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* 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.
This commit is contained in:
Ulrich Drepper
2003-05-10 05:36:37 +00:00
parent 880867a475
commit 949ec76407
28 changed files with 480 additions and 77 deletions
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35
sysdeps/unix/sysv/linux/bits/sched.h
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@@ -1,6 +1,6 @@
/* Definitions of constants and data structure for POSIX 1003.1b-1993
scheduling interface.
Copyright (C) 1996,1997,1998,1999,2001,2002 Free Software Foundation, Inc.
Copyright (C) 1996-1999,2001,2002,2003 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
@@ -86,3 +86,36 @@ struct __sched_param
};
# undef __need_schedparam
#endif
/* Size definition for CPU sets. */
#define __CPU_SETSIZE 1024
#define __NCPUBITS (8 * sizeof (__cpu_mask))
/* Type for array elements in 'cpu_set'. */
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(cpusetp) \
do { \
unsigned int __i; \
cpu_set *__arr = (cpusetp); \
for (__i = 0; __i < sizeof (cpu_set) / sizeof (__cpu_mask); ++__i) \
__arr->__bits[__i] = 0; \
} while (0)
#define __CPU_SET(cpu, cpusetp) \
((cpusetp)->__bits[__CPUELT (cpu)] |= __CPUMASK (cpu))
#define __CPU_CLR(cpu, cpusetp) \
((cpusetp)->__bits[__CPUELT (cpu)] &= ~__CPUMASK (cpu))
#define __CPU_ISSET(cpu, cpusetp) \
(((cpusetp)->__bits[__CPUELT (cpu)] & __CPUMASK (cpu)) != 0)