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author | David Kalnischkies <david@kalnischkies.de> | 2016-08-12 10:02:28 +0200 |
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committer | David Kalnischkies <david@kalnischkies.de> | 2016-08-12 11:12:10 +0200 |
commit | 379a36f43d3f4db4afa5ad4fb6f79b89824c999c (patch) | |
tree | 03820e0718fe0b888581c1738a61c2c6eba229c2 /apt-pkg/contrib/cdromutl.h | |
parent | 1cb047079aa2c26a8159d100348b7e69a49bc117 (diff) |
ensure a good clock() value for usage and tests
We use clock() as a very cheap way of getting a "random" value, but the
manpage warns that this could return -1, so we should be dealing with
this. Additionally, e.g. on hurd-i386 the value increases only slowly –
to slow for our fast running tests for randomness hence producing the
same range in both samples, so we introduce a simple busy-wait loop (as
clock is counting processor time used by the program) in the test which
delays the second sample just enough making our randomness a bit more
predictable.
Diffstat (limited to 'apt-pkg/contrib/cdromutl.h')
0 files changed, 0 insertions, 0 deletions