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Comment:Work in progress converting tests from [testthread cancel] to [thread::cancel]
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SHA1: 558725498319a9083a1d81a0fbfd646551834773
User & Date: dgp 2011-11-01 18:53:11
Context
2011-11-03
14:37
* unix/tclUnixCompat.c (TclpGetPwNam, TclpGetPwUid, TclpGetGrNam) (TclpGetGrGid): Use the elaborat...
 check-in: ed2b08e566 user: dkf tags: trunk
2011-11-01
18:53
Work in progress converting tests from [testthread cancel] to [thread::cancel] check-in: 5587254983 user: dgp tags: trunk
14:39
merge mark check-in: 8fe91a8e59 user: dgp tags: trunk
Changes
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Changes to tests/thread.test.

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# Copyright (c) 1998-1999 by Scriptics Corporation.
# Copyright (c) 2006-2008 by Joe Mistachkin.  All rights reserved.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest
    namespace import -force ::tcltest::*
}

# Some tests require the testthread command

testConstraint testthread [expr {[info commands testthread] != {}}]
testConstraint thread [expr {0 == [catch {package require Thread 2.6}]}]

testConstraint notValgrind [expr {![testConstraint valgrind]}]

proc ThreadError {id info} {
    global threadId threadError
    set threadId $id
    set threadError $info








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# Copyright (c) 1998-1999 by Scriptics Corporation.
# Copyright (c) 2006-2008 by Joe Mistachkin.  All rights reserved.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest 2.2
    namespace import -force ::tcltest::*
}

# Some tests require the testthread command

testConstraint testthread [expr {[info commands testthread] != {}}]
testConstraint thread [expr {0 == [catch {package require Thread 2.7}]}]

testConstraint notValgrind [expr {![testConstraint valgrind]}]

proc ThreadError {id info} {
    global threadId threadError
    set threadId $id
    set threadError $info
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	    after 1
	}
	testthread errorproc ThreadError
	return [llength [testthread names]]
    }
}

test thread-1.1 {Tcl_ThreadObjCmd: no args} {testthread} {
    list [catch {testthread} msg] $msg
} {1 {wrong # args: should be "testthread option ?arg ...?"}}
test thread-1.2 {Tcl_ThreadObjCmd: bad option} {testthread} {
    list [catch {testthread foo} msg] $msg
} {1 {bad option "foo": must be cancel, create, event, exit, id, join, names, send, wait, or errorproc}}
test thread-1.3 {Tcl_ThreadObjCmd: initial thread list} {thread} {
    llength [thread::names]
} 1
test thread-1.4 {Tcl_ThreadObjCmd: thread create } {thread} {
    set serverthread [thread::create -preserved]
    set numthreads [llength [thread::names]]
    thread::release $serverthread








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	    after 1
	}
	testthread errorproc ThreadError
	return [llength [testthread names]]
    }
}







test thread-1.3 {Tcl_ThreadObjCmd: initial thread list} {thread} {
    llength [thread::names]
} 1
test thread-1.4 {Tcl_ThreadObjCmd: thread create } {thread} {
    set serverthread [thread::create -preserved]
    set numthreads [llength [thread::names]]
    thread::release $serverthread
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} {1}
test thread-1.6 {Tcl_ThreadObjCmd: thread exit} {thread} {
    thread::create {{*}{}}
    update
    after 10
    llength [thread::names]
} {1}
test thread-1.7 {Tcl_ThreadObjCmd: thread id args} {testthread} {
    set x [catch {testthread id x} msg]
    list $x $msg
} {1 {wrong # args: should be "testthread id"}}
test thread-1.8 {Tcl_ThreadObjCmd: thread id} {testthread} {
    string compare [testthread id] $mainThread
} {0}
test thread-1.9 {Tcl_ThreadObjCmd: thread names args} {testthread} {
    set x [catch {testthread names x} msg]
    list $x $msg
} {1 {wrong # args: should be "testthread names"}}
test thread-1.10 {Tcl_ThreadObjCmd: thread id} {testthread} {
    string compare [testthread names] $mainThread
} {0}
test thread-1.11 {Tcl_ThreadObjCmd: send args} {testthread} {
    set x [catch {testthread send} msg]
    list $x $msg
} {1 {wrong # args: should be "testthread send ?-async? id script"}}
test thread-1.12 {Tcl_ThreadObjCmd: send nonint} {testthread} {
    set x [catch {testthread send abc command} msg]
    list $x $msg
} {1 {expected integer but got "abc"}}
test thread-1.13 {Tcl_ThreadObjCmd: send args} {thread} {
    set serverthread [thread::create -preserved]
    set five [thread::send $serverthread {set x 5}]
    thread::release $serverthread
    set five
} 5
test thread-1.14 {Tcl_ThreadObjCmd: send bad id} {testthread} {
    set tid [expr $mainThread + 10]
    set x [catch {testthread send $tid {set x 5}} msg]
    list $x $msg
} {1 {invalid thread id}}
test thread-1.15 {Tcl_ThreadObjCmd: wait} {thread} {
    set serverthread [thread::create -preserved {set z 5 ; thread::wait}]
    set five [thread::send $serverthread {set z}]
    thread::release $serverthread
    set five
} 5
test thread-1.16 {Tcl_ThreadObjCmd: errorproc args} {testthread} {
    set x [catch {testthread errorproc foo bar} msg]
    list $x $msg
} {1 {wrong # args: should be "testthread errorproc proc"}}
test thread-1.17 {Tcl_ThreadObjCmd: errorproc change} {testthread} {
    testthread errorproc foo
    testthread errorproc ThreadError
} {}

