# See the file LICENSE for redistribution information.
#
# Copyright (c) 1996-2003
#	Sleepycat Software.  All rights reserved.
#
# $Id: recd002.tcl,v 11.31 2003/01/08 05:51:06 bostic Exp $
#
# TEST	recd002
# TEST	Split recovery tests.  For every known split log message, makes sure
# TEST	that we exercise redo, undo, and do-nothing condition.
proc recd002 { method {select 0} args} {
	source ./include.tcl
	global rand_init

	set args [convert_args $method $args]
	set omethod [convert_method $method]

	set pgindex [lsearch -exact $args "-pagesize"]
	if { $pgindex != -1 } {
		puts "Recd002: skipping for specific pagesizes"
		return
	}
	berkdb srand $rand_init

	# Queues don't do splits, so we don't really need the small page
	# size and the small page size is smaller than the record, so it's
	# a problem.
	if { [string compare $omethod "-queue"] == 0 } {
		set pagesize 4096
	} else {
		set pagesize 512
	}
	puts "Recd002: $method split recovery tests"

	env_cleanup $testdir
	set testfile recd002.db
	set testfile2 recd002-2.db
	set eflags \
	    "-create -txn -lock_max 2000 -home $testdir"

	puts "\tRecd002.a: creating environment"
	set env_cmd "berkdb_env $eflags"
	set dbenv [eval $env_cmd]
	error_check_bad dbenv $dbenv NULL

	# Create the databases. We will use a small page size so that splits
	# happen fairly quickly.
	set oflags "-create $args $omethod -mode 0644 -env $dbenv\
	    -pagesize $pagesize $testfile"
	set db [eval {berkdb_open} $oflags]
	error_check_bad db_open $db NULL
	error_check_good db_open [is_substr $db db] 1
	error_check_good db_close [$db close] 0
	set oflags "-create $args $omethod -mode 0644 -env $dbenv\
	    -pagesize $pagesize $testfile2"
	set db [eval {berkdb_open} $oflags]
	error_check_bad db_open $db NULL
	error_check_good db_open [is_substr $db db] 1
	error_check_good db_close [$db close] 0
	reset_env $dbenv

	# List of recovery tests: {CMD MSG} pairs
	set slist {
		{ {populate DB $omethod TXNID $n 0 0} "Recd002.b: splits"}
		{ {unpopulate DB TXNID $r} "Recd002.c: Remove keys"}
	}

	# If pages are 512 bytes, then adding 512 key/data pairs
	# should be more than sufficient.
	set n 512
	set r [expr $n / 2 ]
	foreach pair $slist {
		set cmd [subst [lindex $pair 0]]
		set msg [lindex $pair 1]
		if { $select != 0 } {
			set tag [lindex $msg 0]
			set tail [expr [string length $tag] - 2]
			set tag [string range $tag $tail $tail]
			if { [lsearch $select $tag] == -1 } {
				continue
			}
		}
		op_recover abort $testdir $env_cmd $testfile $cmd $msg
		op_recover commit $testdir $env_cmd $testfile $cmd $msg
		#
		# Note that since prepare-discard ultimately aborts
		# the txn, it must come before prepare-commit.
		#
		op_recover prepare-abort $testdir $env_cmd $testfile2 \
			$cmd $msg
		op_recover prepare-discard $testdir $env_cmd $testfile2 \
			$cmd $msg
		op_recover prepare-commit $testdir $env_cmd $testfile2 \
			$cmd $msg
	}

	puts "\tRecd002.d: Verify db_printlog can read logfile"
	set tmpfile $testdir/printlog.out
	set stat [catch {exec $util_path/db_printlog -h $testdir \
	    > $tmpfile} ret]
	error_check_good db_printlog $stat 0
	fileremove $tmpfile
}
