# 2008 June 9
#
# 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.
#
#***********************************************************************
#
# Test that it is possible to have two open blob handles on a single
# blob object.
#
# $Id: incrblob2.test,v 1.11 2009/06/29 06:00:37 danielk1977 Exp $
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
ifcapable {!autovacuum || !pragma || !incrblob} {
finish_test
return
}
do_test incrblob2-1.0 {
execsql {
CREATE TABLE blobs(id INTEGER PRIMARY KEY, data BLOB);
INSERT INTO blobs VALUES(NULL, zeroblob(5000));
INSERT INTO blobs VALUES(NULL, zeroblob(5000));
INSERT INTO blobs VALUES(NULL, zeroblob(5000));
INSERT INTO blobs VALUES(NULL, zeroblob(5000));
}
} {}
foreach iOffset [list 0 256 4094] {
do_test incrblob2-1.$iOffset.1 {
set fd [db incrblob blobs data 1]
puts $fd "[string repeat x $iOffset]SQLite version 3.6.0"
close $fd
} {}
do_test incrblob2-1.$iOffset.2 {
set fd1 [db incrblob blobs data 1]
set fd2 [db incrblob blobs data 1]
fconfigure $fd1 -buffering none
fconfigure $fd2 -buffering none
if {$iOffset != 0} {
seek $fd2 $iOffset start
seek $fd1 $iOffset start
}
read $fd1 6
} {SQLite}
do_test incrblob2-1.$iOffset.3 {
read $fd2 6
} {SQLite}
do_test incrblob2-1.$iOffset.4 {
seek $fd2 $iOffset start
seek $fd1 $iOffset start
puts -nonewline $fd2 "etiLQS"
} {}
do_test incrblob2-1.$iOffset.5 {
seek $fd1 $iOffset start
read $fd1 6
} {etiLQS}
do_test incrblob2-1.$iOffset.6 {
seek $fd2 $iOffset start
read $fd2 6
} {etiLQS}
do_test incrblob2-1.$iOffset.7 {
seek $fd1 $iOffset start
read $fd1 6
} {etiLQS}
do_test incrblob2-1.$iOffset.8 {
close $fd1
close $fd2
} {}
}
#--------------------------------------------------------------------------
foreach iOffset [list 0 256 4094] {
do_test incrblob2-2.$iOffset.1 {
set fd1 [db incrblob blobs data 1]
seek $fd1 [expr $iOffset - 5000] end
fconfigure $fd1 -buffering none
set fd2 [db incrblob blobs data 1]
seek $fd2 [expr $iOffset - 5000] end
fconfigure $fd2 -buffering none
puts -nonewline $fd1 "123456"
} {}
do_test incrblob2-2.$iOffset.2 {
read $fd2 6
} {123456}
do_test incrblob2-2.$iOffset.3 {
close $fd1
close $fd2
} {}
}
do_test incrblob2-3.1 {
set fd1 [db incrblob blobs data 1]
fconfigure $fd1 -buffering none
} {}
do_test incrblob2-3.2 {
execsql {
INSERT INTO blobs VALUES(5, zeroblob(10240));
}
} {}
do_test incrblob2-3.3 {
set rc [catch { read $fd1 6 } msg]
list $rc $msg
} {0 123456}
do_test incrblob2-3.4 {
close $fd1
} {}
#--------------------------------------------------------------------------
# The following tests - incrblob2-4.* - test that blob handles are
# invalidated at the correct times.
#
do_test incrblob2-4.1 {
unset -nocomplain data
db eval BEGIN
db eval { CREATE TABLE t1(id INTEGER PRIMARY KEY, data BLOB); }
for {set ii 1} {$ii < 100} {incr ii} {
set data [string repeat "blob$ii" 500]
db eval { INSERT INTO t1 VALUES($ii, $data) }
}
db eval COMMIT
} {}
proc aborted_handles {} {
global handles
set aborted {}
for {set ii 1} {$ii < 100} {incr ii} {
set str "blob$ii"
set nByte [string length $str]
set iOffset [expr $nByte * $ii * 2]
set rc [catch {sqlite3_blob_read $handles($ii) $iOffset $nByte} msg]
if {$rc && $msg eq "SQLITE_ABORT"} {
lappend aborted $ii
} else {
if {$rc || $msg ne $str} {
error "blob $ii: $msg"
}
}
}
set aborted
}
do_test incrblob2-4.2 {
for {set ii 1} {$ii < 100} {incr ii} {
set handles($ii) [db incrblob t1 data $ii]
