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e565ceb48b
Introduce the `aggr_nr` function to the metric expression parser. `aggr_nr` allows metric formulas to dynamically utilize the number of aggregated targets (`aggr->nr`) instead of relying on the static `source_count` (which represents the static socket or node count). This adds the `AGGR_NR` token to the lexer and parser, updates the expression parsing context helpers to store `aggr_nr`, and feeds `aggr->nr` from the aggregation structure in `prepare_metric`. Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Chun-Tse Shao <ctshao@google.com> Tested-by: Zide Chen <zide.chen@intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Leo Yan <leo.yan@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Yang Li <yang.lee@linux.alibaba.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef PARSE_CTX_H
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#define PARSE_CTX_H 1
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struct hashmap;
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struct metric_ref;
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struct expr_scanner_ctx {
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char *user_requested_cpu_list;
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int runtime;
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bool system_wide;
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bool is_test;
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};
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struct expr_parse_ctx {
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struct hashmap *ids;
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struct expr_scanner_ctx sctx;
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};
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struct expr_id_data;
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struct hashmap *ids__new(void);
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void ids__free(struct hashmap *ids);
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int ids__insert(struct hashmap *ids, const char *id);
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/*
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* Union two sets of ids (hashmaps) and construct a third, freeing ids1 and
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* ids2.
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*/
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struct hashmap *ids__union(struct hashmap *ids1, struct hashmap *ids2);
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struct expr_parse_ctx *expr__ctx_new(void);
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void expr__ctx_clear(struct expr_parse_ctx *ctx);
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void expr__ctx_free(struct expr_parse_ctx *ctx);
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void expr__del_id(struct expr_parse_ctx *ctx, const char *id);
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int expr__add_id(struct expr_parse_ctx *ctx, const char *id);
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int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val);
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int expr__add_id_val_source_count(struct expr_parse_ctx *ctx, const char *id,
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double val, int source_count);
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int expr__add_id_val_source_count_aggr_nr(struct expr_parse_ctx *ctx, const char *id,
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double val, int source_count, int aggr_nr);
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int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref);
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int expr__get_id(struct expr_parse_ctx *ctx, const char *id,
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struct expr_id_data **data);
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bool expr__subset_of_ids(struct expr_parse_ctx *haystack,
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struct expr_parse_ctx *needles);
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int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id,
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struct expr_id_data **datap);
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int expr__parse(double *final_val, struct expr_parse_ctx *ctx,
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const char *expr);
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int expr__find_ids(const char *expr, const char *one,
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struct expr_parse_ctx *ids);
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double expr_id_data__value(const struct expr_id_data *data);
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double expr_id_data__source_count(const struct expr_id_data *data);
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double expr_id_data__aggr_nr(const struct expr_id_data *data);
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double expr__get_literal(const char *literal, const struct expr_scanner_ctx *ctx);
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double expr__has_event(const struct expr_parse_ctx *ctx, bool compute_ids, const char *id);
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double expr__strcmp_cpuid_str(const struct expr_parse_ctx *ctx, bool compute_ids, const char *id);
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#endif
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