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Overview
| Comment: | Remove superfluous code from btree.c. (CVS 4964) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 40173010706fb52ecd60197ce6e97d51 |
| User & Date: | drh 2008-04-03 21:46:57 |
Context
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2008-04-04
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| 12:21 | Fix the TCL interface so that it does not use unpublished interfaces. (CVS 4965) check-in: 046a98a8 user: drh tags: trunk | |
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2008-04-03
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| 21:46 | Remove superfluous code from btree.c. (CVS 4964) check-in: 40173010 user: drh tags: trunk | |
| 21:42 | Make sure the zTail return from sqlite3_prepare() is initialized even if there is a malloc failure. (CVS 4963) check-in: 040cffe2 user: drh tags: trunk | |
Changes
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 1.450 2008/04/02 18:33:08 drh Exp $ ** ** This file implements a external (disk-based) database using BTrees. ** See the header comment on "btreeInt.h" for additional information. ** Including a description of file format and an overview of operation. */ #include "btreeInt.h" ................................................................................ /* ** Advance the cursor to the next entry in the database. If ** successful then set *pRes=0. If the cursor ** was already pointing to the last entry in the database before ** this routine was called, then set *pRes=1. */ static int btreeNext(BtCursor *pCur, int *pRes){ int rc; MemPage *pPage; assert( cursorHoldsMutex(pCur) ); rc = restoreOrClearCursorPosition(pCur); if( rc!=SQLITE_OK ){ return rc; ................................................................................ *pRes = 0; if( pPage->leaf ){ return SQLITE_OK; } rc = moveToLeftmost(pCur); return rc; } int sqlite3BtreeNext(BtCursor *pCur, int *pRes){ int rc; assert( cursorHoldsMutex(pCur) ); rc = btreeNext(pCur, pRes); return rc; } /* ** Step the cursor to the back to the previous entry in the database. If ** successful then set *pRes=0. If the cursor ** was already pointing to the first entry in the database before ** this routine was called, then set *pRes=1. */ static int btreePrevious(BtCursor *pCur, int *pRes){ int rc; Pgno pgno; MemPage *pPage; assert( cursorHoldsMutex(pCur) ); rc = restoreOrClearCursorPosition(pCur); if( rc!=SQLITE_OK ){ ................................................................................ }else{ rc = SQLITE_OK; } } *pRes = 0; return rc; } int sqlite3BtreePrevious(BtCursor *pCur, int *pRes){ int rc; assert( cursorHoldsMutex(pCur) ); rc = btreePrevious(pCur, pRes); return rc; } /* ** Allocate a new page from the database file. ** ** The new page is marked as dirty. (In other words, sqlite3PagerWrite() ** has already been called on the new page.) The new page has also ** been referenced and the calling routine is responsible for calling |
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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 1.451 2008/04/03 21:46:57 drh Exp $ ** ** This file implements a external (disk-based) database using BTrees. ** See the header comment on "btreeInt.h" for additional information. ** Including a description of file format and an overview of operation. */ #include "btreeInt.h" ................................................................................ /* ** Advance the cursor to the next entry in the database. If ** successful then set *pRes=0. If the cursor ** was already pointing to the last entry in the database before ** this routine was called, then set *pRes=1. */ int sqlite3BtreeNext(BtCursor *pCur, int *pRes){ int rc; MemPage *pPage; assert( cursorHoldsMutex(pCur) ); rc = restoreOrClearCursorPosition(pCur); if( rc!=SQLITE_OK ){ return rc; ................................................................................ *pRes = 0; if( pPage->leaf ){ return SQLITE_OK; } rc = moveToLeftmost(pCur); return rc; } /* ** Step the cursor to the back to the previous entry in the database. If ** successful then set *pRes=0. If the cursor ** was already pointing to the first entry in the database before ** this routine was called, then set *pRes=1. */ int sqlite3BtreePrevious(BtCursor *pCur, int *pRes){ int rc; Pgno pgno; MemPage *pPage; assert( cursorHoldsMutex(pCur) ); rc = restoreOrClearCursorPosition(pCur); if( rc!=SQLITE_OK ){ ................................................................................ }else{ rc = SQLITE_OK; } } *pRes = 0; return rc; } /* ** Allocate a new page from the database file. ** ** The new page is marked as dirty. (In other words, sqlite3PagerWrite() ** has already been called on the new page.) The new page has also ** been referenced and the calling routine is responsible for calling |