Adding static perf_evlist__purge function to purge and delete evsels from evlist.
Adding also perf_evlist__for_each_entry_safe which is used by perf_evlist__purge. Link: http://lkml.kernel.org/n/tip-xcwsmyqcxe8zgbpapn27f...@git.kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- tools/perf/lib/evlist.c | 13 +++++++++++++ tools/perf/lib/include/internal/evlist.h | 18 ++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c index b9dd040a6162..1c8a9e283adc 100644 --- a/tools/perf/lib/evlist.c +++ b/tools/perf/lib/evlist.c @@ -107,6 +107,18 @@ perf_evlist__next(struct perf_evlist *evlist, struct perf_evsel *prev) return next; } +static void perf_evlist__purge(struct perf_evlist *evlist) +{ + struct perf_evsel *pos, *n; + + perf_evlist__for_each_entry_safe(evlist, n, pos) { + list_del_init(&pos->node); + perf_evsel__delete(pos); + } + + evlist->nr_entries = 0; +} + void perf_evlist__exit(struct perf_evlist *evlist) { perf_cpu_map__put(evlist->cpus); @@ -120,6 +132,7 @@ void perf_evlist__exit(struct perf_evlist *evlist) void perf_evlist__delete(struct perf_evlist *evlist) { + perf_evlist__purge(evlist); perf_evlist__exit(evlist); free(evlist); } diff --git a/tools/perf/lib/include/internal/evlist.h b/tools/perf/lib/include/internal/evlist.h index 1ca822eeab1d..a5bf13df08dc 100644 --- a/tools/perf/lib/include/internal/evlist.h +++ b/tools/perf/lib/include/internal/evlist.h @@ -82,6 +82,24 @@ void perf_evlist__exit(struct perf_evlist *evlist); #define perf_evlist__for_each_entry_reverse(evlist, evsel) \ __perf_evlist__for_each_entry_reverse(&(evlist)->entries, evsel) +/** + * __perf_evlist__for_each_entry_safe - safely iterate thru all the evsels + * @list: list_head instance to iterate + * @tmp: struct evsel temp iterator + * @evsel: struct evsel iterator + */ +#define __perf_evlist__for_each_entry_safe(list, tmp, evsel) \ + list_for_each_entry_safe(evsel, tmp, list, node) + +/** + * perf_evlist__for_each_entry_safe - safely iterate thru all the evsels + * @evlist: evlist instance to iterate + * @evsel: struct evsel iterator + * @tmp: struct evsel temp iterator + */ +#define perf_evlist__for_each_entry_safe(evlist, tmp, evsel) \ + __perf_evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel) + static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist) { return list_entry(evlist->entries.next, struct perf_evsel, node); -- 2.21.0
