stash_cache
[Net-SNMP Agent handler and extensibility API]

Automatically caches data for certain handlers. [詳細]


関数
netsnmp_stash_cache_info *	netsnmp_get_new_stash_cache (void)
netsnmp_mib_handler *	netsnmp_get_timed_bare_stash_cache_handler (int timeout, oid *rootoid, size_t rootoid_len)
	returns a stash_cache handler that can be injected into a given handler chain (with the specified timeout and root OID values), but only if that handler chain explicitly supports stash cache processing.
netsnmp_mib_handler *	netsnmp_get_bare_stash_cache_handler (void)
	returns a single stash_cache handler that can be injected into a given handler chain (with a fixed timeout), but only if that handler chain explicitly supports stash cache processing.
netsnmp_mib_handler *	netsnmp_get_stash_cache_handler (void)
	returns a stash_cache handler sub-chain that can be injected into a given (arbitrary) handler chain, using a fixed cache timeout.
netsnmp_mib_handler *	netsnmp_get_timed_stash_cache_handler (int timeout, oid *rootoid, size_t rootoid_len)
	returns a stash_cache handler sub-chain that can be injected into a given (arbitrary) handler chain, using a configurable cache timeout.
netsnmp_oid_stash_node **	netsnmp_extract_stash_cache (netsnmp_agent_request_info *reqinfo)
	extracts a pointer to the stash_cache info from the reqinfo structure.
int	netsnmp_stash_cache_helper (netsnmp_mib_handler handler, netsnmp_handler_registration reginfo, netsnmp_agent_request_info reqinfo, netsnmp_request_info requests)
int	_netsnmp_stash_cache_load (netsnmp_cache cache, void magic)
	updates a given cache depending on whether it needs to or not.
void	_netsnmp_stash_cache_free (netsnmp_cache cache, void magic)
void	netsnmp_init_stash_cache_helper (void)
	initializes the stash_cache helper which then registers a stash_cache handler as a run-time injectable handler for configuration file use.

説明

Automatically caches data for certain handlers.

This handler caches data in an optimized way which may aleviate the need for the lower level handlers to perform as much optimization. Specifically, somewhere in the lower level handlers must be a handler that supports the MODE_GET_STASH operation. Note that the table_iterator helper supports this.

関数

int _netsnmp_stash_cache_load	(	netsnmp_cache *	cache,
		void *	magic
	)

updates a given cache depending on whether it needs to or not.

stash_cache.c の 190 行で定義されています。

参照先 netsnmp_stash_cache_info_s::cache・netsnmp_cache_s::cache_hint・netsnmp_handler_args_s::handler・netsnmp_cache_s::magic・netsnmp_agent_request_info_s::mode・netsnmp_agent_add_list_data()・netsnmp_call_next_handler()・netsnmp_create_data_list()・netsnmp_get_new_stash_cache()・netsnmp_mib_handler_s::next・NULL・netsnmp_handler_args_s::reginfo・netsnmp_handler_args_s::reqinfo・netsnmp_handler_args_s::requests.

参照元 netsnmp_get_timed_bare_stash_cache_handler().

netsnmp_oid_stash_node** netsnmp_extract_stash_cache ( netsnmp_agent_request_info * reqinfo )

extracts a pointer to the stash_cache info from the reqinfo structure.

stash_cache.c の 112 行で定義されています。

参照先 netsnmp_agent_get_list_data().

参照元 netsnmp_stash_to_next_helper()・netsnmp_table_iterator_helper_handler().

netsnmp_mib_handler* netsnmp_get_bare_stash_cache_handler ( void )

returns a single stash_cache handler that can be injected into a given handler chain (with a fixed timeout), but *only* if that handler chain explicitly supports stash cache processing.

stash_cache.c の 78 行で定義されています。

参照先 netsnmp_get_timed_bare_stash_cache_handler()・NULL.

参照元 netsnmp_get_stash_cache_handler().

netsnmp_mib_handler* netsnmp_get_stash_cache_handler ( void )

returns a stash_cache handler sub-chain that can be injected into a given (arbitrary) handler chain, using a fixed cache timeout.

stash_cache.c の 87 行で定義されています。

参照先 netsnmp_get_bare_stash_cache_handler()・netsnmp_get_stash_to_next_handler()・netsnmp_mib_handler_s::next.

参照元 netsnmp_init_stash_cache_helper().

netsnmp_mib_handler* netsnmp_get_timed_bare_stash_cache_handler	(	int	timeout,
		oid *	rootoid,
		size_t	rootoid_len
	)

returns a stash_cache handler that can be injected into a given handler chain (with the specified timeout and root OID values), but *only* if that handler chain explicitly supports stash cache processing.

stash_cache.c の 44 行で定義されています。

参照先 _netsnmp_stash_cache_free()・_netsnmp_stash_cache_load()・netsnmp_mib_handler_s::myvoid・netsnmp_cache_create()・netsnmp_cache_handler_get()・netsnmp_create_handler()・netsnmp_handler_free()・netsnmp_stash_cache_helper()・netsnmp_mib_handler_s::next・NULL.

参照元 netsnmp_get_bare_stash_cache_handler()・netsnmp_get_timed_stash_cache_handler().