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object_monitor.h
资源名称：net-snmp-5.2.2.rar　[点击查看]
上传用户：wxp200602
上传日期：2007-10-30
资源大小：4028k
文件大小：5k
源码类别：

SNMP编程

开发平台：

Unix_Linux

object_monitor.h：源码内容
  1. /**************************************************************************
  2.  * object_monitor.h
  3.  *
  4.  * Contributed by: Robert Story <rstory@freesnmp.com>
  5.  *
  6.  * $Id: object_monitor.h,v 1.2 2002/07/18 17:56:17 rstory Exp $
  7.  *
  8.  * functions and data structures for cooperating code to monitor objects.
  9.  *
  10.  * WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING!
  11.  * WARNING!                                                       WARNING!
  12.  * WARNING!                                                       WARNING!
  13.  * WARNING!         This code is under active development         WARNING!
  14.  * WARNING!         and is subject to change at any time.         WARNING!
  15.  * WARNING!                                                       WARNING!
  16.  * WARNING!                                                       WARNING!
  17.  * WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING!
  18.  */
  19. #ifndef OBJECT_MONITOR_H
  20. #define OBJECT_MONITOR_H
  22. #ifdef __cplusplus
  23. extern          "C" {
  24. #endif
  26.     /*
  27.      * notification types
  28.      */
  29.     enum {
  30.         /*
  31.          * cooperative notification from the object being watched
  32.          */
  33.         NOTIFICATION_COOPERATIVE = 1,
  34.         /*
  35.          * notification that an object has been set vi SNMP-SET
  36.          */
  37.         NOTIFICATION_SET_REQUEST,
  38.         /*
  39.          * end of current notification types
  40.          */
  41.         NOTIFICATION_END
  42.     };
  44.     /*
  45.      * COOPERATIVE event types
  46.      */
  47.     enum {
  48.         EVENT_ROW_ADD = 1,
  49.         EVENT_ROW_MOD,
  50.         EVENT_ROW_DEL,
  51.         EVENT_COL_MOD,
  52.         EVENT_OBJ_MOD,
  53.         EVENT_END
  54.     };
  56.     /*
  57.      * data structures
  58.      */
  61.     /*
  62.      * callback header
  63.      */
  64.     typedef struct netsnmp_monitor_callback_header_s {
  66.    /** callback type */
  67.         unsigned int    event;
  69.    /** registered oid */
  70.         netsnmp_index   monitored_object;
  72.    /** priority */
  73.         int             priority;
  75.    /** pointer given by watcher at registration */
  76.         void           *watcher_data;
  78.    /** pointer passed from the monitored object */
  79.         void           *object_info;
  81.    /** DO NOT USE, INTERNAL USE ONLY */
  82.         struct netsnmp_monitor_callback_header_s *private;
  83.         int             refs;
  86.     } netsnmp_monitor_callback_header;
  88.     /*
  89.      *
  90.      */
  91.     typedef struct netsnmp_monitor_callback_set_request_s {
  93.     /** header */
  94.         netsnmp_monitor_callback_header hdr;
  96.     /** handler that registered to handle this object */
  97.         netsnmp_mib_handler *handler;
  99.     /** pdu containing the set request */
  100.         netsnmp_pdu    *pdu;
  102.     /** the set request */
  103.         netsnmp_request_info *request;
  105.     } netsnmp_monitor_set_request_data;
  107.     /*
  108.      *
  109.      */
  110.     typedef struct netsnmp_monitor_callback_cooperative_s {
  112.    /** header */
  113.         netsnmp_monitor_callback_header hdr;
  115.     } netsnmp_monitor_callback_cooperative;
  119.     typedef void   
  120.         (netsnmp_object_monitor_callback) (netsnmp_monitor_callback_header
  121.                                            *);
  126.     /**********************************************************************
  127.      * Registration function prototypes
  128.      */
  130.     /*
  131.      * Register a callback for the specified object.
  132.      */
  133.     int             netsnmp_monitor_register(oid * object, size_t oid_len,
  134.                                              int priority,
  135.                                              unsigned int events,
  136.                                              void *watcher_data,
  137.                                              netsnmp_object_monitor_callback
  138.                                              * cb);
  140.     /*
  141.      * Unregister a callback for the specified object.
  142.      */
  143.     int             netsnmp_monitor_unregister(oid * object,
  144.                                                size_t oid_len,
  145.                                                int priority,
  146.                                                void *watcher_data,
  147.                                                netsnmp_object_monitor_callback
  148.                                                * cb);
  150.     /*
  151.      * check to see if a registration exists for an object/event combination
  152.      */
  153.     int             netsnmp_monitor_check_registered(int event, oid * oid,
  154.                                                      int oid_len);
  157.     /**********************************************************************
  158.      * function prototypes
  159.      */
  161.     /*
  162.      * Notifies the object monitor of an event.
  163.      */
  164.     void            netsnmp_notify_monitor(netsnmp_monitor_callback_header
  165.                                            * cbh);
  170.     /**********************************************************************
  171.      * function prototypes
  172.      */
  174.     /*
  175.      * Notifies the object monitor of a cooperative event.
  176.      */
  177.     void            netsnmp_notify_cooperative(int event, oid * object,
  178.                                                size_t len, char oid_steal,
  179.                                                void *object_info);
  183. #ifdef __cplusplus
  184. }
  185. #endif
  186. #endif /** OBJECT_MONITOR_H */