xref: /openbmc/linux/tools/perf/util/expr.h (revision 51ad5b54)
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 expr_parse_ctx {
15 	struct hashmap ids;
16 };
17 
18 struct expr_scanner_ctx {
19 	int start_token;
20 	int runtime;
21 };
22 
23 void expr__ctx_init(struct expr_parse_ctx *ctx);
24 void expr__ctx_clear(struct expr_parse_ctx *ctx);
25 int expr__add_id(struct expr_parse_ctx *ctx, const char *id, double val);
26 int expr__get_id(struct expr_parse_ctx *ctx, const char *id, double *val_ptr);
27 int expr__parse(double *final_val, struct expr_parse_ctx *ctx,
28 		const char *expr, int runtime);
29 int expr__find_other(const char *expr, const char *one,
30 		struct expr_parse_ctx *ids, int runtime);
31 
32 #endif
33