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Overview
| Comment: | In pageReinit() in btree.c, only reinitialize a page if there are one or more references to it, not including the transient reference held by pager.c. This was always the intent. (CVS 6424) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 0c5a7d1117cfb322d1c89da89e8887b0bb091602 |
| User & Date: | danielk1977 2009-04-01 17:13:51 |
Context
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2009-04-01
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| 18:03 | Remove the unused SQLITE_Vtab flag. (CVS 6425) check-in: fdd78962 user: danielk1977 tags: trunk | |
| 17:13 | In pageReinit() in btree.c, only reinitialize a page if there are one or more references to it, not including the transient reference held by pager.c. This was always the intent. (CVS 6424) check-in: 0c5a7d11 user: danielk1977 tags: trunk | |
| 16:33 | Remove dead code from the UTF conversion routines. Fix a bug in sqlite3_prepare16_v2() in which an out-of-memory error fails to set the statement return pointer to NULL. (CVS 6423) check-in: 94e2f815 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 1.584 2009/04/01 16:25:33 danielk1977 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" ................................................................................ ** ** This routine needs to reset the extra data section at the end of the ** page to agree with the restored data. */ static void pageReinit(DbPage *pData){ MemPage *pPage; pPage = (MemPage *)sqlite3PagerGetExtra(pData); if( pPage->isInit ){ assert( sqlite3_mutex_held(pPage->pBt->mutex) ); pPage->isInit = 0; if( sqlite3PagerPageRefcount(pData)>0 ){ /* pPage might not be a btree page; it might be an overflow page ** or ptrmap page or a free page. In those cases, the following ** call to sqlite3BtreeInitPage() will likely return SQLITE_CORRUPT. ** But no harm is done by this. And it is very important that ** sqlite3BtreeInitPage() be called on every btree page so we make ** the call for every page that comes in for re-initing. */ sqlite3BtreeInitPage(pPage); |
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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 1.585 2009/04/01 17:13:51 danielk1977 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" ................................................................................ ** ** This routine needs to reset the extra data section at the end of the ** page to agree with the restored data. */ static void pageReinit(DbPage *pData){ MemPage *pPage; pPage = (MemPage *)sqlite3PagerGetExtra(pData); assert( sqlite3PagerPageRefcount(pData)>0 ); if( pPage->isInit ){ assert( sqlite3_mutex_held(pPage->pBt->mutex) ); pPage->isInit = 0; if( sqlite3PagerPageRefcount(pData)>1 ){ /* pPage might not be a btree page; it might be an overflow page ** or ptrmap page or a free page. In those cases, the following ** call to sqlite3BtreeInitPage() will likely return SQLITE_CORRUPT. ** But no harm is done by this. And it is very important that ** sqlite3BtreeInitPage() be called on every btree page so we make ** the call for every page that comes in for re-initing. */ sqlite3BtreeInitPage(pPage); |