author | Claus Gittinger <cg@exept.de> |
Wed, 06 Nov 1996 13:17:58 +0100 | |
changeset 1903 | 30c98b3377c5 |
parent 1825 | 6f81b866a74a |
child 2091 | c11bb3e29a1b |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1991 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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Array subclass:#WeakArray |
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instanceVariableNames:'watcher dependents' |
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classVariableNames:'RegistrationFailedSignal AlreadyInitialized' |
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poolDictionaries:'' |
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category:'Collections-Arrayed' |
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! |
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!WeakArray class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1991 by Claus Gittinger |
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All Rights Reserved |
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|
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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 |
|
29 |
inclusion of the above copyright notice. This software may not |
|
30 |
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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||
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documentation |
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" |
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WeakArrays can be used to trace disposal of objects; in contrast to other |
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objects, references by WeakArrays will NOT keep an object from being |
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garbage collected. |
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Instead, whenever an object kept in a WeakArray dies, its entry is zeroed, |
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and the WeakArray is informed by the storage manager. The WeakArray itself |
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then informs possible dependents via te dependency mechanism. |
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WeakArrays are used to track disposal of objects which keep external |
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world resources. For example, FileStreams must close their underlying |
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file when disposed (otherwise you could run out of OS filedescriptors). |
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This can be done by keeping the FileStream objects in a weakArray, and |
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keep a parallel array of filedescriptors. Whenever a fileStream is |
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freed, search both arrays for an index where the stream is zero, but the |
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filedescriptor is non-nil. Then close that file, and nil the filedescriptor |
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entry. Notice, that there is a class (Registry) which does exactly this in |
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a more programmer friendly way. |
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|
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Another application is caching of data: keep it in a weakArray, so the |
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data in that cache will not be unreclaimable due to being cached. |
57 |
(for example, the ResourcePack class uses a WeakArray to cache recently |
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used resource data for a while). |
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|
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The way in which weakArrays get informed by the runtime system is via |
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an interrupt (DisposeInterrupt) which is first sent to the disposeHandler |
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(typically ObjectMemory). ObjectMemory then takes the required steps to |
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notify all weakArrays via the #lostPointer message. |
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|
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The reason for not sending messages directly from the VM is to make it |
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possible to run the finalization code at lower priority or from another class. |
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Also, as a side effect, it is possible to delay finalization by blocking |
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interrupts. |
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Notice, that there are currently two mechanisms by which a weakArray notifies |
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its dependents: via normal dependency notfications and/or by sending an |
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explicit message to a watcher object, which is found in an instvar of the |
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WeakArray. |
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Having two mechanisms here (i.e. watcher & dependent) is a historic leftover; |
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I dont know, which of the two mechanisms will survive in the long run - |
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I started with the watcher, but now switch to dependencies since they seem |
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to offer more flexibility. |
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You should NOT use the watcher mechanism; be prepared, that the watcher |
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mechanism may vanish in the future (i.e. use dependents for your applications). |
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NOTICE: |
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WeakArray handling adds some overhead to the VM |
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(each weakarray is scanned after each GC). |
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It is uncertain, if the current mechanism works well |
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with (say) ten-thousands of weakArrays. |
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|
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As a possible option, we could perform the weakArray scanning only in |
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the oldSpace reclamation code - this would remove most of the overhead, |
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but will lead to much longer delayed finalization .... we will see. |
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[instance variables:] |
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watcher if non-nil, gets informed via #informDispose |
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that the weakArray has lost pointers. |
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dependents get informed via #change notifiction |
