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edf5b2d7 UD |
1 | /* Definitions of constants and data structure for POSIX 1003.1b-1993 |
2 | scheduling interface. | |
dff8da6b | 3 | Copyright (C) 1996-2024 Free Software Foundation, Inc. |
10dc2a90 | 4 | This file is part of the GNU C Library. |
edf5b2d7 | 5 | |
10dc2a90 | 6 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
edf5b2d7 | 10 | |
10dc2a90 UD |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
edf5b2d7 | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
edf5b2d7 | 19 | |
46ee3da5 ZW |
20 | #ifndef _BITS_SCHED_H |
21 | #define _BITS_SCHED_H 1 | |
4959e310 | 22 | |
5107cf1d | 23 | #ifndef _SCHED_H |
f4017d20 | 24 | # error "Never include <bits/sched.h> directly; use <sched.h> instead." |
5107cf1d UD |
25 | #endif |
26 | ||
edf5b2d7 | 27 | /* Scheduling algorithms. */ |
02a52de0 UD |
28 | #define SCHED_OTHER 0 |
29 | #define SCHED_FIFO 1 | |
30 | #define SCHED_RR 2 | |
abcea667 | 31 | #ifdef __USE_GNU |
02a52de0 | 32 | # define SCHED_BATCH 3 |
46ee3da5 | 33 | # define SCHED_ISO 4 |
02a52de0 | 34 | # define SCHED_IDLE 5 |
46ee3da5 | 35 | # define SCHED_DEADLINE 6 |
02a52de0 UD |
36 | |
37 | # define SCHED_RESET_ON_FORK 0x40000000 | |
abcea667 | 38 | #endif |
edf5b2d7 | 39 | |
ce67228d | 40 | #ifdef __USE_GNU |
edf5b2d7 | 41 | /* Cloning flags. */ |
f4017d20 UD |
42 | # define CSIGNAL 0x000000ff /* Signal mask to be sent at exit. */ |
43 | # define CLONE_VM 0x00000100 /* Set if VM shared between processes. */ | |
3387a425 UD |
44 | # define CLONE_FS 0x00000200 /* Set if fs info shared between processes. */ |
45 | # define CLONE_FILES 0x00000400 /* Set if open files shared between processes. */ | |
f4017d20 | 46 | # define CLONE_SIGHAND 0x00000800 /* Set if signal handlers shared. */ |
98013846 JM |
47 | # define CLONE_PIDFD 0x00001000 /* Set if a pidfd should be placed |
48 | in parent. */ | |
3387a425 | 49 | # define CLONE_PTRACE 0x00002000 /* Set if tracing continues on the child. */ |
d53afacb UD |
50 | # define CLONE_VFORK 0x00004000 /* Set if the parent wants the child to |
51 | wake it up on mm_release. */ | |
755e51be UD |
52 | # define CLONE_PARENT 0x00008000 /* Set if we want to have the same |
53 | parent as the cloner. */ | |
54 | # define CLONE_THREAD 0x00010000 /* Set to add to same thread group. */ | |
55 | # define CLONE_NEWNS 0x00020000 /* Set to create new namespace. */ | |
56 | # define CLONE_SYSVSEM 0x00040000 /* Set to shared SVID SEM_UNDO semantics. */ | |
57 | # define CLONE_SETTLS 0x00080000 /* Set TLS info. */ | |
58 | # define CLONE_PARENT_SETTID 0x00100000 /* Store TID in userlevel buffer | |
59 | before MM copy. */ | |
60 | # define CLONE_CHILD_CLEARTID 0x00200000 /* Register exit futex and memory | |
61 | location to clear. */ | |
62 | # define CLONE_DETACHED 0x00400000 /* Create clone detached. */ | |
63 | # define CLONE_UNTRACED 0x00800000 /* Set if the tracing process can't | |
64 | force CLONE_PTRACE on this clone. */ | |
65 | # define CLONE_CHILD_SETTID 0x01000000 /* Store TID in userlevel buffer in | |
66 | the child. */ | |
48526672 | 67 | # define CLONE_NEWCGROUP 0x02000000 /* New cgroup namespace. */ |
0ab7632d UD |
68 | # define CLONE_NEWUTS 0x04000000 /* New utsname group. */ |
69 | # define CLONE_NEWIPC 0x08000000 /* New ipcs. */ | |
70 | # define CLONE_NEWUSER 0x10000000 /* New user namespace. */ | |
71 | # define CLONE_NEWPID 0x20000000 /* New pid namespace. */ | |
72 | # define CLONE_NEWNET 0x40000000 /* New network namespace. */ | |
73 | # define CLONE_IO 0x80000000 /* Clone I/O context. */ | |
04b30fe4 AZ |
74 | |
75 | /* cloning flags intersect with CSIGNAL so can be used only with unshare and | |
76 | clone3 syscalls. */ | |
77 | #define CLONE_NEWTIME 0x00000080 /* New time namespace */ | |
f4017d20 | 78 | #endif |
edf5b2d7 | 79 | |
e60c3f2b | 80 | #include <bits/types/struct_sched_param.h> |
edf5b2d7 | 81 | |
f4017d20 UD |
82 | __BEGIN_DECLS |
83 | ||
ce67228d | 84 | #ifdef __USE_GNU |
e32f487e | 85 | /* Clone current process. */ |
4d3a563f | 86 | extern int clone (int (*__fn) (void *__arg), void *__child_stack, |
6f8116b3 | 87 | int __flags, void *__arg, ...) __THROW; |
e32f487e UD |
88 | |
89 | /* Unshare the specified resources. */ | |
90 | extern int unshare (int __flags) __THROW; | |
ec08f13d UD |
91 | |
92 | /* Get index of currently used CPU. */ | |
93 | extern int sched_getcpu (void) __THROW; | |
ce67228d | 94 | |
a092ca94 L |
95 | /* Get currently used CPU and NUMA node. */ |
96 | extern int getcpu (unsigned int *, unsigned int *) __THROW; | |
97 | ||
ce67228d UD |
98 | /* Switch process to namespace of type NSTYPE indicated by FD. */ |
99 | extern int setns (int __fd, int __nstype) __THROW; | |
0c5ecdc4 | 100 | #endif |
f4017d20 | 101 | |
8381e467 UD |
102 | __END_DECLS |
103 | ||
46ee3da5 | 104 | #endif /* bits/sched.h */ |