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This module can be used to manipulate a cpu sets in a platform agnostic way. Use the type cpu_set_t/cpuset_t if available on the platform, or fallback to unsigned long, which limits de facto the maximum cpu index to LONGBITS.
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
#ifndef _HAPROXY_CPUSET_H
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#define _HAPROXY_CPUSET_H
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#include <haproxy/cpuset-t.h>
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/* Unset all indexes in <set>.
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*/
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void ha_cpuset_zero(struct hap_cpuset *set);
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/* Set <cpu> index in <set> if not present.
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* Returns 0 on success otherwise non-zero.
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*/
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int ha_cpuset_set(struct hap_cpuset *set, int cpu);
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/* Clear <cpu> index in <set> if present.
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* Returns 0 on success otherwise non-zero.
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*/
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int ha_cpuset_clr(struct hap_cpuset *set, int cpu);
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/* Bitwise and equivalent operation between <src> and <dst> stored in <dst>.
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*/
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void ha_cpuset_and(struct hap_cpuset *dst, const struct hap_cpuset *src);
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/* Returns the count of set index in <set>.
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*/
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int ha_cpuset_count(const struct hap_cpuset *set);
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/* Returns the first index set plus one in <set> starting from the lowest.
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* Returns 0 if no index set.
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* Do not forget to substract the result by one if using it for set/clr.
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*/
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int ha_cpuset_ffs(const struct hap_cpuset *set);
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/* Copy <src> set into <dst>.
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*/
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void ha_cpuset_assign(struct hap_cpuset *dst, const struct hap_cpuset *src);
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/* Returns the biggest index plus one usable on the platform.
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*/
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int ha_cpuset_size();
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#endif /* _HAPROXY_CPUSET_H */
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