FreeBSD/Linux Kernel Cross Reference
sys/bsd/sys/kern_event.h

     /*
      * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
      *
      * @APPLE_LICENSE_HEADER_START@
      * 
      * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
      * 
      * This file contains Original Code and/or Modifications of Original Code
      * as defined in and that are subject to the Apple Public Source License
     * Version 2.0 (the 'License'). You may not use this file except in
     * compliance with the License. Please obtain a copy of the License at
     * http://www.opensource.apple.com/apsl/ and read it before using this
     * file.
     * 
     * The Original Code and all software distributed under the License are
     * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
     * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
     * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
     * Please see the License for the specific language governing rights and
     * limitations under the License.
     * 
     * @APPLE_LICENSE_HEADER_END@
     */
    /* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
    
    
    #ifndef SYS_KERN_EVENT_H
    #define SYS_KERN_EVENT_H
    
    #include <sys/appleapiopts.h>
    #include <sys/ioccom.h>
    #include <sys/sys_domain.h>
    
    #define KEVENTS_ON  1
    #define KEV_SNDSPACE (4 * 1024)
    #define KEV_RECVSPACE (8 * 1024)
    
    #define KEV_ANY_VENDOR    0
    #define KEV_ANY_CLASS     0
    #define KEV_ANY_SUBCLASS  0
    
    /*
     * Vendor Code
     */
    
    #define KEV_VENDOR_APPLE        1
    
    
    /*
     * Definition of top-level classifications
     */
    
    #define KEV_NETWORK_CLASS 1
    #define KEV_IOKIT_CLASS   2
    #define KEV_SYSTEM_CLASS  3
    
    
    struct kern_event_msg {
         u_long            total_size;      /* Size of entire event msg */
         u_long            vendor_code;     /* For non-Apple extensibility */
         u_long            kev_class;       /* Layer of event source */
         u_long            kev_subclass;    /* Component within layer    */
         u_long            id;              /* Monotonically increasing value  */
         u_long            event_code;      /* unique code */
         u_long            event_data[1];   /* One or more data longwords      */
    
    };
    
    #define KEV_MSG_HEADER_SIZE   (6 * sizeof(u_long))
    
    
    struct kev_request {
         u_long     vendor_code;
         u_long     kev_class;
         u_long     kev_subclass;
    };
    
    #define SIOCGKEVID      _IOR('e', 1, u_long)
    #define SIOCSKEVFILT    _IOW('e', 2, struct kev_request)
    #define SIOCGKEVFILT    _IOR('e', 3, struct kev_request)
    
    #ifdef KERNEL
    #ifdef __APPLE_API_UNSTABLE
    
    #define N_KEV_VECTORS     5
    
    struct kev_d_vectors {
    
         u_long     data_length;    /* Length of the event data */
         void       *data_ptr;    /* Pointer to event data */
    };     
    
    
    struct kev_msg {
         u_long            vendor_code;     /* For non-Apple extensibility */
         u_long            kev_class;       /* Layer of event source */
         u_long            kev_subclass;    /* Component within layer    */
         u_long            event_code;      /* The event code        */
        struct kev_d_vectors  dv[N_KEV_VECTORS];      /* Up to n data vectors  */
   };
   
   int  kev_post_msg(struct kev_msg *event);
   
   #endif /* ___APPLE_API_UNSTABLE */
   #ifdef __APPLE_API_PRIVATE
   
   LIST_HEAD(kern_event_head, kern_event_pcb);
   
   struct  kern_event_pcb {
        LIST_ENTRY(kern_event_pcb) ev_link;     /* glue on list of all PCBs */
        struct  socket *ev_socket;     /* pointer back to socket */
        u_long         vendor_code_filter;
        u_long         class_filter;
        u_long         subclass_filter;
   };
   
   #define sotoevpcb(so)   ((struct kern_event_pcb *)((so)->so_pcb))
   
   #endif /* __APPLE_API_PRIVATE */
   #endif
   
   #endif

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