diff options
Diffstat (limited to 'include/haproxy/cpuset.h')
-rw-r--r-- | include/haproxy/cpuset.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/include/haproxy/cpuset.h b/include/haproxy/cpuset.h new file mode 100644 index 0000000..87c4ece --- /dev/null +++ b/include/haproxy/cpuset.h @@ -0,0 +1,76 @@ +#ifndef _HAPROXY_CPUSET_H +#define _HAPROXY_CPUSET_H + +#include <haproxy/cpuset-t.h> + +extern struct cpu_map *cpu_map; + +/* Unset all indexes in <set>. + */ +void ha_cpuset_zero(struct hap_cpuset *set); + +/* Set <cpu> index in <set> if not present. + * Returns 0 on success otherwise non-zero. + */ +int ha_cpuset_set(struct hap_cpuset *set, int cpu); + +/* Clear <cpu> index in <set> if present. + * Returns 0 on success otherwise non-zero. + */ +int ha_cpuset_clr(struct hap_cpuset *set, int cpu); + +/* Bitwise and equivalent operation between <src> and <dst> stored in <dst>. + */ +void ha_cpuset_and(struct hap_cpuset *dst, struct hap_cpuset *src); + +/* Bitwise OR equivalent operation between <src> and <dst> stored in <dst>. + */ +void ha_cpuset_or(struct hap_cpuset *dst, struct hap_cpuset *src); + +/* returns non-zero if CPU index <cpu> is set in <set>, otherwise 0. */ +int ha_cpuset_isset(const struct hap_cpuset *set, int cpu); + +/* Returns the count of set index in <set>. + */ +int ha_cpuset_count(const struct hap_cpuset *set); + +/* Returns the first index set plus one in <set> starting from the lowest. + * Returns 0 if no index set. + * Do not forget to subtract the result by one if using it for set/clr. + */ +int ha_cpuset_ffs(const struct hap_cpuset *set); + +/* Copy <src> set into <dst>. + */ +void ha_cpuset_assign(struct hap_cpuset *dst, struct hap_cpuset *src); + +/* Returns the biggest index plus one usable on the platform. + */ +int ha_cpuset_size(void); + +/* Detects CPUs that are bound to the current process. Returns the number of + * CPUs detected or 0 if the detection failed. + */ +int ha_cpuset_detect_bound(struct hap_cpuset *set); + +/* Parse cpu sets. Each CPU set is either a unique number between 0 and + * ha_cpuset_size() - 1 or a range with two such numbers delimited by a dash + * ('-'). Each CPU set can be a list of unique numbers or ranges separated by + * a comma. It is also possible to specify multiple cpu numbers or ranges in + * distinct argument in <args>. On success, it returns 0, otherwise it returns + * 1 with an error message in <err>. + */ +int parse_cpu_set(const char **args, struct hap_cpuset *cpu_set, char **err); + +/* Parse a linux cpu map string representing to a numeric cpu mask map + * The cpu map string is a list of 4-byte hex strings separated by commas, with + * most-significant byte first, one bit per cpu number. + */ +void parse_cpumap(char *cpumap_str, struct hap_cpuset *cpu_set); + +/* Returns true if at least one cpu-map directive was configured, otherwise + * false. + */ +int cpu_map_configured(void); + +#endif /* _HAPROXY_CPUSET_H */ |