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# See the file LICENSE for redistribution information.
#
# Copyright (c) 1996-2002
# Sleepycat Software. All rights reserved.
#
# $Id: memp003.tcl,v 1.1.1.1 2003/11/20 22:13:57 toshok Exp $
#
# TEST memp003
# TEST Test reader-only/writer process combinations; we use the access methods
# TEST for testing.
proc memp003 { } {
#
# Multiple processes not supported by private memory so don't
# run memp003_body with -private.
#
memp003_body ""
memp003_body "-system_mem -shm_key 1"
}
proc memp003_body { flags } {
global alphabet
source ./include.tcl
puts "Memp003: {$flags} Reader/Writer tests"
if { [mem_chk $flags] == 1 } {
return
}
env_cleanup $testdir
set psize 1024
set nentries 500
set testfile mpool.db
set t1 $testdir/t1
# Create an environment that the two processes can share, with
# 20 pages per cache.
set c [list 0 [expr $psize * 20 * 3] 3]
set dbenv [eval {berkdb_env \
-create -lock -home $testdir -cachesize $c} $flags]
error_check_good dbenv [is_valid_env $dbenv] TRUE
# First open and create the file.
set db [berkdb_open -env $dbenv -create -truncate \
-mode 0644 -pagesize $psize -btree $testfile]
error_check_good dbopen/RW [is_valid_db $db] TRUE
set did [open $dict]
set txn ""
set count 0
puts "\tMemp003.a: create database"
set keys ""
# Here is the loop where we put and get each key/data pair
while { [gets $did str] != -1 && $count < $nentries } {
lappend keys $str
set ret [eval {$db put} $txn {$str $str}]
error_check_good put $ret 0
set ret [eval {$db get} $txn {$str}]
error_check_good get $ret [list [list $str $str]]
incr count
}
close $did
error_check_good close [$db close] 0
# Now open the file for read-only
set db [berkdb_open -env $dbenv -rdonly $testfile]
error_check_good dbopen/RO [is_substr $db db] 1
puts "\tMemp003.b: verify a few keys"
# Read and verify a couple of keys; saving them to check later
set testset ""
for { set i 0 } { $i < 10 } { incr i } {
set ndx [berkdb random_int 0 [expr $nentries - 1]]
set key [lindex $keys $ndx]
if { [lsearch $testset $key] != -1 } {
incr i -1
continue;
}
# The remote process stuff is unhappy with
# zero-length keys; make sure we don't pick one.
if { [llength $key] == 0 } {
incr i -1
continue
}
lappend testset $key
set ret [eval {$db get} $txn {$key}]
error_check_good get/RO $ret [list [list $key $key]]
}
puts "\tMemp003.c: retrieve and modify keys in remote process"
# Now open remote process where we will open the file RW
set f1 [open |$tclsh_path r+]
puts $f1 "source $test_path/test.tcl"
puts $f1 "flush stdout"
flush $f1
set c [concat "{" [list 0 [expr $psize * 20 * 3] 3] "}" ]
set remote_env [send_cmd $f1 \
"berkdb_env -create -lock -home $testdir -cachesize $c $flags"]
error_check_good remote_dbenv [is_valid_env $remote_env] TRUE
set remote_db [send_cmd $f1 "berkdb_open -env $remote_env $testfile"]
error_check_good remote_dbopen [is_valid_db $remote_db] TRUE
foreach k $testset {
# Get the key
set ret [send_cmd $f1 "$remote_db get $k"]
error_check_good remote_get $ret [list [list $k $k]]
# Now replace the key
set ret [send_cmd $f1 "$remote_db put $k $k$k"]
error_check_good remote_put $ret 0
}
puts "\tMemp003.d: verify changes in local process"
foreach k $testset {
set ret [eval {$db get} $txn {$key}]
error_check_good get_verify/RO $ret [list [list $key $key$key]]
}
puts "\tMemp003.e: Fill up the cache with dirty buffers"
foreach k $testset {
# Now rewrite the keys with BIG data
set data [replicate $alphabet 32]
set ret [send_cmd $f1 "$remote_db put $k $data"]
error_check_good remote_put $ret 0
}
puts "\tMemp003.f: Get more pages for the read-only file"
dump_file $db $txn $t1 nop
puts "\tMemp003.g: Sync from the read-only file"
error_check_good db_sync [$db sync] 0
error_check_good db_close [$db close] 0
set ret [send_cmd $f1 "$remote_db close"]
error_check_good remote_get $ret 0
# Close the environment both remotely and locally.
set ret [send_cmd $f1 "$remote_env close"]
error_check_good remote:env_close $ret 0
close $f1
reset_env $dbenv
}
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