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Overview
Comment: | Simplifications and comment enhancements on btree.c. (CVS 6925) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
5ba880dde8a219543ced6f792c7f9ecd |
User & Date: | drh 2009-07-23 01:44:00.000 |
Context
2009-07-24
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12:35 | Simplifications and comment improvements in pager.c. (CVS 6926) (check-in: 2d2f42ca0a user: drh tags: trunk) | |
2009-07-23
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01:44 | Simplifications and comment enhancements on btree.c. (CVS 6925) (check-in: 5ba880dde8 user: drh tags: trunk) | |
2009-07-22
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18:24 | Modify mksqlite3c.tcl so that it inserts SQLITE_API macros into sqlite3.h. Ticket #3983. (CVS 6924) (check-in: 803ec79f3b user: danielk1977 tags: trunk) | |
Changes
Changes to src/btree.c.
1 2 3 4 5 6 7 8 9 10 11 | /* ** 2004 April 6 ** ** The author disclaims copyright to this source code. In place of ** 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. ** ************************************************************************* | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /* ** 2004 April 6 ** ** The author disclaims copyright to this source code. In place of ** 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 1.701 2009/07/23 01:44:00 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" |
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2311 2312 2313 2314 2315 2316 2317 | assert( pBt->pPage1->aData ); releasePage(pBt->pPage1); pBt->pPage1 = 0; } } /* | > | | > > > | | 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 | assert( pBt->pPage1->aData ); releasePage(pBt->pPage1); pBt->pPage1 = 0; } } /* ** If pBt points to an empty file then convert that empty file ** into a new empty database by initializing the first page of ** the database. */ static int newDatabase(BtShared *pBt){ MemPage *pP1; unsigned char *data; int rc; int nPage; assert( sqlite3_mutex_held(pBt->mutex) ); /* The database size has already been measured and cached, so failure ** is impossible here. If the original size measurement failed, then ** processing aborts before entering this routine. */ rc = sqlite3PagerPagecount(pBt->pPager, &nPage); if( NEVER(rc!=SQLITE_OK) || nPage>0 ){ return rc; } pP1 = pBt->pPage1; assert( pP1!=0 ); data = pP1->aData; rc = sqlite3PagerWrite(pP1->pDbPage); if( rc ) return rc; |
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