# The tests above also cover:
# TclCreateThread, except when pthread_create fails
# NewThread, safe and regular
# ThreadErrorProc, except for printing to standard error

test thread-2.1 {ListUpdateInner and ListRemove} {thread} {








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} {1}
test thread-1.6 {Tcl_ThreadObjCmd: thread exit} {thread} {
    thread::create {{*}{}}
    update
    after 10
    llength [thread::names]
} {1}






















test thread-1.13 {Tcl_ThreadObjCmd: send args} {thread} {
    set serverthread [thread::create -preserved]
    set five [thread::send $serverthread {set x 5}]
    thread::release $serverthread
    set five
} 5





test thread-1.15 {Tcl_ThreadObjCmd: wait} {thread} {
    set serverthread [thread::create -preserved {set z 5 ; thread::wait}]
    set five [thread::send $serverthread {set z}]
    thread::release $serverthread
    set five
} 5









# The tests above also cover:
# TclCreateThread, except when pthread_create fails
# NewThread, safe and regular
# ThreadErrorProc, except for printing to standard error

test thread-2.1 {ListUpdateInner and ListRemove} {thread} {
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	}
	unset x
    }
    thread::release -wait $serverthread
} 0

# TIP #285: Script cancellation support
test thread-7.1 {cancel: args} {testthread} {






    set x [catch {testthread cancel} msg]


    list $x $msg









} {1 {wrong # args: should be "testthread cancel ?-unwind? id ?result?"}}
test thread-7.2 {cancel: nonint} {testthread} {
    set x [catch {testthread cancel abc} msg]
    list $x $msg




} {1 {expected integer but got "abc"}}
test thread-7.3 {cancel: bad id} {testthread} {


    set tid [expr $mainThread + 10]



    set x [catch {testthread cancel $tid} msg]


    list $x $msg









} {1 {invalid thread id}}

test thread-7.4 {cancel: pure bytecode loop} {testthread} {
    threadReap




    unset -nocomplain ::threadError ::threadId ::threadIdStarted




    set serverthread [testthread create -joinable {

	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {eval canceled}}
test thread-7.5 {cancel: pure inside-command loop} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    set while while
	    $while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {eval canceled}}
test thread-7.6 {cancel: pure bytecode loop -unwind} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel -unwind $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {eval unwound}}
test thread-7.7 {cancel: pure inside-command loop -unwind} {testthread} {
    threadReap

    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

    	  proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    set while while
	    $while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel -unwind $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {eval unwound}}
test thread-7.8 {cancel: pure bytecode loop custom result} {testthread} {
    threadReap

    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel $serverthread "the eval was canceled"]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]
} {{} 1 1 {the eval was canceled}}
test thread-7.9 {cancel: pure inside-command loop custom result} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
    set serverthread [testthread create -joinable {
    	  proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    set while while
	    $while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel $serverthread "the eval was canceled"]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]
} {{} 1 1 {the eval was canceled}}
test thread-7.10 {cancel: pure bytecode loop custom result -unwind} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
    set serverthread [testthread create -joinable {
	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel -unwind $serverthread "the eval was unwound"]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]
} {{} 1 1 {the eval was unwound}}
test thread-7.11 {cancel: pure inside-command loop custom result -unwind} {testthread} {
    threadReap