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that the weakArray has lost pointers. |
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Having the dependents here is an optimization. |
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[class variables:] |
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RegistrationFailedSignal raised if a weakArray cannot be |
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registered by the VM. This only happens, |
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if the VM has to resize its shadow tables |
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and is running out of malloc-memory. |
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[author:] |
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Claus Gittinger |
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[See also:] |
114 |
Array WeakIdentitySet WeakIdentityDictionary |
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" |
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! ! |
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!WeakArray class methodsFor:'initialization'! |
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120 |
initialize |
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"setup the private signal" |
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123 |
RegistrationFailedSignal isNil ifTrue:[ |
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RegistrationFailedSignal := ErrorSignal newSignalMayProceed:true. |
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RegistrationFailedSignal nameClass:self message:#registrationFailedSignal. |
126 |
RegistrationFailedSignal notifierString:'weakArray registration failed'. |
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] |
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! ! |
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||
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!WeakArray class methodsFor:'instance creation'! |
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new:size |
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"return a new weakArray with size slots" |
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"This is a kludge: I would like to set WEAK-flag in the classes |
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initialize method, but (currently) the order in which the class-initialize |
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methods are called is not defined ... |
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... therefore it could happen, that a WeakArray is used by other |
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classes initialize method BEFORE this method is evaluated. |
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To avoid this, the WEAK bit in the class is set here, when the very first |
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WeakArray is created." |
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AlreadyInitialized isNil ifTrue:[ |
144 |
self flags:(Behavior flagWeakPointers). |
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AlreadyInitialized := true |
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]. |
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^ (self basicNew:size) registerAsWeakArray |
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! ! |
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!WeakArray methodsFor:'GC registration'! |
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153 |
registerAsWeakArray |
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"register the receiver in the VM - |
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i.e. tell the VM to nil disposed entries in the receiver |
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and notify the disposeInterruptHandler whenever that happened." |
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|ok| |
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%{ |
160 |
OBJ __addShadowObject(); |
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159 | 162 |
ok = __addShadowObject(self, 0); |
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if (ok == false) { |
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/* |
165 |
* this happens when too many shadow objects are |
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* already there, collect garbage to get rid of |
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* obsolete ones, and try again. |
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168 |
* since a full collect is expensive, we try |
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* a scavenge first, doing a full collect only if |
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* that does not help. |
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* |
172 |
* THIS MAY OR MAY NOT BE A GOOD IDEA: although it reduces |
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* the number of shadow objects that have to be |
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* processed at GC time, it may create a long delay here, |
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* at shadow object creation time. |
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* Dont know which is better ... |
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*/ |
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__nonTenuringScavenge(__context); |
186 | 179 |
ok = __addShadowObject(self, 0); |
308 | 180 |
#ifdef OLD |
186 | 181 |
if (ok == false) { |
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/* |
183 |
* try more ... |
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*/ |
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326 | 185 |
__scavenge(__context); |
186 | 186 |
ok = __addShadowObject(self, 0); |
308 | 187 |
#endif |
186 | 188 |
if (ok == false) { |
290 | 189 |
/* |
190 |
* hard stuff - need full collect |
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462 | 191 |
* if this is the very first GC, assume that we are in |
192 |
* the startup phase. Then do no GC. |
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193 |
* Heuristics showed, that this GC does not find much ... |
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*/ |
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if ((__garbageCollectCount() != 0) |
196 |
|| (__incrementalGCCount() != 0)) { |
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462 | 197 |
__markAndSweepIfUseful(__context); |
198 |
ok = __addShadowObject(self, 0); |
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199 |
} |
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186 | 200 |
if (ok == false) { |
290 | 201 |
/* |
202 |
* mhmh - it seems that there are really many shadow |
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203 |
* objects around - force creation |
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204 |
*/ |
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186 | 205 |
ok = __addShadowObject(self, 1); |
206 |
if (ok == false) { |
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207 |
/* no chance - something must be wrong */ |
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208 |
