COPYRIGHT (c) 1996-2011 by Claus Gittinger

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko

                            SWING Research Group, Czech Technical University in Prague

 Parts of the code written by Claus Gittinger are under following

 license:

 Parts of the code written at SWING Reasearch Group [1] are MIT licensed:

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

 [1] Code written at SWING Research Group contain a signature

     of one of the above copright owners.

"

Object subclass:#Helper

	instanceVariableNames:'javaThreadObject javaProcess'

	classVariableNames:''

	poolDictionaries:''

	privateIn:JavaProcess

!

 COPYRIGHT (c) 1996-2011 by Claus Gittinger

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko

                            SWING Research Group, Czech Technical University in Prague

 Parts of the code written by Claus Gittinger are under following

 license:

 Parts of the code written at SWING Reasearch Group [1] are MIT licensed:

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

 [1] Code written at SWING Research Group contain a signature

     of one of the above copright owners.

! !

!JavaProcess class methodsFor:'instance creation'!

newHelper

    ^Helper new

    "Created: / 15-12-2010 / 11:11:53 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!JavaProcess methodsFor:'suspend & resume'!

terminateNoSignal

    | jThread |

    jThread := Java threads keyAtValue: self.

    JavaVM wakeup: jThread.

    super terminateNoSignal

    "Created: / 15-12-2010 / 00:18:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 15-12-2010 / 11:19:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!JavaProcess::Helper methodsFor:'initialization'!

javaProcess:something

    javaProcess := something.

!

javaThreadObject:something

    javaThreadObject := something.

! !

!JavaProcess::Helper methodsFor:'support'!

value

    |procName|

    Object abortSignal 

        handle:[:ex | 

            procName := javaProcess name.

            (procName startsWith:'JAVA-AWT-EventQueue') ifTrue:[

                ('JAVA [info]: thread ' , procName , ' aborted - restarting process.') 

                    infoPrintCR.

                ex restart.

            ] ifFalse:[

                (javaProcess == (Smalltalk at:#'JavaVM:JavaScreenUpdaterThread') 

                    or:[javaProcess == (Smalltalk at:#'JavaVM:JavaEventQueueThread')]) 

                        ifTrue:[

                            ('JAVA [info]: thread ' , procName , ' aborted - restarting process.') 

                                infoPrintCR.

                            ex restart

                        ]

                        ifFalse:[('JAVA [info]: thread ' , procName , ' aborted.') infoPrintCR.]

            ].

        ]

        do:[

            [

                JavaVM javaExceptionSignal 

                    handle:[:ex | 

                        |exClass|

                        procName := javaProcess name.

                        exClass := ex parameter class.

                        exClass == (Java at:'java.lang.ThreadDeath') ifTrue:[

                            ('JAVA: thread ' , procName , ' terminated') infoPrintCR.

                        ] ifFalse:[

                            Transcript 

                                showCR:('JAVA: thread ''' , procName , ''' terminated with exception: ' 

                                        , exClass name).

                        ].

                        ex return.

                    ]

                    do:[

                        Object messageNotUnderstoodSignal 

                            handle:[:ex | 

                                |

                                "/ remap doesNotUnderstand with nil-receiver to

                                "/ a nullPointerException ...

                                 con m|

                                con := ex suspendedContext.

                                con receiver isNil ifTrue:[

                                    ((m := con sender method) notNil and:[m isJavaMethod]) ifTrue:[

                                        JavaVM throwNullPointerException.

                                        AbortSignal raise.

                                        "/ ex proceed.

                                    ]

                                ].

                                ex reject.

                            ]

                            do:[

                                "/ Transcript showCR:(Timestamp now printString , 'start thread: ', stProcess name).

                                javaThreadObject perform:#'run()V'.

                                (Smalltalk at:#'JavaVM:ThreadTrace') == true ifTrue:[

                                    ('JAVA: thread ' , javaProcess name , ' terminated') infoPrintCR.

                                ].

                                javaThreadObject perform:#'exit()V'.

                                (Smalltalk at:#'JavaVM:ThreadTrace') == true ifTrue:[

                                    ('JAVA: after exit of thread ' , javaProcess name) infoPrintCR.

                                ]

                            ]

                    ]

            ] ensure:[

                |monitors|

                monitors := (Smalltalk at:#'JavaVM:EnteredMonitorsPerProcess') 

                            at:javaProcess

                            ifAbsent:nil.

                monitors notNil ifTrue:[

                    monitors do:[:obj | 

                        |mon|

                        mon := JavaVM monitorFor:obj.

                        mon notNil ifTrue:[

                            mon owningProcess == javaProcess ifTrue:[

                                ('JAVA: release monitor owned by dying thread: ' , javaProcess name) 

                                    infoPrintCR.

                                self breakPoint: #jv.

                                mon exit

                            ].

                        ].

                    ].

                    (Smalltalk at:#'JavaVM:EnteredMonitorsPerProcess') removeKey:javaProcess.

                    javaProcess == (Smalltalk at:#'JavaVM:JavaScreenUpdaterThread') ifTrue:[

                        Smalltalk at:#'JavaVM:JavaScreenUpdaterThread' put:nil.

                    ].

                    javaProcess == (Smalltalk at:#'JavaVM:JavaEventQueueThread') ifTrue:[

                        Smalltalk at:#'JavaVM:JavaEventQueueThread' put:nil.

                    ].

"/                                    screenUpdaterClass := Java at:'sun.awt.ScreenUpdater'.    

"/                                    screenUpdaterClass notNil ifTrue:[

"/                                        screenUpdaterClass instVarNamed:'updater' put:nil.

"/                                    ].

                ].

                Java threads removeKey:javaThreadObject ifAbsent:[].

            ]

        ]

    "Created: / 15-12-2010 / 11:06:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

    ^ '$Id: JavaProcess.st,v 1.15 2011/08/18 18:42:48 vrany Exp $'

!

version_SVN

    ^ '$Id: JavaProcess.st,v 1.15 2011/08/18 18:42:48 vrany Exp $'

! !