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2003-05-10  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/generic/bits/sched.h: Define cpu_set_t only if not
	already defined and when really needed.
	* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
This commit is contained in:
Ulrich Drepper
2003-05-10 17:50:46 +00:00
parent c16d5e968f
commit 0e563cd683
4 changed files with 39 additions and 24 deletions
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19
sysdeps/unix/sysv/linux/bits/sched.h
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@ -88,16 +88,18 @@ struct __sched_param
#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))
# 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))
# define __CPUELT(cpu) ((cpu) / __NCPUBITS)
# define __CPUMASK(cpu) ((__cpu_mask) 1 << ((cpu) % __NCPUBITS))
/* Data structure to describe CPU mask. */
typedef struct
@ -106,16 +108,17 @@ typedef struct
} cpu_set_t;
/* Access functions for CPU masks. */
#define __CPU_ZERO(cpusetp) \
# 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) \
# define __CPU_SET(cpu, cpusetp) \
((cpusetp)->__bits[__CPUELT (cpu)] |= __CPUMASK (cpu))
#define __CPU_CLR(cpu, cpusetp) \
# define __CPU_CLR(cpu, cpusetp) \
((cpusetp)->__bits[__CPUELT (cpu)] &= ~__CPUMASK (cpu))
#define __CPU_ISSET(cpu, cpusetp) \
# define __CPU_ISSET(cpu, cpusetp) \
(((cpusetp)->__bits[__CPUELT (cpu)] & __CPUMASK (cpu)) != 0)
#endif