} |
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209 |
} |
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210 |
} |
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308 | 211 |
#ifdef OLD |
186 | 212 |
} |
308 | 213 |
#endif |
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} |
159 | 215 |
%}. |
216 |
ok ifFalse:[ |
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290 | 217 |
" |
218 |
the VM was not able to register the new weakArray |
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219 |
This can only happen, if the VM has to resize its tables, |
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220 |
and a malloc request failed. Usually, this smells like big |
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trouble being on the way (soon running out of memory in |
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other places as well). |
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223 |
Configure your OS for more swap space. |
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224 |
" |
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186 | 225 |
^ RegistrationFailedSignal raiseRequestWith:self |
159 | 226 |
] |
6 | 227 |
! ! |
228 |
||
603 | 229 |
!WeakArray methodsFor:'accessing'! |
230 |
||
231 |
at:index |
|
232 |
"return the indexed instance variable with index, anInteger. |
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233 |
Reimplemented here for IGC readBarrier. You dont have to understand this." |
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234 |
||
235 |
^ self basicAt:index |
|
236 |
! |
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6 | 237 |
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603 | 238 |
basicAt:index |
239 |
"return the indexed instance variable with index, anInteger. |
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240 |
Reimplemented here for IGC readBarrier. You dont have to understand this." |
|
241 |
||
242 |
%{ /* NOCONTEXT */ |
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243 |
||
244 |
REGISTER int indx; |
|
245 |
REGISTER unsigned int nIndex; |
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246 |
OBJ el; |
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6 | 247 |
|
603 | 248 |
if (__isSmallInteger(index)) { |
1136 | 249 |
indx = __intVal(index) - 1; |
603 | 250 |
if (indx >= 0) { |
251 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
|
1136 | 252 |
indx += __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
603 | 253 |
if (indx < nIndex) { |
1136 | 254 |
el = __InstPtr(self)->i_instvars[indx]; |
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255 |
if (__isNonNilObject(el)) el = __WEAK_READ__(self, el); |
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256 |
RETURN (el); |
603 | 257 |
} |
258 |
} |
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259 |
} |
|
260 |
%}. |
|
261 |
^ super basicAt:index |
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262 |
! |
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263 |
||
264 |
dependents |
|
265 |
"return the dependents of the receiver" |
|
266 |
||
267 |
^ dependents |
|
268 |
! |
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269 |
||
270 |
dependents:aCollection |
|
271 |
"set the dependents of the receiver" |
|
272 |
||
273 |
dependents := aCollection |
|
274 |
! |
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275 |
||
276 |
watcher |
|
277 |
"return the watcher of the receiver. |
|
278 |
The watcher-stuff is a leftover from an old implementation |
|
279 |
and will vanish soon" |
|
280 |
||
281 |
^ watcher |
|
282 |
! |
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283 |
||
284 |
watcher:anObject |
|
285 |
"set the watcher of the receiver. |
|
286 |
The watcher-stuff is a leftover from an old implementation |
|
287 |
and will vanish soon" |
|
288 |
||
289 |
watcher := anObject |
|
6 | 290 |
! ! |
291 |
||
159 | 292 |
!WeakArray methodsFor:'copying'! |
293 |
||
294 |
postCopy |
|
295 |
"copying alone does not really help - we have to tell |
|
296 |
the VM, that there is a new WeakArray around ... |
|
297 |
Q: who copies weakArrays ?" |
|
298 |
||
290 | 299 |
dependents := nil. |
159 | 300 |
self registerAsWeakArray. |
301 |
! ! |
|
302 |
||
1825 | 303 |
!WeakArray methodsFor:'enumerating'! |
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do:aBlock |
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306 |
"evaluate the argument, aBlock for each element in the collection. |
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307 |
- reimplemented for IGC readBarrier. You dont have to understand this." |
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308 |
|
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309 |
|home element| |
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310 |
%{ |
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311 |
REGISTER OBJFUNC codeVal; |
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312 |
REGISTER int index; |
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313 |
unsigned int nIndex; |
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314 |
static struct inlineCache val = _ILC1; |
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315 |
REGISTER OBJ rHome; |
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316 |
|
1136 | 317 |
index = __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
586
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|
318 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
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|
319 |
if (__isBlockLike(aBlock) |
1136 | 320 |
&& ((codeVal = __BlockInstPtr(aBlock)->b_code) != (OBJFUNC)nil) |
321 |
&& (__BlockInstPtr(aBlock)->b_nargs == __MKSMALLINT(1))) { |
|
586
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|
322 |
#ifdef NEW_BLOCK_CALL |
cab695f942a6
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|
323 |
for (; index < nIndex; index++) { |
1688
8a42db1eea60
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parents:
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|
324 |
if (InterruptPending != nil) __interruptL(@line); |
1136 | 325 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
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diff
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|
326 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
1688
8a42db1eea60
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|
327 |
(*codeVal)(aBlock, element); |
586
cab695f942a6
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parents:
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diff
changeset
|
328 |
} |
cab695f942a6
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parents:
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diff
changeset
|
329 |
#else |
1136 | 330 |
home = __BlockInstPtr(aBlock)->b_home; |
586
cab695f942a6
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Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
331 |
rHome = home; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
332 |
if ((rHome == nil) || (__qSpace(rHome) >= STACKSPACE)) { |
cab695f942a6
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Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
