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# See the file LICENSE for redistribution information.
#
# Copyright (c) 2009 Oracle. All rights reserved.
#
# $Id$
#
# TEST mut003
# TEST Try doing mutex operations out of order. Make sure
# TEST we get appropriate errors.
proc mut003 { } {
source ./include.tcl
env_cleanup $testdir
puts "Mut003: Out of order mutex operations."
# Allocate a mutex. Try to unlock it before it's locked.
puts "\tMut003.a: Try to unlock a mutex that's not locked."
set env [berkdb_env_noerr -create -home $testdir]
set mutex [$env mutex]
catch { $env mutex_unlock $mutex } res
error_check_good \
already_unlocked [is_substr $res "lock already unlocked"] 1
env_cleanup $testdir
# Allocate and lock a mutex. Try to unlock it twice.
puts "\tMut003.b: Try to unlock a mutex twice."
set env [berkdb_env_noerr -create -home $testdir]
set mutex [$env mutex]
error_check_good mutex_lock [$env mutex_lock $mutex] 0
error_check_good mutex_unlock [$env mutex_unlock $mutex] 0
catch { $env mutex_unlock $mutex } res
error_check_good \
already_unlocked [is_substr $res "lock already unlocked"] 1
env_cleanup $testdir
# Allocate and free a mutex. Then try to lock it.
puts "\tMut003.c: Try to lock a freed mutex."
set env [berkdb_env_noerr -create -home $testdir]
set mutex [$env mutex]
error_check_good mutex_free [$env mutex_free $mutex] 0
catch { $env mutex_lock $mutex } res
# error_check_good \
# allocation_error [is_substr $res "lock already unlocked"] 1
env_cleanup $testdir
# Allocate and lock a mutex. Try to free it before it's unlocked.
puts "\tMut003.d: Try to free a still-locked mutex."
set env [berkdb_env_noerr -create -home $testdir]
set mutex [$env mutex]
error_check_good mutex_lock [$env mutex_lock $mutex] 0
catch { $env mutex_free $mutex } res
# error_check_good \
# allocation_error [is_substr $res "lock already unlocked"] 1
env_cleanup $testdir
}
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