diff options
Diffstat (limited to 'bits')
| -rw-r--r-- | bits/sched.h | 121 |
1 files changed, 4 insertions, 117 deletions
diff --git a/bits/sched.h b/bits/sched.h index c36c569db3..0588f3142e 100644 --- a/bits/sched.h +++ b/bits/sched.h @@ -17,13 +17,13 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#ifndef __need_schedparam +#ifndef _BITS_SCHED_H +#define _BITS_SCHED_H 1 #ifndef _SCHED_H # error "Never include <bits/sched.h> directly; use <sched.h> instead." #endif - /* Scheduling algorithms. */ #define SCHED_OTHER 0 #define SCHED_FIFO 1 @@ -32,120 +32,7 @@ /* Data structure to describe a process' schedulability. */ struct sched_param { - int __sched_priority; + int sched_priority; }; -#endif /* need schedparam */ - -#if !defined __defined_schedparam \ - && (defined __need_schedparam || defined _SCHED_H) -# define __defined_schedparam 1 -/* Data structure to describe a process' schedulability. */ -struct __sched_param - { - int __sched_priority; - }; -# undef __need_schedparam -#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)) - -/* Type for array elements in 'cpu_set_t'. */ -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. */ -# if __GNUC_PREREQ (2, 91) -# define __CPU_ZERO_S(setsize, cpusetp) \ - do __builtin_memset (cpusetp, '\0', setsize); while (0) -# else -# define __CPU_ZERO_S(setsize, cpusetp) \ - do { \ - size_t __i; \ - size_t __imax = (setsize) / sizeof (__cpu_mask); \ - __cpu_mask *__bits = (cpusetp)->__bits; \ - for (__i = 0; __i < __imax; ++__i) \ - __bits[__i] = 0; \ - } while (0) -# endif -# define __CPU_SET_S(cpu, setsize, cpusetp) \ - (__extension__ \ - ({ size_t __cpu = (cpu); \ - __cpu < 8 * (setsize) \ - ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \ - |= __CPUMASK (__cpu)) \ - : 0; })) -# define __CPU_CLR_S(cpu, setsize, cpusetp) \ - (__extension__ \ - ({ size_t __cpu = (cpu); \ - __cpu < 8 * (setsize) \ - ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \ - &= ~__CPUMASK (__cpu)) \ - : 0; })) -# define __CPU_ISSET_S(cpu, setsize, cpusetp) \ - (__extension__ \ - ({ size_t __cpu = (cpu); \ - __cpu < 8 * (setsize) \ - ? ((((const __cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)] \ - & __CPUMASK (__cpu))) != 0 \ - : 0; })) - -# define __CPU_COUNT_S(setsize, cpusetp) \ - __sched_cpucount (setsize, cpusetp) - -# if __GNUC_PREREQ (2, 91) -# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \ - (__builtin_memcmp (cpusetp1, cpusetp2, setsize) == 0) -# else -# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \ - (__extension__ \ - ({ const __cpu_mask *__arr1 = (cpusetp1)->__bits; \ - const __cpu_mask *__arr2 = (cpusetp2)->__bits; \ - size_t __imax = (setsize) / sizeof (__cpu_mask); \ - size_t __i; \ - for (__i = 0; __i < __imax; ++__i) \ - if (__arr1[__i] != __arr2[__i]) \ - break; \ - __i == __imax; })) -# endif - -# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \ - (__extension__ \ - ({ cpu_set_t *__dest = (destset); \ - const __cpu_mask *__arr1 = (srcset1)->__bits; \ - const __cpu_mask *__arr2 = (srcset2)->__bits; \ - size_t __imax = (setsize) / sizeof (__cpu_mask); \ - size_t __i; \ - for (__i = 0; __i < __imax; ++__i) \ - ((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i]; \ - __dest; })) - -# define __CPU_ALLOC_SIZE(count) \ - ((((count) + __NCPUBITS - 1) / __NCPUBITS) * sizeof (__cpu_mask)) -# 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 - -#endif +#endif /* bits/sched.h */ |