333 |
/* |
cab695f942a6
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Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
334 |
* home will not move - keep in a fast register |
cab695f942a6
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Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
335 |
*/ |
cab695f942a6
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Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
336 |
for (; index < nIndex; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
337 |
if (InterruptPending != nil) __interruptL(@line); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
338 |
|
1136 | 339 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
340 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
341 |
(*codeVal)(rHome, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
342 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
343 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
344 |
for (; index < nIndex; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
345 |
if (InterruptPending != nil) __interruptL(@line); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
346 |
|
1136 | 347 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
348 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
349 |
(*codeVal)(home, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
350 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
351 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
352 |
#endif |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
353 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
354 |
for (; index < nIndex; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
355 |
if (InterruptPending != nil) __interruptL(@line); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
356 |
|
1136 | 357 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
358 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
359 |
(*val.ilc_func)(aBlock, |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
360 |
@symbol(value:), |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
361 |
nil, &val, |
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
362 |
element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
363 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
364 |
} |
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
365 |
%}. |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
366 |
^ self |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
367 |
! |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
368 |
|
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
369 |
forAllDeadIndicesDo:aBlock |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
370 |
"evaluate the argument, aBlock for all indices where elements have been |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
371 |
replaced by zero (due to a collected object)." |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
372 |
|
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
373 |
self keysAndValuesDo:[:index :element | |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
374 |
element == 0 ifTrue:[ |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
375 |
aBlock value:index |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
376 |
] |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
377 |
] |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
378 |
! |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
379 |
|
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
380 |
forAllDeadIndicesDo:aBlock replacingCorpsesWith:newValue |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
381 |
"evaluate the argument, aBlock for all indices where elements have been |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
382 |
replaced by zero (due to a collected object), and replace the element |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
383 |
with newValue. |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
384 |
In the current implementation, the block sees the newValue (i.e. it is |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
385 |
changed before the block is called); this behavior is not guaranteed |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
386 |
with future versions." |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
387 |
|
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
388 |
self keysAndValuesDo:[:index :element | |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
389 |
element == 0 ifTrue:[ |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
390 |
self at:index put:newValue. |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
391 |
aBlock value:index. |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
392 |
] |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
393 |
] |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
394 |
! |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
395 |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
396 |
from:start to:stop do:aBlock |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
397 |
"evaluate the argument, aBlock for the elements starting at index start |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
398 |
up to (and including) stop in the collection. |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
399 |
- reimplemented for IGC readBarrier. You dont have to understand this." |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
400 |
|
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
401 |
|home element| |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
402 |
%{ |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
403 |
REGISTER OBJFUNC codeVal; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
404 |
REGISTER int index; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
405 |
REGISTER OBJ rHome; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
406 |
int nIndex, nInsts; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
407 |
static struct inlineCache val = _ILC1; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
408 |
int indexLow, indexHigh; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
409 |
|
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
410 |
if (__bothSmallInteger(start, stop)) { |
1136 | 411 |
indexLow = __intVal(start); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
412 |
if (indexLow > 0) { |
1136 | 413 |
indexHigh = __intVal(stop); |
414 |
nInsts = __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
415 |
indexLow += nInsts; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
416 |
indexHigh += nInsts; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
417 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
418 |
if (indexHigh <= nIndex) { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
419 |
indexLow--; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
420 |
indexHigh--; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
421 |
if (__isBlockLike(aBlock) |
1136 | 422 |
&& ((codeVal = __BlockInstPtr(aBlock)->b_code) != (OBJFUNC)nil) |
423 |
&& (__BlockInstPtr(aBlock)->b_nargs == __MKSMALLINT(1))) { |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
424 |
#ifdef NEW_BLOCK_CALL |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
