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Code Issues

When GFIX is invoked with -MEND option it marks blobs and records with

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inconsistencies as damaged (rhd_damaged). When later GBAK is invoked with
-IGNORE option it instructs the engine to skip such marked blobs and records
to be able to create backup of the database.

However, for damaged BLOBs the engine returns inconsistent statistics via
isc_blob_info call making GBAK to fail defeating the purpose of GFIX -MEND.
This problem is present in all Firebird versions.

This patch corrects the above behavior, and makes the engine return damaged
blobs to GBAK with -IGNORE option as consistent zero-length blobs permitting
database backup to succeed.
This commit is contained in:
skidder 2008-07-05 19:31:52 +00:00
parent 6249fcf17e
commit b9571d48ee
1 changed files with 4 additions and 0 deletions
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4
src/jrd/blb.cpp
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@ -1360,7 +1360,11 @@ blb* BLB_open2(thread_db* tdbb,
if (blob->blb_flags & BLB_damaged) {
if (!(dbb->dbb_flags & DBB_damaged))
IBERROR(194); // msg 194 blob not found
blob->blb_flags |= BLB_eof;
blob->blb_count = 0;
blob->blb_max_segment = 0;
blob->blb_length = 0;
return blob;
}