linux-kernel - [PATCH 6/7] perf util: Add findnew method to intlist

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Date:	Sat, 28 Sep 2013 13:13:03 -0600
From:	David Ahern <dsahern@...il.com>
To:	acme@...stprotocols.net, linux-kernel@...r.kernel.org
Cc:	David Ahern <dsahern@...il.com>, Ingo Molnar <mingo@...nel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung.kim@....com>,
	Stephane Eranian <eranian@...gle.com>
Subject: [PATCH 6/7] perf util: Add findnew method to intlist

Similar to other findnew based methods if the requested
object is not found, add it to the list.

Signed-off-by: David Ahern <dsahern@...il.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung.kim@....com>
Cc: Stephane Eranian <eranian@...gle.com>
---
 tools/perf/util/intlist.c |   10 ++++++++++
 tools/perf/util/intlist.h |    1 +
 2 files changed, 11 insertions(+)

diff --git a/tools/perf/util/intlist.c b/tools/perf/util/intlist.c
index 826d7b3..60d7da5 100644
--- a/tools/perf/util/intlist.c
+++ b/tools/perf/util/intlist.c
@@ -74,6 +74,16 @@ struct int_node *intlist__find(struct intlist *ilist, int i)
 	return node;
 }
 
+struct int_node *intlist__findnew(struct intlist *ilist, int i)
+{
+	struct int_node *node = intlist__find(ilist, i);
+
+	if ((node == NULL) && (intlist__add(ilist, i) == 0))
+		node = intlist__find(ilist, i);
+
+	return node;
+}
+
 static int intlist__parse_list(struct intlist *ilist, const char *s)
 {
 	char *sep;
diff --git a/tools/perf/util/intlist.h b/tools/perf/util/intlist.h
index 0eb00ac..aa6877d 100644
--- a/tools/perf/util/intlist.h
+++ b/tools/perf/util/intlist.h
@@ -24,6 +24,7 @@ int intlist__add(struct intlist *ilist, int i);
 
 struct int_node *intlist__entry(const struct intlist *ilist, unsigned int idx);
 struct int_node *intlist__find(struct intlist *ilist, int i);
+struct int_node *intlist__findnew(struct intlist *ilist, int i);
 
 static inline bool intlist__has_entry(struct intlist *ilist, int i)
 {
-- 
1.7.10.1

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