    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

    	  proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    set while while
	    $while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel -unwind $serverthread "the eval was unwound"]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {the eval was unwound}}
test thread-7.12 {cancel: after} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

	if {![info exists foo]} then {
	    # signal the primary thread that we are ready
	    # to be canceled now (we are running).
	    testthread send [testthread id -main] \
		    [list set ::threadIdStarted [testthread id]]
	    set foo 1
	}
	after 30000
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {eval canceled}}
test thread-7.13 {cancel: after -unwind} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

	if {![info exists foo]} then {
	    # signal the primary thread that we are ready
	    # to be canceled now (we are running).
	    testthread send [testthread id -main] \
		    [list set ::threadIdStarted [testthread id]]
	    set foo 1
	}
	after 30000
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel -unwind $serverthread]

    testthread join $serverthread

    while {[testthread event]} {}; # force events to service
    threadReap








    list $res [expr {[info exists ::threadIdStarted] ? \








		  $::threadIdStarted == $serverthread : 0}] \

	      [expr {[info exists ::threadId] ? \


		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {eval unwound}}
test thread-7.14 {cancel: vwait} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

	if {![info exists foo]} then {
	    # signal the primary thread that we are ready
	    # to be canceled now (we are running).
	    testthread send [testthread id -main] \
		    [list set ::threadIdStarted [testthread id]]
	    set foo 1
	}
	vwait forever
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]
} {{} 1 1 {eval canceled}}
test thread-7.15 {cancel: vwait -unwind} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted




    set serverthread [testthread create -joinable {




	if {![info exists foo]} then {
	    # signal the primary thread that we are ready
	    # to be canceled now (we are running).
	    testthread send [testthread id -main] \
		    [list set ::threadIdStarted [testthread id]]
	    set foo 1
	}
	vwait forever


    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel -unwind $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {eval unwound}}
test thread-7.16 {cancel: expr} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

	set i [interp create]
	interp alias $i testthread {} testthread
	$i eval {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    expr {[while {1} {incr x}]}
	}
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {eval canceled}}
test thread-7.17 {cancel: expr -unwind} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

	set i [interp create]
	interp alias $i testthread {} testthread
	$i eval {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }




	    expr {[while {1} {incr x}]}
	}
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel -unwind $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} {{} 1 1 {eval unwound}}
test thread-7.18 {cancel: expr bignum} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted

    set serverthread [testthread create -joinable {

	set i [interp create]
	interp alias $i testthread {} testthread
	$i eval {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    #
      # TODO: This will not cancel because libtommath
      #       does not check Tcl_Canceled.
      #
	    expr {2**99999}
	}
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]
} {{} 1 0 {}}
test thread-7.19 {cancel: expr bignum -unwind} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
    set serverthread [testthread create -joinable {
	set i [interp create]
	interp alias $i testthread {} testthread
	$i eval {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		testthread send [testthread id -main] \
			[list set ::threadIdStarted [testthread id]]
		set foo 1
	    }
	    #
      # TODO: This will not cancel because libtommath
      #       does not check Tcl_Canceled.
      #
	    expr {2**99999}
	}
    }]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted; after 1000
    set res [testthread cancel -unwind $serverthread]
    testthread join $serverthread
    while {[testthread event]} {}; # force events to service
    threadReap
    list $res [expr {[info exists ::threadIdStarted] ? \
		  $::threadIdStarted == $serverthread : 0}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]
} {{} 1 0 {}}
test thread-7.20 {cancel: subst} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
    set serverthread [testthread create -joinable {
	set i [interp create]
	interp alias $i testthread {} testthread
	$i eval {








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	}
	unset x
    }
    thread::release -wait $serverthread
} 0

