** 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 1.185 2005/01/21 08:13:15 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include "pager.h"
#include <assert.h>
#include <string.h>

................................................................................

end_playback:
  if( rc==SQLITE_OK ){
    rc = pager_unwritelock(pPager);
  }
  if( zMaster ){
    /* If there was a master journal and this routine will return true,
    ** see if it is possible to delete the master journal. If errors 
    ** occur during this process, ignore them.
    */
    if( rc==SQLITE_OK ){
      pager_delmaster(zMaster);
    }
    sqliteFree(zMaster);
  }

  /* The Pager.sectorSize variable may have been updated while rolling
  ** back a journal created by a process with a different PAGER_SECTOR_SIZE
  ** value. Reset it to the correct value for this process.

** 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 1.186 2005/01/22 03:39:39 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include "pager.h"
#include <assert.h>
#include <string.h>

................................................................................

end_playback:
  if( rc==SQLITE_OK ){
    rc = pager_unwritelock(pPager);
  }
  if( zMaster ){
    /* If there was a master journal and this routine will return true,
    ** see if it is possible to delete the master journal.

    */
    if( rc==SQLITE_OK ){
      rc = pager_delmaster(zMaster);
    }
    sqliteFree(zMaster);
  }

  /* The Pager.sectorSize variable may have been updated while rolling
  ** back a journal created by a process with a different PAGER_SECTOR_SIZE
  ** value. Reset it to the correct value for this process.

# 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: autovacuum_ioerr2.test,v 1.3 2005/01/16 09:06:34 danielk1977 Exp $

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

# If this build of the library does not support auto-vacuum, omit this
# whole file.
ifcapable {!autovacuum} {
  finish_test
  return
}

proc opendb {} {
  catch {file delete -force test.db}
  catch {file delete -force test.db-journal}
  sqlite3 db test.db
  execsql {pragma auto_vacuum = 1}
  execsql {SELECT * FROM sqlite_master}
}

set ::go 1
for {set n 1} {$go} {incr n} {
  do_test autovacuum-ioerr2-1.$n.1 {
    set ::sqlite_io_error_pending 0
    db close
    opendb
    execsql {
      CREATE TABLE abc(a);
      INSERT INTO abc VALUES(randstr(1500,1500));
    }
    expr [file size test.db]/1024
  } {4}
  do_test autovacuum-ioerr2-1.$n.2 [subst {
    set ::sqlite_io_error_pending $n
  }] $n
  do_test autovacuum-ioerr2-1.$n.3 {
    set r [catch {db eval {

      CREATE TABLE abc2(a);
      BEGIN;
      DELETE FROM abc;
      INSERT INTO abc VALUES(randstr(1500,1500));
      CREATE TABLE abc3(a);
      COMMIT;
    }} msg]
    set ::go [expr {$::sqlite_io_error_pending<=0}]
    expr {$::sqlite_io_error_pending>0 || $r!=0}
  } {1}
}
set ::sqlite_io_error_pending 0

set ::go 1
for {set n 1} {$go} {incr n} {
  do_test autovacuum-ioerr2-2.$n.1 {
    set ::sqlite_io_error_pending 0
    db close
    opendb
    execsql {
      PRAGMA cache_size = 10;
      BEGIN;
      CREATE TABLE abc(a);
      INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 4 is overflow
      INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 5 is overflow
    }
    for {set i 0} {$i<150} {incr i} {
      execsql {
        INSERT INTO abc VALUES(randstr(100,100)); 
      }
    }
    execsql COMMIT
  } {}
  do_test autovacuum-ioerr2-2.$n.2 [subst {
    set ::sqlite_io_error_pending $n
  }] $n
  do_test autovacuum-ioerr2-2.$n.3 {
    set r [catch {db eval {
      BEGIN;
      DELETE FROM abc WHERE length(a)>100;
      UPDATE abc SET a = randstr(90,90);
      CREATE TABLE abc3(a);
      COMMIT;
    }} msg]
    set ::go [expr {$::sqlite_io_error_pending<=0}]
    expr {$::sqlite_io_error_pending>0 || $r!=0}
  } {1}
}
set ::sqlite_io_error_pending 0

set ::go 1
for {set n 1} {$go} {incr n} {
  do_test autovacuum-ioerr2-3.$n.1 {
    set ::sqlite_io_error_pending 0
    db close
    opendb
    execsql {
      CREATE TABLE abc(a);
      CREATE TABLE abc2(b);
    }
  } {}
  do_test autovacuum-ioerr2-3.$n.2 [subst {
    set ::sqlite_io_error_pending $n
  }] $n
  do_test autovacuum-ioerr2-3.$n.3 {
    set r [catch {db eval {
      BEGIN;
      INSERT INTO abc2 VALUES(10);
      DROP TABLE abc;
      COMMIT;
      DROP TABLE abc2;
    }} msg]
    set ::go [expr {$::sqlite_io_error_pending<=0}]
    expr {$::sqlite_io_error_pending>0 || $r!=0}
  } {1}
}
set ::sqlite_io_error_pending 0

do_test autovacuum-ioerr2.4.0 {
  db close
  opendb
  execsql {

    PRAGMA cache_size = 10;
    BEGIN;
    CREATE TABLE abc(a);
    INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 4 is overflow
    INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 5 is overflow
  }
  for {set i 0} {$i<2500} {incr i} {
    execsql {
      INSERT INTO abc VALUES(randstr(100,100)); 
    }
  }
  execsql COMMIT
  file copy -force test.db backup.db





























