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* posix/Makefile (routines): Add sched_cpualloc and sched_cpufree.

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(tests): Add tst-cpuset.
	* posix/sched_cpualloc.c: New file.
	* posix/sched_cpufree.c: New file.
	* posix/tst-cpuset.c: New file.
	* posix/Versions: Export __sched_cpualloc and __sched_cpufree for
	GLIBC_2.7.
	* sysdeps/unix/sysv/linux/bits/sched.h: Define __CPU_*_S macros.
	* posix/sched.h: Define old CPU_* macros in temers of __CPU_*_S
	macros.  Define CPU_*_S macros.
This commit is contained in:
Ulrich Drepper
2007-07-29 22:24:44 +00:00
parent a14ad5ae4b
commit 44f08a6ecc
7 changed files with 200 additions and 13 deletions
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57
sysdeps/unix/sysv/linux/bits/sched.h
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@ -118,27 +118,62 @@ typedef struct
} cpu_set_t;
/* Access functions for CPU masks. */
# define __CPU_ZERO(cpusetp) \
# define __CPU_ZERO_S(setsize, cpusetp) \
do { \
unsigned int __i; \
size_t __i; \
size_t __imax = (setsize) / sizeof (__cpu_mask); \
cpu_set_t *__arr = (cpusetp); \
for (__i = 0; __i < sizeof (cpu_set_t) / sizeof (__cpu_mask); ++__i) \
for (__i = 0; __i < __imax; ++__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)
# define __CPU_SET_S(cpu, setsize, cpusetp) \
({ size_t __cpu = (cpu); \
__cpu < 8 * (setsize) \
? ((cpusetp)->__bits[__CPUELT (__cpu)] |= __CPUMASK (__cpu)) : 0; })
# define __CPU_CLR_S(cpu, setsize, cpusetp) \
({ size_t __cpu = (cpu); \
__cpu < 8 * (setsize) \
? ((cpusetp)->__bits[__CPUELT (__cpu)] &= ~__CPUMASK (__cpu)) : 0; })
# define __CPU_ISSET_S(cpu, setsize, cpusetp) \
({ size_t __cpu = (cpu); \
__cpu < 8 * (setsize) \
? (((cpusetp)->__bits[__CPUELT (__cpu)] & __CPUMASK (__cpu))) != 0 : 0; })
# define __CPU_COUNT_S(setsize, cpusetp) \
__sched_cpucount (setsize, cpusetp)
# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
({ cpu_set_t *__arr1 = (cpusetp1); \
cpu_set_t *__arr2 = (cpusetp2); \
size_t __imax = (setsize) / sizeof (__cpu_mask); \
size_t __i; \
for (__i = 0; __i < __imax; ++__i) \
if (__arr1->__bits[__i] != __arr2->__bits[__i]) \
break; \
__i == __imax; })
# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
({ cpu_set_t *__dest = (destset); \
cpu_set_t *__arr1 = (srcset1); \
cpu_set_t *__arr2 = (srcset2); \
size_t __imax = (setsize) / sizeof (__cpu_mask); \
size_t __i; \
for (__i = 0; __i < __imax; ++__i) \
__dest->__bits[__i] = __arr1->__bits[__i] op __arr2->__bits[__i]; \
__dest; })
# define __CPU_ALLOC_SIZE(count) \
((((count) + __NCPUBITS - 1) / __NCPUBITS) * 8)
# define __CPU_ALLOC(count) __sched_cpualloc (count)
# define __CPU_FREE(cpuset) __sched_cpufree (cpuset)
__BEGIN_DECLS
extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp)
__THROW;
extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur;
extern void __sched_cpufree (cpu_set_t *__set) __THROW;
__END_DECLS
# define __CPU_COUNT(cpusetp) \
__sched_cpucount (sizeof (cpu_set_t), cpusetp)
#endif