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# See the file LICENSE for redistribution information.
#
# Copyright (c) 2004,2007 Oracle. All rights reserved.
#
# $Id: recd023.tcl,v 12.8 2007/05/17 15:15:55 bostic Exp $
#
# TEST recd023
# TEST Test recover of reverse split.
#
proc recd023 { method args } {
source ./include.tcl
env_cleanup $testdir
set tnum "023"
if { [is_btree $method] != 1 && [is_rbtree $method] != 1 } {
puts "Skipping recd$tnum for method $method"
return
}
set args [convert_args $method $args]
set omethod [convert_method $method]
puts "Recd$tnum ($omethod $args): Recovery of reverse split."
set testfile recd$tnum.db
puts "\tRecd$tnum.a: Create environment and database."
set flags "-create -txn -home $testdir"
set env_cmd "berkdb_env $flags"
set env [eval $env_cmd]
error_check_good env [is_valid_env $env] TRUE
set pagesize 512
set oflags "$omethod -auto_commit \
-pagesize $pagesize -create -mode 0644 $args"
set db [eval {berkdb_open} -env $env $oflags $testfile]
error_check_good dbopen [is_valid_db $db] TRUE
# Write to database -- enough to fill at least 3 levels.
puts "\tRecd$tnum.b: Create a 3 level btree database."
set nentries 1000
set datastr [repeat x 45]
for { set i 1 } { $i < $nentries } { incr i } {
set key a$i
set ret [$db put $key [chop_data $method $datastr]]
error_check_good put $ret 0
}
# Verify we have enough levels.
set levels [stat_field $db stat "Levels"]
error_check_good 3_levels [expr $levels >= 3] 1
# Save the original database.
file copy -force $testdir/$testfile $testdir/$testfile.save
# Delete enough pieces to collapse the tree.
puts "\tRecd$tnum.c: Do deletes to collapse database."
for { set count 2 } { $count < 10 } { incr count } {
error_check_good db_del [$db del a$count] 0
}
for { set count 15 } { $count < 100 } { incr count } {
error_check_good db_del [$db del a$count] 0
}
for { set count 150 } { $count < 1000 } { incr count } {
error_check_good db_del [$db del a$count] 0
}
error_check_good db_close [$db close] 0
error_check_good verify_dir [verify_dir $testdir "\tRecd$tnum.d: "] 0
# Overwrite the current database with the saved database.
file copy -force $testdir/$testfile.save $testdir/$testfile
error_check_good log_flush [$env log_flush] 0
error_check_good env_close [$env close] 0
# Recover the saved database to roll forward and apply the deletes.
set env [berkdb_env -create -txn -home $testdir -recover]
error_check_good env_open [is_valid_env $env] TRUE
error_check_good log_flush [$env log_flush] 0
error_check_good env_close [$env close] 0
error_check_good verify_dir [verify_dir $testdir "\tRecd$tnum.e: "] 0
}
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