"

jv:libgdbs - GNU Debugger Interface Library

Copyright (C) 2015-now Jan Vrany

Copyright (C) 2022 LabWare

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.

"

"{ Package: 'jv:vdb' }"

"{ NameSpace: Smalltalk }"

Object subclass:#RR

	instanceVariableNames:'port pty pid announcer'

	classVariableNames:'RRExecutable RRPort'

	poolDictionaries:''

	category:'RR'

!

!RR class methodsFor:'documentation'!

copyright

"

jv:libgdbs - GNU Debugger Interface Library

Copyright (C) 2015-now Jan Vrany

Copyright (C) 2022 LabWare

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.

"

!

documentation

"

    Class `RR` represents a Smalltalk inteface to

    Mozilla rr

    [author:]

        Jan Vrany <jan.vrany@fit.cvut.cz>

    [instance variables:]

    [class variables:]

    [see also:]

        https://rr-project.org/

"

! !

!RR class methodsFor:'initialization'!

initialize

    "Invoked at system start or when the class is dynamically loaded."

    "/ please change as required (and remove this comment)

    RRExecutable := nil. "/ nil means default

    RRPort := 9876

    "Modified: / 27-07-2018 / 07:40:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!RR class methodsFor:'instance creation'!

new

    "return an initialized instance"

    ^ self basicNew initialize.

!

replay

    ^ self new

    "Created: / 26-07-2018 / 16:53:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!RR class methodsFor:'accessing'!

executable

    ^ RRExecutable ? (OperatingSystem pathOfCommand:'rr')

    "Created: / 26-07-2018 / 21:55:17 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

executable: aString

    RRExecutable := aString

    "Created: / 26-07-2018 / 21:54:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!RR class methodsFor:'queries'!

available

    | exe |

    exe := self executable.

    ^ exe notNil and:[ OperatingSystem canExecuteCommand: exe ]

    "

    RR available

    "

    "Created: / 26-07-2018 / 21:56:29 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!RR methodsFor:'accessing'!

announcer

    ^ announcer

!

consoleInput

    ^ pty master

    "Created: / 26-07-2018 / 16:56:43 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

consoleOutput

    ^ pty master

    "Created: / 26-07-2018 / 16:56:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

port

    ^ port

    "Created: / 26-07-2018 / 22:11:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!RR methodsFor:'initialization'!

initialize

    "Invoked when a new instance is created."

    announcer := Announcer new.

    "Modified: / 31-07-2018 / 08:29:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!RR methodsFor:'private'!

exited:status 

    pid := nil.

    announcer announce:((RRExitEvent new)

                setRR:self;

                setStatus:status).

    pty release.

    pty := nil.

    port := nil

    "Created: / 26-07-2018 / 17:03:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 31-07-2018 / 08:34:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!RR methodsFor:'queries'!

running

    "Return true, if RR replay server is running"

    ^ pid notNil

    "Created: / 27-07-2018 / 07:42:25 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!RR methodsFor:'start & stop'!

start

    | args |

    pty := GDBPTY new.

    port := RRPort.

    RRPort := RRPort + 1.

    args := Array 

            with:(OperatingSystem pathOfCommand:'rr')

            with:'replay'

            with:'-s'

            with:port printString.

    Processor 

        monitor:[

            pid := OperatingSystem 

                    exec:args first

                    withArguments:args

                    environment:OperatingSystem getEnvironment

                    fileDescriptors:{

                            pty slave fileDescriptor.

                            pty slave fileDescriptor.

                            pty slave fileDescriptor

                        }

                    fork:true

                    newPgrp:false

                    inDirectory:Filename currentDirectory

                    showWindow:false.

            pid.

        ]

        action:[:stat | self exited:stat ].

    pid isNil ifTrue:[

        pty close.

        self error:'Failed to launch gdb'.

    ].

    announcer announce:(RRStartEvent new setRR:self)

!

stop

    OperatingSystem sendSignal:(OperatingSystem sigTERM) to:pid toGroup:false toAll:false.

    "Created: / 26-07-2018 / 21:23:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

RR initialize!