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| Comment: | The BTree layer now returns SQLITE_READONLY on an attempt to open a write cursor on a read-only database. Previously, the failure would not occur until there was an attempt to write to the cursor. (CVS 1289) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
8a8be4687bf9fd88952b303f30f93aa6 |
| User & Date: | drh 2004-03-10 13:42:38 |
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2004-03-10
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| 16:32 | * Added rule for rebuilding Makefile from Makefile.in. * Fixed double-slash problem induced by adding DESTDIR support. (CVS 1290) (check-in: 957827e3 user: a.rottmann tags: trunk) | |
| 13:42 | The BTree layer now returns SQLITE_READONLY on an attempt to open a write cursor on a read-only database. Previously, the failure would not occur until there was an attempt to write to the cursor. (CVS 1289) (check-in: 8a8be468 user: drh tags: trunk) | |
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2004-03-09
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| 13:37 | The shell program now ignores extra whitespace at the end of dot-commands. (CVS 1288) (check-in: b6817e99 user: drh tags: trunk) | |
Changes to src/btree.c.
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** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** $Id: btree.c,v 1.102 2004/02/14 17:35:07 drh Exp $ ** ** This file implements a external (disk-based) database using BTrees. ** For a detailed discussion of BTrees, refer to ** ** Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3: ** "Sorting And Searching", pages 473-480. Addison-Wesley ** Publishing Company, Reading, Massachusetts. ................................................................................ ** should be opened with wrFlag==1 even if they never really intend ** to write. ** ** No checking is done to make sure that page iTable really is the ** root page of a b-tree. If it is not, then the cursor acquired ** will not work correctly. */ static int fileBtreeCursor(Btree *pBt, int iTable, int wrFlag, BtCursor **ppCur){ int rc; BtCursor *pCur, *pRing; if( pBt->page1==0 ){ rc = lockBtree(pBt); if( rc!=SQLITE_OK ){ *ppCur = 0; return rc; } } |
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** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** $Id: btree.c,v 1.103 2004/03/10 13:42:38 drh Exp $ ** ** This file implements a external (disk-based) database using BTrees. ** For a detailed discussion of BTrees, refer to ** ** Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3: ** "Sorting And Searching", pages 473-480. Addison-Wesley ** Publishing Company, Reading, Massachusetts. ................................................................................ ** should be opened with wrFlag==1 even if they never really intend ** to write. ** ** No checking is done to make sure that page iTable really is the ** root page of a b-tree. If it is not, then the cursor acquired ** will not work correctly. */ static int fileBtreeCursor(Btree *pBt, int iTable, int wrFlag, BtCursor **ppCur){ int rc; BtCursor *pCur, *pRing; if( pBt->readOnly && wrFlag ){ *ppCur = 0; return SQLITE_READONLY; } if( pBt->page1==0 ){ rc = lockBtree(pBt); if( rc!=SQLITE_OK ){ *ppCur = 0; return rc; } } |