Caching


Modules

 Cache
 Manager
 Helps keeping caches up to date.

Function Documentation

struct nl_cache_ops* nl_cache_ops_lookup ( const char *  name  )  [read]

Parameters:
name name of the cache type
Returns:
The cache operations or NULL if no operations have been registered under the specified name.

Definition at line 36 of file cache_mngt.c.

References nl_cache_ops::co_name, and nl_cache_ops::co_next.

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* nl_cache_ops_associate ( int  protocol,
int  msgtype 
) [read]

Parameters:
protocol netlink protocol
msgtype netlink message type
Associates the specified netlink message type with a registered set of cache operations.

Returns:
The cache operations or NULL if no association could be made.

Definition at line 58 of file cache_mngt.c.

References nl_cache_ops::co_msgtypes, nl_cache_ops::co_next, nl_cache_ops::co_protocol, and nl_msgtype::mt_id.

Referenced by nl_msg_dump().

struct nl_msgtype* nl_msgtype_lookup ( struct nl_cache_ops ops,
int  msgtype 
) [read]

Parameters:
ops cache operations
msgtype netlink message type
Searches for a matching message type association ing the specified cache operations.

Returns:
A message type association or NULL.

Definition at line 82 of file cache_mngt.c.

References nl_cache_ops::co_msgtypes, and nl_msgtype::mt_id.

void nl_cache_ops_foreach ( void(*)(struct nl_cache_ops *, void *)  cb,
void *  arg 
)

Parameters:
cb Callback function to be called
arg User specific argument.

Definition at line 110 of file cache_mngt.c.

References nl_cache_ops::co_next.

int nl_cache_mngt_register ( struct nl_cache_ops ops  ) 

Parameters:
ops cache operations
Called by users of caches to announce the avaibility of a certain cache type.

Returns:
0 on success or a negative error code.

Definition at line 127 of file cache_mngt.c.

References nl_cache_ops::co_name, nl_cache_ops::co_next, nl_cache_ops::co_obj_ops, and nl_cache_ops_lookup().

Referenced by genl_register().

int nl_cache_mngt_unregister ( struct nl_cache_ops ops  ) 

Parameters:
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()

Returns:
0 on success or a negative error code

Definition at line 157 of file cache_mngt.c.

References nl_cache_ops::co_name, and nl_cache_ops::co_next.

Referenced by genl_unregister().

void nl_cache_mngt_provide ( struct nl_cache *  cache  ) 

Parameters:
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.

References nl_cache_ops::co_major_cache.

Referenced by nl_cache_mngr_add().

void nl_cache_mngt_unprovide ( struct nl_cache *  cache  ) 

Parameters:
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.

References nl_cache_ops::co_major_cache.

struct nl_cache* nl_cache_mngt_require ( const char *  name  )  [read]

Parameters:
name name of the required object type
Trys to find a cache of the specified type for global use.

Returns:
A cache provided by another subsystem of the specified type marked to be available.

Definition at line 229 of file cache_mngt.c.

References nl_cache_ops::co_major_cache, and nl_cache_ops_lookup().


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