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Small size and performance improvement in pcacheManageDirtyList() by not

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zeroing the PgHdr.pDirtyNext and PgHdr.pDirtyPrev pointers for PgHdr objects
that are not on the dirty list.

FossilOrigin-Name: 919863b14859d958d6c078097faae02070c7bd082e2814cf3f84bd84921e4419
This commit is contained in:
drh
2017-09-01 12:18:41 +00:00
parent 38688b0b1d
commit f0dae6d0a2
4 changed files with 11 additions and 12 deletions
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2
src/pcache.h
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@@ -43,6 +43,8 @@ struct PgHdr {
i16 nRef; /* Number of users of this page */
PgHdr *pDirtyNext; /* Next element in list of dirty pages */
PgHdr *pDirtyPrev; /* Previous element in list of dirty pages */
/* NB: pDirtyNext and pDirtyPrev are undefined if the
** PgHdr object is not dirty */
};
/* Bit values for PgHdr.flags */