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mdbx: take in account shrink/growing thresholds while copy-with-compactification.

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Change-Id: Id93e62089819dfcc8cbc83620e0bdd806d8c1950
This commit is contained in:
Leonid Yuriev 2018-11-04 18:57:19 +03:00 committed by Leo Yuriev
parent 83f1effff1
commit 2770e193b6
1 changed files with 31 additions and 2 deletions
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33
src/mdbx.c
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@ -11534,9 +11534,38 @@ static int __cold mdbx_env_compact(MDBX_env *env, MDBX_txn *read_txn,
}
}
/* update signature */
/* Calculate filesize taking in account shrink/growing thresholds */
if (meta->mp_meta.mm_geo.next > meta->mp_meta.mm_geo.now) {
const pgno_t aligned =
pgno_align2os_pgno(env, pgno_add(meta->mp_meta.mm_geo.next,
meta->mp_meta.mm_geo.grow -
meta->mp_meta.mm_geo.next %
meta->mp_meta.mm_geo.grow));
meta->mp_meta.mm_geo.now = aligned;
} else if (meta->mp_meta.mm_geo.next < meta->mp_meta.mm_geo.now) {
meta->mp_meta.mm_geo.now = meta->mp_meta.mm_geo.next;
const pgno_t aligner = meta->mp_meta.mm_geo.grow
? meta->mp_meta.mm_geo.grow
: meta->mp_meta.mm_geo.shrink;
const pgno_t aligned =
pgno_align2os_pgno(env, meta->mp_meta.mm_geo.next + aligner -
meta->mp_meta.mm_geo.next % aligner);
meta->mp_meta.mm_geo.now = aligned;
}
if (meta->mp_meta.mm_geo.now < meta->mp_meta.mm_geo.lower)
meta->mp_meta.mm_geo.now = meta->mp_meta.mm_geo.lower;
if (meta->mp_meta.mm_geo.now > meta->mp_meta.mm_geo.upper)
meta->mp_meta.mm_geo.now = meta->mp_meta.mm_geo.upper;
/* Update signature */
assert(meta->mp_meta.mm_geo.now >= meta->mp_meta.mm_geo.next);
meta->mp_meta.mm_datasync_sign = mdbx_meta_sign(&meta->mp_meta);
return MDBX_SUCCESS;
/* Extend file if required */
return (meta->mp_meta.mm_geo.now != meta->mp_meta.mm_geo.next)
? mdbx_ftruncate(fd, pgno2bytes(env, meta->mp_meta.mm_geo.now))
: MDBX_SUCCESS;
}
/* Copy environment as-is. */