1/* 2 * Copyright (c) 1993-1995, 1999-2008 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * Declarations for timer interrupt callouts. 30 */ 31 32#ifndef _KERN_TIMER_CALL_H_ 33#define _KERN_TIMER_CALL_H_ 34 35#include <mach/mach_types.h> 36 37#ifdef MACH_KERNEL_PRIVATE 38 39#include <kern/call_entry.h> 40 41/* 42 * NOTE: for now, bsd/dev/dtrace/dtrace_glue.c has its own definition 43 * of this data structure, and the two had better match. 44 */ 45typedef struct timer_call { 46 struct call_entry call_entry; 47 decl_simple_lock_data( ,lock); /* protects call_entry queue */ 48 uint64_t soft_deadline; 49 uint32_t flags; 50 boolean_t async_dequeue; /* this field is protected by 51 call_entry queue's lock */ 52 uint64_t ttd; /* Time to deadline at creation */ 53} *timer_call_t; 54 55typedef void *timer_call_param_t; 56typedef void (*timer_call_func_t)( 57 timer_call_param_t param0, 58 timer_call_param_t param1); 59#define TIMER_CALL_CRITICAL 0x01 60#define TIMER_CALL_LOCAL 0x02 61extern boolean_t timer_call_enter( 62 timer_call_t call, 63 uint64_t deadline, 64 uint32_t flags); 65 66extern boolean_t timer_call_enter1( 67 timer_call_t call, 68 timer_call_param_t param1, 69 uint64_t deadline, 70 uint32_t flags); 71 72extern boolean_t timer_call_cancel( 73 timer_call_t call); 74 75typedef struct timer_call timer_call_data_t; 76 77extern void timer_call_initialize(void); 78 79extern void timer_call_initialize_queue(mpqueue_head_t *); 80 81extern void timer_call_setup( 82 timer_call_t call, 83 timer_call_func_t func, 84 timer_call_param_t param0); 85 86#endif /* MACH_KERNEL_PRIVATE */ 87 88#endif /* _KERN_TIMER_CALL_H_ */ 89