watcher(3)

NAME
watcher -

Watch a specified variable and process it as an instance or scalar object.

  Functions
netsnmp_mib_handler * netsnmp_get_watcher_handler (void)
netsnmp_watcher_info * netsnmp_init_watcher_info6 (netsnmp_watcher_info *winfo, void *data, size_t size, u_char type, int flags, size_t max_size, size_t *size_p)
netsnmp_watcher_info * netsnmp_create_watcher_info6 (void *data, size_t size, u_char type, int flags, size_t max_size, size_t *size_p)
netsnmp_watcher_info * netsnmp_init_watcher_info (netsnmp_watcher_info *winfo, void *data, size_t size, u_char type, int flags)
netsnmp_watcher_info * netsnmp_create_watcher_info (void *data, size_t size, u_char type, int flags)
int netsnmp_register_watched_instance (netsnmp_handler_registration *reginfo, netsnmp_watcher_info *watchinfo)
int netsnmp_register_watched_scalar (netsnmp_handler_registration *reginfo, netsnmp_watcher_info *watchinfo)
int netsnmp_watcher_helper_handler (netsnmp_mib_handler *handler, netsnmp_handler_registration *reginfo, netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests)
netsnmp_mib_handler * netsnmp_get_watched_timestamp_handler (void)
int netsnmp_watched_timestamp_register (netsnmp_mib_handler *whandler, netsnmp_handler_registration *reginfo, marker_t timestamp)
int netsnmp_register_watched_timestamp (netsnmp_handler_registration *reginfo, marker_t timestamp)
int netsnmp_watched_timestamp_handler (netsnmp_mib_handler *handler, netsnmp_handler_registration *reginfo, netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests)
netsnmp_mib_handler * netsnmp_get_watched_spinlock_handler (void)
int netsnmp_register_watched_spinlock (netsnmp_handler_registration *reginfo, int *spinlock)
int netsnmp_watched_spinlock_handler (netsnmp_mib_handler *handler, netsnmp_handler_registration *reginfo, netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests)
int netsnmp_register_ulong_scalar (const char *name, const oid *reg_oid, size_t reg_oid_len, u_long *it, Netsnmp_Node_Handler *subhandler)
int netsnmp_register_read_only_ulong_scalar (const char *name, const oid *reg_oid, size_t reg_oid_len, u_long *it, Netsnmp_Node_Handler *subhandler)
int netsnmp_register_long_scalar (const char *name, const oid *reg_oid, size_t reg_oid_len, long *it, Netsnmp_Node_Handler *subhandler)
int netsnmp_register_read_only_long_scalar (const char *name, const oid *reg_oid, size_t reg_oid_len, long *it, Netsnmp_Node_Handler *subhandler)
int netsnmp_register_int_scalar (const char *name, const oid *reg_oid, size_t reg_oid_len, int *it, Netsnmp_Node_Handler *subhandler)
int netsnmp_register_read_only_int_scalar (const char *name, const oid *reg_oid, size_t reg_oid_len, int *it, Netsnmp_Node_Handler *subhandler)
int netsnmp_register_read_only_counter32_scalar (const char *name, const oid *reg_oid, size_t reg_oid_len, u_long *it, Netsnmp_Node_Handler *subhandler)
#define NETSNMP_WATCHER_DIRECT MIB_HANDLER_CUSTOM1
#define WATCHER_FIXED_SIZE
The size of the watched object is constant.
#define WATCHER_MAX_SIZE
The maximum size of the watched object is stored in max_size.
#define WATCHER_SIZE_IS_PTR
If set then the variable data_size_p points to is supposed to hold the current size of the watched object and will be updated on writes.
#define WATCHER_SIZE_STRLEN
If set then data is suppposed to be a zero-terminated character array and both data_size and data_size_p are ignored.
typedef struct netsnmp_watcher_info_s netsnmp_watcher_info

Detailed Description

Watch a specified variable and process it as an instance or scalar object.

Define Documentation

  #define WATCHER_FIXED_SIZE

The size of the watched object is constant.

Definition at line 26 of file watcher.h.

  #define WATCHER_MAX_SIZE

The maximum size of the watched object is stored in max_size. If WATCHER_SIZE_STRLEN is set then it is supposed that max_size + 1 bytes could be stored in the buffer.

Examples:
watched.c.

Definition at line 32 of file watcher.h.

  #define WATCHER_SIZE_IS_PTR

If set then the variable data_size_p points to is supposed to hold the current size of the watched object and will be updated on writes. Since:
    Net-SNMP 5.5

Definition at line 38 of file watcher.h.

  #define WATCHER_SIZE_STRLEN

If set then data is suppposed to be a zero-terminated character array and both data_size and data_size_p are ignored. Additionally \0 is a forbidden character in the data set.

Since:
    Net-SNMP 5.5

Definition at line 45 of file watcher.h.

Author

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