425 |
for (index=indexLow; index <= indexHigh; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
426 |
if (InterruptPending != nil) __interruptL(@line); |
1136 | 427 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
428 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
429 |
(*codeVal)(aBlock, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
430 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
431 |
#else |
1136 | 432 |
home = __BlockInstPtr(aBlock)->b_home; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
433 |
rHome = home; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
434 |
if ((rHome == nil) || (__qSpace(rHome) >= STACKSPACE)) { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
435 |
index = indexLow; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
436 |
for (; index <= indexHigh; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
437 |
if (InterruptPending != nil) __interruptL(@line); |
1136 | 438 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
439 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
440 |
(*codeVal)(rHome, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
441 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
442 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
443 |
for (index=indexLow; index <= indexHigh; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
444 |
if (InterruptPending != nil) __interruptL(@line); |
1136 | 445 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
446 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
447 |
(*codeVal)(home, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
448 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
449 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
450 |
#endif |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
451 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
452 |
for (index=indexLow; index <= indexHigh; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
453 |
if (InterruptPending != nil) __interruptL(@line); |
1136 | 454 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
455 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
456 |
(*val.ilc_func) (aBlock, |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
457 |
@symbol(value:), |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
458 |
nil, &val, |
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
459 |
element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
460 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
461 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
462 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
463 |
RETURN ( self ); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
464 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
465 |
} |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
466 |
%}. |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
467 |
^ super from:start to:stop do:aBlock |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
468 |
! |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
469 |
|
603 | 470 |
keysAndValuesDo:aBlock |
471 |
"evaluate the argument, aBlock for each element in the collection. |
|
472 |
Pass both index and element to the block. |
|
473 |
- reimplemented for speed" |
|
474 |
||
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
475 |
|home element| |
603 | 476 |
%{ |
477 |
REGISTER OBJFUNC codeVal; |
|
478 |
REGISTER int index; |
|
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
479 |
unsigned int nIndex, index0; |
603 | 480 |
static struct inlineCache val2 = _ILC2; |
481 |
REGISTER OBJ rHome; |
|
482 |
||
1136 | 483 |
index = __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
484 |
index0 = index; |
603 | 485 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
486 |
|
603 | 487 |
if (__isBlockLike(aBlock) |
1136 | 488 |
&& ((codeVal = __BlockInstPtr(aBlock)->b_code) != (OBJFUNC)nil) |
489 |
&& (__BlockInstPtr(aBlock)->b_nargs == __MKSMALLINT(2))) { |
|
603 | 490 |
#ifdef NEW_BLOCK_CALL |
491 |
for (; index < nIndex; index++) { |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
492 |
if (InterruptPending != nil) __interruptL(@line); |
603 | 493 |
|
1136 | 494 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
495 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
496 |
(*codeVal)(aBlock, __MKSMALLINT(index+1-index0), element); |
603 | 497 |
} |
498 |
#else |
|
1136 | 499 |
home = __BlockInstPtr(aBlock)->b_home; |
603 | 500 |
rHome = home; |
501 |
if ((rHome == nil) || (__qSpace(rHome) >= STACKSPACE)) { |
|
502 |
/* |
|
503 |
* home will not move - keep in a fast register |
|
504 |
*/ |
|
505 |
while (index < nIndex) { |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
506 |
if (InterruptPending != nil) __interruptL(@line); |
603 | 507 |
|
1136 | 508 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
509 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
603 | 510 |
index++; |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
511 |
(*codeVal)(rHome, __MKSMALLINT(index-index0), element); |
603 | 512 |
} |
513 |
} else { |
|
514 |
while (index < nIndex) { |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
515 |
if (InterruptPending != nil) __interruptL(@line); |
603 | 516 |
|
1136 | 517 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
518 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
603 | 519 |
index++; |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
520 |
(*codeVal)(home, __MKSMALLINT(index-index0), element); |
603 | 521 |
} |
522 |
} |
|
523 |
#endif |
|
524 |
} else { |
|
525 |
while (index < nIndex) { |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
526 |
if (InterruptPending != nil) __interruptL(@line); |
603 | 527 |
|
1136 | 528 |
element = __InstPtr(self)->i_instvars[index]; |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
529 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
603 | 530 |
index++; |
531 |
(*val2.ilc_func)(aBlock, |
|
532 |
@symbol(value:value:), |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
533 |
nil, &val2, |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
534 |
__MKSMALLINT(index-index0), |
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
535 |
element); |
603 | 536 |
} |
537 |
} |
|
538 |
%}. |
|
539 |
^ self |
|
540 |
! |
|
541 |
||
1785
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
542 |
nilAllCorpsesAndDo:aBlock |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
543 |
"evaluate the argument, aBlock for all indices where elements have been |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
544 |
cleared (due to a collected object), nil the entry." |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
545 |
|
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
546 |
self forAllDeadIndicesDo:aBlock replacingCorpsesWith:nil |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
547 |
! |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
548 |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
549 |
nonNilElementsDo:aBlock |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
550 |
"evaluate the argument, aBlock for each non-nil element" |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
551 |
|
