LXR linux/tools/perf/util/expr.h

   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
  52