GDBDebugger.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Sun, 07 Sep 2014 22:44:55 +0100
changeset 36 095c4b0b74d3
parent 35 c17ecf90e446
child 37 a85f0c91f164
permissions -rw-r--r--
Added support for threads. Each thread group now knows it's threads.
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"{ Package: 'jv:libgdbs' }"
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Object subclass:#GDBDebugger
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	instanceVariableNames:'connection commandSequenceNumber inferiorStateSequenceNumber
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		inferiors'
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	classVariableNames:''
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	poolDictionaries:'GDBCommandStatus'
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	category:'GDB-Core'
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!
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!GDBDebugger class methodsFor:'instance creation'!
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new
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    ^ self newWithProcess: GDBUnixProcess new
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    "Modified: / 20-06-2014 / 21:44:53 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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newWithProcess: aGDBProcess
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    ^ self basicNew initializeWithProcess: aGDBProcess
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    "Created: / 20-06-2014 / 21:44:34 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!GDBDebugger methodsFor:'accessing'!
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announcer
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    ^ connection eventAnnouncer.
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    "Created: / 02-06-2014 / 23:06:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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inferiorForId: id
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    ^ inferiors ? #() detect:[:e | e id = id ] ifNone:[ 
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        self error: ('No inferior (thread group) with id ''%1'' found!!' bindWith: id)
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    ].
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    "Created: / 07-09-2014 / 21:22:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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inferiorStderr
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    ^ connection inferiorPTY master
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    "Created: / 09-06-2014 / 10:01:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 09-06-2014 / 18:26:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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inferiorStdin
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    ^ connection inferiorPTY master
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    "Created: / 09-06-2014 / 10:00:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 09-06-2014 / 18:27:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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inferiorStdout
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    ^ connection inferiorPTY master
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    "Created: / 09-06-2014 / 10:01:16 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 09-06-2014 / 18:27:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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inferiors
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    ^ inferiors
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! !
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!GDBDebugger methodsFor:'accessing-private'!
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currentInferiorStateSequnceNumber
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    ^ inferiorStateSequenceNumber
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    "Created: / 19-06-2014 / 22:22:08 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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nextCommandSequnceNumber
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    commandSequenceNumber := commandSequenceNumber + 1.
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    commandSequenceNumber == SmallInteger maxVal ifTrue:[ 
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        commandSequenceNumber := 0.
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    ].
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    ^ commandSequenceNumber
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    "Created: / 02-06-2014 / 23:48:19 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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nextInferiorStateSequnceNumber
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    inferiorStateSequenceNumber := inferiorStateSequenceNumber + 1.
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    inferiorStateSequenceNumber == SmallInteger maxVal ifTrue:[
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        inferiorStateSequenceNumber := 0.
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    ].
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    ^ inferiorStateSequenceNumber
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    "Created: / 02-06-2014 / 23:48:38 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!GDBDebugger methodsFor:'commands'!
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send: aGDBCommand
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    ^ self send: aGDBCommand wait: true.
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    "Created: / 03-06-2014 / 00:10:38 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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send: aGDBCommand wait: aBoolean
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    "Sends given command to GDB. If `aBoolean` is true, wait for
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     command to finish. Otherwise, return immediately."
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    | token blocker releaser |
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    token := self nextCommandSequnceNumber.
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    aGDBCommand token: token.
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    aBoolean ifTrue:[ 
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        releaser := [ :ev |
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                    ev token == token ifTrue:[ 
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                        self announcer unsubscribe: releaser.  
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                        blocker signal.
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                    ]].
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        blocker := Semaphore new.
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        self announcer when: GDBCommandResultEvent do: releaser.
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        connection pushEvent: (GDBCommandEvent new command: aGDBCommand).
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        blocker wait.
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    ] ifFalse:[
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        connection pushEvent: (GDBCommandEvent new command: aGDBCommand).
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    ]
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    "Created: / 02-06-2014 / 23:45:43 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 04-06-2014 / 09:32:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!GDBDebugger methodsFor:'event handling'!
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onCommand: aGDBCommandEvent
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    connection send: aGDBCommandEvent command.
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    "Created: / 02-06-2014 / 23:38:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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   135
    "Modified: / 20-06-2014 / 22:09:57 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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   137
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onCommandResult: aGDBCommandResultEvent
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    aGDBCommandResultEvent result status == CommandStatusExit ifTrue:[ 
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        connection pushEvent: GDBExitEvent new.
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   141
    ].
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   142
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   143
    "Created: / 02-06-2014 / 23:40:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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   144
    "Modified: / 04-06-2014 / 09:30:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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19
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onExecutionEvent: aGDBExecutionEvent
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    self nextInferiorStateSequnceNumber.
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    "Created: / 19-06-2014 / 22:21:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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onExit: aGDBExitEvent
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    self release.