} {}





proc opendb2 {} {







  catch {file delete -force test.db}
  catch {file delete -force test.db-journal}
  file copy backup.db test.db
  sqlite3 db test.db
  execsql {select * from sqlite_master}
  execsql {PRAGMA cache_size = 10}
  return ""
}

set ::go 1
for {set n 1} {$go} {incr n} {
  do_test autovacuum-ioerr2-4.$n.1 {
    set ::sqlite_io_error_pending 0
    db close
    opendb2
  } {}
  do_test autovacuum-ioerr2-4.$n.2 [subst {
    set ::sqlite_io_error_pending $n
  }] $n
  do_test autovacuum-ioerr2-4.$n.3 {
    set r [catch {db eval {

      BEGIN;
      DELETE FROM abc WHERE oid < 3;
      UPDATE abc SET a = randstr(100,100) WHERE oid > 2300;
      UPDATE abc SET a = randstr(1100,1100) WHERE oid = 
          (select max(oid) from abc);
      COMMIT;
    }} msg]
    set ::go [expr {$::sqlite_io_error_pending<=0}]
    expr {$::sqlite_io_error_pending>0 || $r!=0}
  } {1}
}
set ::sqlite_io_error_pending 0


rename opendb ""
db close
catch {file delete -force test.db}
catch {file delete -force test.db-journal}

finish_test

# 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: autovacuum_ioerr2.test,v 1.4 2005/01/22 03:39:39 danielk1977 Exp $

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

# If this build of the library does not support auto-vacuum, omit this
# whole file.
ifcapable {!autovacuum} {
  finish_test
  return
}

do_ioerr_test autovacuum-ioerr2-1 -sqlprep {



  PRAGMA auto_vacuum = 1;










  CREATE TABLE abc(a);
  INSERT INTO abc VALUES(randstr(1500,1500));








} -sqlbody {
  CREATE TABLE abc2(a);
  BEGIN;
  DELETE FROM abc;
  INSERT INTO abc VALUES(randstr(1500,1500));
  CREATE TABLE abc3(a);
  COMMIT;




}




do_ioerr_test autovacuum-ioerr2-2 -tclprep {



  execsql {






























































    PRAGMA auto_vacuum = 1;
    PRAGMA cache_size = 10;
    BEGIN;
    CREATE TABLE abc(a);
    INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 4 is overflow
    INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 5 is overflow
  }
  for {set i 0} {$i<150} {incr i} {
    execsql {
      INSERT INTO abc VALUES(randstr(100,100)); 
    }
  }
  execsql COMMIT
} -sqlbody {
  BEGIN;
  DELETE FROM abc WHERE length(a)>100;
  UPDATE abc SET a = randstr(90,90);
  CREATE TABLE abc3(a);
  COMMIT;
}

do_ioerr_test autovacuum-ioerr2-3 -sqlprep {
  PRAGMA auto_vacuum = 1;
  CREATE TABLE abc(a);
  CREATE TABLE abc2(b);
} -sqlbody {
  BEGIN;
  INSERT INTO abc2 VALUES(10);
  DROP TABLE abc;
  COMMIT;
  DROP TABLE abc2;
}

file delete -force backup.db
do_ioerr_test autovacuum-ioerr2-4 -tclprep {
  if {![file exists backup.db]} {
    sqlite3 dbb backup.db 
    execsql {
      PRAGMA auto_vacuum = 1;
      BEGIN;
      CREATE TABLE abc(a);
      INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 4 is overflow
      INSERT INTO abc VALUES(randstr(1100,1100)); -- Page 5 is overflow
    } dbb
    for {set i 0} {$i<2500} {incr i} {
      execsql {
        INSERT INTO abc VALUES(randstr(100,100)); 
      } dbb
    }

    execsql {
      COMMIT;
      PRAGMA cache_size = 10;
    } dbb
    dbb close
  }
  db close
  file delete -force test.db
  file delete -force test.db-journal
  copy_file backup.db test.db
  set ::DB [sqlite3 db test.db]
  execsql {
    PRAGMA cache_size = 10;

  }













} -sqlbody {
  BEGIN;
  DELETE FROM abc WHERE oid < 3;
  UPDATE abc SET a = randstr(100,100) WHERE oid > 2300;
  UPDATE abc SET a = randstr(1100,1100) WHERE oid = 
      (select max(oid) from abc);
  COMMIT;




}








finish_test

#    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 script is page cache subsystem.
#
# $Id: collate3.test,v 1.7 2005/01/03 02:26:55 drh Exp $

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

#
# Tests are organised as follows:
#
................................................................................
    INSERT INTO collate3t1 VALUES('xxx', 'yyy');
  }
  db close
  sqlite3 db test.db
  expr 0
} 0
db eval {select * from collate3t1}
breakpoint
do_test collate3-3.1 {
  catchsql {
    INSERT INTO collate3t1 VALUES('xxx', 0);
  }
} {1 {no such collation sequence: string_compare}} 
do_test collate3-3.2 {
  catchsql {

#    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 script is page cache subsystem.
#
# $Id: collate3.test,v 1.8 2005/01/22 03:39:39 danielk1977 Exp $

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

#
# Tests are organised as follows:
#
................................................................................
    INSERT INTO collate3t1 VALUES('xxx', 'yyy');
  }
  db close
  sqlite3 db test.db
  expr 0
} 0
db eval {select * from collate3t1}

do_test collate3-3.1 {
  catchsql {
    INSERT INTO collate3t1 VALUES('xxx', 0);
  }
} {1 {no such collation sequence: string_compare}} 
do_test collate3-3.2 {
  catchsql {

