"

 COPYRIGHT (c) 1992 by Claus Gittinger

	      All Rights Reserved

 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.

"

"{ Package: 'stx:libtool' }"

"{ NameSpace: Smalltalk }"

StandardSystemView subclass:#MemoryUsageView

	instanceVariableNames:'rawInfo info list sortBlock titleLabel prevRawInfo

		autoUpdateProcess autoUpdateInterval filter infoLabel'

	classVariableNames:'LastSearchString'

	poolDictionaries:''

	category:'Monitors-ST/X'

!

Object subclass:#StatisticEntry

	instanceVariableNames:'classNameOrSymbol overallByteSize minByteSize maxByteSize

		averageSize instanceCount instanceAllocationRate

		memoryAllocationRate'

	classVariableNames:''

	poolDictionaries:''

	privateIn:MemoryUsageView

!

!MemoryUsageView class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1992 by Claus Gittinger

	      All Rights Reserved

 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.

"

!

documentation

"

    this view shows an overview over the memory usage of the system.

    usage:

        MemoryUsageView new open

    Since scanning all memory takes some time, this is not done

    automatically, but upon request. See the middlebuttonmenu-'update'

    function.

    This is a very old application - definitely needs some pimping to look better...

    ... any maybe a nice menu, graphical display etc.

"

! !

!MemoryUsageView class methodsFor:'startup'!

isVisualStartable

    ^ true

    "Created: / 10.8.1998 / 16:02:59 / cg"

! !

!MemoryUsageView methodsFor:'auto update'!

autoUpdate

    self pushEvent:#update

    "Created: / 05-05-2011 / 17:20:52 / cg"

!

autoUpdateInterval

    ^ autoUpdateInterval ? 30 seconds

    "Created: / 05-05-2011 / 17:20:49 / cg"

!

autoUpdateLoop

    |delay interval|

    [

        self autoUpdate.

        interval ~= self autoUpdateInterval ifTrue:[

            interval := self autoUpdateInterval.

            delay := Delay forSeconds:interval.

        ].

        delay wait.

    ] loop.

    "Created: / 05-05-2011 / 17:20:44 / cg"

    "Modified: / 23-02-2017 / 14:14:24 / stefan"

!

openAutoUpdateIntervalDialog

    |s|

    s := Dialog request:'Update interval [smh]:' initialAnswer:self autoUpdateInterval printString.

    s isEmptyOrNil ifTrue:[^ self].

    autoUpdateInterval := TimeDuration readFrom:s.

    "Created: / 05-05-2011 / 17:24:48 / cg"

!

startAutoUpdateProcess

    autoUpdateProcess notNil ifTrue:[

        self stopAutoUpdateProcess.

    ].

    autoUpdateProcess :=

        [

            self autoUpdateLoop

        ] fork

    "Created: / 05-05-2011 / 17:19:00 / cg"

!

stopAutoUpdateProcess

    |p|

    (p := autoUpdateProcess) notNil ifTrue:[

        autoUpdateProcess := nil.

        p terminate.

    ].

    "Created: / 05-05-2011 / 17:19:03 / cg"

! !

!MemoryUsageView methodsFor:'initialization'!

initialize

    |helpView headLine|

    super initialize.

    self label:'Memory Usage'.

    headLine := ' Class' paddedTo:47 with:Character space.

    headLine := headLine , '  # of Insts       Bytes   Avg sz   Max sz   %Mem  %Accum. +Insts    +Bytes'.

    titleLabel := Label in:self.

    titleLabel origin:(0.0 @ 0.0) corner:(1.0 @ titleLabel preferredHeight).

    titleLabel borderWidth:0.

    titleLabel label:headLine.

    titleLabel adjust:#left.

    infoLabel := Label in:self.

    infoLabel geometryLayout:(LayoutFrame 

                                leftFraction:0 offset:0

                                rightFraction:1.0 offset:0

                                topFraction:1.0 offset:infoLabel preferredHeight negated

                                bottomFraction:1.0 offset:0).

    infoLabel borderWidth:0.

    infoLabel label:''.

    infoLabel adjust:#left.

    infoLabel level:-1.

    helpView := ScrollableView for:SelectionInListView in:self.

    helpView geometryLayout:(LayoutFrame 

                                leftFraction:0 offset:0

                                rightFraction:1.0 offset:0

                                topFraction:0 offset:titleLabel height

                                bottomFraction:1.0 offset:infoLabel height negated).

    list := helpView scrolledView.

    titleLabel origin:(list originRelativeTo:self) x @ 0.0.

    list font:(EditTextView defaultFont).

    titleLabel font:(EditTextView defaultFont).

    list menuHolder:self; menuPerformer:self; menuMessage:#usageMenu.

    self extent:((list font widthOf:headLine) + ( device horizontalPixelPerMillimeter * 15) rounded) @ self height.

