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/*
* Copyright (C) Igor Sysoev
*/
#ifndef _NGX_FILE_H_INCLUDED_
#define _NGX_FILE_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
typedef struct ngx_path_s ngx_path_t;
#include <ngx_garbage_collector.h>
struct ngx_file_s {
ngx_fd_t fd;
ngx_str_t name;
ngx_file_info_t info;
off_t offset;
off_t sys_offset;
ngx_log_t *log;
ngx_uint_t valid_info; /* unsigned valid_info:1; */
};
#define NGX_MAX_PATH_LEVEL 3
struct ngx_path_s {
ngx_str_t name;
size_t len;
size_t level[3];
ngx_gc_handler_pt cleaner;
u_char *conf_file;
ngx_uint_t line;
};
typedef struct {
ngx_file_t file;
off_t offset;
ngx_path_t *path;
ngx_pool_t *pool;
char *warn;
ngx_uint_t access;
unsigned log_level:8;
unsigned persistent:1;
unsigned clean:1;
} ngx_temp_file_t;
typedef struct {
ngx_uint_t access;
time_t time;
ngx_fd_t fd;
unsigned create_path:1;
unsigned delete_file:1;
ngx_log_t *log;
} ngx_ext_rename_file_t;
typedef struct ngx_tree_ctx_s ngx_tree_ctx_t;
typedef ngx_int_t (*ngx_tree_init_handler_pt) (void *ctx, void *prev);
typedef ngx_int_t (*ngx_tree_handler_pt) (ngx_tree_ctx_t *ctx, ngx_str_t *name);
struct ngx_tree_ctx_s {
off_t size;
ngx_uint_t access;
time_t mtime;
ngx_tree_init_handler_pt init_handler;
ngx_tree_handler_pt file_handler;
ngx_tree_handler_pt pre_tree_handler;
ngx_tree_handler_pt post_tree_handler;
ngx_tree_handler_pt spec_handler;
void *data;
size_t alloc;
ngx_log_t *log;
};
ssize_t ngx_write_chain_to_temp_file(ngx_temp_file_t *tf, ngx_chain_t *chain);
ngx_int_t ngx_create_temp_file(ngx_file_t *file, ngx_path_t *path,
ngx_pool_t *pool, ngx_uint_t persistent, ngx_uint_t clean,
ngx_uint_t access);
void ngx_create_hashed_filename(ngx_path_t *path, u_char *file, size_t len);
ngx_int_t ngx_create_path(ngx_file_t *file, ngx_path_t *path);
ngx_err_t ngx_create_full_path(u_char *dir, ngx_uint_t access);
ngx_int_t ngx_add_path(ngx_conf_t *cf, ngx_path_t **slot);
ngx_int_t ngx_create_pathes(ngx_cycle_t *cycle, ngx_uid_t user);
ngx_int_t ngx_ext_rename_file(ngx_str_t *src, ngx_str_t *to,
ngx_ext_rename_file_t *ext);
ngx_int_t ngx_walk_tree(ngx_tree_ctx_t *ctx, ngx_str_t *tree);
void ngx_init_temp_number(void);
ngx_atomic_uint_t ngx_next_temp_number(ngx_uint_t collision);
char *ngx_conf_set_path_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
char *ngx_conf_set_access_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
#define ngx_conf_merge_path_value(curr, prev, path, l1, l2, l3, clean, cf) \
if (curr == NULL) { \
if (prev == NULL) { \
curr = ngx_palloc(cf->pool, sizeof(ngx_path_t)); \
if (curr == NULL) { \
return NGX_CONF_ERROR; \
} \
\
curr->name.len = sizeof(path) - 1; \
curr->name.data = (u_char *) path; \
\
if (ngx_conf_full_name(cf->cycle, &curr->name, 0) == NGX_ERROR) { \
return NGX_CONF_ERROR; \
} \
\
curr->level[0] = l1; \
curr->level[1] = l2; \
curr->level[2] = l3; \
curr->len = l1 + l2 + l3 + (l1 ? 1:0) + (l2 ? 1:0) + (l3 ? 1:0); \
curr->cleaner = clean; \
curr->conf_file = NULL; \
\
if (ngx_add_path(cf, &curr) == NGX_ERROR) { \
return NGX_CONF_ERROR; \
} \
\
} else { \
curr = prev; \
} \
}
#endif /* _NGX_FILE_H_INCLUDED_ */
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