# TIP #285: Script cancellation support
test thread-7.4 {cancel: pure bytecode loop} -constraints {thread} -setup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait ::threadIdStarted
    set res [thread::cancel $serverthread]
    vwait ::threadId
    thread::join $serverthread
    list $res [expr {$::threadIdStarted == $serverthread}] \
	      [expr {$::threadId == $serverthread}] \
	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval canceled}}
test thread-7.5 {cancel: pure inside-command loop} -constraints {thread} -setup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).
		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    set while while
	    $while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel $serverthread]
    vwait threadId
    thread::join $serverthread
    list $res [expr {$::threadIdStarted == $serverthread}] \
	      [expr {$::threadId == $serverthread}] \
	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval canceled}}
test thread-7.6 {cancel: pure bytecode loop -unwind} -constraints {thread} -setup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel -unwind $serverthread]
    vwait threadId

    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval unwound}}
test thread-7.7 {cancel: pure inside-command loop -unwind} -constraints thread -setup {

    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    set while while
	    $while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel -unwind $serverthread]
    vwait threadId

    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval unwound}}
test thread-7.8 {cancel: pure bytecode loop custom result} -constraints thread -setup {

    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel $serverthread "the eval was canceled"]
    vwait threadId

    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {the eval was canceled}}
test thread-7.9 {cancel: pure inside-command loop custom result} -constraints {
    thread
} -setup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    set while while
	    $while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel $serverthread "the eval was canceled"]
    vwait threadId

    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {the eval was canceled}}
test thread-7.10 {cancel: pure bytecode loop custom result -unwind} -constraints {
    thread
} -setup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel -unwind $serverthread "the eval was unwound"]


    vwait threadId





























    thread::join $serverthread



    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]


} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted



























} -result {{} 1 1 {the eval was unwound}}
test thread-7.11 {cancel: pure inside-command loop custom result -unwind} -constraints {
    thread
} -setup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	proc foobar {} {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    set while while
	    $while {1} {
		# No bytecode at all here...
	    }
	}
	foobar
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel -unwind $serverthread "the eval was unwound"]
    vwait threadId

    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {the eval was unwound}}
test thread-7.12 {cancel: after} -constraints thread -setup {

    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	if {![info exists foo]} then {
	    # signal the primary thread that we are ready
	    # to be canceled now (we are running).

	    thread::send %ID% [list set ::threadIdStarted [thread::id]]
	    set foo 1
	}
	after 30000
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel $serverthread]
    vwait threadId

    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval canceled}}
test thread-7.13 {cancel: after -unwind} -constraints thread -setup {

    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	if {![info exists foo]} then {
	    # signal the primary thread that we are ready
	    # to be canceled now (we are running).

	    thread::send %ID% [list set ::threadIdStarted [thread::id]]
	    set foo 1
	}
	after 30000
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel -unwind $serverthread]
    vwait threadId
    thread::join $serverthread
    list $res [expr {$::threadIdStarted == $serverthread}] \
	      [expr {$::threadId == $serverthread}] \
	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval unwound}}
test thread-7.14 {cancel: vwait} -constraints thread -setup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID [thread::id]] {
	if {![info exists foo]} then {
	    # signal the primary thread that we are ready
	    # to be canceled now (we are running).
	    thread::send %ID% [list set ::threadIdStarted [thread::id]]
	    set foo 1
	}
	vwait forever
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel $serverthread]
    vwait threadId
    thread::join $serverthread
    list $res [expr {$::threadIdStarted == $serverthread}] \
	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval canceled}}
test thread-7.15 {cancel: vwait -unwind} -constraints thread -setup {

    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	if {![info exists foo]} then {
	    # signal the primary thread that we are ready
	    # to be canceled now (we are running).

	    thread::send %ID% [list set ::threadIdStarted [thread::id]]
	    set foo 1
	}
	vwait forever
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel -unwind $serverthread]
    vwait threadId

    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]


} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval unwound}}
test thread-7.16 {cancel: expr} -constraints thread -setup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID [thread::id]] {
	set i [interp create]
	$i eval "package require -exact Thread [package present Thread]"
	$i eval {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }

	    expr {[while {1} {incr x}]}
	}
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel $serverthread]
    vwait threadId

    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval canceled}}
test thread-7.17 {cancel: expr -unwind} -constraints thread -setup {

    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	set i [interp create]
	$i eval "package require -exact Thread [package present Thread]"
	$i eval {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    expr {[while {1} {incr x}]}
	}
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel -unwind $serverthread]
    vwait threadId

