arm-marvell-linux-uclibcgnueabi/libc/usr/include/bits/sched.h - toolchains/armada - Git at Google

 /* Definitions of constants and data structure for POSIX 1003.1b-1993
    scheduling interface.
    Copyright (C) 1996-1999,2001-2003,2005,2006,2007,2008
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.

    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, write to the Free
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */

 #ifndef __need_schedparam

 #ifndef _SCHED_H
 # error "Never include <bits/sched.h> directly; use <sched.h> instead."
 #endif


 /* Scheduling algorithms.  */
 #define SCHED_OTHER	0
 #define SCHED_FIFO	1
 #define SCHED_RR	2
 #ifdef __USE_GNU
 # define SCHED_BATCH	3
 #endif

 #ifdef __USE_MISC
 /* Cloning flags.  */
 # define CSIGNAL       0x000000ff /* Signal mask to be sent at exit.  */
 # define CLONE_VM      0x00000100 /* Set if VM shared between processes.  */
 # define CLONE_FS      0x00000200 /* Set if fs info shared between processes.  */
 # define CLONE_FILES   0x00000400 /* Set if open files shared between processes.  */
 # define CLONE_SIGHAND 0x00000800 /* Set if signal handlers shared.  */
 # define CLONE_PTRACE  0x00002000 /* Set if tracing continues on the child.  */
 # define CLONE_VFORK   0x00004000 /* Set if the parent wants the child to
 				     wake it up on mm_release.  */
 # define CLONE_PARENT  0x00008000 /* Set if we want to have the same
 				     parent as the cloner.  */
 # define CLONE_THREAD  0x00010000 /* Set to add to same thread group.  */
 # define CLONE_NEWNS   0x00020000 /* Set to create new namespace.  */
 # define CLONE_SYSVSEM 0x00040000 /* Set to shared SVID SEM_UNDO semantics.  */
 # define CLONE_SETTLS  0x00080000 /* Set TLS info.  */
 # define CLONE_PARENT_SETTID 0x00100000 /* Store TID in userlevel buffer
 					   before MM copy.  */
 # define CLONE_CHILD_CLEARTID 0x00200000 /* Register exit futex and memory
 					    location to clear.  */
 # define CLONE_DETACHED 0x00400000 /* Create clone detached.  */
 # define CLONE_UNTRACED 0x00800000 /* Set if the tracing process can't
 				      force CLONE_PTRACE on this clone.  */
 # define CLONE_CHILD_SETTID 0x01000000 /* Store TID in userlevel buffer in
 					  the child.  */
 # define CLONE_STOPPED 0x02000000 /* Start in stopped state.  */
 # define CLONE_NEWUTS	0x04000000	/* New utsname group.  */
 # define CLONE_NEWIPC	0x08000000	/* New ipcs.  */
 # define CLONE_NEWUSER	0x10000000	/* New user namespace.  */
 # define CLONE_NEWPID	0x20000000	/* New pid namespace.  */
 # define CLONE_NEWNET	0x40000000	/* New network namespace.  */
 # define CLONE_IO	0x80000000	/* Clone I/O context.  */
 #endif

 /* The official definition.  */
 struct sched_param
   {
     int __sched_priority;
   };

 __BEGIN_DECLS

 #ifdef __USE_MISC
 /* Clone current process.  */
 extern int clone (int (*__fn) (void *__arg), void *__child_stack,
 		  int __flags, void *__arg, ...) __THROW;

 /* Unshare the specified resources.  */
 extern int unshare (int __flags) __THROW;

 /* Get index of currently used CPU.  */
 extern int sched_getcpu (void) __THROW;
 #endif

 __END_DECLS

 #endif	/* need schedparam */

 #if !defined __defined_schedparam \
     && (defined __need_schedparam || defined _SCHED_H)
 # define __defined_schedparam	1
 /* Data structure to describe a process' schedulability.  */
 struct __sched_param
   {
     int __sched_priority;
   };
 # undef __need_schedparam
 #endif