}
aborted_handles
} {}
# Update row 3. This should abort handle 3 but leave all others untouched.
#
do_test incrblob2-4.3 {
db eval {UPDATE t1 SET data = data || '' WHERE id = 3}
aborted_handles
} {3}
# Test that a write to handle 3 also returns SQLITE_ABORT.
#
do_test incrblob2-4.3.1 {
set rc [catch {sqlite3_blob_write $::handles(3) 10 HELLO} msg]
list $rc $msg
} {1 SQLITE_ABORT}
# Delete row 14. This should abort handle 6 but leave all others untouched.
#
do_test incrblob2-4.4 {
db eval {DELETE FROM t1 WHERE id = 14}
aborted_handles
} {3 14}
# Change the rowid of row 15 to 102. Should abort handle 15.
#
do_test incrblob2-4.5 {
db eval {UPDATE t1 SET id = 102 WHERE id = 15}
aborted_handles
} {3 14 15}
# Clobber row 92 using INSERT OR REPLACE.
#
do_test incrblob2-4.6 {
db eval {INSERT OR REPLACE INTO t1 VALUES(92, zeroblob(1000))}
aborted_handles
} {3 14 15 92}
# Clobber row 65 using UPDATE OR REPLACE on row 35. This should abort
# handles 35 and 65.
#
do_test incrblob2-4.7 {
db eval {UPDATE OR REPLACE t1 SET id = 65 WHERE id = 35}
aborted_handles
} {3 14 15 35 65 92}
# Insert a couple of new rows. This should not invalidate any handles.
#
do_test incrblob2-4.9 {
db eval {INSERT INTO t1 SELECT NULL, data FROM t1}
aborted_handles
} {3 14 15 35 65 92}
# Delete all rows from 1 to 25. This should abort all handles up to 25.
#
do_test incrblob2-4.9 {
db eval {DELETE FROM t1 WHERE id >=1 AND id <= 25}
aborted_handles
} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 35 65 92}
# Delete the whole table (this will use sqlite3BtreeClearTable()). All handles
# should now be aborted.
#
do_test incrblob2-4.10 {
db eval {DELETE FROM t1}
aborted_handles
} {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99}
do_test incrblob2-4.1.X {
for {set ii 1} {$ii < 100} {incr ii} {
close $handles($ii)
}
} {}
#--------------------------------------------------------------------------
# The following tests - incrblob2-5.* - test that in shared cache an open
# blob handle counts as a read-lock on its table.
#
ifcapable shared_cache {
db close
set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
do_test incrblob2-5.1 {
sqlite3 db test.db
sqlite3 db2 test.db
execsql {
INSERT INTO t1 VALUES(1, 'abcde');
}
} {}
do_test incrblob2-5.2 {
catchsql { INSERT INTO t1 VALUES(2, 'fghij') } db2
} {0 {}}
do_test incrblob2-5.3 {
set blob [db incrblob t1 data 1]
catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
} {1 {database table is locked}}
do_test incrblob2-5.4 {
close $blob
execsql BEGIN db2
catchsql { INSERT INTO t1 VALUES(4, 'pqrst') } db2
} {0 {}}
do_test incrblob2-5.5 {
set rc [catch { db incrblob -readonly t1 data 1 } msg]
list $rc $msg
} {1 {database table is locked: t1}}
do_test incrblob2-5.6 {
execsql { PRAGMA read_uncommitted=1 }
set blob [db incrblob -readonly t1 data 4]