    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \

	      [expr {$::threadId == $serverthread}] \

	      [lindex [split $::threadError \n] 0]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 1 {eval unwound}}
test thread-7.18 {cancel: expr bignum} -constraints thread -setup {

    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	set i [interp create]
	$i eval "package require -exact Thread [package present Thread]"
	$i eval {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    #
      # TODO: This will not cancel because libtommath
      #       does not check Tcl_Canceled.
      #
	    expr {2**99999}
	}
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted

    set res [thread::cancel $serverthread]
    after 1000 {set ::threadId timeout}
    vwait threadId
    thread::join $serverthread
    list $res [expr {$::threadIdStarted == $serverthread}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]
} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -result {{} 1 0 {}}
test thread-7.19 {cancel: expr bignum -unwind} -constraints thread -setup {

    unset -nocomplain ::threadError ::threadId ::threadIdStarted
} -body {
    set serverthread [thread::create -joinable \
	    [string map [list %ID% [thread::id]] {
	set i [interp create]
	$i eval "package require -exact Thread [package present Thread]"
	$i eval {
	    if {![info exists foo]} then {
		# signal the primary thread that we are ready
		# to be canceled now (we are running).

		thread::send %ID% [list set ::threadIdStarted [thread::id]]
		set foo 1
	    }
	    #
      # TODO: This will not cancel because libtommath
      #       does not check Tcl_Canceled.
      #
	    expr {2**99999}
	}
    }]]
    # wait for other thread to signal "ready to cancel"
    vwait threadIdStarted
    set res [thread::cancel -unwind $serverthread]
    after 1000 {set ::threadId timeout}
    vwait threadId
    thread::join $serverthread

    list $res [expr {$::threadIdStarted == $serverthread}] \
	      [expr {[info exists ::threadId] ? \
		  $::threadId == $serverthread : 0}] \
	      [expr {[info exists ::threadError] ? \
		  [lindex [split $::threadError \n] 0] : "" }]


} -cleanup {
    unset -nocomplain ::threadError ::threadId ::threadIdStarted






























} -result {{} 1 0 {}}
test thread-7.20 {cancel: subst} {testthread} {
    threadReap
    unset -nocomplain ::threadError ::threadId ::threadIdStarted
    set serverthread [testthread create -joinable {
	set i [interp create]
	interp alias $i testthread {} testthread
	$i eval {
︙︙

Changes to tests/unixNotfy.test. 

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# This file contains tests for tclUnixNotfy.c.
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands.  Sourcing this file into Tcl runs the tests and
# generates output for errors.  No output means no errors were found.
#
# Copyright (c) 1997 by Sun Microsystems, Inc.
# Copyright (c) 1998-1999 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.

# The tests should not be run if you have a notifier which is unable to
# detect infinite vwaits, as the tests below will hang. The presence of
# the "testthread" command indicates that this is the case.

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest 2
    namespace import -force ::tcltest::*
}

# When run in a Tk shell, these tests hang.
testConstraint noTk [expr {0 != [catch {package present Tk}]}]
testConstraint thread [expr {0 == [catch {package require Thread 2.6}]}]
testConstraint testthread [expr {[info commands testthread] != {}}]
# Darwin always uses a threaded notifier
testConstraint unthreaded [expr {
    (![info exist tcl_platform(threaded)] || !$tcl_platform(threaded))
    && $tcl_platform(os) ne "Darwin"
}]

# The next two tests will hang if threads are enabled because the notifier













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# This file contains tests for tclUnixNotfy.c.
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands.  Sourcing this file into Tcl runs the tests and
# generates output for errors.  No output means no errors were found.
#
# Copyright (c) 1997 by Sun Microsystems, Inc.
# Copyright (c) 1998-1999 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.





if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest 2
    namespace import -force ::tcltest::*
}

# When run in a Tk shell, these tests hang.
testConstraint noTk [expr {0 != [catch {package present Tk}]}]
testConstraint thread [expr {0 == [catch {package require Thread 2.6}]}]

# Darwin always uses a threaded notifier
testConstraint unthreaded [expr {
    (![info exist tcl_platform(threaded)] || !$tcl_platform(threaded))
    && $tcl_platform(os) ne "Darwin"
}]

# The next two tests will hang if threads are enabled because the notifier
︙︙

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