linux-kernel - [PATCH 05/11] perf ordered

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Date:	Thu, 14 Apr 2016 09:32:21 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org, Wang Nan <wangnan0@...wei.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Zefan Li <lizefan@...wei.com>, pi3orama@....com,
	He Kuang <hekuang@...wei.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 05/11] perf ordered_events: Introduce reinit()

From: Wang Nan <wangnan0@...wei.com>

'perf record' will use this when outputting multiple perf.data files.

Signed-off-by: Wang Nan <wangnan0@...wei.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Zefan Li <lizefan@...wei.com>
Cc: pi3orama@....com
Link: http://lkml.kernel.org/r/1460535673-159866-2-git-send-email-wangnan0@huawei.com
Signed-off-by: He Kuang <hekuang@...wei.com>
[ Split from larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/ordered-events.c | 9 +++++++++
 tools/perf/util/ordered-events.h | 1 +
 2 files changed, 10 insertions(+)

diff --git a/tools/perf/util/ordered-events.c b/tools/perf/util/ordered-events.c
index b1b9e2385f4b..fe84df1875aa 100644
--- a/tools/perf/util/ordered-events.c
+++ b/tools/perf/util/ordered-events.c
@@ -308,3 +308,12 @@ void ordered_events__free(struct ordered_events *oe)
 		free(event);
 	}
 }
+
+void ordered_events__reinit(struct ordered_events *oe)
+{
+	ordered_events__deliver_t old_deliver = oe->deliver;
+
+	ordered_events__free(oe);
+	memset(oe, '\0', sizeof(*oe));
+	ordered_events__init(oe, old_deliver);
+}
diff --git a/tools/perf/util/ordered-events.h b/tools/perf/util/ordered-events.h
index f403991e3bfd..e11468a9a6e4 100644
--- a/tools/perf/util/ordered-events.h
+++ b/tools/perf/util/ordered-events.h
@@ -49,6 +49,7 @@ void ordered_events__delete(struct ordered_events *oe, struct ordered_event *eve
 int ordered_events__flush(struct ordered_events *oe, enum oe_flush how);
 void ordered_events__init(struct ordered_events *oe, ordered_events__deliver_t deliver);
 void ordered_events__free(struct ordered_events *oe);
+void ordered_events__reinit(struct ordered_events *oe);
 
 static inline
 void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size)
-- 
2.5.5