 #if defined _SCHED_H && !defined __cpu_set_t_defined
 # define __cpu_set_t_defined
 /* Size definition for CPU sets.  */
 # define __CPU_SETSIZE	1024
 # define __NCPUBITS	(8 * sizeof (__cpu_mask))

 /* Type for array elements in 'cpu_set_t'.  */
 typedef unsigned long int __cpu_mask;

 /* Basic access functions.  */
 # define __CPUELT(cpu)	((cpu) / __NCPUBITS)
 # define __CPUMASK(cpu)	((__cpu_mask) 1 << ((cpu) % __NCPUBITS))

 /* Data structure to describe CPU mask.  */
 typedef struct
 {
   __cpu_mask __bits[__CPU_SETSIZE / __NCPUBITS];
 } cpu_set_t;

 /* Access functions for CPU masks.  */
 # define __CPU_ZERO_S(setsize, cpusetp) \
   do {									      \
     size_t __i;								      \
     size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
     __cpu_mask *__bits = (cpusetp)->__bits;				      \
     for (__i = 0; __i < __imax; ++__i)					      \
       __bits[__i] = 0;							      \
   } while (0)
 # define __CPU_SET_S(cpu, setsize, cpusetp) \
   (__extension__							      \
    ({ size_t __cpu = (cpu);						      \
       __cpu < 8 * (setsize)						      \
       ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)]		      \
 	 |= __CPUMASK (__cpu))						      \
       : 0; }))
 # define __CPU_CLR_S(cpu, setsize, cpusetp) \
   (__extension__							      \
    ({ size_t __cpu = (cpu);						      \
       __cpu < 8 * (setsize)						      \
       ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)]		      \
 	 &= ~__CPUMASK (__cpu))						      \
       : 0; }))
 # define __CPU_ISSET_S(cpu, setsize, cpusetp) \
   (__extension__							      \
    ({ size_t __cpu = (cpu);						      \
       __cpu < 8 * (setsize)						      \
       ? ((((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)]	      \
 	  & __CPUMASK (__cpu))) != 0					      \
       : 0; }))

 # define __CPU_COUNT_S(setsize, cpusetp) \
   __sched_cpucount (setsize, cpusetp)

 # define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
   (__extension__							      \
    ({ __cpu_mask *__arr1 = (cpusetp1)->__bits;				      \
       __cpu_mask *__arr2 = (cpusetp2)->__bits;				      \
       size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
       size_t __i;							      \
       for (__i = 0; __i < __imax; ++__i)				      \
 	if (__arr1[__i] != __arr2[__i])					      \
 	  break;							      \
       __i == __imax; }))

 # define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
   (__extension__							      \
    ({ cpu_set_t *__dest = (destset);					      \
       __cpu_mask *__arr1 = (srcset1)->__bits;				      \
       __cpu_mask *__arr2 = (srcset2)->__bits;				      \
       size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
       size_t __i;							      \
       for (__i = 0; __i < __imax; ++__i)				      \
 	((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i];    \
       __dest; }))

 # define __CPU_ALLOC_SIZE(count) \
   ((((count) + __NCPUBITS - 1) / __NCPUBITS) * sizeof (__cpu_mask))
 # define __CPU_ALLOC(count) __sched_cpualloc (count)
 # define __CPU_FREE(cpuset) __sched_cpufree (cpuset)

 __BEGIN_DECLS

 extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp)
   __THROW;
 #if 0 /* in uClibc we use macros */
 extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur;
 extern void __sched_cpufree (cpu_set_t *__set) __THROW;
 #else
 # define __sched_cpualloc(cnt) ((cpu_set_t *)malloc(__CPU_ALLOC_SIZE(cnt)))
 # define __sched_cpufree(__set) free(__set)
 #endif
 __END_DECLS

 #endif
	/* Definitions of constants and data structure for POSIX 1003.1b-1993
	scheduling interface.
	Copyright (C) 1996-1999,2001-2003,2005,2006,2007,2008
	Free Software Foundation, Inc.
	This file is part of the GNU C Library.

