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Overview
| Comment: | Do now allow a COMMIT to occur while even a single write operating is in progress. (CVS 6790) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 605520ec04061e389226fbec59f7aedf |
| User & Date: | drh 2009-06-19 22:23:42 |
Context
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2009-06-19
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| 22:50 | Improved documentation on the VFS methods. Ticket #3925. (CVS 6791) check-in: f66fc771 user: drh tags: trunk | |
| 22:23 | Do now allow a COMMIT to occur while even a single write operating is in progress. (CVS 6790) check-in: 605520ec user: drh tags: trunk | |
| 18:32 | Fix the comment on the sqlite3PExpr() subroutine. Ticket #3924. (CVS 6789) check-in: 4bb96db6 user: drh tags: trunk | |
Changes
Changes to src/vdbe.c.
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.856 2009/06/19 14:06:03 drh Exp $ */ #include "sqliteInt.h" #include "vdbeInt.h" /* ** The following global variable is incremented every time a cursor ** moves, either by the OP_SeekXX, OP_Next, or OP_Prev opcodes. The test ................................................................................ /* If this instruction implements a ROLLBACK and other VMs are ** still running, and a transaction is active, return an error indicating ** that the other VMs must complete first. */ sqlite3SetString(&p->zErrMsg, db, "cannot rollback transaction - " "SQL statements in progress"); rc = SQLITE_BUSY; }else if( turnOnAC && !iRollback && db->writeVdbeCnt>1 ){ /* If this instruction implements a COMMIT and other VMs are writing ** return an error indicating that the other VMs must complete first. */ sqlite3SetString(&p->zErrMsg, db, "cannot commit transaction - " "SQL statements in progress"); rc = SQLITE_BUSY; }else if( desiredAutoCommit!=db->autoCommit ){ |
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** ** Various scripts scan this source file in order to generate HTML ** documentation, headers files, or other derived files. The formatting ** of the code in this file is, therefore, important. See other comments ** in this file for details. If in doubt, do not deviate from existing ** commenting and indentation practices when changing or adding code. ** ** $Id: vdbe.c,v 1.857 2009/06/19 22:23:42 drh Exp $ */ #include "sqliteInt.h" #include "vdbeInt.h" /* ** The following global variable is incremented every time a cursor ** moves, either by the OP_SeekXX, OP_Next, or OP_Prev opcodes. The test ................................................................................ /* If this instruction implements a ROLLBACK and other VMs are ** still running, and a transaction is active, return an error indicating ** that the other VMs must complete first. */ sqlite3SetString(&p->zErrMsg, db, "cannot rollback transaction - " "SQL statements in progress"); rc = SQLITE_BUSY; }else if( turnOnAC && !iRollback && db->writeVdbeCnt>0 ){ /* If this instruction implements a COMMIT and other VMs are writing ** return an error indicating that the other VMs must complete first. */ sqlite3SetString(&p->zErrMsg, db, "cannot commit transaction - " "SQL statements in progress"); rc = SQLITE_BUSY; }else if( desiredAutoCommit!=db->autoCommit ){ |
Changes to test/incrblob.test.
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# # 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: incrblob.test,v 1.23 2008/11/05 16:37:35 drh Exp $ # set testdir [file dirname $argv0] source $testdir/tester.tcl ifcapable {!autovacuum || !pragma || !incrblob} { finish_test ................................................................................ do_test incrblob-6.9 { seek $::blob 0 puts -nonewline $::blob "invocation" flush $::blob } {} # At this point rollback should be illegal (because # there is an open blob channel). But commit is allowed because # the blob is read-only. # do_test incrblob-6.10 { catchsql { ROLLBACK; } db2 } {1 {cannot rollback transaction - SQL statements in progress}} do_test incrblob-6.11 { catchsql { COMMIT; } db2 } {0 {}} do_test incrblob-6.12 { execsql { SELECT * FROM blobs WHERE rowid = 4; } } {} do_test incrblob-6.13 { close $::blob } {} do_test incrblob-6.14 { execsql { SELECT * FROM blobs WHERE rowid = 4; } } {a different invocation} db2 close sqlite3_soft_heap_limit $soft_limit |
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# # 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: incrblob.test,v 1.24 2009/06/19 22:23:42 drh Exp $ # set testdir [file dirname $argv0] source $testdir/tester.tcl ifcapable {!autovacuum || !pragma || !incrblob} { finish_test ................................................................................ do_test incrblob-6.9 { seek $::blob 0 puts -nonewline $::blob "invocation" flush $::blob } {} # At this point rollback should be illegal (because # there is an open blob channel). But commit is also illegal because # the open blob is read-write. # do_test incrblob-6.10 { catchsql { ROLLBACK; } db2 } {1 {cannot rollback transaction - SQL statements in progress}} do_test incrblob-6.11 { catchsql { COMMIT; } db2 } {1 {cannot commit transaction - SQL statements in progress}} do_test incrblob-6.12 { execsql { SELECT * FROM blobs WHERE rowid = 4; } } {} do_test incrblob-6.13 { close $::blob } {} do_test incrblob-6.14 { catchsql { COMMIT; } db2 } {0 {}} do_test incrblob-6.15 { execsql { SELECT * FROM blobs WHERE rowid = 4; } } {a different invocation} db2 close sqlite3_soft_heap_limit $soft_limit |