1997-06-21 04:59:26 +02:00
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/* Definitions of constants and data structure for POSIX 1003.1b-1993
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scheduling interface.
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2017-01-01 01:14:16 +01:00
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Copyright (C) 1996-2017 Free Software Foundation, Inc.
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1996-11-15 05:08:00 +01:00
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This file is part of the GNU C Library.
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1996-02-27 01:55:03 +01:00
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1996-11-15 05:08:00 +01:00
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The GNU C Library is free software; you can redistribute it and/or
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2001-07-06 06:58:11 +02:00
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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1996-02-27 01:55:03 +01:00
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1996-11-15 05:08:00 +01:00
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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2001-07-06 06:58:11 +02:00
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Lesser General Public License for more details.
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1996-02-27 01:55:03 +01:00
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2001-07-06 06:58:11 +02:00
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You should have received a copy of the GNU Lesser General Public
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2012-02-10 00:18:22 +01:00
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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1996-02-27 01:55:03 +01:00
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2010-09-02 03:11:31 +02:00
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#ifndef __need_schedparam
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1997-06-21 04:59:26 +02:00
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#ifndef _SCHED_H
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1997-11-26 05:23:08 +01:00
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# error "Never include <bits/sched.h> directly; use <sched.h> instead."
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1997-06-21 04:59:26 +02:00
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#endif
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/* Scheduling algorithms. */
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#define SCHED_OTHER 0
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#define SCHED_FIFO 1
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#define SCHED_RR 2
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/* Data structure to describe a process' schedulability. */
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struct sched_param
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{
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2001-01-28 09:15:06 +01:00
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int __sched_priority;
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1997-06-21 04:59:26 +02:00
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};
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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
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2010-09-02 03:11:31 +02:00
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#endif /* need schedparam */
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#if !defined __defined_schedparam \
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&& (defined __need_schedparam || defined _SCHED_H)
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# define __defined_schedparam 1
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/* Data structure to describe a process' schedulability. */
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struct __sched_param
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{
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int __sched_priority;
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};
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# undef __need_schedparam
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#endif
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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
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2003-05-10 19:50:46 +02:00
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#if defined _SCHED_H && !defined __cpu_set_t_defined
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# define __cpu_set_t_defined
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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
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/* Size definition for CPU sets. */
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2003-05-10 19:50:46 +02:00
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# define __CPU_SETSIZE 1024
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# 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
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2011-02-07 19:53:37 +01:00
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/* 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
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typedef unsigned long int __cpu_mask;
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/* Basic access functions. */
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2003-05-10 19:50:46 +02:00
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# define __CPUELT(cpu) ((cpu) / __NCPUBITS)
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# 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
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/* Data structure to describe CPU mask. */
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typedef struct
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{
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__cpu_mask __bits[__CPU_SETSIZE / __NCPUBITS];
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} cpu_set_t;
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/* Access functions for CPU masks. */
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2011-02-07 19:53:37 +01:00
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# if __GNUC_PREREQ (2, 91)
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# define __CPU_ZERO_S(setsize, cpusetp) \
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do __builtin_memset (cpusetp, '\0', setsize); while (0)
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# else
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# define __CPU_ZERO_S(setsize, cpusetp) \
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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
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do { \
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2011-02-07 19:53:37 +01:00
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size_t __i; \
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size_t __imax = (setsize) / sizeof (__cpu_mask); \
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__cpu_mask *__bits = (cpusetp)->__bits; \
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for (__i = 0; __i < __imax; ++__i) \
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__bits[__i] = 0; \
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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
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} while (0)
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2011-02-07 19:53:37 +01:00
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# endif
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# define __CPU_SET_S(cpu, setsize, cpusetp) \
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(__extension__ \
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({ size_t __cpu = (cpu); \
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__cpu < 8 * (setsize) \
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? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
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|= __CPUMASK (__cpu)) \
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: 0; }))
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# define __CPU_CLR_S(cpu, setsize, cpusetp) \
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(__extension__ \
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({ size_t __cpu = (cpu); \
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__cpu < 8 * (setsize) \
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? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
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&= ~__CPUMASK (__cpu)) \
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: 0; }))
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# define __CPU_ISSET_S(cpu, setsize, cpusetp) \
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(__extension__ \
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({ size_t __cpu = (cpu); \
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__cpu < 8 * (setsize) \
|
2012-01-08 05:57:22 +01:00
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? ((((const __cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \
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2011-02-07 19:53:37 +01:00
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& __CPUMASK (__cpu))) != 0 \
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: 0; }))
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# define __CPU_COUNT_S(setsize, cpusetp) \
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__sched_cpucount (setsize, cpusetp)
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# if __GNUC_PREREQ (2, 91)
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# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
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(__builtin_memcmp (cpusetp1, cpusetp2, setsize) == 0)
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# else
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# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
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(__extension__ \
|
2012-01-08 05:57:22 +01:00
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({ const __cpu_mask *__arr1 = (cpusetp1)->__bits; \
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const __cpu_mask *__arr2 = (cpusetp2)->__bits; \
|
2011-02-07 19:53:37 +01:00
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size_t __imax = (setsize) / sizeof (__cpu_mask); \
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size_t __i; \
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for (__i = 0; __i < __imax; ++__i) \
|
2011-07-19 02:19:14 +02:00
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if (__arr1[__i] != __arr2[__i]) \
|
2011-02-07 19:53:37 +01:00
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break; \
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__i == __imax; }))
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# endif
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# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
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(__extension__ \
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({ cpu_set_t *__dest = (destset); \
|
2012-01-08 05:57:22 +01:00
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const __cpu_mask *__arr1 = (srcset1)->__bits; \
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const __cpu_mask *__arr2 = (srcset2)->__bits; \
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2011-02-07 19:53:37 +01:00
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size_t __imax = (setsize) / sizeof (__cpu_mask); \
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size_t __i; \
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for (__i = 0; __i < __imax; ++__i) \
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((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i]; \
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__dest; }))
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# define __CPU_ALLOC_SIZE(count) \
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((((count) + __NCPUBITS - 1) / __NCPUBITS) * sizeof (__cpu_mask))
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# define __CPU_ALLOC(count) __sched_cpualloc (count)
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# define __CPU_FREE(cpuset) __sched_cpufree (cpuset)
|
2007-07-19 19:22:27 +02:00
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__BEGIN_DECLS
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extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp)
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__THROW;
|
2011-02-07 19:53:37 +01:00
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extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur;
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extern void __sched_cpufree (cpu_set_t *__set) __THROW;
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2007-07-19 19:22:27 +02:00
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__END_DECLS
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2003-05-10 19:50:46 +02:00
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#endif
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