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103 lines
3.1 KiB
Tcl
103 lines
3.1 KiB
Tcl
# See the file LICENSE for redistribution information.
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#
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# Copyright (c) 2006, 2011 Oracle and/or its affiliates. All rights reserved.
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#
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# $Id$
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#
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# TEST test122
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# TEST Tests of multi-version concurrency control.
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# TEST
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# TEST MVCC and databases that turn multi-version on and off.
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proc test122 { method {tnum "122"} args } {
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source ./include.tcl
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# This test needs its own env.
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set eindex [lsearch -exact $args "-env"]
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if { $eindex != -1 } {
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incr eindex
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set env [lindex $args $eindex]
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puts "Test$tnum skipping for env $env"
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return
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}
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# MVCC is not allowed with queue methods.
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if { [is_queue $method] == 1 } {
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puts "Test$tnum skipping for method $method"
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return
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}
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puts "\tTest$tnum ($method): Turning MVCC on and off."
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set args [convert_args $method $args]
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set omethod [convert_method $method]
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set encargs ""
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set args [split_encargs $args encargs]
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set pageargs ""
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split_pageargs $args pageargs
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set filename "test.db"
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# Create transactional env. Don't specify -multiversion to
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# the env, because we need to turn it on and off.
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env_cleanup $testdir
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puts "\tTest$tnum.a: Creating txn env."
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set cacheargs " -cachesize {0 524288 1} "
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set env [eval {berkdb_env}\
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-create $cacheargs -txn $pageargs $encargs -home $testdir]
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error_check_good env_open [is_valid_env $env] TRUE
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# Open database.
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puts "\tTest$tnum.b: Creating -multiversion db."
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set db [eval {berkdb_open} -multiversion \
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-create -auto_commit -env $env $omethod $args $filename]
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error_check_good db_open [is_valid_db $db] TRUE
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# Put some data. The tcl interface automatically does it
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# transactionally.
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set niter 100
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for { set i 1 } { $i < $niter } { incr i } {
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set key $i
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set data DATA.$i
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error_check_good db_put [eval {$db put} $key $data] 0
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}
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# Open a read-only handle and also a txn -snapshot handle.
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puts "\tTest$tnum.c: Open read-only handle and txn -snapshot handle."
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set t [$env txn -snapshot]
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set txn "-txn $t"
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set snapshotdb [eval {berkdb_open} \
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$txn -env $env $omethod $args $filename]
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error_check_good snapshotdb [is_valid_db $snapshotdb] TRUE
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set readonlydb [eval {berkdb_open} \
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-auto_commit -env $env $omethod $args $filename]
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error_check_good readonlydb [is_valid_db $readonlydb] TRUE
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# Overwrite all the data. The read-only handle will see the
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# new data and the -snapshot handle will see the old data.
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puts "\tTest$tnum.d: Overwrite data."
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for { set i 1 } { $i < $niter } { incr i } {
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set key $i
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set data NEWDATA.$i
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error_check_good db_put [eval {$db put} $key $data] 0
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}
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puts "\tTest$tnum.e: Check data through handles."
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for { set i 1 } { $i < $niter } { incr i } {
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set r_ret [eval {$readonlydb get} $i]
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set s_ret [eval {$snapshotdb get} $txn $i]
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set r_key [lindex [lindex $r_ret 0] 0]
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set r_data [lindex [lindex $r_ret 0] 1]
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set s_key [lindex [lindex $s_ret 0] 0]
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set s_data [lindex [lindex $s_ret 0] 1]
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}
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error_check_good t_commit [$t commit] 0
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# Clean up.
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error_check_good db_close [$db close] 0
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error_check_good snapshotdb_close [$snapshotdb close] 0
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error_check_good readonlydb_close [$readonlydb close] 0
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error_check_good env_close [$env close] 0
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}
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