1/*
2 * Copyright (c) 2000 Apple Computer, 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/* CMU_HIST */
29
30/*
31 * kern/ast.h: Definitions for Asynchronous System Traps.
32 */
33
34#ifndef _KERN_AST_H_
35#define _KERN_AST_H_
36
37#include <kern/thread.h>
38
39struct task;
40
41extern void act_set_astbsd(thread_t);
42extern void bsd_ast(thread_t);
43
44#define AST_KEVENT_RETURN_TO_KERNEL 0x0001
45#define AST_KEVENT_REDRIVE_THREADREQ 0x0002
46#define AST_KEVENT_WORKQ_QUANTUM_EXPIRED 0x0004
47
48extern void kevent_ast(thread_t thread, uint16_t bits);
49extern void act_set_astkevent(thread_t thread, uint16_t bits);
50extern uint16_t act_clear_astkevent(thread_t thread, uint16_t bits);
51extern bool act_set_ast_reset_pcs(struct task *task, thread_t thread);
52
53#if CONFIG_DTRACE
54extern void ast_dtrace_on(void);
55#endif
56
57extern void act_set_astproc_resource(thread_t);
58extern void proc_filedesc_ast(task_t task);
59#endif /* _KERN_AST_H_ */
60