tree 3c23a844e894b9fb67a77d2b2d1bf77592664862
parent c6f3f0eb9cd68150371c0c45b84aeb0dc72114c9
author Nicholas Hutchinson <nshutchinson@gmail.com> 1473629774 +0100
committer Eric <eric@efcs.ca> 1473629774 -0600

Flush reporters' output streams after writing a benchmark run (#288)

If a reporter's output stream isn't line-buffered (e.g. it's not writing
to a terminal) then it can be some time before a write to it becomes
visible.

This is problematic if, say, you're wanting to use tail -f to view the
file written to via --benchmark_out. Or if the application crashes,
leaving you with no results.

Addressed by flushing the reporters' output streams whenever we invoke
methods that may write to them.