"

 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:

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

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

"

"{ Package: 'stx:libjava' }"

Process subclass:#JavaProcess

	instanceVariableNames:'suspendedContext'

	classVariableNames:''

	poolDictionaries:''

	category:'Languages-Java-Classes'

!

Object subclass:#Helper

	instanceVariableNames:'javaThreadObject javaProcess'

	classVariableNames:''

	poolDictionaries:''

	privateIn:JavaProcess

!

!JavaProcess class methodsFor:'documentation'!

copyright

"

 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:

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

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

"

! !

!JavaProcess class methodsFor:'instance creation'!

newHelper

    ^Helper new

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

! !

!JavaProcess methodsFor:'accessing'!

suspendedContext

    |con|

"/    suspendedContext notNil ifTrue:[^ suspendedContext].

"/    state ~~ #debug ifTrue:[

"/        "/ hide non-JAVA contexts ...

"/        con := super suspendedContext.

"/        [con notNil] whileTrue:[

"/            (con isMemberOf:JavaContext) ifTrue:[^ con].

"/            con := con sender.

"/        ].

"/    ].

    ^ super suspendedContext

    "Created: / 7.5.1996 / 09:02:03 / cg"

    "Modified: / 4.2.1998 / 20:44:31 / cg"

!

suspendedContext:aContext

    suspendedContext := aContext

    "Created: 7.5.1996 / 09:02:12 / cg"

! !

!JavaProcess methodsFor:'interrupts'!

clearInterruptActions

    interruptActions := nil

    "Created: 14.8.1997 / 17:27:22 / cg"

!

isInterrupted

    ^ interruptActions notNil

    "Created: 14.8.1997 / 17:26:40 / cg"

!

markInterrupted

    super interruptWith:[]

    "Modified: / 10.4.1998 / 15:20:58 / cg"

    "Created: / 10.4.1998 / 15:21:15 / cg"

! !

!JavaProcess methodsFor:'suspend & resume'!

terminateNoSignal

    | jThread |

    jThread := Java threads keyAtValue: self.

    self breakPoint: #mh.

    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>"

    "Modified: / 22-11-2011 / 13:25:50 / Marcel Hlopko <hlopkmar@fel.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: [

                Logger 

                    log: ('thread ' , procName , ' aborted - restarting process.')

                    severity: #info

                    facility: 'JVM'.

                ex restart.

            ] ifFalse: [

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

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

                        ifTrue: [

                            Logger 

                                log: ('thread ' , procName , ' aborted - restarting process.')

                                severity: #info

                                facility: 'JVM'.

                            ex restart

                        ]

                        ifFalse: [

                            Logger 

                                log: ('thread ' , procName , ' aborted.')

                                severity: #info

                                facility: 'JVM'.

                        ]

            ].

        ]

        do: [

            [

                JavaVM javaExceptionSignal 

                    handle: [

                        :ex | 

                        | exClass |

                        procName := javaProcess name.

                        exClass := ex parameter class.

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

                            Logger 

                                log: ('thread ' , procName , ' terminated')

                                severity: #info

                                facility: 'JVM'.

                        ] ifFalse: [

                            Logger 

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

                                        , exClass name)

                                severity: #info

                                facility: 'JVM'.

                        ].

                        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: [

                                        Logger 

                                            log: ('thread ' , javaProcess name , ' terminated')

                                            severity: #info

                                            facility: 'JVM'.

                                    ].

                                ] ensure: [

                                    javaThreadObject perform: #'exit()V'.

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

                                        Logger 

                                            log: ('after exit of thread ' , javaProcess name)

                                            severity: #info

                                            facility: 'JVM'.

                                    ]

                                ]

                            ]

                    ]

            ] ensure: [

                JavaVM leaveMonitorsOfProcess: 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>"

    "Modified: / 17-11-2011 / 21:30:52 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"

! !

!JavaProcess class methodsFor:'documentation'!

version

    ^ '$Id$'

!

version_SVN

    ^ '$Id$'

! !