perf data: Add perf_data_file__switch() helper
authorWang Nan <wangnan0@huawei.com>
Wed, 13 Apr 2016 08:21:05 +0000 (08:21 +0000)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 14 Apr 2016 11:57:54 +0000 (08:57 -0300)
commit040f9915e99e604688c2880e0b1e5b59dbfefa54
tree6858dd65055154cea586357070020614c75333e7
parentb26dc73018d2e3a68cad0cf0bad902a8637f9bdf
perf data: Add perf_data_file__switch() helper

perf_data_file__switch() closes current output file, renames it, then
open a new one to continue recording. It will be used by 'perf record'
to split output into multiple perf.data files.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1460535673-159866-3-git-send-email-wangnan0@huawei.com
Signed-off-by: He Kuang <hekuang@huawei.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/data.c
tools/perf/util/data.h