On Wed, Apr 13, 2016 at 08:21:05AM +0000, Wang Nan wrote: > 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 <wangn...@huawei.com> > Signed-off-by: He Kuang <heku...@huawei.com> > Cc: Arnaldo Carvalho de Melo <a...@redhat.com> > Cc: Jiri Olsa <jo...@kernel.org> > Cc: Masami Hiramatsu <masami.hiramatsu...@hitachi.com> > Cc: Namhyung Kim <namhy...@kernel.org> > Cc: Zefan Li <lize...@huawei.com> > Cc: pi3or...@163.com > --- > tools/perf/util/data.c | 41 +++++++++++++++++++++++++++++++++++++++++ > tools/perf/util/data.h | 11 ++++++++++- > 2 files changed, 51 insertions(+), 1 deletion(-) > > diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c > index 1921942..be835161 100644 > --- a/tools/perf/util/data.c > +++ b/tools/perf/util/data.c > @@ -136,3 +136,44 @@ ssize_t perf_data_file__write(struct perf_data_file > *file, > { > return writen(file->fd, buf, size); > } > + > +int perf_data_file__switch(struct perf_data_file *file, > + const char *postfix, > + size_t pos, bool at_exit)
could you please rename at_exit to reopen I guess you follow the record object's at_exit naming, but 'reopen' seems more clear to me jirka