| author | Claus Gittinger <cg@exept.de> |
| Tue, 05 Dec 1995 18:52:15 +0100 | |
| changeset 151 | 7f46f760ba45 |
| parent 148 | ef0e604209ec |
| child 152 | d7c2314f393e |
| permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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Object subclass:#ObjectFileHandle |
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instanceVariableNames:'sysHandle1 sysHandle2 pathName moduleID handleType weakMethodRef |
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automatically unload modules for garbage collected methods/classes
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parents:
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weakClassRefs' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'System-Compiler' |
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! |
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!ObjectFileHandle class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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not for public use - used by ObjectFileLoader to keep track of loaded modules, |
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associating objectFile names and moduleIDs to classes/methods. |
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"Created: 14.9.1995 / 21:10:55 / claus" |
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! |
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history |
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"Created: 14.9.1995 / 21:10:55 / claus" |
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"Modified: 14.9.1995 / 21:10:55 / claus" |
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! ! |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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!ObjectFileHandle methodsFor:'change & update'! |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
|
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update:something with:aParameter from:changedObject |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
|
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"my method/class object was collected - unload the underlying objectfile" |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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'unloading objectfiles for collected methods/classes' infoPrintNL. |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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ObjectFileLoader unloadAllObsoleteObjectFiles |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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"Created: 5.12.1995 / 18:05:08 / cg" |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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! ! |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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!ObjectFileHandle methodsFor:'accessing'! |
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classes |
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"return the classes" |
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weakClassRefs isNil ifTrue:[^nil]. |
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^ weakClassRefs asArray |
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"Created: 14.9.1995 / 21:13:13 / claus" |
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! |
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classes:aCollectionOfClasses |
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"set the classes collection" |
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weakClassRefs := WeakArray withAll:aCollectionOfClasses. |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
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parents:
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changeset
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weakClassRefs addDependent:self. |
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handleType := #classLibraryObject |
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"Created: 14.9.1995 / 21:13:13 / claus" |
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! |
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method |
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"return method" |
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^ weakMethodRef at:1 |
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"Created: 14.9.1995 / 21:13:13 / claus" |
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! |
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method:something |
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"set method" |
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weakMethodRef := WeakArray with:something. |
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7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
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weakMethodRef addDependent:self. |
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handleType := #methodObject. |
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"Created: 14.9.1995 / 21:13:13 / claus" |
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moduleID |
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"return moduleID" |
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^ moduleID |
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"Created: 14.9.1995 / 21:13:12 / claus" |
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! |
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moduleID:something |
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"set moduleID" |
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moduleID := something. |
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"Created: 14.9.1995 / 21:13:12 / claus" |
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! |
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pathName |
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"return pathName" |
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^ pathName |
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"Created: 14.9.1995 / 21:13:12 / claus" |
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! |
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pathName:something |
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"set pathName" |
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pathName := something. |
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"Created: 14.9.1995 / 21:13:12 / claus" |
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! |
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sysHandle1 |
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"return sysHandle1" |
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^ sysHandle1 |
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"Created: 14.9.1995 / 21:13:12 / claus" |
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! |
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sysHandle1:something |
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"set sysHandle1" |
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sysHandle1 := something. |
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"Created: 14.9.1995 / 21:13:12 / claus" |
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! |
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sysHandle2 |
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"return sysHandle2" |
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^ sysHandle2 |
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"Created: 14.9.1995 / 21:13:12 / claus" |
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! |
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sysHandle2:something |
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"set sysHandle2" |
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sysHandle2 := something. |
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"Created: 14.9.1995 / 21:13:12 / claus" |
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! ! |
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!ObjectFileHandle methodsFor:'queries'! |
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isClassLibHandle |
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"return true, if I am a handle for a class library" |
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^ handleType == #classLibraryObject |
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! |
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isMethodHandle |
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"return true, if I am a handle for a single compiled method" |
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^ handleType == #methodObject |
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! |
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isObsolete |
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"return true, if my clases/method has already been removed from |
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the image. I.e. if the object file can be unloaded without danger." |
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handleType == #classLibraryObject ifTrue:[ |
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^ (weakClassRefs findFirst:[:x | x notNil]) == 0 |
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]. |
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handleType == #methodObject ifTrue:[ |
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^ (weakMethodRef at:1) isNil |
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]. |
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^ false |
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! ! |
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!ObjectFileHandle class methodsFor:'documentation'! |
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version |
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151
7f46f760ba45
automatically unload modules for garbage collected methods/classes
Claus Gittinger <cg@exept.de>
parents:
148
diff
changeset
|
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^ '$Header: /cvs/stx/stx/libcomp/ObjectFileHandle.st,v 1.9 1995-12-05 17:52:03 cg Exp $' |
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! ! |