1997-06-21 04:59:26 +02:00
|
|
|
/* Definitions of constants and data structure for POSIX 1003.1b-1993
|
|
|
|
scheduling interface.
|
2012-01-08 05:57:22 +01:00
|
|
|
Copyright (C) 1996-1999,2001-2003,2005,2006,2007,2008,2009,2011,2012
|
2011-02-07 19:53:37 +01:00
|
|
|
Free Software Foundation, Inc.
|
1996-11-15 05:08:00 +01:00
|
|
|
This file is part of the GNU C Library.
|
1996-02-27 01:55:03 +01:00
|
|
|
|
1996-11-15 05:08:00 +01:00
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
2001-07-06 06:58:11 +02:00
|
|
|
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.
|
1996-02-27 01:55:03 +01:00
|
|
|
|
1996-11-15 05:08:00 +01:00
|
|
|
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
|
2001-07-06 06:58:11 +02:00
|
|
|
Lesser General Public License for more details.
|
1996-02-27 01:55:03 +01:00
|
|
|
|
2001-07-06 06:58:11 +02:00
|
|
|
You should have received a copy of the GNU Lesser General Public
|
2012-02-10 00:18:22 +01:00
|
|
|
License along with the GNU C Library; if not, see
|
|
|
|
<http://www.gnu.org/licenses/>. */
|
1996-02-27 01:55:03 +01:00
|
|
|
|
2010-09-02 03:11:31 +02:00
|
|
|
#ifndef __need_schedparam
|
|
|
|
|
1997-06-21 04:59:26 +02:00
|
|
|
#ifndef _SCHED_H
|
1997-11-26 05:23:08 +01:00
|
|
|
# error "Never include <bits/sched.h> directly; use <sched.h> instead."
|
1997-06-21 04:59:26 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* Scheduling algorithms. */
|
|
|
|
#define SCHED_OTHER 0
|
|
|
|
#define SCHED_FIFO 1
|
|
|
|
#define SCHED_RR 2
|
|
|
|
|
|
|
|
/* Data structure to describe a process' schedulability. */
|
|
|
|
struct sched_param
|
|
|
|
{
|
2001-01-28 09:15:06 +01:00
|
|
|
int __sched_priority;
|
1997-06-21 04:59:26 +02:00
|
|
|
};
|
Update.
* posix/sched.h: Change prototypes of sched_getaffinity and
sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO.
* sysdeps/generic/sched_getaffinity.c: Adjust definition.
* sysdeps/generic/sched_setaffinity.c: Likewise.
* sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS,
__CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET,
__CPU_CLR, and __CPU_ISSET.
* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
* sysdeps/unix/sysv/linux/sched_getaffinity.c: New file.
* sysdeps/unix/sysv/linux/sched_setaffinity.c: New file.
* include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange.
(atomic_exchange_rel): New #define.
* sysdeps/ia64/bits/atomic.h: Likewise.
* sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from
atomic_exchange.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/powerpc/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc64/bits/atomic.h: Likewise.
* sysdeps/x86_64/bits/atomic.h: Likewise.
* csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
2003-05-10 07:36:37 +02:00
|
|
|
|
2010-09-02 03:11:31 +02:00
|
|
|
#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
|
|
|
|
|
Update.
* posix/sched.h: Change prototypes of sched_getaffinity and
sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO.
* sysdeps/generic/sched_getaffinity.c: Adjust definition.
* sysdeps/generic/sched_setaffinity.c: Likewise.
* sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS,
__CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET,
__CPU_CLR, and __CPU_ISSET.
* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
* sysdeps/unix/sysv/linux/sched_getaffinity.c: New file.
* sysdeps/unix/sysv/linux/sched_setaffinity.c: New file.
* include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange.
(atomic_exchange_rel): New #define.
* sysdeps/ia64/bits/atomic.h: Likewise.
* sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from
atomic_exchange.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/powerpc/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc64/bits/atomic.h: Likewise.
* sysdeps/x86_64/bits/atomic.h: Likewise.
* csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
2003-05-10 07:36:37 +02:00
|
|
|
|
2003-05-10 19:50:46 +02:00
|
|
|
#if defined _SCHED_H && !defined __cpu_set_t_defined
|
|
|
|
# define __cpu_set_t_defined
|
Update.
* posix/sched.h: Change prototypes of sched_getaffinity and
sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO.
* sysdeps/generic/sched_getaffinity.c: Adjust definition.
* sysdeps/generic/sched_setaffinity.c: Likewise.
* sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS,
__CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET,
__CPU_CLR, and __CPU_ISSET.
* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
* sysdeps/unix/sysv/linux/sched_getaffinity.c: New file.
* sysdeps/unix/sysv/linux/sched_setaffinity.c: New file.
* include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange.
(atomic_exchange_rel): New #define.
* sysdeps/ia64/bits/atomic.h: Likewise.
* sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from
atomic_exchange.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/powerpc/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc64/bits/atomic.h: Likewise.
* sysdeps/x86_64/bits/atomic.h: Likewise.
* csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
2003-05-10 07:36:37 +02:00
|
|
|
/* Size definition for CPU sets. */
|
2003-05-10 19:50:46 +02:00
|
|
|
# define __CPU_SETSIZE 1024
|
|
|
|
# define __NCPUBITS (8 * sizeof (__cpu_mask))
|
Update.
* posix/sched.h: Change prototypes of sched_getaffinity and
sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO.
* sysdeps/generic/sched_getaffinity.c: Adjust definition.
* sysdeps/generic/sched_setaffinity.c: Likewise.
* sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS,
__CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET,
__CPU_CLR, and __CPU_ISSET.
* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
* sysdeps/unix/sysv/linux/sched_getaffinity.c: New file.
* sysdeps/unix/sysv/linux/sched_setaffinity.c: New file.
* include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange.
(atomic_exchange_rel): New #define.
* sysdeps/ia64/bits/atomic.h: Likewise.
* sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from
atomic_exchange.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/powerpc/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc64/bits/atomic.h: Likewise.
* sysdeps/x86_64/bits/atomic.h: Likewise.
* csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
2003-05-10 07:36:37 +02:00
|
|
|
|
2011-02-07 19:53:37 +01:00
|
|
|
/* Type for array elements in 'cpu_set_t'. */
|
Update.
* posix/sched.h: Change prototypes of sched_getaffinity and
sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO.
* sysdeps/generic/sched_getaffinity.c: Adjust definition.
* sysdeps/generic/sched_setaffinity.c: Likewise.
* sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS,
__CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET,
__CPU_CLR, and __CPU_ISSET.
* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
* sysdeps/unix/sysv/linux/sched_getaffinity.c: New file.
* sysdeps/unix/sysv/linux/sched_setaffinity.c: New file.
* include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange.
(atomic_exchange_rel): New #define.
* sysdeps/ia64/bits/atomic.h: Likewise.
* sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from
atomic_exchange.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/powerpc/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc64/bits/atomic.h: Likewise.
* sysdeps/x86_64/bits/atomic.h: Likewise.
* csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
2003-05-10 07:36:37 +02:00
|
|
|
typedef unsigned long int __cpu_mask;
|
|
|
|
|
|
|
|
/* Basic access functions. */
|
2003-05-10 19:50:46 +02:00
|
|
|
# define __CPUELT(cpu) ((cpu) / __NCPUBITS)
|
|
|
|
# define __CPUMASK(cpu) ((__cpu_mask) 1 << ((cpu) % __NCPUBITS))
|
Update.
* posix/sched.h: Change prototypes of sched_getaffinity and
sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO.
* sysdeps/generic/sched_getaffinity.c: Adjust definition.
* sysdeps/generic/sched_setaffinity.c: Likewise.
* sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS,
__CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET,
__CPU_CLR, and __CPU_ISSET.
* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
* sysdeps/unix/sysv/linux/sched_getaffinity.c: New file.
* sysdeps/unix/sysv/linux/sched_setaffinity.c: New file.
* include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange.
(atomic_exchange_rel): New #define.
* sysdeps/ia64/bits/atomic.h: Likewise.
* sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from
atomic_exchange.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/powerpc/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc64/bits/atomic.h: Likewise.
* sysdeps/x86_64/bits/atomic.h: Likewise.
* csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
2003-05-10 07:36:37 +02:00
|
|
|
|
|
|
|
/* Data structure to describe CPU mask. */
|
|
|
|
typedef struct
|
|
|
|
{
|
|
|
|
__cpu_mask __bits[__CPU_SETSIZE / __NCPUBITS];
|
|
|
|
} cpu_set_t;
|
|
|
|
|
|
|
|
/* Access functions for CPU masks. */
|
2011-02-07 19:53:37 +01:00
|
|
|
# if __GNUC_PREREQ (2, 91)
|
|
|
|
# define __CPU_ZERO_S(setsize, cpusetp) \
|
|
|
|
do __builtin_memset (cpusetp, '\0', setsize); while (0)
|
|
|
|
# else
|
|
|
|
# define __CPU_ZERO_S(setsize, cpusetp) \
|
Update.
* posix/sched.h: Change prototypes of sched_getaffinity and
sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO.
* sysdeps/generic/sched_getaffinity.c: Adjust definition.
* sysdeps/generic/sched_setaffinity.c: Likewise.
* sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS,
__CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET,
__CPU_CLR, and __CPU_ISSET.
* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
* sysdeps/unix/sysv/linux/sched_getaffinity.c: New file.
* sysdeps/unix/sysv/linux/sched_setaffinity.c: New file.
* include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange.
(atomic_exchange_rel): New #define.
