Linux kernel mirror (for testing)
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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
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 union {
28 double val;
29 struct {
30 const char *metric_name;
31 const char *metric_expr;
32 bool counted;
33 } ref;
34 struct expr_id *parent;
35 };
36
37 bool is_ref;
38};
39
40struct expr_scanner_ctx {
41 int start_token;
42 int runtime;
43};
44
45void expr__ctx_init(struct expr_parse_ctx *ctx);
46void expr__ctx_clear(struct expr_parse_ctx *ctx);
47void expr__del_id(struct expr_parse_ctx *ctx, const char *id);
48int expr__add_id(struct expr_parse_ctx *ctx, const char *id);
49int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val);
50int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref);
51int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
52 struct expr_id_data **data);
53int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id,
54 struct expr_id_data **datap);
55int expr__parse(double *final_val, struct expr_parse_ctx *ctx,
56 const char *expr, int runtime);
57int expr__find_other(const char *expr, const char *one,
58 struct expr_parse_ctx *ids, int runtime);
59
60#endif