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# See the file LICENSE for redistribution information.
#
# Copyright (c) 1996-2009 Oracle. All rights reserved.
#
# $Id$
#
# TEST test056
# TEST Cursor maintenance during deletes.
# TEST Check if deleting a key when a cursor is on a duplicate of that
# TEST key works.
proc test056 { method args } {
global errorInfo
source ./include.tcl
set args [convert_args $method $args]
set omethod [convert_method $method]
append args " -create -mode 0644 -dup "
if { [is_record_based $method] == 1 || [is_rbtree $method] } {
puts "Test056: skipping for method $method"
return
}
# Btree with compression does not support unsorted duplicates.
if { [is_compressed $args] == 1 } {
puts "Test056 skipping for btree with compression."
return
}
puts "Test056: $method delete of key in presence of cursor"
# Create the database and open the dictionary
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/test056.db
set env NULL
} else {
set testfile test056.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]
}
cleanup $testdir $env
set flags ""
set txn ""
set db [eval {berkdb_open} $args {$omethod $testfile}]
error_check_good db_open:dup [is_valid_db $db] TRUE
puts "\tTest056.a: Key delete with cursor on duplicate."
# Put three keys in the database
for { set key 1 } { $key <= 3 } {incr key} {
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
set r [eval {$db put} $txn $flags {$key datum$key}]
error_check_good put $r 0
if { $txnenv == 1 } {
error_check_good txn [$t commit] 0
}
}
# Retrieve keys sequentially so we can figure out their order
set i 1
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
set curs [eval {$db cursor} $txn]
error_check_good curs_open:dup [is_valid_cursor $curs $db] TRUE
for {set d [$curs get -first] } { [llength $d] != 0 } {
set d [$curs get -next] } {
set key_set($i) [lindex [lindex $d 0] 0]
incr i
}
# Now put in a bunch of duplicates for key 2
for { set d 1 } { $d <= 5 } {incr d} {
set r [eval {$db put} $txn $flags {$key_set(2) dup_$d}]
error_check_good dup:put $r 0
}
# Now put the cursor on a duplicate of key 2
# Now set the cursor on the first of the duplicate set.
set r [$curs get -set $key_set(2)]
error_check_bad cursor_get:DB_SET [llength $r] 0
set k [lindex [lindex $r 0] 0]
set d [lindex [lindex $r 0] 1]
error_check_good curs_get:DB_SET:key $k $key_set(2)
error_check_good curs_get:DB_SET:data $d datum$key_set(2)
# Now do two nexts
set r [$curs get -next]
error_check_bad cursor_get:DB_NEXT [llength $r] 0
set k [lindex [lindex $r 0] 0]
set d [lindex [lindex $r 0] 1]
error_check_good curs_get:DB_NEXT:key $k $key_set(2)
error_check_good curs_get:DB_NEXT:data $d dup_1
set r [$curs get -next]
error_check_bad cursor_get:DB_NEXT [llength $r] 0
set k [lindex [lindex $r 0] 0]
set d [lindex [lindex $r 0] 1]
error_check_good curs_get:DB_NEXT:key $k $key_set(2)
error_check_good curs_get:DB_NEXT:data $d dup_2
# Now do the delete
set r [eval {$db del} $txn $flags {$key_set(2)}]
error_check_good delete $r 0
# Now check the get current on the cursor.
set ret [$curs get -current]
error_check_good curs_after_del $ret ""
# Now check that the rest of the database looks intact. There
# should be only two keys, 1 and 3.
set r [$curs get -first]
error_check_bad cursor_get:DB_FIRST [llength $r] 0
set k [lindex [lindex $r 0] 0]
set d [lindex [lindex $r 0] 1]
error_check_good curs_get:DB_FIRST:key $k $key_set(1)
error_check_good curs_get:DB_FIRST:data $d datum$key_set(1)
set r [$curs get -next]
error_check_bad cursor_get:DB_NEXT [llength $r] 0
set k [lindex [lindex $r 0] 0]
set d [lindex [lindex $r 0] 1]
error_check_good curs_get:DB_NEXT:key $k $key_set(3)
error_check_good curs_get:DB_NEXT:data $d datum$key_set(3)
set r [$curs get -next]
error_check_good cursor_get:DB_NEXT [llength $r] 0
puts "\tTest056.b:\
Cursor delete of first item, followed by cursor FIRST"
# Set to beginning
set r [$curs get -first]
error_check_bad cursor_get:DB_FIRST [llength $r] 0
set k [lindex [lindex $r 0] 0]
set d [lindex [lindex $r 0] 1]
error_check_good curs_get:DB_FIRST:key $k $key_set(1)
error_check_good curs_get:DB_FIRST:data $d datum$key_set(1)
# Now do delete
error_check_good curs_del [$curs del] 0
# Now do DB_FIRST
set r [$curs get -first]
error_check_bad cursor_get:DB_FIRST [llength $r] 0
set k [lindex [lindex $r 0] 0]
set d [lindex [lindex $r 0] 1]
error_check_good curs_get:DB_FIRST:key $k $key_set(3)
error_check_good curs_get:DB_FIRST:data $d datum$key_set(3)
error_check_good curs_close [$curs close] 0
if { $txnenv == 1 } {
error_check_good txn [$t commit] 0
}
error_check_good db_close [$db close] 0
}
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