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Improvement to a comment. No changes to code.

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FossilOrigin-Name: 486949fc03706e0056439b52ce60931ea4ce0a65e391da7f6287fe13862de251
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drh
2017-11-14 03:42:52 +00:00
parent 2e9b0923ac
commit 8b17ac1919
3 changed files with 10 additions and 7 deletions
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src/wal.c
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@@ -2178,6 +2178,9 @@ static int walIndexReadHdr(Wal *pWal, int *pChanged){
walIndexClose(pWal, 0);
pWal->bShmUnreliable = 0;
assert( pWal->nWiData>0 && pWal->apWiData[0]==0 );
/* walIndexRecover() might have returned SHORT_READ if a concurrent
** writer truncated the WAL out from under it. If that happens, it
** indicates that a writer has fixed the SHM file for us, so retry */
if( rc==SQLITE_IOERR_SHORT_READ ) rc = WAL_RETRY;
}
pWal->exclusiveMode = WAL_NORMAL_MODE;