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perf streams: Get the evsel_streams by evsel_idx
In previous patch, we have created evsel_streams array. This patch returns the specified evsel_streams according to the evsel_idx. Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20201009022845.13141-3-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -162,3 +162,16 @@ struct evlist_streams *evlist__create_streams(struct evlist *evlist,
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return els;
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}
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struct evsel_streams *evsel_streams__entry(struct evlist_streams *els,
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int evsel_idx)
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{
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struct evsel_streams *es = els->ev_streams;
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for (int i = 0; i < els->nr_evsel; i++) {
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if (es[i].evsel_idx == evsel_idx)
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return &es[i];
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}
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return NULL;
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}
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@ -27,4 +27,7 @@ void evlist_streams__delete(struct evlist_streams *els);
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struct evlist_streams *evlist__create_streams(struct evlist *evlist,
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int nr_streams_max);
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struct evsel_streams *evsel_streams__entry(struct evlist_streams *els,
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int evsel_idx);
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#endif /* __PERF_STREAM_H */
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