/usr/include/net-snmp/agent/watcher.h is in libsnmp-dev 5.4.3~dfsg-2.4ubuntu1.3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* watcher.h
*/
#ifndef NETSNMP_WATCHER_H
#define NETSNMP_WATCHER_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* if handler flag has this bit set, the timestamp will be
* treated as a pointer to the timestamp. If this bit is
* not set (the default), the timestamp is a struct timeval
* that must be compared to the agent starttime.
*/
#define NETSNMP_WATCHER_DIRECT MIB_HANDLER_CUSTOM1
#define WATCHER_FIXED_SIZE 0x01
#define WATCHER_MAX_SIZE 0x02
typedef struct netsnmp_watcher_info_s {
void *data;
size_t data_size;
size_t max_size;
u_char type;
int flags;
} netsnmp_watcher_info;
int netsnmp_register_watched_instance( netsnmp_handler_registration *reginfo,
netsnmp_watcher_info *winfo);
int netsnmp_register_watched_scalar( netsnmp_handler_registration *reginfo,
netsnmp_watcher_info *winfo);
int netsnmp_register_watched_timestamp(netsnmp_handler_registration *reginfo,
marker_t timestamp);
int netsnmp_watched_timestamp_register(netsnmp_mib_handler *whandler,
netsnmp_handler_registration *reginfo,
marker_t timestamp);
int netsnmp_register_watched_spinlock(netsnmp_handler_registration *reginfo,
int *spinlock);
/*
* Convenience registration calls
*/
int netsnmp_register_ulong_scalar(const char *name,
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,
oid * reg_oid, size_t reg_oid_len,
u_long * it,
Netsnmp_Node_Handler * subhandler);
int netsnmp_register_long_scalar(const char *name,
oid * reg_oid, size_t reg_oid_len,
long * it,
Netsnmp_Node_Handler * subhandler);
int netsnmp_register_read_only_long_scalar(const char *name,
oid * reg_oid, size_t reg_oid_len,
long * it,
Netsnmp_Node_Handler * subhandler);
int netsnmp_register_int_scalar(const char *name,
oid * reg_oid, size_t reg_oid_len,
int * it,
Netsnmp_Node_Handler * subhandler);
int netsnmp_register_read_only_int_scalar(const char *name,
oid * reg_oid, size_t reg_oid_len,
int * it,
Netsnmp_Node_Handler * subhandler);
int netsnmp_register_read_only_counter32_scalar(const char *name,
oid * reg_oid, size_t reg_oid_len,
u_long * it,
Netsnmp_Node_Handler * subhandler);
#define WATCHER_HANDLER_NAME "watcher"
netsnmp_mib_handler *netsnmp_get_watcher_handler(void);
netsnmp_watcher_info *netsnmp_create_watcher_info(void *, size_t, u_char, int);
Netsnmp_Node_Handler netsnmp_watcher_helper_handler;
netsnmp_mib_handler *netsnmp_get_watched_timestamp_handler(void);
Netsnmp_Node_Handler netsnmp_watched_timestamp_handler;
netsnmp_mib_handler *netsnmp_get_watched_spinlock_handler(void);
Netsnmp_Node_Handler netsnmp_watched_spinlock_handler;
#ifdef __cplusplus
}
#endif
#endif /** NETSNMP_WATCHER_H */
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