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Diffstat (limited to 'storage/bdb/test/test042.tcl')
| -rw-r--r-- | storage/bdb/test/test042.tcl | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/storage/bdb/test/test042.tcl b/storage/bdb/test/test042.tcl new file mode 100644 index 00000000000..9f444b8349c --- /dev/null +++ b/storage/bdb/test/test042.tcl @@ -0,0 +1,181 @@ +# See the file LICENSE for redistribution information. +# +# Copyright (c) 1996-2002 +# Sleepycat Software. All rights reserved. +# +# $Id: test042.tcl,v 11.37 2002/09/05 17:23:07 sandstro Exp $ +# +# TEST test042 +# TEST Concurrent Data Store test (CDB) +# TEST +# TEST Multiprocess DB test; verify that locking is working for the +# TEST concurrent access method product. +# TEST +# TEST Use the first "nentries" words from the dictionary. Insert each with +# TEST self as key and a fixed, medium length data string. Then fire off +# TEST multiple processes that bang on the database. Each one should try to +# TEST read and write random keys. When they rewrite, they'll append their +# TEST pid to the data string (sometimes doing a rewrite sometimes doing a +# TEST partial put). Some will use cursors to traverse through a few keys +# TEST before finding one to write. + +proc test042 { method {nentries 1000} args } { + global encrypt + + # + # 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] + if { $encrypt != 0 } { + puts "Test042 skipping for security" + return + } + test042_body $method $nentries 0 $args + test042_body $method $nentries 1 $args +} + +proc test042_body { method nentries alldb args } { + source ./include.tcl + + if { $alldb } { + set eflag "-cdb -cdb_alldb" + } else { + set eflag "-cdb" + } + puts "Test042: CDB Test ($eflag) $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 [eval {berkdb_env -create} $eflag -home $testdir] + error_check_good dbenv [is_valid_env $env] TRUE + + # Env is created, now set up database + test042_dbinit $env $nentries $method $oargs $testfile 0 + if { $alldb } { + for { set i 1 } {$i < $procs} {incr i} { + test042_dbinit $env $nentries $method $oargs \ + $testfile $i + } + } + + # Remove old mpools and Open/create the lock and mpool regions + error_check_good env:close:$env [$env close] 0 + set ret [berkdb envremove -home $testdir] + error_check_good env_remove $ret 0 + + set env [eval {berkdb_env -create} $eflag -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} { + if { $alldb } { + set tf $testfile$i + } else { + set tf ${testfile}0 + } + puts "exec $tclsh_path $test_path/wrap.tcl \ + mdbscript.tcl $testdir/test042.$i.log \ + $method $testdir $tf $nentries $iter $i $procs &" + set p [exec $tclsh_path $test_path/wrap.tcl \ + mdbscript.tcl $testdir/test042.$i.log $method \ + $testdir $tf $nentries $iter $i $procs &] + lappend pidlist $p + } + puts "Test042: $procs independent processes now running" + watch_procs $pidlist + + # 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]] + } +} + +proc test042_dbinit { env nentries method oargs tf ext } { + global datastr + source ./include.tcl + + set omethod [convert_method $method] + set db [eval {berkdb_open -env $env -create \ + -mode 0644 $omethod} $oargs {$tf$ext}] + error_check_good dbopen [is_valid_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 loop $tf$ext" + 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 +} |