/* * Copyright (c) 2006 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * 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. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * 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_OSREFERENCE_LICENSE_HEADER_END@ */ typedef enum { KDP_EVENT_ENTER, KDP_EVENT_EXIT, KDP_EVENT_PANICLOG } kdp_event_t; typedef void (*kdp_callout_fn_t)(void *arg, kdp_event_t event); /* * Register fn(arg, event) to be called at kdp entry/exit. * The callouts are made in a single-threaded environment, interrupts are * disabled and processors other than the callout processor quiesced. * N.B. callouts are strictly limited in what they can do: they must execute * with interrupts disabled and they can't call back into the kernel for any * non-trivial service. */ extern void kdp_register_callout(kdp_callout_fn_t fn, void *arg);