| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef MOD_CACHE_DISK_H |
| #define MOD_CACHE_DISK_H |
| |
| #include "apr_file_io.h" |
| |
| #include "cache_disk_common.h" |
| |
| /* |
| * include for mod_cache_disk: Disk Based HTTP 1.1 Cache. |
| */ |
| |
| typedef struct { |
| apr_pool_t *pool; |
| const char *file; |
| apr_file_t *fd; |
| char *tempfile; |
| apr_file_t *tempfd; |
| } disk_cache_file_t; |
| |
| /* |
| * disk_cache_object_t |
| * Pointed to by cache_object_t::vobj |
| */ |
| typedef struct disk_cache_object { |
| const char *root; /* the location of the cache directory */ |
| apr_size_t root_len; |
| const char *prefix; |
| disk_cache_file_t data; /* data file structure */ |
| disk_cache_file_t hdrs; /* headers file structure */ |
| disk_cache_file_t vary; /* vary file structure */ |
| const char *hashfile; /* Computed hash key for this URI */ |
| const char *name; /* Requested URI without vary bits - suitable for mortals. */ |
| const char *key; /* On-disk prefix; URI with Vary bits (if present) */ |
| apr_off_t file_size; /* File size of the cached data file */ |
| disk_cache_info_t disk_info; /* Header information. */ |
| apr_table_t *headers_in; /* Input headers to save */ |
| apr_table_t *headers_out; /* Output headers to save */ |
| apr_off_t offset; /* Max size to set aside */ |
| apr_time_t timeout; /* Max time to set aside */ |
| unsigned int done:1; /* Is the attempt to cache complete? */ |
| } disk_cache_object_t; |
| |
| |
| /* |
| * mod_cache_disk configuration |
| */ |
| /* TODO: Make defaults OS specific */ |
| #define CACHEFILE_LEN 20 /* must be less than HASH_LEN/2 */ |
| #define DEFAULT_DIRLEVELS 2 |
| #define DEFAULT_DIRLENGTH 2 |
| #define DEFAULT_MIN_FILE_SIZE 1 |
| #define DEFAULT_MAX_FILE_SIZE 1000000 |
| #define DEFAULT_READSIZE 0 |
| #define DEFAULT_READTIME 0 |
| |
| typedef struct { |
| const char* cache_root; |
| apr_size_t cache_root_len; |
| int dirlevels; /* Number of levels of subdirectories */ |
| int dirlength; /* Length of subdirectory names */ |
| } disk_cache_conf; |
| |
| typedef struct { |
| apr_off_t minfs; /* minimum file size for cached files */ |
| apr_off_t maxfs; /* maximum file size for cached files */ |
| apr_off_t readsize; /* maximum data to attempt to cache in one go */ |
| apr_time_t readtime; /* maximum time taken to cache in one go */ |
| unsigned int minfs_set:1; |
| unsigned int maxfs_set:1; |
| unsigned int readsize_set:1; |
| unsigned int readtime_set:1; |
| } disk_cache_dir_conf; |
| |
| #endif /*MOD_CACHE_DISK_H*/ |
| |