linux/tools/perf/util/config.h
Arnaldo Carvalho de Melo d01bd1ac92 perf config: Call perf_config__init() lazily
We check what perf_config__init() does at each perf_config() call,
namely if the static perf_config instance was created, so instead of
bailing out in that case, try to allocate it, bailing if it fails.

Now to get the perf_config() call out of the start of perf's main()
function, doing it also lazily.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Taeung Song <treeze.taeung@gmail.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-4bo45k6ivsmbxpfpdte4orsg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-05-16 16:11:09 -03:00

71 lines
2.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_CONFIG_H
#define __PERF_CONFIG_H
#include <stdbool.h>
#include <linux/list.h>
struct perf_config_item {
char *name;
char *value;
bool from_system_config;
struct list_head node;
};
struct perf_config_section {
char *name;
struct list_head items;
bool from_system_config;
struct list_head node;
};
struct perf_config_set {
struct list_head sections;
};
extern const char *config_exclusive_filename;
typedef int (*config_fn_t)(const char *, const char *, void *);
int perf_default_config(const char *, const char *, void *);
int perf_config(config_fn_t fn, void *);
int perf_config_int(int *dest, const char *, const char *);
int perf_config_u64(u64 *dest, const char *, const char *);
int perf_config_bool(const char *, const char *);
int config_error_nonbool(const char *);
const char *perf_etc_perfconfig(void);
struct perf_config_set *perf_config_set__new(void);
void perf_config_set__delete(struct perf_config_set *set);
int perf_config_set__collect(struct perf_config_set *set, const char *file_name,
const char *var, const char *value);
void perf_config__exit(void);
void perf_config__refresh(void);
/**
* perf_config_sections__for_each - iterate thru all the sections
* @list: list_head instance to iterate
* @section: struct perf_config_section iterator
*/
#define perf_config_sections__for_each_entry(list, section) \
list_for_each_entry(section, list, node)
/**
* perf_config_items__for_each - iterate thru all the items
* @list: list_head instance to iterate
* @item: struct perf_config_item iterator
*/
#define perf_config_items__for_each_entry(list, item) \
list_for_each_entry(item, list, node)
/**
* perf_config_set__for_each - iterate thru all the config section-item pairs
* @set: evlist instance to iterate
* @section: struct perf_config_section iterator
* @item: struct perf_config_item iterator
*/
#define perf_config_set__for_each_entry(set, section, item) \
perf_config_sections__for_each_entry(&set->sections, section) \
perf_config_items__for_each_entry(&section->items, item)
#endif /* __PERF_CONFIG_H */