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Diffstat (limited to 'bdb/test/test042.tcl')
| -rw-r--r-- | bdb/test/test042.tcl | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/bdb/test/test042.tcl b/bdb/test/test042.tcl new file mode 100644 index 00000000000..232cb3a6b0e --- /dev/null +++ b/bdb/test/test042.tcl @@ -0,0 +1,149 @@ +# See the file LICENSE for redistribution information. +# +# Copyright (c) 1996, 1997, 1998, 1999, 2000 +# Sleepycat Software. All rights reserved. +# +# $Id: test042.tcl,v 11.24 2000/08/25 14:21:56 sue Exp $ +# +# DB Test 42 {access method} +# +# Multiprocess DB test; verify that locking is working for the concurrent +# access method product. +# +# Use the first "nentries" words from the dictionary. Insert each with self +# as key and a fixed, medium length data string. Then fire off multiple +# processes that bang on the database. Each one should try to read and write +# random keys. When they rewrite, they'll append their pid to the data string +# (sometimes doing a rewrite sometimes doing a partial put). Some will use +# cursors to traverse through a few keys before finding one to write. + +set datastr abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz + +proc test042 { method {nentries 1000} args } { + global datastr + source ./include.tcl + + # + # If we are using an env, then skip this test. It needs its own. + set eindex [lsearch -exact $args "-env"] + if { $eindex != -1 } { + incr eindex + set env [lindex $args $eindex] + puts "Test042 skipping for env $env" + return + } + set args [convert_args $method $args] + set omethod [convert_method $method] + + puts "Test042: CDB Test $method $nentries" + + # Set initial parameters + set do_exit 0 + set iter 10000 + set procs 5 + + # Process arguments + set oargs "" + for { set i 0 } { $i < [llength $args] } {incr i} { + switch -regexp -- [lindex $args $i] { + -dir { incr i; set testdir [lindex $args $i] } + -iter { incr i; set iter [lindex $args $i] } + -procs { incr i; set procs [lindex $args $i] } + -exit { set do_exit 1 } + default { append oargs " " [lindex $args $i] } + } + } + + # Create the database and open the dictionary + set testfile test042.db + set t1 $testdir/t1 + set t2 $testdir/t2 + set t3 $testdir/t3 + + env_cleanup $testdir + + set env [berkdb env -create -cdb -home $testdir] + error_check_good dbenv [is_valid_widget $env env] TRUE + + set db [eval {berkdb_open -env $env -create -truncate \ + -mode 0644 $omethod} $oargs {$testfile}] + error_check_good dbopen [is_valid_widget $db db] TRUE + + set did [open $dict] + + set pflags "" + set gflags "" + set txn "" + set count 0 + + # Here is the loop where we put each key/data pair + puts "\tTest042.a: put/get loop" + while { [gets $did str] != -1 && $count < $nentries } { + if { [is_record_based $method] == 1 } { + set key [expr $count + 1] + } else { + set key $str + } + set ret [eval {$db put} \ + $txn $pflags {$key [chop_data $method $datastr]}] + error_check_good put:$db $ret 0 + incr count + } + close $did + error_check_good close:$db [$db close] 0 + + # Database is created, now set up environment + + # Remove old mpools and Open/create the lock and mpool regions + error_check_good env:close:$env [$env close] 0 + set ret [berkdb envremove -home $testdir] + error_check_good env_remove $ret 0 + + set env [berkdb env -create -cdb -home $testdir] + error_check_good dbenv [is_valid_widget $env env] TRUE + + if { $do_exit == 1 } { + return + } + + # Now spawn off processes + berkdb debug_check + puts "\tTest042.b: forking off $procs children" + set pidlist {} + + for { set i 0 } {$i < $procs} {incr i} { + puts "exec $tclsh_path $test_path/wrap.tcl \ + mdbscript.tcl $testdir/test042.$i.log \ + $method $testdir $testfile $nentries $iter $i $procs &" + set p [exec $tclsh_path $test_path/wrap.tcl \ + mdbscript.tcl $testdir/test042.$i.log $method \ + $testdir $testfile $nentries $iter $i $procs &] + lappend pidlist $p + } + puts "Test042: $procs independent processes now running" + watch_procs + + # Check for test failure + set e [eval findfail [glob $testdir/test042.*.log]] + error_check_good "FAIL: error message(s) in log files" $e 0 + + # Test is done, blow away lock and mpool region + reset_env $env +} + +# If we are renumbering, then each time we delete an item, the number of +# items in the file is temporarily decreased, so the highest record numbers +# do not exist. To make sure this doesn't happen, we never generate the +# highest few record numbers as keys. +# +# For record-based methods, record numbers begin at 1, while for other keys, +# we begin at 0 to index into an array. +proc rand_key { method nkeys renum procs} { + if { $renum == 1 } { + return [berkdb random_int 1 [expr $nkeys - $procs]] + } elseif { [is_record_based $method] == 1 } { + return [berkdb random_int 1 $nkeys] + } else { + return [berkdb random_int 0 [expr $nkeys - 1]] + } +} |