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gnu/sched.h: fix CPU_* definitions to match glibc

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add CPU_COUNT and cpu_set_t

Change-Id: I9b92cab27a8bb4fda71a99721801013647e02588
Reviewed-on: https://review.haiku-os.org/c/haiku/+/9618
Reviewed-by: Jérôme Duval <[email protected]>
Reviewed-by: waddlesplash <[email protected]>
Tested-by: Commit checker robot <[email protected]>
This commit is contained in:
Jérôme Duval
2025-09-01 08:00:26 +00:00
parent ff9a75a6f5
commit e1e1c75a1f
3 changed files with 35 additions and 9 deletions
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headers/compatibility/gnu/sched.h
+26 -5
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@@ -32,6 +32,7 @@ typedef __haiku_uint32 cpuset_mask;
typedef struct _cpuset {
cpuset_mask bits[_howmany(CPU_SETSIZE, NCPUSETBITS)];
} cpuset_t;
typedef cpuset_t cpu_set_t;
#define _CPUSET_BITSINDEX(cpu) ((cpu) / NCPUSETBITS)
@@ -40,12 +41,32 @@ typedef struct _cpuset {
/* FD_ZERO uses memset */
#include <string.h>
#define CPUSET_ZERO(set) memset((set), 0, sizeof(cpuset_t))
#define CPUSET_SET(cpu, set) ((set)->bits[_CPUSET_BITSINDEX(cpu)] |= _CPUSET_BIT(cpu))
#define CPUSET_CLR(cpu, set) ((set)->bits[_CPUSET_BITSINDEX(cpu)] &= ~_CPUSET_BIT(cpu))
#define CPUSET_ISSET(cpu, set) ((set)->bits[_CPUSET_BITSINDEX(cpu)] & _CPUSET_BIT(cpu))
#define CPUSET_COPY(source, target) (*(target) = *(source))
static inline unsigned int
__cpu_count(cpuset_t *set)
{
unsigned int count = 0;
for (unsigned int i = 0; i < _howmany(CPU_SETSIZE, NCPUSETBITS); i++) {
cpuset_mask mask = set->bits[i];
#if __GNUC__ > 2
count += __builtin_popcount(mask);
#else
while (mask > 0) {
if ((mask & 1) == 1)
count++;
mask >>= 1;
}
#endif
}
return count;
}
#define CPU_ZERO(set) memset((set), 0, sizeof(cpuset_t))
#define CPU_SET(cpu, set) ((set)->bits[_CPUSET_BITSINDEX(cpu)] |= _CPUSET_BIT(cpu))
#define CPU_CLR(cpu, set) ((set)->bits[_CPUSET_BITSINDEX(cpu)] &= ~_CPUSET_BIT(cpu))
#define CPU_ISSET(cpu, set) ((set)->bits[_CPUSET_BITSINDEX(cpu)] & _CPUSET_BIT(cpu))
#define CPU_COPY(source, target) (*(target) = *(source))
#define CPU_COUNT(set) __cpu_count(set)
#ifdef __cplusplus
extern "C" {