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    "Created: / 03-06-2014 / 00:36:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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   157
    "Modified: / 04-06-2014 / 09:28:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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onThreadCreated:aGDBThreadCreatedEvent
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    | inferior |
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    inferior := self inferiorForId: aGDBThreadCreatedEvent threadGroupId.
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    inferior onThreadCreated: aGDBThreadCreatedEvent.
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   166
    "Created: / 07-09-2014 / 21:20:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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onThreadExited:aGDBThreadExitedEvent
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    | inferior |
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    inferior := self inferiorForId: aGDBThreadExitedEvent threadGroupId.
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    inferior onThreadExited: aGDBThreadExitedEvent.
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    "Created: / 07-09-2014 / 21:20:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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onThreadGroupAdded:aGDBThreadGroupAddedEvent 
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    | inferior |
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    inferiors isNil ifTrue:[
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        inferiors := List new.
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    ].
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    inferior := GDBThreadGroup newWithDebugger: self id:aGDBThreadGroupAddedEvent threadGroupId.
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    inferiors add:inferior.
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    aGDBThreadGroupAddedEvent setThreadGroup: inferior
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36
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    "Modified: / 07-09-2014 / 21:18:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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onThreadGroupExited:aGDBThreadGroupExitedEvent 
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    | inferior |
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    inferior := self inferiorForId: aGDBThreadGroupExitedEvent threadGroupId.    
35
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    inferior setExitCode: aGDBThreadGroupExitedEvent exitCode.
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    aGDBThreadGroupExitedEvent setThreadGroup: inferior
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    "Created: / 06-09-2014 / 02:37:04 / Jan Vrany <jan.vrany@fit.cvut.cz>"
36
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   198
    "Modified: / 07-09-2014 / 21:23:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"
35
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!
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onThreadGroupStarted:aGDBThreadGroupStartedEvent
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    | inferior |
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    inferior := self inferiorForId: aGDBThreadGroupStartedEvent threadGroupId.  
35
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    inferior setPid: aGDBThreadGroupStartedEvent pid.
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    aGDBThreadGroupStartedEvent setThreadGroup: inferior
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    "Created: / 06-09-2014 / 02:37:31 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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   209
    "Modified: / 07-09-2014 / 21:23:32 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!GDBDebugger methodsFor:'finalization'!
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finalize
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    self release.
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    "Created: / 26-05-2014 / 21:23:28 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!GDBDebugger methodsFor:'initialize & release'!
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23
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initializeWithProcess: aGDBProcess
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    self registerForFinalization.
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    connection := GDBConnection newWithProcess: aGDBProcess.
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    commandSequenceNumber := 0.
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    inferiorStateSequenceNumber := 0.
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    self subscribe.        
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23
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    connection eventPumpStart.
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   232
    connection eventDispatchStart.
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    Delay waitForMilliseconds:100.  
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   234
12
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"/    self send: (GDBMICommand inferiorTtySet: driver inferiorPTY name).
23
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   236
    self send: (GDBMI_inferior_tty_set arguments: { connection inferiorPTY name })
11
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   237
23
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   238
    "Created: / 20-06-2014 / 21:45:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
25
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   239
    "Modified: / 23-06-2014 / 23:44:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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!
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release
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   243
    connection notNil ifTrue:[ 
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        self unsubscribe.
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        connection release.
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        connection := nil.
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    ].
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    "Created: / 26-05-2014 / 21:24:04 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 20-06-2014 / 22:08:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    connection eventAnnouncerInternal
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        when: GDBCommandEvent               send: #onCommand:           to: self;
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        when: GDBCommandResultEvent         send: #onCommandResult:     to: self;
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        when: GDBExitEvent                  send: #onExit:              to: self;
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        when: GDBExecutionEvent             send: #onExecutionEvent:    to: self;
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        when: GDBThreadGroupAddedEvent      send: #onThreadGroupAdded:  to: self;
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        when: GDBThreadGroupStartedEvent    send: #onThreadGroupStarted: to: self;
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        when: GDBThreadGroupExitedEvent     send: #onThreadGroupExited: to: self;
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        when: GDBThreadCreatedEvent         send: #onThreadCreated:      to: self;
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        when: GDBThreadExitedEvent          send: #onThreadExited:       to: self.
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    "Created: / 20-06-2014 / 22:07:04 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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    "Modified: / 07-09-2014 / 22:29:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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unsubscribe
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    connection eventAnnouncerInternal unsubscribe: self
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    "Created: / 20-06-2014 / 22:07:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"
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! !
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!GDBDebugger methodsFor:'testing'!
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isConnected
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    ^ connection notNil
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    "Created: / 20-06-2014 / 22:12:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
0
0b9e93821620 First shot (merely backup)
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! !
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!GDBDebugger class methodsFor:'documentation'!
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version_HG
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    ^ '$Changeset: <not expanded> $'
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! !
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