    "

     MemoryUsageView open

    "

    "Modified: / 08-05-2011 / 12:45:06 / cg"

    "Modified: / 26-11-2014 / 16:00:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

release

    self stopAutoUpdateProcess.

    super release.

    "Created: / 05-05-2011 / 17:26:24 / cg"

! !

!MemoryUsageView methodsFor:'menu-actions'!

browseClass

    |class|

    (class := self selectedClass) isNil ifTrue:[ ^ self ].

    class browserClass openInClass:class.

    "Modified: / 11-05-2011 / 14:34:38 / cg"

!

browseReferencesToClass

    |class|

    (class := self selectedClass) isNil ifTrue:[ ^ self ].

    SystemBrowser default browseReferendsOf:class name

    "Created: / 29-07-2018 / 15:22:11 / Claus Gittinger"

!

collectGarbageAndUpdate

    self withWaitCursorDo:[

	ObjectMemory tenure.

	ObjectMemory compressingGarbageCollect.

    ].

    self update.

    "Created: 14.10.1997 / 21:36:38 / cg"

    "Modified: 14.10.1997 / 21:41:11 / cg"

!

displayGlobalRefChainsToInsts

    |class|

    (class := self selectedClassOrClassSymbol) isNil ifTrue:[ ^ self ].

    self withCursor:(Cursor questionMark) do:[

        |insts numInsts limit answer tooMany|

        "

         special kludge

        "

        class isSymbol ifTrue:[

            class == #NameSpace ifFalse:[

                self information:'classes are directly refered to by Smalltalk'.

                ^ self.

            ].

            class := (Smalltalk at:class) class.

            insts := class allSubInstances.

            insts remove:class soleInstance ifAbsent:nil

        ] ifFalse:[

            tooMany := false.

            Error handle:[:ex |

                tooMany := true.

            ] do:[

                insts := class allInstances.

                numInsts := insts size

            ].

            tooMany ifTrue:[

                numInsts := class instanceCount.

            ].

        ].

        numInsts > 10 ifTrue:[

            answer := Dialog 

                request:('There are ' , numInsts printString , ' instances.\Do you really want to follow them all ?\\(Give number to follow or cancel)' withCRs)

                initialAnswer:(numInsts min:10) printString.

            limit := Integer readFrom:answer onError:nil.

            limit isNil ifTrue:[^ self].

            insts isNil ifTrue:[

                [:exit |

                    insts := OrderedCollection new.

                    class allInstancesDo:[:inst |

                        insts add:inst.

                        insts size == limit ifTrue:[ exit value:nil ].

                    ]

                ] valueWithExit.

            ] ifFalse:[

                insts := (insts asArray copyToMax:limit)

            ]

        ].

        insts := insts asArray.

        ObjectMemory displayRefChainToAny:insts limitNumberOfSearchedReferences:(limit ? 1000).

    ]

    "Created: / 03-02-1998 / 00:03:22 / cg"

    "Modified: / 11-05-2011 / 14:33:04 / cg"

    "Modified: / 16-06-2011 / 16:14:40 / az"

    "Modified: / 30-07-2018 / 11:14:47 / Claus Gittinger"

!

inspectInstances

    self withCursor:(Cursor questionMark) do:[

        self withInstancesOfSelectedClassDo:[:insts |

            |answer|

            answer := true.

            insts size > 500 ifTrue:[

                answer := OptionBox

                            request:('there are ' , insts size printString , ' instances.\\Do you really want to see them all ?' withCRs)

                            buttonLabels:#('No' 'Show me any 500' 'Yes' )

                            values:#( false #some true )

                            default:true.

            ].

            answer ~~ false ifTrue:[

                answer == #some ifTrue:[

                    (insts copyTo:500) inspect.

                ] ifFalse:[

                    insts inspect

                ]

            ].

        ]

    ]

    "Modified: / 11-05-2011 / 14:36:44 / cg"

    "Modified: / 16-06-2011 / 15:57:52 / az"

!

inspectInstancesWithSearch

    |filterString filterBlock|

    list selection isNil ifTrue:[^ self].

    filterString := LastSearchString ? '[:inst | "<some condition for inst>" ]'.

    [filterBlock isNil] whileTrue:[

        filterString := Dialog request:'filter block:' initialAnswer:filterString.

        filterString size == 0 ifTrue:[^ self].

        filterBlock := Compiler evaluate:filterString.

        filterBlock isBlock ifFalse:[

            self information:'bad syntax in block'.

            filterBlock := nil.

        ].

    ].

