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571573874a
The new function "print_cpu_set()" will print cpu sets in a human-friendly way, with commas and dashes for intervals. The goal is to keep them compact enough.
78 lines
2.7 KiB
C
78 lines
2.7 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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extern struct cpu_map *cpu_map;
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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, struct hap_cpuset *src);
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/* Bitwise OR equivalent operation between <src> and <dst> stored in <dst>.
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*/
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void ha_cpuset_or(struct hap_cpuset *dst, struct hap_cpuset *src);
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/* returns non-zero if CPU index <cpu> is set in <set>, otherwise 0. */
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int ha_cpuset_isset(const struct hap_cpuset *set, int cpu);
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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 subtract 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, struct hap_cpuset *src);
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/* returns true if the sets are equal */
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int ha_cpuset_isequal(const 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(void);
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/* Parse cpu sets. Each CPU set is either a unique number between 0 and
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* ha_cpuset_size() - 1 or a range with two such numbers delimited by a dash
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* ('-'). Each CPU set can be a list of unique numbers or ranges separated by
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* a comma. It is also possible to specify multiple cpu numbers or ranges in
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* distinct argument in <args>. On success, it returns 0, otherwise it returns
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* 1 with an error message in <err>.
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*/
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int parse_cpu_set(const char **args, struct hap_cpuset *cpu_set, char **err);
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/* Print a cpu-set as compactly as possible and returns the output length.
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* Returns >size if it cannot emit anything due to length constraints, in which
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* case it will match what is at least needed to go further, and may return 0
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* for an empty set. It will emit series of comma-delimited ranges in the form
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* "beg[-end]".
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*/
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int print_cpu_set(char *output, size_t size, const struct hap_cpuset *cpu_set);
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/* Parse a linux cpu map string representing to a numeric cpu mask map
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* The cpu map string is a list of 4-byte hex strings separated by commas, with
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* most-significant byte first, one bit per cpu number.
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*/
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void parse_cpumap(char *cpumap_str, struct hap_cpuset *cpu_set);
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#endif /* _HAPROXY_CPUSET_H */
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