1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef PARSE_CTX_H 3 #define PARSE_CTX_H 1 4 5 // There are fixes that need to land upstream before we can use libbpf's headers, 6 // for now use our copy uncoditionally, since the data structures at this point 7 // are exactly the same, no problem. 8 //#ifdef HAVE_LIBBPF_SUPPORT 9 //#include <bpf/hashmap.h> 10 //#else 11 #include "util/hashmap.h" 12 //#endif 13 14 struct metric_ref; 15 16 struct expr_id { 17 char *id; 18 struct expr_id *parent; 19 }; 20 21 struct expr_parse_ctx { 22 struct hashmap ids; 23 struct expr_id *parent; 24 }; 25 26 struct expr_id_data; 27 28 struct expr_scanner_ctx { 29 int start_token; 30 int runtime; 31 }; 32 33 void expr__ctx_init(struct expr_parse_ctx *ctx); 34 void expr__ctx_clear(struct expr_parse_ctx *ctx); 35 void expr__del_id(struct expr_parse_ctx *ctx, const char *id); 36 int expr__add_id(struct expr_parse_ctx *ctx, const char *id); 37 int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val); 38 int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref); 39 int expr__get_id(struct expr_parse_ctx *ctx, const char *id, 40 struct expr_id_data **data); 41 int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id, 42 struct expr_id_data **datap); 43 int expr__parse(double *final_val, struct expr_parse_ctx *ctx, 44 const char *expr, int runtime); 45 int expr__find_other(const char *expr, const char *one, 46 struct expr_parse_ctx *ids, int runtime); 47 48 double expr_id_data__value(const struct expr_id_data *data); 49 struct expr_id *expr_id_data__parent(struct expr_id_data *data); 50 51 #endif 52