Viewing file:  callback.h (2.66 KB) -rw-r--r--
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/*
* callback.c: A generic callback mechanism
*/
#ifndef CALLBACK_H
#define CALLBACK_H
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_CALLBACK_IDS 2
#define MAX_CALLBACK_SUBIDS 17
/*
* Callback Major Types
*/
#define SNMP_CALLBACK_LIBRARY 0
#define SNMP_CALLBACK_APPLICATION 1
/*
* SNMP_CALLBACK_LIBRARY minor types
*/
#define SNMP_CALLBACK_POST_READ_CONFIG 0
#define SNMP_CALLBACK_STORE_DATA 1
#define SNMP_CALLBACK_SHUTDOWN 2
#define SNMP_CALLBACK_POST_PREMIB_READ_CONFIG 3
#define SNMP_CALLBACK_LOGGING 4
#define SNMP_CALLBACK_SESSION_INIT 5
#define SNMP_CALLBACK_PRE_READ_CONFIG 7
#define SNMP_CALLBACK_PRE_PREMIB_READ_CONFIG 8
/*
* Callback priority (lower priority numbers called first(
*/
#define NETSNMP_CALLBACK_HIGHEST_PRIORITY -1024
#define NETSNMP_CALLBACK_DEFAULT_PRIORITY 0
#define NETSNMP_CALLBACK_LOWEST_PRIORITY 1024
typedef int (SNMPCallback) (int majorID, int minorID,
void *serverarg, void *clientarg);
struct snmp_gen_callback {
SNMPCallback *sc_callback;
void *sc_client_arg;
int priority;
struct snmp_gen_callback *next;
};
/*
* function prototypes
*/
NETSNMP_IMPORT
void init_callbacks(void);
NETSNMP_IMPORT
int netsnmp_register_callback(int major, int minor,
SNMPCallback * new_callback,
void *arg, int priority);
NETSNMP_IMPORT
int snmp_register_callback(int major, int minor,
SNMPCallback * new_callback,
void *arg);
NETSNMP_IMPORT
int snmp_call_callbacks(int major, int minor,
void *caller_arg);
NETSNMP_IMPORT
int snmp_callback_available(int major, int minor); /* is >1 available */
NETSNMP_IMPORT
int snmp_count_callbacks(int major, int minor); /* ret the number registered */
NETSNMP_IMPORT
int snmp_unregister_callback(int major, int minor,
SNMPCallback * new_callback,
void *arg, int matchargs);
NETSNMP_IMPORT
void clear_callback (void);
int netsnmp_callback_clear_client_arg(void *, int i, int j);
struct snmp_gen_callback *snmp_callback_list(int major, int minor);
#ifdef __cplusplus
}
#endif
#endif /* CALLBACK_H */
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