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Fix for #2854. "BEGIN EXCLUSIVE" excludes other shared cache users from using the database. (CVS 4642)

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FossilOrigin-Name: 2e59b1d07ee422bd799b5b7aeea44ebc998d9481
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danielk1977
2007-12-21 04:47:25 +00:00
parent 9892c5d1f4
commit 641b0f4ffa
5 changed files with 185 additions and 12 deletions
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3
src/btreeInt.h
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@@ -9,7 +9,7 @@
** May you share freely, never taking more than you give.
**
*************************************************************************
** $Id: btreeInt.h,v 1.14 2007/12/07 18:55:28 drh Exp $
** $Id: btreeInt.h,v 1.15 2007/12/21 04:47:26 danielk1977 Exp $
**
** This file implements a external (disk-based) database using BTrees.
** For a detailed discussion of BTrees, refer to
@@ -395,6 +395,7 @@ struct BtShared {
int nRef; /* Number of references to this structure */
BtShared *pNext; /* Next on a list of sharable BtShared structs */
BtLock *pLock; /* List of locks held on this shared-btree struct */
Btree *pExclusive; /* Btree with an EXCLUSIVE lock on the whole db */
#endif
};