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mdbx: alter rule for wipe of steady-point.

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Change-Id: Idac7ffd5e89d282aebcbe7382e20a960d5b39f25
This commit is contained in:
Leonid Yuriev 2019-12-19 22:56:46 +03:00
parent cddf9ca8a2
commit 78e146692a
1 changed files with 7 additions and 5 deletions
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12
src/elements/core.c
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@ -4275,15 +4275,17 @@ skip_cache:
rc = MDBX_RESULT_TRUE;
const pgno_t autosync_threshold = *env->me_autosync_threshold;
const uint64_t autosync_period = *env->me_autosync_period;
/* wipe the last steady-point if:
/* wipe the last steady-point if one of:
* - UTTERLY_NOSYNC mode AND auto-sync threshold is NOT specified
* otherwise, make a new steady-point if:
* - UTTERLY_NOSYNC mode AND free space at steady-point is exhausted
* otherwise, make a new steady-point if one of:
* - auto-sync threshold is specified and reached;
* - OR upper limit of database size is reached;
* - OR database is full (with the current file size)
* - upper limit of database size is reached;
* - database is full (with the current file size)
* AND auto-sync threshold it NOT specified */
if (F_ISSET(env->me_flags, MDBX_UTTERLY_NOSYNC) &&
(autosync_threshold | autosync_period) == 0) {
((autosync_threshold | autosync_period) == 0 ||
next >= steady->mm_geo.now)) {
/* wipe steady checkpoint in MDBX_UTTERLY_NOSYNC mode
* without any auto-sync treshold(s). */
rc = mdbx_wipe_steady(env, oldest);