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netsnmp_table_data(3) |
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table_data: Helps you implement a table with datamatted storage. − This helper helps you implement a table where all the indexes are expected to be stored within the agent itself and not in some external storage location. More...
Modules
table_dataset: Helps you
implement a table with automatted storage.
This handler helps you implement a table where all the data
is expected to be stored within the agent itself and not in
some external storage location.
Functions
void
netsnmp_table_data_generate_index_oid
(netsnmp_table_row *row)
generates the index portion of an table oid from a
varlist.
int netsnmp_table_data_add_row (netsnmp_table_data
*table, netsnmp_table_row *row)
Adds a row of data to a given table (stored in proper
lexographical order).
netsnmp_table_row * netsnmp_table_data_remove_row
(netsnmp_table_data *table, netsnmp_table_row *row)
removes a row of data to a given table and returns it (no
free’s called)
void * netsnmp_table_data_delete_row
(netsnmp_table_row *row)
deletes a row’s memory.
void * netsnmp_table_data_remove_and_delete_row
(netsnmp_table_data *table, netsnmp_table_row *row)
removes and frees a row of data to a given table and returns
the void *
NETSNMP_INLINE void netsnmp_table_data_replace_row
(netsnmp_table_data *table, netsnmp_table_row *origrow,
netsnmp_table_row *newrow)
swaps out origrow with newrow.
netsnmp_table_row * netsnmp_table_data_get
(netsnmp_table_data *table, netsnmp_variable_list *indexes)
finds the data in ’datalist’ stored at
’indexes’
netsnmp_table_row * netsnmp_table_data_get_from_oid
(netsnmp_table_data *table, oid *searchfor, size_t
searchfor_len)
finds the data in ’datalist’ stored at the
searchfor oid
netsnmp_mib_handler * netsnmp_get_table_data_handler
(netsnmp_table_data *table)
Creates a table_data handler and returns it.
int netsnmp_register_table_data
(netsnmp_handler_registration *reginfo, netsnmp_table_data
*table, netsnmp_table_registration_info *table_info)
registers a handler as a data table.
int netsnmp_register_read_only_table_data
(netsnmp_handler_registration *reginfo, netsnmp_table_data
*table, netsnmp_table_registration_info *table_info)
registers a handler as a read-only data table If table_info
!= NULL, it registers it as a normal table too.
int netsnmp_table_data_helper_handler
(netsnmp_mib_handler *handler, netsnmp_handler_registration
*reginfo, netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
The helper handler that takes care of passing a specific row
of data down to the lower handler(s).
netsnmp_table_data * netsnmp_create_table_data (const
char *name)
creates and returns a pointer to table data set
netsnmp_table_row * netsnmp_create_table_data_row
(void)
creates and returns a pointer to table data set
netsnmp_table_row * netsnmp_extract_table_row
(netsnmp_request_info *request)
extracts the row being accessed passed from the table_data
helper
void * netsnmp_extract_table_row_data
(netsnmp_request_info *request)
extracts the data from the row being accessed passed from
the table_data helper
int netsnmp_table_data_build_result
(netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo, netsnmp_request_info
*request, netsnmp_table_row *row, int column, u_char type,
u_char *result_data, size_t result_data_len)
builds a result given a row, a varbind to set and the
data
netsnmp_table_row * netsnmp_table_data_clone_row
(netsnmp_table_row *row)
clones a data row.
This helper helps you implement a table where all the indexes are expected to be stored within the agent itself and not in some external storage location.
It can be used to store a list of rows, where a row consists of the indexes to the table and a generic data pointer. You can then implement a subhandler which is passed the exact row definition and data it must return data for or accept data for. Complex GETNEXT handling is greatly simplified in this case.
netsnmp_table_data*
netsnmp_create_table_data (const char * name)
creates and returns a pointer to table data set
Definition at line 525 of file table_data.c.
Referenced by netsnmp_create_table_data_set().
netsnmp_table_row*
netsnmp_create_table_data_row (void)
creates and returns a pointer to table data set
Examples:
data_set.c.
Definition at line 535 of file table_data.c.
Referenced by netsnmp_table_data_set_create_row_from_defaults().
netsnmp_table_row*
netsnmp_extract_table_row (netsnmp_request_info *
request)
extracts the row being accessed passed from the table_data
helper
Definition at line 543 of file table_data.c.
References netsnmp_request_get_list_data().
Referenced by netsnmp_extract_table_row_data(), and netsnmp_table_data_set_helper_handler().
void*
netsnmp_extract_table_row_data (netsnmp_request_info *
request)
extracts the data from the row being accessed passed from
the table_data helper
Definition at line 552 of file table_data.c.
References netsnmp_extract_table_row().
Referenced by netsnmp_extract_table_data_set_column().
netsnmp_mib_handler*
netsnmp_get_table_data_handler (netsnmp_table_data *
table)
Creates a table_data handler and returns it.
Definition at line 236 of file table_data.c.
References netsnmp_create_handler(), and netsnmp_table_data_helper_handler().
Referenced by netsnmp_register_table_data().
int
netsnmp_register_read_only_table_data
(netsnmp_handler_registration * reginfo, netsnmp_table_data
* table, netsnmp_table_registration_info * table_info)
registers a handler as a read-only data table If table_info
!= NULL, it registers it as a normal table too.
