xref: /freebsd/sys/sys/posix4.h (revision 9768746b)
1 #ifndef _P1003_1B_P1003_1B_H_
2 #define _P1003_1B_P1003_1B_H_
3 /*-
4  * SPDX-License-Identifier: BSD-4-Clause
5  *
6  * Copyright (c) 1996, 1997, 1998
7  *	HD Associates, Inc.  All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *	This product includes software developed by HD Associates, Inc
20  * 4. Neither the name of the author nor the names of any co-contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * $FreeBSD$
37  */
38 
39 #include <sys/param.h>
40 #include <sys/ioccom.h>
41 #include <sys/malloc.h>
42 #include <sys/sched.h>
43 
44 /* Generate syscall stubs for when something is optionally
45  * loadable as a module.  References "syscall_not_present".
46  * XXX Good candidate for sys/syscall.h
47  */
48 struct proc;
49 struct nosys_args;
50 extern int syscall_not_present(struct thread *, const char *, struct nosys_args *);
51 
52 #define SYSCALL_NOT_PRESENT_GEN(SC) \
53 int sys_ ## SC (struct thread *td, struct SC##_args *uap) \
54 { \
55 	return syscall_not_present(td, #SC , (struct nosys_args *)uap); \
56 }
57 
58 MALLOC_DECLARE(M_P31B);
59 
60 int p31b_proc(struct proc *, pid_t, struct proc **);
61 
62 void p31b_setcfg(int, int);
63 int p31b_getcfg(int);
64 int p31b_iscfg(int);
65 void p31b_unsetcfg(int);
66 
67 #ifdef _KPOSIX_PRIORITY_SCHEDULING
68 
69 /*
70  * KSCHED_OP_RW is a vector of read/write flags for each entry indexed
71  * by the enum ksched_op.
72  *
73  * 1 means you need write access, 0 means read is sufficient.
74  */
75 
76 enum ksched_op {
77 #define KSCHED_OP_RW { 1, 0, 1, 0, 0, 0, 0, 0 }
78 
79 	SCHED_SETPARAM,
80 	SCHED_GETPARAM,
81 	SCHED_SETSCHEDULER,
82 	SCHED_GETSCHEDULER,
83 	SCHED_YIELD,
84 	SCHED_GET_PRIORITY_MAX,
85 	SCHED_GET_PRIORITY_MIN,
86 	SCHED_RR_GET_INTERVAL,
87 	SCHED_OP_MAX
88 };
89 
90 struct ksched;
91 
92 int ksched_attach(struct ksched **);
93 int ksched_detach(struct ksched *);
94 
95 int ksched_setparam(struct ksched *,
96 	struct thread *, const struct sched_param *);
97 int ksched_getparam(struct ksched *,
98 	struct thread *, struct sched_param *);
99 
100 int ksched_setscheduler(struct ksched *,
101 	struct thread *, int, const struct sched_param *);
102 int ksched_getscheduler(struct ksched *, struct thread *, int *);
103 
104 int ksched_yield(struct ksched *);
105 
106 int ksched_get_priority_max(struct ksched *, int, int *);
107 int ksched_get_priority_min(struct ksched *, int, int *);
108 
109 int ksched_rr_get_interval(struct ksched *,
110 	struct thread *, struct timespec *);
111 
112 #endif /* _KPOSIX_PRIORITY_SCHEDULING */
113 
114 #endif /* _P1003_1B_P1003_1B_H_ */
115