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Comment:Add some tests for journal_mode=off. Need to come up with a way of handling rollback attempts when there is no journal. (CVS 5034)
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SHA1: e29b870ed0db6360a95fb017f56c0b5388efb437
User & Date: drh 2008-04-19 20:53:26
Context
2008-04-22
14:31
Avoid non-contiguous writes when creating a journal header. (CVS 5035) check-in: dfacddbb user: danielk1977 tags: trunk
2008-04-19
20:53
Add some tests for journal_mode=off. Need to come up with a way of handling rollback attempts when there is no journal. (CVS 5034) check-in: e29b870e user: drh tags: trunk
20:34
Continuing work on journal_mode. Journal_mode=persist now appears to be working, though additional testing would be welcomed. (CVS 5033) check-in: 277e4099 user: drh tags: trunk
Changes
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Changes to src/pager.c. 

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** The pager is used to access a database disk file.  It implements
** atomic commit and rollback through the use of a journal file that
** is separate from the database file.  The pager also implements file
** locking to prevent two processes from writing the same database
** file simultaneously, or one process from reading the database while
** another is writing.
**
** @(#) $Id: pager.c,v 1.430 2008/04/19 20:34:19 drh Exp $
*/
#ifndef SQLITE_OMIT_DISKIO
#include "sqliteInt.h"
#include <assert.h>
#include <string.h>

/*
................................................................................
#endif
    }
    pPager->pDirty = 0;
    pPager->dirtyCache = 0;
    pPager->nRec = 0;
  }else{
    assert( pPager->pInJournal==0 );
    assert( pPager->dirtyCache==0 || pPager->useJournal==0 );
  }

  if( !pPager->exclusiveMode ){
    rc2 = osUnlock(pPager->fd, SHARED_LOCK);
    pPager->state = PAGER_SHARED;
  }else if( pPager->state==PAGER_SYNCED ){
    pPager->state = PAGER_EXCLUSIVE;
................................................................................
    /* If a master journal file name has already been written to the
    ** journal file, then no sync is required. This happens when it is
    ** written, then the process fails to upgrade from a RESERVED to an
    ** EXCLUSIVE lock. The next time the process tries to commit the
    ** transaction the m-j name will have already been written.
    */
    if( !pPager->setMaster ){
      assert( pPager->journalOpen );
      rc = pager_incr_changecounter(pPager, 0);
      if( rc!=SQLITE_OK ) goto sync_exit;
#ifndef SQLITE_OMIT_AUTOVACUUM
      if( nTrunc!=0 ){
        /* If this transaction has made the database smaller, then all pages
        ** being discarded by the truncation must be written to the journal
        ** file.
................................................................................
    }
#endif
    pPager->pStmt = 0;
    pPager->state = PAGER_SHARED;
    pagerLeave(pPager);
    return SQLITE_OK;
  }
  assert( pPager->journalOpen || !pPager->dirtyCache );
  assert( pPager->state==PAGER_SYNCED || !pPager->dirtyCache );
  rc = pager_end_transaction(pPager);
  rc = pager_error(pPager, rc);
  pagerLeave(pPager);
  return rc;
}









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** The pager is used to access a database disk file.  It implements
** atomic commit and rollback through the use of a journal file that
** is separate from the database file.  The pager also implements file
** locking to prevent two processes from writing the same database
** file simultaneously, or one process from reading the database while
** another is writing.
**
** @(#) $Id: pager.c,v 1.431 2008/04/19 20:53:26 drh Exp $
*/
#ifndef SQLITE_OMIT_DISKIO
#include "sqliteInt.h"
#include <assert.h>
#include <string.h>

/*
................................................................................
#endif
    }
    pPager->pDirty = 0;
    pPager->dirtyCache = 0;
    pPager->nRec = 0;
  }else{
    assert( pPager->pInJournal==0 );

  }

  if( !pPager->exclusiveMode ){
    rc2 = osUnlock(pPager->fd, SHARED_LOCK);
    pPager->state = PAGER_SHARED;
  }else if( pPager->state==PAGER_SYNCED ){
    pPager->state = PAGER_EXCLUSIVE;
................................................................................
    /* If a master journal file name has already been written to the
    ** journal file, then no sync is required. This happens when it is
    ** written, then the process fails to upgrade from a RESERVED to an
    ** EXCLUSIVE lock. The next time the process tries to commit the
    ** transaction the m-j name will have already been written.
    */
    if( !pPager->setMaster ){

      rc = pager_incr_changecounter(pPager, 0);
      if( rc!=SQLITE_OK ) goto sync_exit;
#ifndef SQLITE_OMIT_AUTOVACUUM
      if( nTrunc!=0 ){
        /* If this transaction has made the database smaller, then all pages
        ** being discarded by the truncation must be written to the journal
        ** file.
................................................................................
    }
#endif
    pPager->pStmt = 0;
    pPager->state = PAGER_SHARED;
    pagerLeave(pPager);
    return SQLITE_OK;
  }

  assert( pPager->state==PAGER_SYNCED || !pPager->dirtyCache );
  rc = pager_end_transaction(pPager);
  rc = pager_error(pPager, rc);
  pagerLeave(pPager);
  return rc;
}

Changes to test/delete.test. 

