The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/bits/sched.h


$ cat -n /usr/include/x86_64-linux-gnu/bits/sched.h

     1	/* Definitions of constants and data structure for POSIX 1003.1b-1993
     2	   scheduling interface.
     3	   Copyright (C) 1996-2024 Free Software Foundation, Inc.
     4	   This file is part of the GNU C Library.
     5	
     6	   The GNU C Library is free software; you can redistribute it and/or
     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.
    10	
    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
    14	   Lesser General Public License for more details.
    15	
    16	   You should have received a copy of the GNU Lesser General Public
    17	   License along with the GNU C Library; if not, see
    18	   <https://www.gnu.org/licenses/>.  */
    19	
    20	#ifndef _BITS_SCHED_H
    21	#define _BITS_SCHED_H 1
    22	
    23	#ifndef _SCHED_H
    24	# error "Never include <bits/sched.h> directly; use <sched.h> instead."
    25	#endif
    26	
    27	/* Scheduling algorithms.  */
    28	#define SCHED_OTHER		0
    29	#define SCHED_FIFO		1
    30	#define SCHED_RR		2
    31	#ifdef __USE_GNU
    32	# define SCHED_BATCH		3
    33	# define SCHED_ISO		4
    34	# define SCHED_IDLE		5
    35	# define SCHED_DEADLINE		6
    36	
    37	# define SCHED_RESET_ON_FORK	0x40000000
    38	#endif
    39	
    40	#ifdef __USE_GNU
    41	/* Cloning flags.  */
    42	# define CSIGNAL       0x000000ff /* Signal mask to be sent at exit.  */
    43	# define CLONE_VM      0x00000100 /* Set if VM shared between processes.  */
    44	# define CLONE_FS      0x00000200 /* Set if fs info shared between processes.  */
    45	# define CLONE_FILES   0x00000400 /* Set if open files shared between processes.  */
    46	# define CLONE_SIGHAND 0x00000800 /* Set if signal handlers shared.  */
    47	# define CLONE_PIDFD   0x00001000 /* Set if a pidfd should be placed
    48					     in parent.  */
    49	# define CLONE_PTRACE  0x00002000 /* Set if tracing continues on the child.  */
    50	# define CLONE_VFORK   0x00004000 /* Set if the parent wants the child to
    51					     wake it up on mm_release.  */
    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.  */
    67	# define CLONE_NEWCGROUP    0x02000000	/* New cgroup namespace.  */
    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.  */
    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 */
    78	#endif
    79	
    80	#include <bits/types/struct_sched_param.h>
    81	
    82	__BEGIN_DECLS
    83	
    84	#ifdef __USE_GNU
    85	/* Clone current process.  */
    86	extern int clone (int (*__fn) (void *__arg), void *__child_stack,
    87			  int __flags, void *__arg, ...) __THROW;
    88	
    89	/* Unshare the specified resources.  */
    90	extern int unshare (int __flags) __THROW;
    91	
    92	/* Get index of currently used CPU.  */
    93	extern int sched_getcpu (void) __THROW;
    94	
    95	/* Get currently used CPU and NUMA node.  */
    96	extern int getcpu (unsigned int *, unsigned int *) __THROW;
    97	
    98	/* Switch process to namespace of type NSTYPE indicated by FD.  */
    99	extern int setns (int __fd, int __nstype) __THROW;
   100	#endif
   101	
   102	__END_DECLS
   103	
   104	#endif /* bits/sched.h */