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From:   Jiri Olsa <jolsa@kernel.org>
To:     Arnaldo Carvalho de Melo <acme@kernel.org>
Cc:     lkml <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Andi Kleen <ak@linux.intel.com>,
        Stephane Eranian <eranian@google.com>,
        Alexey Budankov <alexey.budankov@linux.intel.com>
Subject: [PATCH 10/14] perf data: Add perf_data__update_dir function
Date:   Sun,  3 Feb 2019 16:30:14 +0100
Message-Id: <20190203153018.9650-11-jolsa@kernel.org>
In-Reply-To: <20190203153018.9650-1-jolsa@kernel.org>
References: <20190203153018.9650-1-jolsa@kernel.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Adding perf_data__update_dir function to update
size for every file within the perf.data directory.

Link: http://lkml.kernel.org/n/tip-3ii12l48u4tyvrzxo1797w7e@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/data.c | 20 ++++++++++++++++++++
 tools/perf/util/data.h |  1 +
 2 files changed, 21 insertions(+)

diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index 59c052454fac..fbe46dab8dbd 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -124,6 +124,26 @@ static int perf_data__open_dir(struct perf_data *data)
 	return ret;
 }
 
+int perf_data__update_dir(struct perf_data *data)
+{
+	int i;
+
+	if (WARN_ON(!data->is_dir))
+		return -EINVAL;
+
+	for (i = 0; i < data->dir.nr; i++) {
+		struct perf_data_file *file = &data->dir.files[i];
+		struct stat st;
+
+		if (fstat(file->fd, &st))
+			return -1;
+
+		file->size = st.st_size;
+	}
+
+	return 0;
+}
+
 static bool check_pipe(struct perf_data *data)
 {
 	struct stat st;
diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h
index a1edf7e03a71..bd7affb69dba 100644
--- a/tools/perf/util/data.h
+++ b/tools/perf/util/data.h
@@ -78,4 +78,5 @@ int perf_data__switch(struct perf_data *data,
 
 int perf_data__create_dir(struct perf_data *data, int nr);
 void perf_data__free_dir(struct perf_data *data);
+int perf_data__update_dir(struct perf_data *data);
 #endif /* __PERF_DATA_H */
-- 
2.17.2