|
libnl 1.1
|
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().
{
struct nl_cache_ops *ops;
for (ops = cache_ops; ops; ops = ops->co_next)
if (!strcmp(ops->co_name, name))
return ops;
return NULL;
}
| 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().
{
int i;
struct nl_cache_ops *ops;
for (ops = cache_ops; ops; ops = ops->co_next)
for (i = 0; ops->co_msgtypes[i].mt_id >= 0; i++)
if (ops->co_msgtypes[i].mt_id == msgtype &&
ops->co_protocol == protocol)
return ops;
return NULL;
}
| 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.
{
struct nl_cache_ops *ops;
for (ops = cache_ops; ops; ops = ops->co_next)
cb(ops, arg);
}
| 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().
{
if (!ops->co_name)
return nl_error(EINVAL, "No cache name specified");
if (!ops->co_obj_ops)
return nl_error(EINVAL, "No obj cache ops specified");
if (nl_cache_ops_lookup(ops->co_name))
return nl_error(EEXIST, "Cache operations already exist");
ops->co_next = cache_ops;
cache_ops = ops;
NL_DBG(1, "Registered cache operations %s\n", ops->co_name);
return 0;
}
| 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().
{
struct nl_cache_ops *t, **tp;
for (tp = &cache_ops; (t=*tp) != NULL; tp = &t->co_next)
if (t == ops)
break;
if (!t)
return nl_error(ENOENT, "No such cache operations");
NL_DBG(1, "Unregistered cache operations %s\n", ops->co_name);
*tp = t->co_next;
return 0;
}
| 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().
{
struct nl_cache_ops *ops;
ops = cache_ops_lookup_for_obj(cache->c_ops->co_obj_ops);
if (!ops)
BUG();
else
ops->co_major_cache = cache;
}
| 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.
{
struct nl_cache_ops *ops;
ops = cache_ops_lookup_for_obj(cache->c_ops->co_obj_ops);
if (!ops)
BUG();
else if (ops->co_major_cache == cache)
ops->co_major_cache = NULL;
}
| 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().
{
struct nl_cache_ops *ops;
ops = nl_cache_ops_lookup(name);
if (!ops || !ops->co_major_cache) {
fprintf(stderr, "Application BUG: Your application must "
"call nl_cache_mngt_provide() and\nprovide a valid "
"%s cache to be used for internal lookups.\nSee the "
" API documentation for more details.\n", name);
return NULL;
}
return ops->co_major_cache;
}
1.7.3