nginx/src/core/ngx_file.c

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


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


static ngx_int_t ngx_test_full_name(ngx_str_t *name);


static ngx_atomic_t   temp_number = …;
ngx_atomic_t         *ngx_temp_number = …;
ngx_atomic_int_t      ngx_random_number = …;


ngx_int_t
ngx_get_full_name(ngx_pool_t *pool, ngx_str_t *prefix, ngx_str_t *name)
{ … }


static ngx_int_t
ngx_test_full_name(ngx_str_t *name)
{ … }


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_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_merge_path_value(ngx_conf_t *cf, ngx_path_t **path, ngx_path_t *prev,
    ngx_path_init_t *init)
{ … }


char *
ngx_conf_set_access_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{ … }


ngx_int_t
ngx_add_path(ngx_conf_t *cf, ngx_path_t **slot)
{ … }


ngx_int_t
ngx_create_paths(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_copy_file(u_char *from, u_char *to, ngx_copy_file_t *cf)
{ … }


/*
 * ctx->init_handler() - see ctx->alloc
 * ctx->file_handler() - file handler
 * ctx->pre_tree_handler() - handler is called before entering directory
 * ctx->post_tree_handler() - handler is called after leaving directory
 * ctx->spec_handler() - special (socket, FIFO, etc.) file handler
 *
 * ctx->data - some data structure, it may be the same on all levels, or
 *     reallocated if ctx->alloc is nonzero
 *
 * ctx->alloc - a size of data structure that is allocated at every level
 *     and is initialized by ctx->init_handler()
 *
 * ctx->log - a log
 *
 * on fatal (memory) error handler must return NGX_ABORT to stop walking tree
 */

ngx_int_t
ngx_walk_tree(ngx_tree_ctx_t *ctx, ngx_str_t *tree)
{ … }