Definition at line 269 of file table_data.c.
References netsnmp_get_read_only_handler(), netsnmp_inject_handler(), and netsnmp_register_table_data().
int
netsnmp_register_table_data (netsnmp_handler_registration *
reginfo, netsnmp_table_data * table,
netsnmp_table_registration_info * table_info)
registers a handler as a data table.
If table_info != NULL, it registers it as a normal table too.
Definition at line 258 of file table_data.c.
References netsnmp_get_table_data_handler(), netsnmp_inject_handler(), and netsnmp_register_table().
Referenced by netsnmp_register_read_only_table_data(), and netsnmp_register_table_data_set().
int
netsnmp_table_data_add_row (netsnmp_table_data * table,
netsnmp_table_row * row)
Adds a row of data to a given table (stored in proper
lexographical order).
returns SNMPERR_SUCCESS on successful addition. or SNMPERR_GENERR on failure (E.G., indexes already existed)
Definition at line 51 of file table_data.c.
References netsnmp_table_data_generate_index_oid(), and snmp_oid_compare().
Referenced by netsnmp_table_data_replace_row(), and netsnmp_table_dataset_add_row().
int
netsnmp_table_data_build_result
(netsnmp_handler_registration * reginfo,
netsnmp_agent_request_info * reqinfo, netsnmp_request_info *
request, netsnmp_table_row * row, int column, u_char type,
u_char * result_data, size_t result_data_len)
builds a result given a row, a varbind to set and the
data
Definition at line 564 of file table_data.c.
Referenced by netsnmp_table_data_helper_handler(), and netsnmp_table_data_set_helper_handler().
netsnmp_table_row*
netsnmp_table_data_clone_row (netsnmp_table_row * row)
clones a data row.
DOES NOT CLONE THE CONTAINED DATA.
Definition at line 598 of file table_data.c.
Referenced by netsnmp_table_data_set_clone_row().
void*
netsnmp_table_data_delete_row (netsnmp_table_row * row)
deletes a row’s memory.
returns the void data that it doesn’t know how to delete.
Definition at line 150 of file table_data.c.
Referenced by netsnmp_table_data_remove_and_delete_row(), and netsnmp_table_dataset_delete_row().
void
netsnmp_table_data_generate_index_oid (netsnmp_table_row *
row)
generates the index portion of an table oid from a
varlist.
Definition at line 39 of file table_data.c.
Referenced by netsnmp_table_data_add_row().
netsnmp_table_row*
netsnmp_table_data_get (netsnmp_table_data * table,
netsnmp_variable_list * indexes)
finds the data in ’datalist’ stored at
’indexes’
Definition at line 204 of file table_data.c.
References netsnmp_table_data_get_from_oid().
netsnmp_table_row*
netsnmp_table_data_get_from_oid (netsnmp_table_data * table,
oid * searchfor, size_t searchfor_len)
finds the data in ’datalist’ stored at the
searchfor oid
Definition at line 218 of file table_data.c.
References snmp_oid_compare().
Referenced by netsnmp_table_data_get(), and netsnmp_table_data_helper_handler().
int
netsnmp_table_data_helper_handler (netsnmp_mib_handler *
handler, netsnmp_handler_registration * reginfo,
netsnmp_agent_request_info * reqinfo, netsnmp_request_info *
requests)
The helper handler that takes care of passing a specific row
of data down to the lower handler(s).
It sets request->processed if the request should not be handled.
Definition at line 285 of file table_data.c.
References netsnmp_call_next_handler(), netsnmp_extract_table_info(), netsnmp_find_table_registration_info(), netsnmp_request_add_list_data(), netsnmp_table_data_build_result(), netsnmp_table_data_get_from_oid(), and snmp_oid_compare().
Referenced by netsnmp_get_table_data_handler().
void*
netsnmp_table_data_remove_and_delete_row (netsnmp_table_data
* table, netsnmp_table_row * row)
removes and frees a row of data to a given table and returns
the void *
returns the void * data on successful deletion. or NULL on failure (bad arguments)
Definition at line 179 of file table_data.c.
References netsnmp_table_data_delete_row(), and netsnmp_table_data_remove_row().
Referenced by netsnmp_table_dataset_remove_and_delete_row(), and netsnmp_table_dataset_remove_row().
netsnmp_table_row*
netsnmp_table_data_remove_row (netsnmp_table_data * table,
netsnmp_table_row * row)
removes a row of data to a given table and returns it (no
free’s called)
returns the row pointer itself on successful removing. or NULL on failure (bad arguments)
Definition at line 130 of file table_data.c.
Referenced by netsnmp_table_data_remove_and_delete_row(), and netsnmp_table_data_replace_row().
NETSNMP_INLINE
void netsnmp_table_data_replace_row (netsnmp_table_data *
table, netsnmp_table_row * origrow, netsnmp_table_row *
newrow)
swaps out origrow with newrow.
This does *not* delete/free anything!
Definition at line 194 of file table_data.c.
References netsnmp_table_data_add_row(), and netsnmp_table_data_remove_row().
Referenced by netsnmp_table_dataset_replace_row().
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netsnmp_table_data(3) | |