read $blob
} {pqrst}
do_test incrblob2-5.7 {
catchsql { INSERT INTO t1 VALUES(3, 'klmno') } db2
} {0 {}}
do_test incrblob2-5.8 {
close $blob
} {}
db2 close
db close
sqlite3_enable_shared_cache $::enable_shared_cache
}
#--------------------------------------------------------------------------
# The following tests - incrblob2-6.* - test a specific scenario that might
# be causing an error.
#
sqlite3 db test.db
do_test incrblob2-6.1 {
execsql {
DELETE FROM t1;
INSERT INTO t1 VALUES(1, zeroblob(100));
}
set rdHandle [db incrblob -readonly t1 data 1]
set wrHandle [db incrblob t1 data 1]
sqlite3_blob_read $rdHandle 0 100
sqlite3_blob_write $wrHandle 0 ABCDEF
close $wrHandle
close $rdHandle
} {}
do_test incrblob2-6.2 {
set rdHandle [db incrblob -readonly t1 data 1]
sqlite3_blob_read $rdHandle 0 2
} {AB}
if {$::tcl_platform(pointerSize)>=8} {
do_test incrblob2-6.2b {
set rc [catch {
# Prior to 2015-02-07, the following caused a segfault due to
# integer overflow.
sqlite3_blob_read $rdHandle 2147483647 2147483647
} errmsg]
if {[string match {out of memory in *test_blob.c} $errmsg]} {
set errmsg SQLITE_ERROR
}
lappend rc $errmsg
} {1 SQLITE_ERROR}
}
do_test incrblob2-6.2c {
set rc [catch {
# Prior to 2015-02-07, the following caused a segfault due to
# integer overflow.
sqlite3_blob_read $rdHandle 2147483647 100
} errmsg]
lappend rc $errmsg
} {1 SQLITE_ERROR}
do_test incrblob2-6.3 {
set wrHandle [db incrblob t1 data 1]
sqlite3_blob_write $wrHandle 0 ZZZZZZZZZZ
sqlite3_blob_read $rdHandle 2 4
} {ZZZZ}
do_test incrblob2-6.3b {
set rc [catch {
# Prior to 2015-02-07, the following caused a segfault due to
# integer overflow.
sqlite3_blob_write $wrHandle 2147483647 YYYYYYYYYYYYYYYYYY
} errmsg]
lappend rc $errmsg
} {1 SQLITE_ERROR}
do_test incrblob2-6.3c {
sqlite3_blob_read $rdHandle 2 4
} {ZZZZ}
do_test incrblob2-6.4 {
close $wrHandle
close $rdHandle
} {}
sqlite3_memory_highwater 1
do_test incrblob2-7.1 {
db eval {
CREATE TABLE t2(B BLOB);
INSERT INTO t2 VALUES(zeroblob(10 * 1024 * 1024));
}
expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
} {1}
do_test incrblob2-7.2 {
set h [db incrblob t2 B 1]
expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
} {1}
do_test incrblob2-7.3 {
seek $h 0 end
tell $h
} [expr 10 * 1024 * 1024]
do_test incrblob2-7.4 {
expr {[sqlite3_memory_highwater]<(5 * 1024 * 1024)}
} {1}
do_test incrblob2-7.5 {
close $h
} {}
#---------------------------------------------------------------------------
# The following tests, incrblob2-8.*, test that nothing terrible happens
# when a statement transaction is rolled back while there are open
# incremental-blob handles. At one point an assert() was failing when
# this was attempted.
#
do_test incrblob2-8.1 {
execsql BEGIN
set h [db incrblob t2 B 1]
set rc [catch {
db eval {SELECT rowid FROM t2} { execsql "DROP TABLE t2" }
} msg]
list $rc $msg
} {1 {database table is locked}}
do_test incrblob2-8.2 {
close $h
execsql COMMIT
} {}
do_test incrblob2-8.3 {
execsql {
CREATE TABLE t3(a INTEGER UNIQUE, b TEXT);
INSERT INTO t3 VALUES(1, 'aaaaaaaaaaaaaaaaaaaa');
INSERT INTO t3 VALUES(2, 'bbbbbbbbbbbbbbbbbbbb');
INSERT INTO t3 VALUES(3, 'cccccccccccccccccccc');
INSERT INTO t3 VALUES(4, 'dddddddddddddddddddd');
INSERT INTO t3 VALUES(5, 'eeeeeeeeeeeeeeeeeeee');
}
} {}
do_test incrblob2-8.4 {
execsql BEGIN
set h [db incrblob t3 b 3]
sqlite3_blob_read $h 0 20
} {cccccccccccccccccccc}
do_test incrblob2-8.5 {
catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
} {1 {UNIQUE constraint failed: t3.a}}
do_test incrblob2-8.6 {
catchsql {UPDATE t3 SET a = 6 WHERE a > 3}
} {1 {UNIQUE constraint failed: t3.a}}
do_test incrblob2-8.7 {
sqlite3_blob_read $h 0 20
} {cccccccccccccccccccc}
do_test incrblob2-8.8 {
catchsql {UPDATE t3 SET a = 6 WHERE a = 3 OR a = 5}
} {1 {UNIQUE constraint failed: t3.a}}
do_test incrblob2-8.9 {
set rc [catch {sqlite3_blob_read $h 0 20} msg]
list $rc $msg
} {1 SQLITE_ABORT}
do_test incrblob2-8.X {
close $h
} {}
finish_test