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
552 |
|home element| |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
553 |
%{ |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
554 |
REGISTER OBJFUNC codeVal; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
555 |
REGISTER int index; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
556 |
int nIndex; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
557 |
static struct inlineCache val = _ILC1; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
558 |
REGISTER OBJ rHome; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
559 |
|
1136 | 560 |
index = __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
561 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
562 |
if (__isBlockLike(aBlock) |
1136 | 563 |
&& ((codeVal = __BlockInstPtr(aBlock)->b_code) != (OBJFUNC)nil) |
564 |
&& (__BlockInstPtr(aBlock)->b_nargs == __MKSMALLINT(1))) { |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
565 |
#ifdef NEW_BLOCK_CALL |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
566 |
for (; index < nIndex; index++) { |
1136 | 567 |
element = __InstPtr(self)->i_instvars[index]; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
568 |
if (element != nil) { |
1903 | 569 |
if (InterruptPending != nil) { |
570 |
__interruptL(CONARG); |
|
571 |
/* refetch; who knows what is done in the interrupt ... */ |
|
572 |
element = __InstPtr(self)->i_instvars[index]; |
|
573 |
} |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
574 |
element = __WEAK_READ__(self, element); |
759
908363ce8a32
interest is written with one 'r' (shame on me)
Claus Gittinger <cg@exept.de>
parents:
681
diff
changeset
|
575 |
if (element != nil) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
576 |
(*codeVal)(aBlock, element); |
759
908363ce8a32
interest is written with one 'r' (shame on me)
Claus Gittinger <cg@exept.de>
parents:
681
diff
changeset
|
577 |
} |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
578 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
579 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
580 |
#else |
1136 | 581 |
home = __BlockInstPtr(aBlock)->b_home; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
582 |
rHome = home; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
583 |
if ((rHome == nil) || (__qSpace(rHome) >= STACKSPACE)) { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
584 |
/* |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
585 |
* home will not move - keep in in a register |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
586 |
*/ |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
587 |
for (; index < nIndex; index++) { |
1136 | 588 |
element = __InstPtr(self)->i_instvars[index]; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
589 |
if (element != nil) { |
1903 | 590 |
if (InterruptPending != nil) { |
591 |
__interruptL(CONARG); |
|
592 |
/* refetch; who knows what is done in the interrupt ... */ |
|
593 |
element = __InstPtr(self)->i_instvars[index]; |
|
594 |
} |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
595 |
element = __WEAK_READ__(self, element); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
596 |
if (element != nil) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
597 |
(*codeVal)(rHome, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
598 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
599 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
600 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
601 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
602 |
for (; index < nIndex; index++) { |
1136 | 603 |
element = __InstPtr(self)->i_instvars[index]; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
604 |
if (element != nil) { |
1903 | 605 |
if (InterruptPending != nil) { |
606 |
__interruptL(@line CONARG); |
|
607 |
/* refetch; who knows what is done in the interrupt ... */ |
|
608 |
element = __InstPtr(self)->i_instvars[index]; |
|
609 |
} |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
610 |
element = __WEAK_READ__(self, element); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
611 |
if (element != nil) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
612 |
(*codeVal)(home, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
613 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
614 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
615 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
616 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
617 |
#endif |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
618 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
619 |
for (; index < nIndex; index++) { |
1136 | 620 |
element = __InstPtr(self)->i_instvars[index]; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
621 |
if (element != nil) { |
1903 | 622 |
if (InterruptPending != nil) { |
623 |
__interruptL(@line CONARG); |
|
624 |
/* refetch; who knows what is done in the interrupt ... */ |
|
625 |
element = __InstPtr(self)->i_instvars[index]; |
|
626 |
} |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
627 |
element = __WEAK_READ__(self, element); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
628 |
if (element != nil) { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
629 |
(*val.ilc_func)(aBlock, |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
630 |
@symbol(value:), |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
631 |
nil, &val, |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
632 |
element); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
633 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
634 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
635 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
636 |
} |
604 | 637 |
%}. |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
638 |
^ self |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
639 |
! ! |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
640 |
|
603 | 641 |
!WeakArray methodsFor:'notification'! |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
642 |
|
603 | 643 |
lostPointer |
1785
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
644 |
"I lost a pointer; tell watcher and/or dependents. |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
645 |
This is sent from the finalization code in ObjectMemory." |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
646 |
|
1785
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
647 |
watcher notNil ifTrue:[ |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
648 |
watcher informDispose |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
649 |
]. |
603 | 650 |
dependents notNil ifTrue:[ |
1785
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
651 |
self changed:#ElementExpired with:nil. |
603 | 652 |
]. |
1785
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
653 |
|
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
654 |
"Modified: 18.10.1996 / 21:28:10 / cg" |
603 | 655 |
! ! |
6 | 656 |
|
628 | 657 |
!WeakArray class methodsFor:'documentation'! |
658 |
||
659 |
version |
|
1903 | 660 |
^ '$Header: /cvs/stx/stx/libbasic/WeakArray.st,v 1.36 1996-11-06 12:17:58 cg Exp $' |
628 | 661 |
! ! |
603 | 662 |
WeakArray initialize! |