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authorJiri Olsa <jolsa@kernel.org>2019-02-24 22:06:44 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-02-25 16:42:05 +0300
commit145520631130bd64820b591775733256473eac62 (patch)
tree3e857a788cecfd1849031f0295a7bec4bd4cbf72 /tools/perf/util/data.c
parentccb7a71dcea071c7fd68192909c4e54561c88043 (diff)
downloadlinux-145520631130bd64820b591775733256473eac62.tar.xz
perf data: Add perf_data__(create_dir|close_dir) functions
Add perf_data__create_dir() to create nr files inside 'struct perf_data' path directory: int perf_data__create_dir(struct perf_data *data, int nr); and function to close that data: void perf_data__close_dir(struct perf_data *data); Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/20190224190656.30163-9-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/data.c')
-rw-r--r--tools/perf/util/data.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index d008c3973012..005b3909d1dc 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -7,11 +7,58 @@
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
+#include <asm/bug.h>
#include "data.h"
#include "util.h"
#include "debug.h"
+static void close_dir(struct perf_data_file *files, int nr)
+{
+ while (--nr >= 1) {
+ close(files[nr].fd);
+ free(files[nr].path);
+ }
+ free(files);
+}
+
+void perf_data__close_dir(struct perf_data *data)
+{
+ close_dir(data->dir.files, data->dir.nr);
+}
+
+int perf_data__create_dir(struct perf_data *data, int nr)
+{
+ struct perf_data_file *files = NULL;
+ int i, ret = -1;
+
+ files = zalloc(nr * sizeof(*files));
+ if (!files)
+ return -ENOMEM;
+
+ data->dir.files = files;
+ data->dir.nr = nr;
+
+ for (i = 0; i < nr; i++) {
+ struct perf_data_file *file = &files[i];
+
+ if (asprintf(&file->path, "%s/data.%d", data->path, i) < 0)
+ goto out_err;
+
+ ret = open(file->path, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR);
+ if (ret < 0)
+ goto out_err;
+
+ file->fd = ret;
+ }
+
+ return 0;
+
+out_err:
+ close_dir(files, i);
+ return ret;
+}
+
static bool check_pipe(struct perf_data *data)
{
struct stat st;