libdb/test/tcl/lock001.tcl
2011-09-13 13:44:24 -04:00

121 lines
3.4 KiB
Tcl

# See the file LICENSE for redistribution information.
#
# Copyright (c) 1996, 2011 Oracle and/or its affiliates. All rights reserved.
#
# $Id$
#
# TEST lock001
# TEST Make sure that the basic lock tests work. Do some simple gets
# TEST and puts for a single locker.
proc lock001 { {iterations 1000} } {
source ./include.tcl
global lock_curid
global lock_maxid
set save_curid $lock_curid
set save_maxid $lock_maxid
# Set defaults
# Adjusted to make exact match of isqrt
#set conflicts { 3 0 0 0 0 0 1 0 1 1}
#set conflicts { 3 0 0 0 0 1 0 1 1}
set conflicts { 0 0 0 0 0 1 0 1 1}
set nmodes [isqrt [llength $conflicts]]
# Cleanup
env_cleanup $testdir
# Open the region we'll use for testing.
set eflags "-create -lock -home $testdir -mode 0644 \
-lock_conflict {$nmodes {$conflicts}}"
set env [eval {berkdb_env} $eflags]
error_check_good env [is_valid_env $env] TRUE
error_check_good lock_id_set \
[$env lock_id_set $lock_curid $lock_maxid] 0
puts "Lock001: test basic lock operations"
set locker [$env lock_id]
# Get and release each type of lock
puts "\tLock001.a: get and release each type of lock"
foreach m {ng write read} {
set obj obj$m
set lockp [$env lock_get $m $locker $obj]
error_check_good lock_get:a [is_blocked $lockp] 0
error_check_good lock_get:a [is_substr $lockp $env] 1
set ret [ $lockp put ]
error_check_good lock_put $ret 0
}
# Get a bunch of locks for the same locker; these should work
set obj OBJECT
puts "\tLock001.b: Get a bunch of locks for the same locker"
foreach m {ng write read} {
set lockp [$env lock_get $m $locker $obj ]
lappend locklist $lockp
error_check_good lock_get:b [is_blocked $lockp] 0
error_check_good lock_get:b [is_substr $lockp $env] 1
}
release_list $locklist
set locklist {}
# Check that reference counted locks work
puts "\tLock001.c: reference counted locks."
for {set i 0} { $i < 10 } {incr i} {
set lockp [$env lock_get -nowait write $locker $obj]
error_check_good lock_get:c [is_blocked $lockp] 0
error_check_good lock_get:c [is_substr $lockp $env] 1
lappend locklist $lockp
}
release_list $locklist
# Finally try some failing locks
set locklist {}
foreach i {ng write read} {
set lockp [$env lock_get $i $locker $obj]
lappend locklist $lockp
error_check_good lock_get:d [is_blocked $lockp] 0
error_check_good lock_get:d [is_substr $lockp $env] 1
}
# Change the locker
set locker [$env lock_id]
set blocklist {}
# Skip NO_LOCK lock.
puts "\tLock001.d: Change the locker, acquire read and write."
foreach i {write read} {
catch {$env lock_get -nowait $i $locker $obj} ret
error_check_good lock_get:e [is_substr $ret "not granted"] 1
#error_check_good lock_get:e [is_substr $lockp $env] 1
#error_check_good lock_get:e [is_blocked $lockp] 0
}
# Now release original locks
release_list $locklist
# Now re-acquire blocking locks
set locklist {}
puts "\tLock001.e: Re-acquire blocking locks."
foreach i {write read} {
set lockp [$env lock_get -nowait $i $locker $obj ]
error_check_good lock_get:f [is_substr $lockp $env] 1
error_check_good lock_get:f [is_blocked $lockp] 0
lappend locklist $lockp
}
# Now release new locks
release_list $locklist
error_check_good free_id [$env lock_id_free $locker] 0
error_check_good envclose [$env close] 0
}
# Blocked locks appear as lockmgrN.lockM\nBLOCKED
proc is_blocked { l } {
if { [string compare $l BLOCKED ] == 0 } {
return 1
} else {
return 0
}
}