#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests to make sure SQLite does not crash or
# segfault if it sees a corrupt database file.
#
# $Id: corrupt2.test,v 1.1 2005/01/11 10:25:07 danielk1977 Exp $

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

# The following tests - corrupt2-1.* - create some databases corrupted in
# specific ways and ensure that SQLite detects them as corrupt.
#
................................................................................
} {}

do_test corrupt2-1.2 {

  # Corrupt the 16 byte magic string at the start of the file
  file delete -force corrupt.db
  file delete -force corrupt.db-journal
  file copy test.db corrupt.db
  set f [open corrupt.db a]
  seek $f 8 start
  puts $f blah
  close $f

  sqlite3 db2 corrupt.db
  catchsql {
................................................................................

do_test corrupt2-1.3 {
  db2 close

  # Corrupt the page-size (bytes 16 and 17 of page 1).
  file delete -force corrupt.db
  file delete -force corrupt.db-journal
  file copy test.db corrupt.db
  set f [open corrupt.db a]
  fconfigure $f -encoding binary
  seek $f 16 start
  puts -nonewline $f "\x00\xFF"
  close $f

  sqlite3 db2 corrupt.db
................................................................................

do_test corrupt2-1.4 {
  db2 close

  # Corrupt the free-block list on page 1.
  file delete -force corrupt.db
  file delete -force corrupt.db-journal
  file copy test.db corrupt.db
  set f [open corrupt.db a]
  fconfigure $f -encoding binary
  seek $f 101 start
  puts -nonewline $f "\xFF\xFF"
  close $f

  sqlite3 db2 corrupt.db
................................................................................

do_test corrupt2-1.5 {
  db2 close

  # Corrupt the free-block list on page 1.
  file delete -force corrupt.db
  file delete -force corrupt.db-journal
  file copy test.db corrupt.db
  set f [open corrupt.db a]
  fconfigure $f -encoding binary
  seek $f 101 start
  puts -nonewline $f "\x00\xC8"
  seek $f 200 start
  puts -nonewline $f "\x00\x00"
  puts -nonewline $f "\x10\x00"

#
#***********************************************************************
# This file implements regression tests for SQLite library.
#
# This file implements tests to make sure SQLite does not crash or
# segfault if it sees a corrupt database file.
#
# $Id: corrupt2.test,v 1.2 2005/01/22 03:39:39 danielk1977 Exp $

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

# The following tests - corrupt2-1.* - create some databases corrupted in
# specific ways and ensure that SQLite detects them as corrupt.
#
................................................................................
} {}

do_test corrupt2-1.2 {

  # Corrupt the 16 byte magic string at the start of the file
  file delete -force corrupt.db
  file delete -force corrupt.db-journal
  copy_file test.db corrupt.db
  set f [open corrupt.db a]
  seek $f 8 start
  puts $f blah
  close $f

  sqlite3 db2 corrupt.db
  catchsql {
................................................................................

do_test corrupt2-1.3 {
  db2 close

  # Corrupt the page-size (bytes 16 and 17 of page 1).
  file delete -force corrupt.db
  file delete -force corrupt.db-journal
  copy_file test.db corrupt.db
  set f [open corrupt.db a]
  fconfigure $f -encoding binary
  seek $f 16 start
  puts -nonewline $f "\x00\xFF"
  close $f

  sqlite3 db2 corrupt.db
................................................................................

do_test corrupt2-1.4 {
  db2 close

  # Corrupt the free-block list on page 1.
  file delete -force corrupt.db
  file delete -force corrupt.db-journal
  copy_file test.db corrupt.db
  set f [open corrupt.db a]
  fconfigure $f -encoding binary
  seek $f 101 start
  puts -nonewline $f "\xFF\xFF"
  close $f

  sqlite3 db2 corrupt.db
................................................................................

do_test corrupt2-1.5 {
  db2 close

  # Corrupt the free-block list on page 1.
  file delete -force corrupt.db
  file delete -force corrupt.db-journal
  copy_file test.db corrupt.db
  set f [open corrupt.db a]
  fconfigure $f -encoding binary
  seek $f 101 start
  puts -nonewline $f "\x00\xC8"
  seek $f 200 start
  puts -nonewline $f "\x00\x00"
  puts -nonewline $f "\x10\x00"

# 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 1.16 2005/01/19 03:47:16 danielk1977 Exp $

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

# Usage: do_ioerr_test <test number> <options...>
#
# The first argument, <test number>, is an integer used to name the
# tests executed by this proc. Options are as follows:
#
#     -tclprep          TCL script to run to prepare test.
#     -sqlprep          SQL script to run to prepare test.
#     -tclbody          TCL script to run with IO error simulation.
#     -sqlbody          TCL script to run with IO error simulation.
#     -exclude          List of 'N' values not to test.
#     -start            Value of 'N' to begin with (default 1)
#
proc do_ioerr_test {tn args} {
  array set ::ioerropts $args

  set ::go 1
  if {![info exists ::ioerropts(-start)]} {
    set ::ioerropts(-start) 1
  }
  for {set n $::ioerropts(-start)} {$::go} {incr n} {
 
    if {[info exists ::ioerropts(-exclude)]} {
      if {[lsearch $::ioerropts(-exclude) $n]!=-1} continue
    }

    do_test ioerr-$tn.$n.1 {
      set ::sqlite_io_error_pending 0
      catch {db close}
      catch {file delete -force test.db}
      catch {file delete -force test.db-journal}
      catch {file delete -force test2.db}
      catch {file delete -force test2.db-journal}
  
      set ::DB [sqlite3 db test.db]
  
