From: FRIGN <dev@frign.de>
Date: Mon, 23 Jun 2014 14:51:51 +0000 (+0200)
Subject: Use monotonic clock to prevent timing issues
X-Git-Url: https://git.xinqibao.xyz/st.git/commitdiff_plain/5edeec1b20fcb5900d4f1408594d1e76b6c544f0?hp=5edeec1b20fcb5900d4f1408594d1e76b6c544f0

Use monotonic clock to prevent timing issues

This patch replaces the gettimeofday()/timeval-system with
uses of clock_gettime() with a monolithic clock and timespec-structs.
gettimeofday() is not accurate and prone to jumps and POSIX.1-2008
marks it as obsolete. Read more here [0].

The patch should speak for itself and decreases the binary
size for me by almost 200K(!).

[0]: http://blog.habets.pp.se/2010/09/gettimeofday-should-never-be-used-to-measure-time

Signed-off-by: Roberto E. Vargas Caballero <k0ga@shike2.com>
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