1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef PARSE_CTX_H 3 #define PARSE_CTX_H 1 4 5 #ifdef HAVE_LIBBPF_SUPPORT 6 #include <bpf/hashmap.h> 7 #else 8 #include "util/hashmap.h" 9 #endif 10 11 struct metric_ref; 12 13 struct expr_scanner_ctx { 14 char *user_requested_cpu_list; 15 int runtime; 16 bool system_wide; 17 }; 18 19 struct expr_parse_ctx { 20 struct hashmap *ids; 21 struct expr_scanner_ctx sctx; 22 }; 23 24 struct expr_id_data; 25 26 struct hashmap *ids__new(void); 27 void ids__free(struct hashmap *ids); 28 int ids__insert(struct hashmap *ids, const char *id); 29 /* 30 * Union two sets of ids (hashmaps) and construct a third, freeing ids1 and 31 * ids2. 32 */ 33 struct hashmap *ids__union(struct hashmap *ids1, struct hashmap *ids2); 34 35 struct expr_parse_ctx *expr__ctx_new(void); 36 void expr__ctx_clear(struct expr_parse_ctx *ctx); 37 void expr__ctx_free(struct expr_parse_ctx *ctx); 38 39 void expr__del_id(struct expr_parse_ctx *ctx, const char *id); 40 int expr__add_id(struct expr_parse_ctx *ctx, const char *id); 41 int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val); 42 int expr__add_id_val_source_count(struct expr_parse_ctx *ctx, const char *id, 43 double val, int source_count); 44 int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref); 45 int expr__get_id(struct expr_parse_ctx *ctx, const char *id, 46 struct expr_id_data **data); 47 bool expr__subset_of_ids(struct expr_parse_ctx *haystack, 48 struct expr_parse_ctx *needles); 49 int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id, 50 struct expr_id_data **datap); 51 52 int expr__parse(double *final_val, struct expr_parse_ctx *ctx, 53 const char *expr); 54 55 int expr__find_ids(const char *expr, const char *one, 56 struct expr_parse_ctx *ids); 57 58 double expr_id_data__value(const struct expr_id_data *data); 59 double expr_id_data__source_count(const struct expr_id_data *data); 60 double expr__get_literal(const char *literal, const struct expr_scanner_ctx *ctx); 61 62 #endif 63