      if {[info exists ::ioerropts(-tclprep)]} {
        eval $::ioerropts(-tclprep)
      }
      if {[info exists ::ioerropts(-sqlprep)]} {
        execsql $::ioerropts(-sqlprep)
      }
      expr 0
    } {0}
  
    do_test ioerr-$tn.$n.2 [subst {
      set ::sqlite_io_error_pending $n
    }] $n
  
    set ::ioerrorbody {}
    if {[info exists ::ioerropts(-tclbody)]} {
      append ::ioerrorbody "$::ioerropts(-tclbody)\n"
    }
    if {[info exists ::ioerropts(-sqlbody)]} {
      append ::ioerrorbody "db eval {$::ioerropts(-sqlbody)}"
    }
    do_test ioerr-$tn.$n.3 {
      set r [catch $::ioerrorbody msg]
      set ::go [expr {$::sqlite_io_error_pending<=0}]
      expr {$::sqlite_io_error_pending>0 || $r!=0}
    } {1}
  }
  set ::sqlite_io_error_pending 0
  unset ::ioerropts
}

# 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.
#
# This is because the 8th IO call attempts to read page 2 of the database
# file when the file on disk is only 1 page. The pager layer detects that
# this has happened and suppresses the error returned by the OS layer.
#
do_ioerr_test 1 -sqlprep {
  SELECT * FROM sqlite_master;
} -sqlbody {
  CREATE TABLE t1(a,b,c);
  SELECT * FROM sqlite_master;
  BEGIN TRANSACTION;
  INSERT INTO t1 VALUES(1,2,3);
  INSERT INTO t1 VALUES(4,5,6);
................................................................................
  INSERT INTO t1 VALUES(1,2,3);
  INSERT INTO t1 VALUES(4,5,6);
  COMMIT;
  SELECT * FROM t1;
  DELETE FROM t1 WHERE a<100;
} -exclude [expr [string match [execsql {pragma auto_vacuum}] 1] ? 8 : 0]



proc cksum {{db db}} {
  set txt [$db eval {
      SELECT name, type, sql FROM sqlite_master order by name
  }]\n
  foreach tbl [$db eval {

      SELECT name FROM sqlite_master WHERE type='table' order by name
  }] {
    append txt [$db eval "SELECT * FROM $tbl"]\n
  }


  foreach prag {default_synchronous default_cache_size} {
    append txt $prag-[$db eval "PRAGMA $prag"]\n
  }
  set cksum [string length $txt]-[md5 $txt]
  # puts $cksum-[file size test.db]
  return $cksum
}

set ::go 1
for {set n 1} {$go} {incr n} {
  if {$n==24} breakpoint
  do_test ioerr-2.$n.1 {
    set ::sqlite_io_error_pending 0
    db close
    catch {file delete -force test.db}
    catch {file delete -force test.db-journal}
    catch {file delete -force test2.db}
    catch {file delete -force test2.db-journal}
    sqlite3 db test.db
    execsql {
      BEGIN;
      CREATE TABLE t1(a, b, c);
      INSERT INTO t1 VALUES(1, randstr(5,50), randstr(5,50));
      INSERT INTO t1 SELECT a+2, b||'-'||rowid, c||'-'||rowid FROM t1;
      INSERT INTO t1 SELECT a+4, b||'-'||rowid, c||'-'||rowid FROM t1;
      INSERT INTO t1 SELECT a+8, b||'-'||rowid, c||'-'||rowid FROM t1;
      INSERT INTO t1 SELECT a+16, b||'-'||rowid, c||'-'||rowid FROM t1;
      INSERT INTO t1 SELECT a+32, b||'-'||rowid, c||'-'||rowid FROM t1;
      INSERT INTO t1 SELECT a+64, b||'-'||rowid, c||'-'||rowid FROM t1;
      INSERT INTO t1 SELECT a+128, b||'-'||rowid, c||'-'||rowid FROM t1;
      INSERT INTO t1 VALUES(1, randstr(600,600), randstr(600,600));
      CREATE TABLE t2 AS SELECT * FROM t1;
      CREATE TABLE t3 AS SELECT * FROM t1;
      COMMIT;
      DROP TABLE t2;
    }
    set ::cksum [cksum]
    execsql {
      SELECT name FROM sqlite_master WHERE type='table'
    }
  } {t1 t3}
  do_test ioerr-2.$n.2 [subst {
    set ::sqlite_io_error_pending $n
  }] $n
  do_test ioerr-2.$n.3 {
    set r [catch {db eval {

      VACUUM;
    }} msg]
    set ::go [expr {$::sqlite_io_error_pending<=0}]
    expr {$::sqlite_io_error_pending>0 || $r!=0}
    set ::sqlite_io_error_pending 0
    db close
    sqlite3 db test.db
    cksum
  } $cksum


}
set ::sqlite_io_error_pending 0


do_ioerr_test 3 -tclprep {
  execsql {
    PRAGMA cache_size = 10;
    BEGIN;
    CREATE TABLE abc(a);
    INSERT INTO abc VALUES(randstr(1500,1500)); -- Page 4 is overflow
  }
  for {set i 0} {$i<150} {incr i} {
................................................................................
  UPDATE abc SET a = randstr(90,90);
  COMMIT;
  CREATE TABLE abc3(a);
} 

