;
typedef struct {
ngx_open_file_cache_t *cache;
ngx_cached_open_file_t *file;
ngx_uint_t min_uses;
ngx_log_t *log;
} ngx_open_file_cache_cleanup_t;
typedef struct {
/* ngx_connection_t stub to allow use c->fd as event ident */
void *data;
ngx_event_t *read;
ngx_event_t *write;
ngx_fd_t fd;
ngx_cached_open_file_t *file;
ngx_open_file_cache_t *cache;
} ngx_open_file_cache_event_t;
ngx_open_file_cache_t *ngx_open_file_cache_init(ngx_pool_t *pool,
ngx_uint_t max, time_t inactive);
ngx_int_t ngx_open_cached_file(ngx_open_file_cache_t *cache, ngx_str_t *name,
ngx_open_file_info_t *of, ngx_pool_t *pool);
#endif /* _NGX_OPEN_FILE_CACHE_H_INCLUDED_ */