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# See the file LICENSE for redistribution information.
#
# Copyright (c) 1999-2002
# Sleepycat Software. All rights reserved.
#
# $Id: test088.tcl,v 11.12 2002/08/05 19:23:51 sandstro Exp $
#
# TEST test088
# TEST Test of cursor stability across btree splits with very
# TEST deep trees (a variant of test048). [#2514]
proc test088 { method args } {
global errorCode alphabet
source ./include.tcl
set tstn 088
set args [convert_args $method $args]
if { [is_btree $method] != 1 } {
puts "Test$tstn skipping for method $method."
return
}
set pgindex [lsearch -exact $args "-pagesize"]
if { $pgindex != -1 } {
puts "Test088: skipping for specific pagesizes"
return
}
set method "-btree"
puts "\tTest$tstn: Test of cursor stability across btree splits."
set key "key$alphabet$alphabet$alphabet"
set data "data$alphabet$alphabet$alphabet"
set txn ""
set flags ""
puts "\tTest$tstn.a: Create $method database."
set txnenv 0
set eindex [lsearch -exact $args "-env"]
#
# If we are using an env, then testfile should just be the db name.
# Otherwise it is the test directory and the name.
if { $eindex == -1 } {
set testfile $testdir/test$tstn.db
set env NULL
} else {
set testfile test$tstn.db
incr eindex
set env [lindex $args $eindex]
set txnenv [is_txnenv $env]
if { $txnenv == 1 } {
append args " -auto_commit "
}
set testdir [get_home $env]
}
set t1 $testdir/t1
cleanup $testdir $env
set ps 512
set txn ""
set oflags "-create -pagesize $ps -mode 0644 $args $method"
set db [eval {berkdb_open} $oflags $testfile]
error_check_good dbopen [is_valid_db $db] TRUE
set nkeys 5
# Fill page w/ key/data pairs.
#
puts "\tTest$tstn.b: Fill page with $nkeys small key/data pairs."
for { set i 0 } { $i < $nkeys } { incr i } {
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
set ret [eval {$db put} $txn {${key}00000$i $data$i}]
error_check_good dbput $ret 0
if { $txnenv == 1 } {
error_check_good txn [$t commit] 0
}
}
# get db ordering, set cursors
puts "\tTest$tstn.c: Set cursors on each of $nkeys pairs."
# if mkeys is above 1000, need to adjust below for lexical order
set mkeys 30000
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
set mkeys 300
}
for {set i 0; set ret [$db get ${key}00000$i]} {\
$i < $nkeys && [llength $ret] != 0} {\
incr i; set ret [$db get ${key}00000$i]} {
set key_set($i) [lindex [lindex $ret 0] 0]
set data_set($i) [lindex [lindex $ret 0] 1]
set dbc [eval {$db cursor} $txn]
set dbc_set($i) $dbc
error_check_good db_cursor:$i [is_substr $dbc_set($i) $db] 1
set ret [$dbc_set($i) get -set $key_set($i)]
error_check_bad dbc_set($i)_get:set [llength $ret] 0
}
puts "\tTest$tstn.d: Add $mkeys pairs to force splits."
for {set i $nkeys} { $i < $mkeys } { incr i } {
if { $i >= 10000 } {
set ret [eval {$db put} $txn {${key}0$i $data$i}]
} elseif { $i >= 1000 } {
set ret [eval {$db put} $txn {${key}00$i $data$i}]
} elseif { $i >= 100 } {
set ret [eval {$db put} $txn {${key}000$i $data$i}]
} elseif { $i >= 10 } {
set ret [eval {$db put} $txn {${key}0000$i $data$i}]
} else {
set ret [eval {$db put} $txn {${key}00000$i $data$i}]
}
error_check_good dbput:more $ret 0
}
puts "\tTest$tstn.e: Make sure splits happened."
# XXX cannot execute stat in presence of txns and cursors.
if { $txnenv == 0 } {
error_check_bad stat:check-split [is_substr [$db stat] \
"{{Internal pages} 0}"] 1
}
puts "\tTest$tstn.f: Check to see that cursors maintained reference."
for {set i 0} { $i < $nkeys } {incr i} {
set ret [$dbc_set($i) get -current]
error_check_bad dbc$i:get:current [llength $ret] 0
set ret2 [$dbc_set($i) get -set $key_set($i)]
error_check_bad dbc$i:get:set [llength $ret2] 0
error_check_good dbc$i:get(match) $ret $ret2
}
puts "\tTest$tstn.g: Delete added keys to force reverse splits."
for {set i $nkeys} { $i < $mkeys } { incr i } {
if { $i >= 10000 } {
set ret [eval {$db del} $txn {${key}0$i}]
} elseif { $i >= 1000 } {
set ret [eval {$db del} $txn {${key}00$i}]
} elseif { $i >= 100 } {
set ret [eval {$db del} $txn {${key}000$i}]
} elseif { $i >= 10 } {
set ret [eval {$db del} $txn {${key}0000$i}]
} else {
set ret [eval {$db del} $txn {${key}00000$i}]
}
error_check_good dbput:more $ret 0
}
puts "\tTest$tstn.h: Verify cursor reference."
for {set i 0} { $i < $nkeys } {incr i} {
set ret [$dbc_set($i) get -current]
error_check_bad dbc$i:get:current [llength $ret] 0
set ret2 [$dbc_set($i) get -set $key_set($i)]
error_check_bad dbc$i:get:set [llength $ret2] 0
error_check_good dbc$i:get(match) $ret $ret2
}
puts "\tTest$tstn.i: Cleanup."
# close cursors
for {set i 0} { $i < $nkeys } {incr i} {
error_check_good dbc_close:$i [$dbc_set($i) close] 0
}
if { $txnenv == 1 } {
error_check_good txn [$t commit] 0
}
error_check_good dbclose [$db close] 0
puts "\tTest$tstn complete."
}
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