# Test IO errors that can occur retrieving a record header that flows over
# onto an overflow page.
do_ioerr_test 4 -tclprep {
  set sql "CREATE TABLE abc(a1"
  for {set i 2} {$i<1300} {incr i} {
    append sql ", a$i"
  }
  append sql ");"
  execsql $sql
  execsql {INSERT INTO abc (a1) VALUES(NULL)}
................................................................................
#
# Tests 8 and 17 are excluded when auto-vacuum is enabled for the same 
# reason as in test cases ioerr-1.XXX
set ex ""
if {[string match [execsql {pragma auto_vacuum}] 1]} {
  set ex [list 8 17]
}
do_ioerr_test 5 -sqlprep {
  ATTACH 'test2.db' AS test2;
} -sqlbody {
  BEGIN;
  CREATE TABLE t1(a,b,c);
  CREATE TABLE test2.t2(a,b,c);
  COMMIT;
} -exclude $ex

# Test IO errors when replaying two hot journals from a 2-file 
# transaction. This test only runs on UNIX.
if {$tcl_platform(platform)=="unix" && [file exists ./crashtest]} {
  do_ioerr_test 6 -tclprep {





    set rc [crashsql 2 test2.db-journal {
      ATTACH 'test2.db' as aux;
      PRAGMA cache_size = 10;
      BEGIN;
      CREATE TABLE aux.t2(a, b, c);
      CREATE TABLE t1(a, b, c);
      COMMIT;
    }]
    if {$rc!="1 {child process exited abnormally}"} {
      error "Wrong error message: $rc"
    }
  } -sqlbody {
    ATTACH 'test2.db' as aux;
    SELECT * FROM t1;
    SELECT * FROM t2;
  }
}

# Test handling of IO errors that occur while rolling back hot journal
# files.
#
# These tests can't be run on windows because the windows version of 
# SQLite holds a mandatory exclusive lock on journal files it has open.
#
if {$tcl_platform(platform)!="windows"} {
  do_ioerr_test 7 -tclprep {
    db close
    sqlite3 db2 test2.db
    db2 eval {
      PRAGMA synchronous = 0;
      CREATE TABLE t1(a, b);
      INSERT INTO t1 VALUES(1, 2);
      BEGIN;
      INSERT INTO t1 VALUES(3, 4);
    }
    file copy -force test2.db test.db
    file copy -force test2.db-journal test.db-journal
    db2 close
  } -tclbody {
    sqlite3 db test.db
    db eval {
      SELECT * FROM t1;
    }
  } -exclude 1
}

# do_ioerr_test 15 -sqlprep {
#   CREATE TABLE abc(a UNIQUE, b, c);
#   INSERT INTO abc VALUES(1, 2, 3);
# } -sqlbody {
#   BEGIN;
#   INSERT INTO abc VALUES(1, 2, 3);
#   COMMIT;
# }

finish_test

# 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 1.17 2005/01/22 03:39:39 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.
#
# This is because the 8th IO call attempts to read page 2 of the database
# file when the file on disk is only 1 page. The pager layer detects that
# this has happened and suppresses the error returned by the OS layer.
#
do_ioerr_test ioerr-1 -sqlprep {
  SELECT * FROM sqlite_master;
} -sqlbody {
  CREATE TABLE t1(a,b,c);
  SELECT * FROM sqlite_master;
  BEGIN TRANSACTION;
  INSERT INTO t1 VALUES(1,2,3);
  INSERT INTO t1 VALUES(4,5,6);
................................................................................
  INSERT INTO t1 VALUES(1,2,3);
  INSERT INTO t1 VALUES(4,5,6);
  COMMIT;
  SELECT * FROM t1;
  DELETE FROM t1 WHERE a<100;
} -exclude [expr [string match [execsql {pragma auto_vacuum}] 1] ? 8 : 0]

# Test for IO errors during a VACUUM. 
#

# The first IO call is excluded from the test. This call attempts to read
# the file-header of the temporary database used by VACUUM. Since the
# database doesn't exist at that point, the IO error is not detected.

# 
# Additionally, if auto-vacuum is enabled, the 12th IO error is not 
# detected. Same reason as the 8th in the test case above.


#
# IO error 134 is omitted because this occurs while closing the 
# temporary database used by vacuum and is not reported.






#



do_ioerr_test ioerr-2 -cksum true -sqlprep {








  BEGIN;
  CREATE TABLE t1(a, b, c);
  INSERT INTO t1 VALUES(1, randstr(5,50), randstr(5,50));
  INSERT INTO t1 SELECT a+2, b||'-'||rowid, c||'-'||rowid FROM t1;
  INSERT INTO t1 SELECT a+4, b||'-'||rowid, c||'-'||rowid FROM t1;
  INSERT INTO t1 SELECT a+8, b||'-'||rowid, c||'-'||rowid FROM t1;
  INSERT INTO t1 SELECT a+16, b||'-'||rowid, c||'-'||rowid FROM t1;
  INSERT INTO t1 SELECT a+32, b||'-'||rowid, c||'-'||rowid FROM t1;
  INSERT INTO t1 SELECT a+64, b||'-'||rowid, c||'-'||rowid FROM t1;
  INSERT INTO t1 SELECT a+128, b||'-'||rowid, c||'-'||rowid FROM t1;
  INSERT INTO t1 VALUES(1, randstr(600,600), randstr(600,600));
  CREATE TABLE t2 AS SELECT * FROM t1;
  CREATE TABLE t3 AS SELECT * FROM t1;
  COMMIT;
  DROP TABLE t2;











} -sqlbody {
  VACUUM;








