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| author | Ulrich Drepper <drepper@redhat.com> | 2003-05-10 05:36:37 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2003-05-10 05:36:37 +0000 |
| commit | 949ec7640747878988b3f8019a7b7f98c10ab3ac (patch) | |
| tree | 35994dc52f7f30189e655666a5de0f37cb1a23e4 /bits/sched.h | |
| parent | 880867a475b1016f892a1248a3fce693406bf1f1 (diff) | |
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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.
Diffstat (limited to 'bits/sched.h')
| -rw-r--r-- | bits/sched.h | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/bits/sched.h b/bits/sched.h index d0d655d48e..fc754bff51 100644 --- a/bits/sched.h +++ b/bits/sched.h @@ -1,6 +1,6 @@ /* Definitions of constants and data structure for POSIX 1003.1b-1993 scheduling interface. - Copyright (C) 1996, 1997, 2001 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 2001, 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 @@ -33,3 +33,36 @@ struct sched_param { int __sched_priority; }; + + +/* 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) |