xref: /freebsd/sys/sys/posix4.h (revision 069ac184)
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 
37 #include <sys/param.h>
38 #include <sys/ioccom.h>
39 #include <sys/malloc.h>
40 #include <sys/sched.h>
41 
42 /* Generate syscall stubs for when something is optionally
43  * loadable as a module.  References "syscall_not_present".
44  * XXX Good candidate for sys/syscall.h
45  */
46 struct proc;
47 struct nosys_args;
48 extern int syscall_not_present(struct thread *, const char *, struct nosys_args *);
49 
50 #define SYSCALL_NOT_PRESENT_GEN(SC) \
51 int sys_ ## SC (struct thread *td, struct SC##_args *uap) \
52 { \
53 	return syscall_not_present(td, #SC , (struct nosys_args *)uap); \
54 }
55 
56 MALLOC_DECLARE(M_P31B);
57 
58 int p31b_proc(struct proc *, pid_t, struct proc **);
59 
60 void p31b_setcfg(int, int);
61 int p31b_getcfg(int);
62 int p31b_iscfg(int);
63 void p31b_unsetcfg(int);
64 
65 #ifdef _KPOSIX_PRIORITY_SCHEDULING
66 
67 /*
68  * KSCHED_OP_RW is a vector of read/write flags for each entry indexed
69  * by the enum ksched_op.
70  *
71  * 1 means you need write access, 0 means read is sufficient.
72  */
73 
74 enum ksched_op {
75 #define KSCHED_OP_RW { 1, 0, 1, 0, 0, 0, 0, 0 }
76 
77 	SCHED_SETPARAM,
78 	SCHED_GETPARAM,
79 	SCHED_SETSCHEDULER,
80 	SCHED_GETSCHEDULER,
81 	SCHED_YIELD,
82 	SCHED_GET_PRIORITY_MAX,
83 	SCHED_GET_PRIORITY_MIN,
84 	SCHED_RR_GET_INTERVAL,
85 	SCHED_OP_MAX
86 };
87 
88 struct ksched;
89 
90 int ksched_attach(struct ksched **);
91 int ksched_detach(struct ksched *);
92 
93 int ksched_setparam(struct ksched *,
94 	struct thread *, const struct sched_param *);
95 int ksched_getparam(struct ksched *,
96 	struct thread *, struct sched_param *);
97 
98 int ksched_setscheduler(struct ksched *,
99 	struct thread *, int, const struct sched_param *);
100 int ksched_getscheduler(struct ksched *, struct thread *, int *);
101 
102 int ksched_yield(struct ksched *);
103 
104 int ksched_get_priority_max(struct ksched *, int, int *);
105 int ksched_get_priority_min(struct ksched *, int, int *);
106 
107 int ksched_rr_get_interval(struct ksched *,
108 	struct thread *, struct timespec *);
109 
110 #endif /* _KPOSIX_PRIORITY_SCHEDULING */
111 
112 #endif /* _P1003_1B_P1003_1B_H_ */
113