} -exclude [list \
    1 134 [expr [string match [execsql {pragma auto_vacuum}] 1]?12:-1]]




do_ioerr_test ioerr-3 -tclprep {
  execsql {
    PRAGMA cache_size = 10;
    BEGIN;
    CREATE TABLE abc(a);
    INSERT INTO abc VALUES(randstr(1500,1500)); -- Page 4 is overflow
  }
  for {set i 0} {$i<150} {incr i} {
................................................................................
  UPDATE abc SET a = randstr(90,90);
  COMMIT;
  CREATE TABLE abc3(a);
} 

# Test IO errors that can occur retrieving a record header that flows over
# onto an overflow page.
do_ioerr_test ioerr-4 -tclprep {
  set sql "CREATE TABLE abc(a1"
  for {set i 2} {$i<1300} {incr i} {
    append sql ", a$i"
  }
  append sql ");"
  execsql $sql
  execsql {INSERT INTO abc (a1) VALUES(NULL)}
................................................................................
#
# Tests 8 and 17 are excluded when auto-vacuum is enabled for the same 
# reason as in test cases ioerr-1.XXX
set ex ""
if {[string match [execsql {pragma auto_vacuum}] 1]} {
  set ex [list 8 17]
}
do_ioerr_test ioerr-5 -sqlprep {
  ATTACH 'test2.db' AS test2;
} -sqlbody {
  BEGIN;
  CREATE TABLE t1(a,b,c);
  CREATE TABLE test2.t2(a,b,c);
  COMMIT;
} -exclude $ex

# Test IO errors when replaying two hot journals from a 2-file 
# transaction. This test only runs on UNIX.
if {$tcl_platform(platform)=="unix" && [file exists ./crashtest]} {
  do_ioerr_test ioerr-6 -tclprep {
    execsql {
      ATTACH 'test2.db' as aux;
      CREATE TABLE tx(a, b);
      CREATE TABLE aux.ty(a, b);
    }
    set rc [crashsql 2 test2.db-journal {
      ATTACH 'test2.db' as aux;
      PRAGMA cache_size = 10;
      BEGIN;
      CREATE TABLE aux.t2(a, b, c);
      CREATE TABLE t1(a, b, c);
      COMMIT;
    }]
    if {$rc!="1 {child process exited abnormally}"} {
      error "Wrong error message: $rc"
    }
  } -sqlbody {

    SELECT * FROM sqlite_master;
    SELECT * FROM aux.sqlite_master;
  }
} 

# Test handling of IO errors that occur while rolling back hot journal
# files.
#
# These tests can't be run on windows because the windows version of 
# SQLite holds a mandatory exclusive lock on journal files it has open.
#
if {$tcl_platform(platform)!="windows"} {
  do_ioerr_test ioerr-7 -tclprep {
    db close
    sqlite3 db2 test2.db
    db2 eval {
      PRAGMA synchronous = 0;
      CREATE TABLE t1(a, b);
      INSERT INTO t1 VALUES(1, 2);
      BEGIN;
      INSERT INTO t1 VALUES(3, 4);
    }
    copy_file test2.db test.db
    copy_file test2.db-journal test.db-journal
    db2 close
  } -tclbody {
    sqlite3 db test.db
    db eval {
      SELECT * FROM t1;
    }
  } -exclude 1
}










finish_test

#***********************************************************************
# This file attempts to check the library in an out-of-memory situation.
# When compiled with -DSQLITE_DEBUG=1, the SQLite library accepts a special
# command (sqlite_malloc_fail N) which causes the N-th malloc to fail.  This
# special feature is used to see what happens in the library if a malloc
# were to really fail due to an out-of-memory situation.
#
# $Id: malloc.test,v 1.21 2005/01/19 03:52:55 danielk1977 Exp $

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

# Only run these tests if memory debugging is turned on.
#
if {[info command sqlite_malloc_stat]==""} {
................................................................................
  db2 eval {
    PRAGMA synchronous = 0;
    CREATE TABLE t1(a, b);
    INSERT INTO t1 VALUES(1, 2);
    BEGIN;
    INSERT INTO t1 VALUES(3, 4);
  }
  file copy -force test2.db test.db
  file copy -force test2.db-journal test.db-journal
  db2 close
} -tclbody {
  sqlite3 db test.db
  db eval {
    SELECT * FROM t1;
  }  
}

#***********************************************************************
# This file attempts to check the library in an out-of-memory situation.
# When compiled with -DSQLITE_DEBUG=1, the SQLite library accepts a special
# command (sqlite_malloc_fail N) which causes the N-th malloc to fail.  This
# special feature is used to see what happens in the library if a malloc
# were to really fail due to an out-of-memory situation.
#
# $Id: malloc.test,v 1.22 2005/01/22 03:39:39 danielk1977 Exp $

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

# Only run these tests if memory debugging is turned on.
#
if {[info command sqlite_malloc_stat]==""} {
................................................................................
  db2 eval {
    PRAGMA synchronous = 0;
    CREATE TABLE t1(a, b);
    INSERT INTO t1 VALUES(1, 2);
    BEGIN;
    INSERT INTO t1 VALUES(3, 4);
  }
  copy_file test2.db test.db
  copy_file test2.db-journal test.db-journal
  db2 close
} -tclbody {
  sqlite3 db test.db
  db eval {
    SELECT * FROM t1;
  }  
}

#    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 script is page cache subsystem.
#
# $Id: pager.test,v 1.22 2005/01/20 02:17:02 danielk1977 Exp $


