tree 673781cf989df98d3c03922dafc41d6ddf7cfb96
parent 223cc4b0e7d726fecb8edaafd6e5894791755d8a
author Karl Wiberg <kwiberg@webrtc.org> 1527110438 +0200
committer Commit Bot <commit-bot@chromium.org> 1527117304 +0000

RTC_LOG_* macros: Implement argument passing with a single variadic call

Instead of making multiple calls to the std::stringstream << operator,
collect all the arguments and make a single printf-like variadic call
under the hood.

Besides reducing our reliance on iostreams, this makes each RTC_LOG_*
call site smaller; in aggregate, this reduces the size of
libjingle_peerconnection_so.so by 28-32 kB.

A quick benchmark indicates that this change makes log statements
a few percent slower.

Bug: webrtc:8982, webrtc:9185
Change-Id: I3137a4dd8ac510e8d910acccb0c97ce4fffb61c9
Reviewed-on: https://webrtc-review.googlesource.com/75440
Commit-Queue: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Jonas Olsson <jonasolsson@webrtc.org>
Reviewed-by: Oskar Sundbom <ossu@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23375}