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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the DELETE FROM statement.
#
# $Id: delete.test,v 1.22 2007/10/05 15:53:29 danielk1977 Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Try to delete from a non-existant table.
#
do_test delete-1.1 {
................................................................................
  execsql {
    PRAGMA count_changes=OFF;
    INSERT INTO t3 VALUES(123);
    SELECT * FROM t3;
  }
} {123}
db close

catch {file attributes test.db -permissions 0444}
catch {file attributes test.db -readonly 1}
sqlite3 db test.db
set ::DB [sqlite3_connection_pointer db]
do_test delete-8.1 {
  catchsql {
    DELETE FROM t3;








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#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this file is testing the DELETE FROM statement.
#
# $Id: delete.test,v 1.23 2008/04/19 20:53:26 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Try to delete from a non-existant table.
#
do_test delete-1.1 {
................................................................................
  execsql {
    PRAGMA count_changes=OFF;
    INSERT INTO t3 VALUES(123);
    SELECT * FROM t3;
  }
} {123}
db close
catch {file delete -force test.db-journal}
catch {file attributes test.db -permissions 0444}
catch {file attributes test.db -readonly 1}
sqlite3 db test.db
set ::DB [sqlite3_connection_pointer db]
do_test delete-8.1 {
  catchsql {
    DELETE FROM t3;

Changes to test/jrnlmode2.test. 

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#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# This file runs the tests in the file ioerr.test with 
# persistent journal mode enabled.
#
# $Id: jrnlmode2.test,v 1.1 2008/04/19 20:34:19 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable {!pager_pragmas} {
  finish_test
  return
................................................................................
rename do_test really_do_test
proc do_test {args} {
  set sc [concat really_do_test "jrlnmode2-[lindex $args 0]" \
      [lrange $args 1 end]]
  eval $sc
}

source $testdir/vacuum.test


source $testdir/rollback.test
source $testdir/select1.test
source $testdir/select2.test
source $testdir/trans.test




rename sqlite3 ""
rename real_sqlite3 sqlite3
rename finish_test ""
rename really_finish_test2 finish_test
rename do_test ""
rename really_do_test do_test
finish_test








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#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# This file runs the tests in the file ioerr.test with 
# persistent journal mode enabled.
#
# $Id: jrnlmode2.test,v 1.2 2008/04/19 20:53:26 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable {!pager_pragmas} {
  finish_test
  return
................................................................................
rename do_test really_do_test
proc do_test {args} {
  set sc [concat really_do_test "jrlnmode2-[lindex $args 0]" \
      [lrange $args 1 end]]
  eval $sc
}

source $testdir/delete.test
source $testdir/delete2.test
source $testdir/insert.test
source $testdir/rollback.test
source $testdir/select1.test
source $testdir/select2.test
source $testdir/trans.test
source $testdir/update.test
source $testdir/vacuum.test


rename sqlite3 ""
rename real_sqlite3 sqlite3
rename finish_test ""
rename really_finish_test2 finish_test
rename do_test ""
rename really_do_test do_test
finish_test

Changes to test/jrnlmode3.test. 

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#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# This file runs the tests in the file ioerr.test with 
# persistent journal mode enabled.
#
# $Id: jrnlmode3.test,v 1.1 2008/04/19 20:34:19 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable {!pager_pragmas} {
  finish_test
  return
................................................................................
    [lindex $args 0] eval {PRAGMA journal_mode = persist}
  }
  set r
}

rename do_test really_do_test
proc do_test {args} {
  set sc [concat really_do_test "jrlnmode2-[lindex $args 0]" \
      [lrange $args 1 end]]
  eval $sc
}

source $testdir/malloc.test
source $testdir/ioerr.test









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#    May you share freely, never taking more than you give.
#
#***********************************************************************
#
# This file runs the tests in the file ioerr.test with 
# persistent journal mode enabled.
#
# $Id: jrnlmode3.test,v 1.2 2008/04/19 20:53:26 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable {!pager_pragmas} {
  finish_test
  return
................................................................................
    [lindex $args 0] eval {PRAGMA journal_mode = persist}
  }
  set r
}

rename do_test really_do_test
proc do_test {args} {
  set sc [concat really_do_test "jrlnmode3-[lindex $args 0]" \
      [lrange $args 1 end]]
  eval $sc
}

source $testdir/malloc.test
source $testdir/ioerr.test

Added test/jrnlmode4.test. 



























































































































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# 2007 March 26
#
# 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.
#
#***********************************************************************
#
# This file runs the tests in the file ioerr.test with 
# persistent journal mode enabled.
#
# $Id: jrnlmode4.test,v 1.1 2008/04/19 20:53:26 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

ifcapable {!pager_pragmas} {
  finish_test
  return
}

rename finish_test really_finish_test2
proc finish_test {} {}
set ISQUICK 1

rename sqlite3 real_sqlite3
proc sqlite3 {args} {
  set r [eval "real_sqlite3 $args"]
  if { [llength $args] == 2 } {
    [lindex $args 0] eval {PRAGMA journal_mode = off}
  }
  set r
}

rename do_test really_do_test
proc do_test {args} {
  set sc [concat really_do_test "jrlnmode4-[lindex $args 0]" \
      [lrange $args 1 end]]
  eval $sc
}

source $testdir/delete.test
source $testdir/delete2.test
source $testdir/insert.test
source $testdir/select1.test
source $testdir/select2.test
source $testdir/update.test
source $testdir/vacuum.test


rename sqlite3 ""
rename real_sqlite3 sqlite3
rename finish_test ""
rename really_finish_test2 finish_test
rename do_test ""
rename really_do_test do_test
finish_test

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