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roots: make sure we can never get a uint_max transid

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If we iterate over all roots to find the max transid, but the set of
all roots is empty, we'll get a nonsense number.  Make sure that number
doesn't reach the crawling logic by killing it with an exception.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell 2022-04-28 11:36:46 -04:00
parent 972721016b
commit 8f6f8e4ac2
1 changed files with 2 additions and 0 deletions
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2
src/bees-roots.cc
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@ -229,6 +229,8 @@ BeesRoots::transid_max_nocache()
// transid must be greater than zero, or we did something very wrong
THROW_CHECK1(runtime_error, rv, rv > 0);
// transid must be less than max, or we did something very wrong
THROW_CHECK1(runtime_error, rv, rv < numeric_limits<uint64_t>::max());
return rv;
}