	The GNU C Library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Lesser General Public
	License as published by the Free Software Foundation; either
	version 2.1 of the License, or (at your option) any later version.

	The GNU C Library is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public
	License along with the GNU C Library; if not, write to the Free
	Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	02111-1307 USA. */

	#ifndef __need_schedparam

	#ifndef _SCHED_H
	# error "Never include <bits/sched.h> directly; use <sched.h> instead."
	#endif


	/* Scheduling algorithms. */
	#define SCHED_OTHER 0
	#define SCHED_FIFO 1
	#define SCHED_RR 2
	#ifdef __USE_GNU
	# define SCHED_BATCH 3
	#endif

	#ifdef __USE_MISC
	/* Cloning flags. */
	# define CSIGNAL 0x000000ff /* Signal mask to be sent at exit. */
	# define CLONE_VM 0x00000100 /* Set if VM shared between processes. */
	# define CLONE_FS 0x00000200 /* Set if fs info shared between processes. */
	# define CLONE_FILES 0x00000400 /* Set if open files shared between processes. */
	# define CLONE_SIGHAND 0x00000800 /* Set if signal handlers shared. */
	# define CLONE_PTRACE 0x00002000 /* Set if tracing continues on the child. */
	# define CLONE_VFORK 0x00004000 /* Set if the parent wants the child to
	wake it up on mm_release. */
	# define CLONE_PARENT 0x00008000 /* Set if we want to have the same
	parent as the cloner. */
	# define CLONE_THREAD 0x00010000 /* Set to add to same thread group. */
	# define CLONE_NEWNS 0x00020000 /* Set to create new namespace. */
	# define CLONE_SYSVSEM 0x00040000 /* Set to shared SVID SEM_UNDO semantics. */
	# define CLONE_SETTLS 0x00080000 /* Set TLS info. */
	# define CLONE_PARENT_SETTID 0x00100000 /* Store TID in userlevel buffer
	before MM copy. */
	# define CLONE_CHILD_CLEARTID 0x00200000 /* Register exit futex and memory
	location to clear. */
	# define CLONE_DETACHED 0x00400000 /* Create clone detached. */
	# define CLONE_UNTRACED 0x00800000 /* Set if the tracing process can't
	force CLONE_PTRACE on this clone. */
	# define CLONE_CHILD_SETTID 0x01000000 /* Store TID in userlevel buffer in
	the child. */
	# define CLONE_STOPPED 0x02000000 /* Start in stopped state. */
	# define CLONE_NEWUTS 0x04000000 /* New utsname group. */
	# define CLONE_NEWIPC 0x08000000 /* New ipcs. */
	# define CLONE_NEWUSER 0x10000000 /* New user namespace. */
	# define CLONE_NEWPID 0x20000000 /* New pid namespace. */
	# define CLONE_NEWNET 0x40000000 /* New network namespace. */
	# define CLONE_IO 0x80000000 /* Clone I/O context. */
	#endif

	/* The official definition. */
	struct sched_param
	{
	int __sched_priority;
	};

	__BEGIN_DECLS

	#ifdef __USE_MISC
	/* Clone current process. */
	extern int clone (int (__fn) (void __arg), void *__child_stack,
	int __flags, void *__arg, ...) __THROW;

	/* Unshare the specified resources. */
	extern int unshare (int __flags) __THROW;

	/* Get index of currently used CPU. */
	extern int sched_getcpu (void) __THROW;
	#endif

	__END_DECLS

	#endif /* need schedparam */

	#if !defined __defined_schedparam \
	&& (defined __need_schedparam \|\| defined _SCHED_H)
	# define __defined_schedparam 1
	/* Data structure to describe a process' schedulability. */
	struct __sched_param
	{
	int __sched_priority;
	};
	# undef __need_schedparam
	#endif


