1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef PARSE_CTX_H
 3#define PARSE_CTX_H 1
 4
 5#define EXPR_MAX_OTHER 15
 6#define MAX_PARSE_ID EXPR_MAX_OTHER
 
 
 
 
 
 
 7
 8struct parse_id {
 9	const char *name;
10	double val;
 
 
11};
12
13struct parse_ctx {
14	int num_ids;
15	struct parse_id ids[MAX_PARSE_ID];
16};
17
18void expr__ctx_init(struct parse_ctx *ctx);
19void expr__add_id(struct parse_ctx *ctx, const char *id, double val);
20#ifndef IN_EXPR_Y
21int expr__parse(double *final_val, struct parse_ctx *ctx, const char **pp);
22#endif
23int expr__find_other(const char *p, const char *one, const char ***other,
24		int *num_other);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
25
26#endif

 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 unconditionally, 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
14struct metric_ref;
15
16struct expr_id {
17	char		*id;
18	struct expr_id	*parent;
19};
20
21struct expr_parse_ctx {
22	struct hashmap	 ids;
23	struct expr_id	*parent;
24};
25
26struct expr_id_data;
27
28struct expr_scanner_ctx {
29	int start_token;
30	int runtime;
31};
32
33void expr__ctx_init(struct expr_parse_ctx *ctx);
34void expr__ctx_clear(struct expr_parse_ctx *ctx);
35void expr__del_id(struct expr_parse_ctx *ctx, const char *id);
36int expr__add_id(struct expr_parse_ctx *ctx, const char *id);
37int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val);
38int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref);
39int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
40		 struct expr_id_data **data);
41int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id,
42		     struct expr_id_data **datap);
43int expr__parse(double *final_val, struct expr_parse_ctx *ctx,
44		const char *expr, int runtime);
45int expr__find_other(const char *expr, const char *one,
46		struct expr_parse_ctx *ids, int runtime);
47
48double expr_id_data__value(const struct expr_id_data *data);
49struct expr_id *expr_id_data__parent(struct expr_id_data *data);
50
51#endif