* sysdeps/ia64/bits/atomic.h: Likewise.
* sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from
atomic_exchange.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/powerpc/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc64/bits/atomic.h: Likewise.
* sysdeps/x86_64/bits/atomic.h: Likewise.
* csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
2003-05-10 07:36:37 +02:00
|
|
|
do { \
|
2011-02-07 19:53:37 +01:00
|
|
|
size_t __i; \
|
|
|
|
size_t __imax = (setsize) / sizeof (__cpu_mask); \
|
|
|
|
__cpu_mask *__bits = (cpusetp)->__bits; \
|
|
|
|
for (__i = 0; __i < __imax; ++__i) \
|
|
|
|
__bits[__i] = 0; \
|
Update.
* posix/sched.h: Change prototypes of sched_getaffinity and
sched_setaffinity. Define CPU_SET, CPU_CLR, CPU_ISSET, and CPU_ZERO.
* sysdeps/generic/sched_getaffinity.c: Adjust definition.
* sysdeps/generic/sched_setaffinity.c: Likewise.
* sysdeps/generic/bits/sched.h: Define __CPU_SETSIZE, __NCPUBITS,
__CPUELT, __CPUMASK, cpu_set_t, __cpu_mask, __CPU_ZERO, __CPU_SET,
__CPU_CLR, and __CPU_ISSET.
* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
* sysdeps/unix/sysv/linux/sched_getaffinity.c: New file.
* sysdeps/unix/sysv/linux/sched_setaffinity.c: New file.
* include/atomic.h (atomic_exchange_acq): Renamed from atomic_exchange.
(atomic_exchange_rel): New #define.
* sysdeps/ia64/bits/atomic.h: Likewise.
* sysdeps/i386/i486/bits/atomic.h (atomic_exchange_acq): Renamed from
atomic_exchange.
* sysdeps/m68k/m68020/bits/atomic.h: Likewise.
* sysdeps/powerpc/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Likewise.
* sysdeps/sparc/sparc64/bits/atomic.h: Likewise.
* sysdeps/x86_64/bits/atomic.h: Likewise.
* csu/tst-atomic.c: Use atomic_exchange_acq instead of atomic_exchange.
2003-05-10 07:36:37 +02:00
|
|
|
} while (0)
|
2011-02-07 19:53:37 +01:00
|
|
|
# endif
|
|
|
|
# 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) \
|
2012-01-08 05:57:22 +01:00
|
|
|
? ((((const __cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
|
2011-02-07 19:53:37 +01:00
|
|
|
& __CPUMASK (__cpu))) != 0 \
|
|
|
|
: 0; }))
|
|
|
|
|
|
|
|
# define __CPU_COUNT_S(setsize, cpusetp) \
|
|
|
|
__sched_cpucount (setsize, cpusetp)
|
|
|
|
|
|
|
|
# if __GNUC_PREREQ (2, 91)
|
|
|
|
# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
|
|
|
|
(__builtin_memcmp (cpusetp1, cpusetp2, setsize) == 0)
|
|
|
|
# else
|
|
|
|
# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
|
|
|
|
(__extension__ \
|
2012-01-08 05:57:22 +01:00
|
|
|
({ const __cpu_mask *__arr1 = (cpusetp1)->__bits; \
|
|
|
|
const __cpu_mask *__arr2 = (cpusetp2)->__bits; \
|
2011-02-07 19:53:37 +01:00
|
|
|
size_t __imax = (setsize) / sizeof (__cpu_mask); \
|
|
|
|
size_t __i; \
|
|
|
|
for (__i = 0; __i < __imax; ++__i) \
|
2011-07-19 02:19:14 +02:00
|
|
|
if (__arr1[__i] != __arr2[__i]) \
|
2011-02-07 19:53:37 +01:00
|
|
|
break; \
|
|
|
|
__i == __imax; }))
|
|
|
|
# endif
|
|
|
|
|
|
|
|
# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
|
|
|
|
(__extension__ \
|
|
|
|
({ cpu_set_t *__dest = (destset); \
|
2012-01-08 05:57:22 +01:00
|
|
|
const __cpu_mask *__arr1 = (srcset1)->__bits; \
|
|
|
|
const __cpu_mask *__arr2 = (srcset2)->__bits; \
|
2011-02-07 19:53:37 +01:00
|
|
|
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)
|
2007-07-19 19:22:27 +02:00
|
|
|
|
|
|
|
__BEGIN_DECLS
|
|
|
|
|
|
|
|
extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp)
|
|
|
|
__THROW;
|
2011-02-07 19:53:37 +01:00
|
|
|
extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur;
|
|
|
|
extern void __sched_cpufree (cpu_set_t *__set) __THROW;
|
2007-07-19 19:22:27 +02:00
|
|
|
|
|
|
|
__END_DECLS
|
|
|
|
|
2003-05-10 19:50:46 +02:00
|
|
|
#endif
|