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

if {[info commands pager_open]!=""} {
db close
................................................................................
    INSERT INTO abc VALUES(1, 2, randstr(200,200));
    INSERT INTO abc VALUES(1, 2, randstr(200,200));
    INSERT INTO abc VALUES(1, 2, randstr(200,200));
    INSERT INTO abc VALUES(1, 2, randstr(200,200));
    BEGIN;
    UPDATE abc SET c = randstr(200,200);
  } db2
  file copy -force test2.db test.db
  file copy -force test2.db-journal test.db-journal

  set f [open test.db-journal a]
  fconfigure $f -encoding binary
  seek $f [expr [file size test.db-journal] - 1032] start
  puts -nonewline $f "\00\00\00\00"
  close $f

................................................................................
  sqlite3 db test.db
  execsql {
    SELECT sql FROM sqlite_master
  }
} {{CREATE TABLE abc(a, b, c)}}

do_test pager-6.2 {
  file copy -force test2.db test.db
  file copy -force test2.db-journal test.db-journal

  set f [open test.db-journal a]
  fconfigure $f -encoding binary
  seek $f [expr [file size test.db-journal] - 1032] start
  puts -nonewline $f "\00\00\00\FF"
  close $f

................................................................................
  sqlite3 db test.db
  execsql {
    SELECT sql FROM sqlite_master
  }
} {{CREATE TABLE abc(a, b, c)}}

do_test pager-6.3 {
  file copy -force test2.db test.db
  file copy -force test2.db-journal test.db-journal

  set f [open test.db-journal a]
  fconfigure $f -encoding binary
  seek $f [expr [file size test.db-journal] - 4] start
  puts -nonewline $f "\00\00\00\00"
  close $f

#    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 script is page cache subsystem.
#
# $Id: pager.test,v 1.23 2005/01/22 03:39:39 danielk1977 Exp $


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

if {[info commands pager_open]!=""} {
db close
................................................................................
    INSERT INTO abc VALUES(1, 2, randstr(200,200));
    INSERT INTO abc VALUES(1, 2, randstr(200,200));
    INSERT INTO abc VALUES(1, 2, randstr(200,200));
    INSERT INTO abc VALUES(1, 2, randstr(200,200));
    BEGIN;
    UPDATE abc SET c = randstr(200,200);
  } db2
  copy_file test2.db test.db
  copy_file test2.db-journal test.db-journal

  set f [open test.db-journal a]
  fconfigure $f -encoding binary
  seek $f [expr [file size test.db-journal] - 1032] start
  puts -nonewline $f "\00\00\00\00"
  close $f

................................................................................
  sqlite3 db test.db
  execsql {
    SELECT sql FROM sqlite_master
  }
} {{CREATE TABLE abc(a, b, c)}}

do_test pager-6.2 {
  copy_file test2.db test.db
  copy_file test2.db-journal test.db-journal

  set f [open test.db-journal a]
  fconfigure $f -encoding binary
  seek $f [expr [file size test.db-journal] - 1032] start
  puts -nonewline $f "\00\00\00\FF"
  close $f

................................................................................
  sqlite3 db test.db
  execsql {
    SELECT sql FROM sqlite_master
  }
} {{CREATE TABLE abc(a, b, c)}}

do_test pager-6.3 {
  copy_file test2.db test.db
  copy_file test2.db-journal test.db-journal

  set f [open test.db-journal a]
  fconfigure $f -encoding binary
  seek $f [expr [file size test.db-journal] - 4] start
  puts -nonewline $f "\00\00\00\00"
  close $f

#    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 CREATE TABLE statement.
#
# $Id: table.test,v 1.36 2005/01/21 03:12:16 danielk1977 Exp $

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

# Create a basic table and verify it is added to sqlite_master
#
do_test table-1.1 {
................................................................................
    SELECT * FROM weird;
  }
} {desc a asc b key 9 14_vac 0 fuzzy_dog_12 xyz begin hi end y'all}

# Try out the CREATE TABLE AS syntax
#
do_test table-8.1 {
breakpoint
  execsql2 {
    CREATE TABLE t2 AS SELECT * FROM weird;
    SELECT * FROM t2;
  }
} {desc a asc b key 9 14_vac 0 fuzzy_dog_12 xyz begin hi end y'all}
do_test table-8.1.1 {
  execsql {

#    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 CREATE TABLE statement.
#
# $Id: table.test,v 1.37 2005/01/22 03:39:39 danielk1977 Exp $

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

# Create a basic table and verify it is added to sqlite_master
#
do_test table-1.1 {
................................................................................
    SELECT * FROM weird;
  }
} {desc a asc b key 9 14_vac 0 fuzzy_dog_12 xyz begin hi end y'all}

# Try out the CREATE TABLE AS syntax
#
do_test table-8.1 {

  execsql2 {
    CREATE TABLE t2 AS SELECT * FROM weird;
    SELECT * FROM t2;
  }
} {desc a asc b key 9 14_vac 0 fuzzy_dog_12 xyz begin hi end y'all}
do_test table-8.1.1 {
  execsql {

#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements some common TCL routines used for regression
# testing the SQLite library
#
# $Id: tester.tcl,v 1.45 2005/01/21 03:12:16 danielk1977 Exp $

# Make sure tclsqlite3 was compiled correctly.  Abort now with an
# error message if not.
#
if {[sqlite3 -tcl-uses-utf]} {
  if {"\u1234"=="u1234"} {
    puts stderr "***** BUILD PROBLEM *****"
................................................................................
  close $f

  set r [catch {
    exec [file join . crashtest] crash.tcl >@stdout
  } msg]
  lappend r $msg
}










































































































































# If the library is compiled with the SQLITE_DEFAULT_AUTOVACUUM macro set
# to non-zero, then set the global variable $AUTOVACUUM to 1.
set AUTOVACUUM $sqlite_options(default_autovacuum)

