xref: /freebsd/sys/contrib/openzfs/include/sys/zthr.h (revision 61145dc2b94f12f6a47344fb9aac702321880e43)
1 // SPDX-License-Identifier: CDDL-1.0
2 /*
3  * CDDL HEADER START
4  *
5  * This file and its contents are supplied under the terms of the
6  * Common Development and Distribution License ("CDDL"), version 1.0.
7  * You may only use this file in accordance with the terms of version
8  * 1.0 of the CDDL.
9  *
10  * A full copy of the text of the CDDL should have accompanied this
11  * source. A copy of the CDDL is also available via the Internet at
12  * http://www.illumos.org/license/CDDL.
13  *
14  * CDDL HEADER END
15  */
16 
17 /*
18  * Copyright (c) 2017, 2018 by Delphix. All rights reserved.
19  */
20 
21 #ifndef _SYS_ZTHR_H
22 #define	_SYS_ZTHR_H
23 
24 typedef struct zthr zthr_t;
25 typedef void (zthr_func_t)(void *, zthr_t *);
26 typedef boolean_t (zthr_checkfunc_t)(void *, zthr_t *);
27 
28 extern zthr_t *zthr_create(const char *zthr_name,
29     zthr_checkfunc_t checkfunc, zthr_func_t *func, void *arg,
30 	pri_t pri);
31 extern zthr_t *zthr_create_timer(const char *zthr_name,
32     zthr_checkfunc_t *checkfunc, zthr_func_t *func, void *arg,
33 	hrtime_t nano_wait, pri_t pri);
34 extern void zthr_destroy(zthr_t *t);
35 
36 extern void zthr_wakeup(zthr_t *t);
37 extern void zthr_cancel(zthr_t *t);
38 extern void zthr_resume(zthr_t *t);
39 extern void zthr_wait_cycle_done(zthr_t *t);
40 
41 extern boolean_t zthr_iscancelled(zthr_t *t);
42 extern boolean_t zthr_iscurthread(zthr_t *t);
43 extern boolean_t zthr_has_waiters(zthr_t *t);
44 
45 #endif /* _SYS_ZTHR_H */
46