    LastSearchString := filterString.

    self withCursor:(Cursor questionMark) do:[

        self withInstancesOfSelectedClassDo:[:insts |

            |filteredInsts|

            filteredInsts := insts select:filterBlock.

            filteredInsts size > 500 ifTrue:[

                (self confirm:'there are ' , filteredInsts size printString , ' instances.\\Do you really want to see them all ?' withCRs)

                ifFalse:[^ self]

            ].

            filteredInsts inspect

        ]

    ]

    "Modified: / 11-05-2011 / 14:38:12 / cg"

!

inspectLargestInstances

    |tenBiggest smallestOfThe10|

    tenBiggest := SortedCollection new:20.

    tenBiggest sortBlock:[:a :b | a size > b size].

    smallestOfThe10 := nil.

    self withCursor:(Cursor questionMark) do:[

        self withInstancesOfSelectedClassDo:[:insts |

            insts do:[:each |

                smallestOfThe10 isNil ifTrue:[

                    smallestOfThe10 := each size.

                    tenBiggest add:each.

                ] ifFalse:[

                    each basicSize > smallestOfThe10 ifTrue:[

                        tenBiggest add:each.

                        tenBiggest size > 10 ifTrue:[

                            tenBiggest removeLast.

                            smallestOfThe10 := tenBiggest last size.

                        ]

                    ]

                ].

            ].

            tenBiggest inspect

        ]

    ]

    "Modified: / 11-05-2011 / 14:36:44 / cg"

    "Modified: / 16-06-2011 / 15:57:52 / az"

!

inspectOwners

    |class inspector|

    (class := self selectedClass) isNil ifTrue:[ ^ self ].

    self withCursor:(Cursor questionMark) do:[

        |owners dict|

        owners := (ObjectMemory whoReferencesInstancesOf:class).

        owners isEmptyOrNil ifTrue:[

            self information:'No owners found - next GC should remove it'.

            ^ self

        ].

        owners := owners asOrderedCollection.

        owners size > 500 ifTrue:[

            (self confirm:'there are ' , owners size printString , ' owners.\\Do you really want to see them all ?' withCRs)

            ifFalse:[^ self]

        ].

        dict := IdentityDictionary new.

        owners do:[:owner |

            |set names oClass s nMore|

            "

             skip weakArrays ... (they don't count)

            "

            (owner isMemberOf:WeakArray) ifFalse:[

                nMore := nil.    

                set := Set new.

                owner == Smalltalk ifTrue:[

                    owner keysAndValuesDo:[:key :val |

                        (val isMemberOf:class) ifTrue:[

                            set add:key

                        ]

                    ]

                ] ifFalse:[

                    names := owner class allInstVarNames.

                    oClass := owner class.

                    1 to:oClass instSize do:[:i |

                        ((owner instVarAt:i) isMemberOf:class) ifTrue:[

                            set add:(names at:i).

                        ].

                    ].

                    oClass isVariable ifTrue:[

                        oClass isPointers ifTrue:[

                            1 to:owner basicSize do:[:i |

                                ((owner basicAt:i) isMemberOf:class) ifTrue:[

                                    nMore isNil ifTrue:[    

                                        set add:i.

                                        set size > 500 ifTrue:[

                                            nMore := 0.

                                        ]

                                    ] ifFalse:[

                                        nMore := nMore + 1.

                                    ]

                                ]

                            ]

                        ]

                    ].

                ].

                "

                 put a describing string into the dictionary

                "

                s := WriteStream on:''.    

                s nextPutAll:'references in: '.

                set do:[:name | 

                     name isString ifTrue:[

                         s nextPutAll:name; nextPutAll:' '

                     ] ifFalse:[

                         s nextPutAll:'[';  nextPutAll:name printString;  nextPutAll:'] '

                     ]

                ].

                nMore notNil ifTrue:[

                    s nextPutAll:'... (', nMore printString,' more)'

                ].

                dict at:owner put:(s contents).

"/                            dict at:owner put:set

            ]

        ].

        inspector := DictionaryInspectorView openOn:dict.

        inspector listView doubleClickAction:[:lineNr | inspector doInspectKey].

    ]

    "Modified: / 11-05-2011 / 14:39:30 / cg"

!

nilInstances

    |class|

    (class := self selectedClass) isNil ifTrue:[ ^ self ].

    self withCursor:(Cursor questionMark) do:[

        |insts|

        insts := class allInstances.

        insts notEmpty ifTrue:[    

            (self confirm:'there are ' , insts size printString , ' instances.\\Do you really want to nil them all ?' withCRs)

            ifTrue:[

                insts do:[:each |

                    each becomeNil

                ]

            ]

        ].

    ]

    "Modified: / 11-05-2011 / 14:39:33 / cg"

!