perf evlist: Add perf_evlist__id2sid method to get event ID related data (932a3594) · Commits · 戴 / test

tools/perf/util/evlist.c

+16 −5

Original line number	Diff line number	Diff line
		@@ -337,20 +337,31 @@ static int perf_evlist__id_add_fd(struct perf_evlist *evlist,
		return 0;
		}

		struct perf_evsel perf_evlist__id2evsel(struct perf_evlist evlist, u64 id)
		struct perf_sample_id perf_evlist__id2sid(struct perf_evlist evlist, u64 id)
		{
		struct hlist_head *head;
		struct perf_sample_id *sid;
		int hash;

		if (evlist->nr_entries == 1)
		return perf_evlist__first(evlist);

		hash = hash_64(id, PERF_EVLIST__HLIST_BITS);
		head = &evlist->heads[hash];

		hlist_for_each_entry(sid, head, node)
		if (sid->id == id)
		return sid;

		return NULL;
		}

		struct perf_evsel perf_evlist__id2evsel(struct perf_evlist evlist, u64 id)
		{
		struct perf_sample_id *sid;

		if (evlist->nr_entries == 1)
		return perf_evlist__first(evlist);

		sid = perf_evlist__id2sid(evlist, id);
		if (sid)
		return sid->evsel;

		if (!perf_evlist__sample_id_all(evlist))

+2 −0

Original line number	Diff line number	Diff line
		@@ -78,6 +78,8 @@ void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);

		struct perf_evsel perf_evlist__id2evsel(struct perf_evlist evlist, u64 id);

		struct perf_sample_id perf_evlist__id2sid(struct perf_evlist evlist, u64 id);

		union perf_event perf_evlist__mmap_read(struct perf_evlist self, int idx);

		int perf_evlist__open(struct perf_evlist *evlist);