linux/tools/perf/util/expr.h
Jiri Olsa 0f9b1e124b perf expr: Straighten expr__parse()/expr__find_other() interface
Now that we have a flex parser we don't need to update the parsed string
pointer, so the interface can just be passed the pointer to the
expression instead of a pointer to pointer.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20200228093616.67125-5-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-03-09 21:43:24 -03:00

25 lines
567 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef PARSE_CTX_H
#define PARSE_CTX_H 1
#define EXPR_MAX_OTHER 20
#define MAX_PARSE_ID EXPR_MAX_OTHER
struct parse_id {
const char *name;
double val;
};
struct parse_ctx {
int num_ids;
struct parse_id ids[MAX_PARSE_ID];
};
void expr__ctx_init(struct parse_ctx *ctx);
void expr__add_id(struct parse_ctx *ctx, const char *id, double val);
int expr__parse(double *final_val, struct parse_ctx *ctx, const char *expr);
int expr__find_other(const char *expr, const char *one, const char ***other,
int *num_other);
#endif