#    May you find forgiveness for yourself and forgive others.
#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements some common TCL routines used for regression
# testing the SQLite library
#
# $Id: tester.tcl,v 1.46 2005/01/22 03:39:39 danielk1977 Exp $

# Make sure tclsqlite3 was compiled correctly.  Abort now with an
# error message if not.
#
if {[sqlite3 -tcl-uses-utf]} {
  if {"\u1234"=="u1234"} {
    puts stderr "***** BUILD PROBLEM *****"
................................................................................
  close $f

  set r [catch {
    exec [file join . crashtest] crash.tcl >@stdout
  } msg]
  lappend r $msg
}

# Usage: do_ioerr_test <test number> <options...>
#
# This proc is used to implement test cases that check that IO errors
# are correctly handled. The first argument, <test number>, is an integer 
# used to name the tests executed by this proc. Options are as follows:
#
#     -tclprep          TCL script to run to prepare test.
#     -sqlprep          SQL script to run to prepare test.
#     -tclbody          TCL script to run with IO error simulation.
#     -sqlbody          TCL script to run with IO error simulation.
#     -exclude          List of 'N' values not to test.
#     -start            Value of 'N' to begin with (default 1)
#
#     -cksum            Boolean. If true, test that the database does
#                       not change during the execution of the test case.
#
proc do_ioerr_test {testname args} {

  if {$testname=="ioerr-2"} {
    breakpoint
  }
  set ::ioerropts(-start) 1
  set ::ioerropts(-cksum) 0

  array set ::ioerropts $args

  set ::go 1
  for {set n $::ioerropts(-start)} {$::go} {incr n} {
 
    # Skip this IO error if it was specified with the "-exclude" option.
    if {[info exists ::ioerropts(-exclude)]} {
      if {[lsearch $::ioerropts(-exclude) $n]!=-1} continue
    }

    # Delete the files test.db and test2.db, then execute the TCL and 
    # SQL (in that order) to prepare for the test case.
    do_test $testname.$n.1 {
      set ::sqlite_io_error_pending 0
      catch {db close}
      catch {file delete -force test.db}
      catch {file delete -force test.db-journal}
      catch {file delete -force test2.db}
      catch {file delete -force test2.db-journal}
      set ::DB [sqlite3 db test.db]
      if {[info exists ::ioerropts(-tclprep)]} {
        eval $::ioerropts(-tclprep)
      }
      if {[info exists ::ioerropts(-sqlprep)]} {
        execsql $::ioerropts(-sqlprep)
      }
      expr 0
    } {0}

    # Read the 'checksum' of the database.
    if {$::ioerropts(-cksum)} {
      set checksum [cksum]
    }
  
    # Set the Nth IO error to fail.
    do_test $testname.$n.2 [subst {
      set ::sqlite_io_error_pending $n
    }] $n
  
    # Create a single TCL script from the TCL and SQL specified
    # as the body of the test.
    set ::ioerrorbody {}
    if {[info exists ::ioerropts(-tclbody)]} {
      append ::ioerrorbody "$::ioerropts(-tclbody)\n"
    }
    if {[info exists ::ioerropts(-sqlbody)]} {
      append ::ioerrorbody "db eval {$::ioerropts(-sqlbody)}"
    }

    # Execute the TCL Script created in the above block. If
    # there are at least N IO operations performed by SQLite as
    # a result of the script, the Nth will fail.
    do_test $testname.$n.3 {
      set r [catch $::ioerrorbody msg]
      set ::go [expr {$::sqlite_io_error_pending<=0}]
      set s [expr $::sqlite_io_error_pending>0]
      # puts "$::sqlite_io_error_pending $r $msg"
      expr { ($s && !$r) || (!$s && $r) }
      # expr {$::sqlite_io_error_pending>0 || $r!=0}
    } {1}

    # If an IO error occured, then the checksum of the database should
    # be the same as before the script that caused the IO error was run.
    if {$::go && $::ioerropts(-cksum)} {
      do_test $testname.$n.4 {
        catch {db close}
        set ::DB [sqlite3 db test.db]
        cksum
      } $checksum
    }

  }
  set ::sqlite_io_error_pending 0
  unset ::ioerropts
}

# Return a checksum based on the contents of database 'db'.
#
proc cksum {{db db}} {
  set txt [$db eval {
      SELECT name, type, sql FROM sqlite_master order by name
  }]\n
  foreach tbl [$db eval {
      SELECT name FROM sqlite_master WHERE type='table' order by name
  }] {
    append txt [$db eval "SELECT * FROM $tbl"]\n
  }
  foreach prag {default_synchronous default_cache_size} {
    append txt $prag-[$db eval "PRAGMA $prag"]\n
  }
  set cksum [string length $txt]-[md5 $txt]
  # puts $cksum-[file size test.db]
  return $cksum
}

# Copy file $from into $to. This is used because some versions of
# TCL for windows (notably the 8.4.1 binary package shipped with the
# current mingw release) have a broken "file copy" command.
#
proc copy_file {from to} {
  if {$::tcl_platform(platform)=="unix"} {
    file copy -force $from $to
  } else {
    set f [open $from]
    fconfigure $f -translation binary
    set t [open $to w]
    fconfigure $t -translation binary
    puts -nonewline $t [read $f [file size $from]]
    close $t
    close $f
  }
}

# If the library is compiled with the SQLITE_DEFAULT_AUTOVACUUM macro set
# to non-zero, then set the global variable $AUTOVACUUM to 1.
set AUTOVACUUM $sqlite_options(default_autovacuum)