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Overview
| Comment: | Fix an obscure memory leak that can follow an IO error. (CVS 5956) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
8271229c66c72c344ad7afb901b88d9c |
| User & Date: | danielk1977 2008-11-26 07:40:30 |
Context
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2008-11-26
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| 13:44 | Fix the test condition for the test cases added to prevent regressions of ticket #3508. (CVS 5957) (check-in: 4e94aa3b user: drh tags: trunk) | |
| 07:40 | Fix an obscure memory leak that can follow an IO error. (CVS 5956) (check-in: 8271229c user: danielk1977 tags: trunk) | |
| 07:25 | Fix a couple of assert() failures provoked by running with a small default cache-size (64 pages). (CVS 5955) (check-in: 1a66481a user: danielk1977 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 1.541 2008/11/26 07:25:52 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" ................................................................................ assert( cursorHoldsMutex(pCur) ); memcpy(pTempCur, pCur, sizeof(BtCursor)); pTempCur->pNext = 0; pTempCur->pPrev = 0; for(i=0; i<=pTempCur->iPage; i++){ sqlite3PagerRef(pTempCur->apPage[i]->pDbPage); } } /* ** Delete a temporary cursor such as was made by the CreateTemporaryCursor() ** function above. */ void sqlite3BtreeReleaseTempCursor(BtCursor *pCur){ int i; assert( cursorHoldsMutex(pCur) ); for(i=0; i<=pCur->iPage; i++){ sqlite3PagerUnref(pCur->apPage[i]->pDbPage); } } /* ** Make sure the BtCursor* given in the argument has a valid ** BtCursor.info structure. If it is not already valid, call ** sqlite3BtreeParseCell() to fill it in. ** |
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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 1.542 2008/11/26 07:40:30 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" ................................................................................ assert( cursorHoldsMutex(pCur) ); memcpy(pTempCur, pCur, sizeof(BtCursor)); pTempCur->pNext = 0; pTempCur->pPrev = 0; for(i=0; i<=pTempCur->iPage; i++){ sqlite3PagerRef(pTempCur->apPage[i]->pDbPage); } assert( pTempCur->pKey==0 ); } /* ** Delete a temporary cursor such as was made by the CreateTemporaryCursor() ** function above. */ void sqlite3BtreeReleaseTempCursor(BtCursor *pCur){ int i; assert( cursorHoldsMutex(pCur) ); for(i=0; i<=pCur->iPage; i++){ sqlite3PagerUnref(pCur->apPage[i]->pDbPage); } sqlite3_free(pCur->pKey); } /* ** Make sure the BtCursor* given in the argument has a valid ** BtCursor.info structure. If it is not already valid, call ** sqlite3BtreeParseCell() to fill it in. ** |
Changes to test/ioerr.test.
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# This file implements regression tests for SQLite library. The # focus of this file is testing for correct handling of I/O errors # such as writes failing because the disk is full. # # The tests in this file use special facilities that are only # available in the SQLite test fixture. # # $Id: ioerr.test,v 1.41 2008/07/12 14:52:20 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # If SQLITE_DEFAULT_AUTOVACUUM is set to true, then a simulated IO error # on the 8th IO operation in the SQL script below doesn't report an error. # ................................................................................ INSERT INTO t1 VALUES(randomblob(100)); INSERT INTO t1 VALUES(randomblob(100)); INSERT INTO t1 VALUES(randomblob(100)); INSERT INTO t1 VALUES(randomblob(100)); INSERT INTO t1 VALUES(randomblob(100)); COMMIT; } finish_test |
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# This file implements regression tests for SQLite library. The # focus of this file is testing for correct handling of I/O errors # such as writes failing because the disk is full. # # The tests in this file use special facilities that are only # available in the SQLite test fixture. # # $Id: ioerr.test,v 1.42 2008/11/26 07:40:30 danielk1977 Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # If SQLITE_DEFAULT_AUTOVACUUM is set to true, then a simulated IO error # on the 8th IO operation in the SQL script below doesn't report an error. # ................................................................................ INSERT INTO t1 VALUES(randomblob(100)); INSERT INTO t1 VALUES(randomblob(100)); INSERT INTO t1 VALUES(randomblob(100)); INSERT INTO t1 VALUES(randomblob(100)); INSERT INTO t1 VALUES(randomblob(100)); COMMIT; } do_ioerr_test ioerr-15 -tclprep { db eval { BEGIN; PRAGMA cache_size = 10; CREATE TABLE t1(a); CREATE INDEX i1 ON t1(a); CREATE TABLE t2(a); } for {set ii 1} {$ii < 100} {incr ii} { set v [string range [string repeat [format %.3d $ii] 200] 0 220] db eval {INSERT INTO t1 VALUES($v)} } db eval { DELETE FROM t1 WHERE oid > 85; COMMIT; } } -sqlbody { BEGIN; INSERT INTO t2 VALUES(randstr(22000,22000)); DELETE FROM t1 WHERE oid = 83; COMMIT; } finish_test |