Modules | |
Cache | |
Manager | |
Helps keeping caches up to date. | |
Cache Operations Sets | |
| |
struct nl_cache_ops * | nl_cache_ops_lookup (const char *name) |
Lookup the set cache operations of a certain cache type. | |
struct nl_cache_ops * | nl_cache_ops_associate (int protocol, int msgtype) |
Associate a message type to a set of cache operations. | |
struct nl_msgtype * | nl_msgtype_lookup (struct nl_cache_ops *ops, int msgtype) |
Lookup message type cache association. | |
void | nl_cache_ops_foreach (void(*cb)(struct nl_cache_ops *, void *), void *arg) |
Call a function for each registered cache operation. | |
int | nl_cache_mngt_register (struct nl_cache_ops *ops) |
Register a set of cache operations. | |
int | nl_cache_mngt_unregister (struct nl_cache_ops *ops) |
Unregister a set of cache operations. | |
Global Cache Provisioning/Requiring | |
| |
void | nl_cache_mngt_provide (struct nl_cache *cache) |
Provide a cache for global use. | |
void | nl_cache_mngt_unprovide (struct nl_cache *cache) |
Unprovide a cache for global use. | |
struct nl_cache * | nl_cache_mngt_require (const char *name) |
Demand the use of a global cache. |
struct nl_cache_ops* nl_cache_ops_lookup | ( | const char * | name | ) | [read] |
name | name of the cache type |
Definition at line 36 of file cache_mngt.c.
Referenced by nl_cache_alloc_name(), nl_cache_mngr_add(), nl_cache_mngt_register(), nl_cache_mngt_require(), and nl_object_alloc_name().
00037 { 00038 struct nl_cache_ops *ops; 00039 00040 for (ops = cache_ops; ops; ops = ops->co_next) 00041 if (!strcmp(ops->co_name, name)) 00042 return ops; 00043 00044 return NULL; 00045 }
struct nl_cache_ops* nl_cache_ops_associate | ( | int | protocol, | |
int | msgtype | |||
) | [read] |
protocol | netlink protocol | |
msgtype | netlink message type |
Associates the specified netlink message type with a registered set of cache operations.
Definition at line 58 of file cache_mngt.c.
References nl_msgtype::mt_id.
Referenced by nl_msg_dump().
00059 { 00060 int i; 00061 struct nl_cache_ops *ops; 00062 00063 for (ops = cache_ops; ops; ops = ops->co_next) 00064 for (i = 0; ops->co_msgtypes[i].mt_id >= 0; i++) 00065 if (ops->co_msgtypes[i].mt_id == msgtype && 00066 ops->co_protocol == protocol) 00067 return ops; 00068 00069 return NULL; 00070 }
struct nl_msgtype* nl_msgtype_lookup | ( | struct nl_cache_ops * | ops, | |
int | msgtype | |||
) | [read] |
ops | cache operations | |
msgtype | netlink message type |
Searches for a matching message type association ing the specified cache operations.
Definition at line 82 of file cache_mngt.c.
References nl_msgtype::mt_id.
void nl_cache_ops_foreach | ( | void(*)(struct nl_cache_ops *, void *) | cb, | |
void * | arg | |||
) |
cb | Callback function to be called | |
arg | User specific argument. |
Definition at line 110 of file cache_mngt.c.
00111 { 00112 struct nl_cache_ops *ops; 00113 00114 for (ops = cache_ops; ops; ops = ops->co_next) 00115 cb(ops, arg); 00116 }
int nl_cache_mngt_register | ( | struct nl_cache_ops * | ops | ) |
ops | cache operations |
Called by users of caches to announce the avaibility of a certain cache type.
Definition at line 127 of file cache_mngt.c.
References nl_cache_ops_lookup().
Referenced by genl_register().
00128 { 00129 if (!ops->co_name) 00130 return nl_error(EINVAL, "No cache name specified"); 00131 00132 if (!ops->co_obj_ops) 00133 return nl_error(EINVAL, "No obj cache ops specified"); 00134 00135 if (nl_cache_ops_lookup(ops->co_name)) 00136 return nl_error(EEXIST, "Cache operations already exist"); 00137 00138 ops->co_next = cache_ops; 00139 cache_ops = ops; 00140 00141 NL_DBG(1, "Registered cache operations %s\n", ops->co_name); 00142 00143 return 0; 00144 }
int nl_cache_mngt_unregister | ( | struct nl_cache_ops * | ops | ) |
ops | cache operations |
Called by users of caches to announce a set of cache operations is no longer available. The specified cache operations must have been registered previously using nl_cache_mngt_register()
Definition at line 157 of file cache_mngt.c.
Referenced by genl_unregister().
00158 { 00159 struct nl_cache_ops *t, **tp; 00160 00161 for (tp = &cache_ops; (t=*tp) != NULL; tp = &t->co_next) 00162 if (t == ops) 00163 break; 00164 00165 if (!t) 00166 return nl_error(ENOENT, "No such cache operations"); 00167 00168 NL_DBG(1, "Unregistered cache operations %s\n", ops->co_name); 00169 00170 *tp = t->co_next; 00171 return 0; 00172 }
void nl_cache_mngt_provide | ( | struct nl_cache * | cache | ) |
cache | cache to provide |
Offers the specified cache to be used by other modules. Only one cache per type may be shared at a time, a previsouly provided caches will be overwritten.
Definition at line 189 of file cache_mngt.c.
Referenced by nl_cache_mngr_add().
00190 { 00191 struct nl_cache_ops *ops; 00192 00193 ops = cache_ops_lookup_for_obj(cache->c_ops->co_obj_ops); 00194 if (!ops) 00195 BUG(); 00196 else 00197 ops->co_major_cache = cache; 00198 }
void nl_cache_mngt_unprovide | ( | struct nl_cache * | cache | ) |
cache | cache to unprovide |
Cancels the offer to use a cache globally. The cache will no longer be returned via lookups but may still be in use.
Definition at line 208 of file cache_mngt.c.
00209 { 00210 struct nl_cache_ops *ops; 00211 00212 ops = cache_ops_lookup_for_obj(cache->c_ops->co_obj_ops); 00213 if (!ops) 00214 BUG(); 00215 else if (ops->co_major_cache == cache) 00216 ops->co_major_cache = NULL; 00217 }
struct nl_cache* nl_cache_mngt_require | ( | const char * | name | ) | [read] |
name | name of the required object type |
Trys to find a cache of the specified type for global use.
Definition at line 229 of file cache_mngt.c.
References nl_cache_ops_lookup().
00230 { 00231 struct nl_cache_ops *ops; 00232 00233 ops = nl_cache_ops_lookup(name); 00234 if (!ops || !ops->co_major_cache) { 00235 fprintf(stderr, "Application BUG: Your application must " 00236 "call nl_cache_mngt_provide() and\nprovide a valid " 00237 "%s cache to be used for internal lookups.\nSee the " 00238 " API documentation for more details.\n", name); 00239 00240 return NULL; 00241 } 00242 00243 return ops->co_major_cache; 00244 }