	#if defined _SCHED_H && !defined __cpu_set_t_defined
	# define __cpu_set_t_defined
	/* Size definition for CPU sets. */
	# define __CPU_SETSIZE 1024
	# define __NCPUBITS (8 * sizeof (__cpu_mask))

	/* Type for array elements in 'cpu_set_t'. */
	typedef unsigned long int __cpu_mask;

	/* Basic access functions. */
	# define __CPUELT(cpu) ((cpu) / __NCPUBITS)
	# define __CPUMASK(cpu) ((__cpu_mask) 1 << ((cpu) % __NCPUBITS))

	/* Data structure to describe CPU mask. */
	typedef struct
	{
	__cpu_mask __bits[__CPU_SETSIZE / __NCPUBITS];
	} cpu_set_t;

	/* Access functions for CPU masks. */
	# define __CPU_ZERO_S(setsize, cpusetp) \
	do { \
	size_t __i; \
	size_t __imax = (setsize) / sizeof (__cpu_mask); \
	__cpu_mask *__bits = (cpusetp)->__bits; \
	for (__i = 0; __i < __imax; ++__i) \
	__bits[__i] = 0; \
	} while (0)
	# define __CPU_SET_S(cpu, setsize, cpusetp) \
	(__extension__ \
	({ size_t __cpu = (cpu); \
	__cpu < 8 * (setsize) \
	? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
	\|= __CPUMASK (__cpu)) \
	: 0; }))
	# define __CPU_CLR_S(cpu, setsize, cpusetp) \
	(__extension__ \
	({ size_t __cpu = (cpu); \
	__cpu < 8 * (setsize) \
	? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
	&= ~__CPUMASK (__cpu)) \
	: 0; }))
	# define __CPU_ISSET_S(cpu, setsize, cpusetp) \
	(__extension__ \
	({ size_t __cpu = (cpu); \
	__cpu < 8 * (setsize) \
	? ((((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
	& __CPUMASK (__cpu))) != 0 \
	: 0; }))

	# define __CPU_COUNT_S(setsize, cpusetp) \
	__sched_cpucount (setsize, cpusetp)

	# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
	(__extension__ \
	({ __cpu_mask *__arr1 = (cpusetp1)->__bits; \
	__cpu_mask *__arr2 = (cpusetp2)->__bits; \
	size_t __imax = (setsize) / sizeof (__cpu_mask); \
	size_t __i; \
	for (__i = 0; __i < __imax; ++__i) \
	if (__arr1[__i] != __arr2[__i]) \
	break; \
	__i == __imax; }))

	# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
	(__extension__ \
	({ cpu_set_t *__dest = (destset); \
	__cpu_mask *__arr1 = (srcset1)->__bits; \
	__cpu_mask *__arr2 = (srcset2)->__bits; \
	size_t __imax = (setsize) / sizeof (__cpu_mask); \
	size_t __i; \
	for (__i = 0; __i < __imax; ++__i) \
	((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i]; \
	__dest; }))

	# define __CPU_ALLOC_SIZE(count) \
	((((count) + __NCPUBITS - 1) / __NCPUBITS) * sizeof (__cpu_mask))
	# define __CPU_ALLOC(count) __sched_cpualloc (count)
	# define __CPU_FREE(cpuset) __sched_cpufree (cpuset)

	__BEGIN_DECLS

	extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp)
	__THROW;
	#if 0 /* in uClibc we use macros */
	extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur;
	extern void __sched_cpufree (cpu_set_t *__set) __THROW;
	#else
	# define __sched_cpualloc(cnt) ((cpu_set_t *)malloc(__CPU_ALLOC_SIZE(cnt)))
	# define __sched_cpufree(__set) free(__set)
	#endif
	__END_DECLS

	#endif