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# See the file LICENSE for redistribution information.
#
# Copyright (c) 1996-2002
# Sleepycat Software. All rights reserved.
#
# $Id: mpoolscript.tcl,v 1.1.1.1 2003/11/20 22:13:57 toshok Exp $
#
# Random multiple process mpool tester.
# Usage: mpoolscript dir id numiters numfiles numpages sleepint
# dir: lock directory.
# id: Unique identifier for this process.
# maxprocs: Number of procs in this test.
# numiters: Total number of iterations.
# pgsizes: Pagesizes for the different files. Length of this item indicates
# how many files to use.
# numpages: Number of pages per file.
# sleepint: Maximum sleep interval.
# flags: Flags for env open
source ./include.tcl
source $test_path/test.tcl
source $test_path/testutils.tcl
set usage \
"mpoolscript dir id maxprocs numiters pgsizes numpages sleepint flags"
# Verify usage
if { $argc != 8 } {
puts stderr "FAIL:[timestamp] Usage: $usage"
puts $argc
exit
}
# Initialize arguments
set dir [lindex $argv 0]
set id [lindex $argv 1]
set maxprocs [lindex $argv 2]
set numiters [ lindex $argv 3 ]
set pgsizes [ lindex $argv 4 ]
set numpages [ lindex $argv 5 ]
set sleepint [ lindex $argv 6 ]
set flags [ lindex $argv 7]
# Initialize seed
global rand_init
berkdb srand $rand_init
# Give time for all processes to start up.
tclsleep 10
puts -nonewline "Beginning execution for $id: $maxprocs $dir $numiters"
puts " $pgsizes $numpages $sleepint"
flush stdout
# Figure out how small/large to make the cache
set max 0
foreach i $pgsizes {
if { $i > $max } {
set max $i
}
}
set cache [list 0 [expr $maxprocs * ([lindex $pgsizes 0] + $max)] 1]
set env_cmd {berkdb_env -lock -cachesize $cache -home $dir}
set e [eval $env_cmd $flags]
error_check_good env_open [is_valid_env $e] TRUE
# Now open files
set mpools {}
set nfiles 0
foreach psize $pgsizes {
set mp [$e mpool -create -mode 0644 -pagesize $psize file$nfiles]
error_check_good memp_fopen:$nfiles [is_valid_mpool $mp $e] TRUE
lappend mpools $mp
incr nfiles
}
puts "Establishing long-term pin on file 0 page $id for process $id"
# Set up the long-pin page
set locker [$e lock_id]
set lock [$e lock_get write $locker 0:$id]
error_check_good lock_get [is_valid_lock $lock $e] TRUE
set mp [lindex $mpools 0]
set master_page [$mp get -create $id]
error_check_good mp_get:$master_page [is_valid_page $master_page $mp] TRUE
set r [$master_page init MASTER$id]
error_check_good page_init $r 0
# Release the lock but keep the page pinned
set r [$lock put]
error_check_good lock_put $r 0
# Main loop. On each iteration, we'll check every page in each of
# of the files. On any file, if we see the appropriate tag in the
# field, we'll rewrite the page, else we won't. Keep track of
# how many pages we actually process.
set pages 0
for { set iter 0 } { $iter < $numiters } { incr iter } {
puts "[timestamp]: iteration $iter, $pages pages set so far"
flush stdout
for { set fnum 1 } { $fnum < $nfiles } { incr fnum } {
if { [expr $fnum % 2 ] == 0 } {
set pred [expr ($id + $maxprocs - 1) % $maxprocs]
} else {
set pred [expr ($id + $maxprocs + 1) % $maxprocs]
}
set mpf [lindex $mpools $fnum]
for { set p 0 } { $p < $numpages } { incr p } {
set lock [$e lock_get write $locker $fnum:$p]
error_check_good lock_get:$fnum:$p \
[is_valid_lock $lock $e] TRUE
# Now, get the page
set pp [$mpf get -create $p]
error_check_good page_get:$fnum:$p \
[is_valid_page $pp $mpf] TRUE
if { [$pp is_setto $pred] == 0 || [$pp is_setto 0] == 0 } {
# Set page to self.
set r [$pp init $id]
error_check_good page_init:$fnum:$p $r 0
incr pages
set r [$pp put -dirty]
error_check_good page_put:$fnum:$p $r 0
} else {
error_check_good page_put:$fnum:$p [$pp put] 0
}
error_check_good lock_put:$fnum:$p [$lock put] 0
}
}
tclsleep [berkdb random_int 1 $sleepint]
}
# Now verify your master page, release its pin, then verify everyone else's
puts "$id: End of run verification of master page"
set r [$master_page is_setto MASTER$id]
error_check_good page_check $r 1
set r [$master_page put -dirty]
error_check_good page_put $r 0
set i [expr ($id + 1) % $maxprocs]
set mpf [lindex $mpools 0]
while { $i != $id } {
set p [$mpf get -create $i]
error_check_good mp_get [is_valid_page $p $mpf] TRUE
if { [$p is_setto MASTER$i] != 1 } {
puts "Warning: Master page $i not set."
}
error_check_good page_put:$p [$p put] 0
set i [expr ($i + 1) % $maxprocs]
}
# Close files
foreach i $mpools {
set r [$i close]
error_check_good mpf_close $r 0
}
# Close environment system
set r [$e close]
error_check_good env_close $r 0
puts "[timestamp] $id Complete"
flush stdout
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