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From: Jin Yao <yao.jin@linux.intel.com>
To: acme@kernel.org, jolsa@kernel.org, peterz@infradead.org,
	mingo@redhat.com, alexander.shishkin@linux.intel.com
Cc: Linux-kernel@vger.kernel.org, ak@linux.intel.com,
	kan.liang@intel.com, yao.jin@intel.com,
	Jin Yao <yao.jin@linux.intel.com>
Subject: [PATCH v4 2/7] perf util: Get the evsel_streams by evsel_idx
Date: Tue, 26 May 2020 14:09:15 +0800	[thread overview]
Message-ID: <20200526060920.26490-3-yao.jin@linux.intel.com> (raw)
In-Reply-To: <20200526060920.26490-1-yao.jin@linux.intel.com>

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>
---
 tools/perf/util/stream.c | 11 +++++++++++
 tools/perf/util/stream.h |  3 +++
 2 files changed, 14 insertions(+)

diff --git a/tools/perf/util/stream.c b/tools/perf/util/stream.c
index 327a00c27ae2..7f538d1085ef 100644
--- a/tools/perf/util/stream.c
+++ b/tools/perf/util/stream.c
@@ -150,3 +150,14 @@ struct evsel_streams *perf_evlist__create_streams(struct evlist *evlist,
 
 	return es;
 }
+
+struct evsel_streams *evsel_streams_get(struct evsel_streams *es,
+					int nr_evsel, int evsel_idx)
+{
+	for (int i = 0; i < nr_evsel; i++) {
+		if (es[i].evsel_idx == evsel_idx)
+			return &es[i];
+	}
+
+	return NULL;
+}
diff --git a/tools/perf/util/stream.h b/tools/perf/util/stream.h
index a8a0172b4d13..705aa7cde3de 100644
--- a/tools/perf/util/stream.h
+++ b/tools/perf/util/stream.h
@@ -27,4 +27,7 @@ struct evsel_streams *perf_evlist__create_streams(struct evlist *evlist,
 						  int nr_streams_max,
 						  enum stream_type type);
 
+struct evsel_streams *evsel_streams_get(struct evsel_streams *es,
+					int nr_evsel, int evsel_idx);
+
 #endif /* __PERF_STREAM_H */
-- 
2.17.1


  parent reply	other threads:[~2020-05-26  6:11 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-26  6:09 [PATCH v4 0/7] perf: Stream comparison Jin Yao
2020-05-26  6:09 ` [PATCH v4 1/7] perf util: Create streams Jin Yao
2020-05-26  6:09 ` Jin Yao [this message]
2020-05-26  6:09 ` [PATCH v4 3/7] perf util: Compare two streams Jin Yao
2020-05-26  6:09 ` [PATCH v4 4/7] perf util: Link stream pair Jin Yao
2020-05-26  6:09 ` [PATCH v4 5/7] perf util: Calculate the sum of total streams hits Jin Yao
2020-05-26  6:09 ` [PATCH v4 6/7] perf util: Report hot streams Jin Yao
2020-05-26  6:09 ` [PATCH v4 7/7] perf diff: Support hot streams comparison Jin Yao
2020-08-24 23:35 [PATCH v4 0/7] perf: Stream comparison Jin Yao
2020-08-24 23:35 ` [PATCH v4 2/7] perf util: Get the evsel_streams by evsel_idx Jin Yao

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