author | Stefan Vogel <sv@exept.de> |
Wed, 08 Jan 1997 20:42:17 +0100 | |
changeset 2091 | c11bb3e29a1b |
parent 1903 | 30c98b3377c5 |
child 2145 | d243ffafeae3 |
permissions | -rw-r--r-- |
6 | 1 |
" |
2 |
COPYRIGHT (c) 1991 by Claus Gittinger |
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186 | 3 |
All Rights Reserved |
6 | 4 |
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5 |
This software is furnished under a license and may be used |
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6 |
only in accordance with the terms of that license and with the |
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7 |
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 |
|
9 |
other person. No title to or ownership of the software is |
|
10 |
hereby transferred. |
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11 |
" |
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12 |
||
2091
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Use dependent mechamism of WeakArray instead of #watcher.
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|
13 |
'From Smalltalk/X, Version:3.1.3 on 7-jan-1997 at 17:23:10' ! |
c11bb3e29a1b
Use dependent mechamism of WeakArray instead of #watcher.
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parents:
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|
14 |
|
603 | 15 |
Array subclass:#WeakArray |
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|
16 |
instanceVariableNames:'dependents' |
1263 | 17 |
classVariableNames:'RegistrationFailedSignal AlreadyInitialized' |
18 |
poolDictionaries:'' |
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category:'Collections-Arrayed' |
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6 | 20 |
! |
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||
22 |
!WeakArray class methodsFor:'documentation'! |
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||
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copyright |
25 |
" |
|
26 |
COPYRIGHT (c) 1991 by Claus Gittinger |
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186 | 27 |
All Rights Reserved |
88 | 28 |
|
29 |
This software is furnished under a license and may be used |
|
30 |
only in accordance with the terms of that license and with the |
|
31 |
inclusion of the above copyright notice. This software may not |
|
32 |
be provided or otherwise made available to, or used by, any |
|
33 |
other person. No title to or ownership of the software is |
|
34 |
hereby transferred. |
|
35 |
" |
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! |
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||
6 | 38 |
documentation |
39 |
" |
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88 | 40 |
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. |
290 | 46 |
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47 |
WeakArrays are used to track disposal of objects which keep external |
95 | 48 |
world resources. For example, FileStreams must close their underlying |
290 | 49 |
file when disposed (otherwise you could run out of OS filedescriptors). |
95 | 50 |
This can be done by keeping the FileStream objects in a weakArray, and |
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51 |
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 |
95 | 53 |
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 |
55 |
a more programmer friendly way. |
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95 | 56 |
|
290 | 57 |
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. |
59 |
(for example, the ResourcePack class uses a WeakArray to cache recently |
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60 |
used resource data for a while). |
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|
186 | 62 |
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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65 |
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. |
186 | 69 |
Also, as a side effect, it is possible to delay finalization by blocking |
216 | 70 |
interrupts. |
186 | 71 |
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72 |
A weakArray notifies its dependents via normal dependency notfications. |
186 | 73 |
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74 |
NOTICE: |
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75 |
WeakArray handling adds some overhead to the VM |
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76 |
(each weakarray is scanned after each GC). |
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77 |
It is uncertain, if the current mechanism works well |
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78 |
with (say) ten-thousands of weakArrays. |
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|
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|
80 |
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:] |
290 | 86 |
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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:] |
100 |
Claus Gittinger |
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[See also:] |
103 |
Array WeakIdentitySet WeakIdentityDictionary |
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" |
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! ! |
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!WeakArray class methodsFor:'initialization'! |
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109 |
initialize |
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"setup the private signal" |
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112 |
RegistrationFailedSignal isNil ifTrue:[ |
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RegistrationFailedSignal := ErrorSignal newSignalMayProceed:true. |
186 | 114 |
RegistrationFailedSignal nameClass:self message:#registrationFailedSignal. |
115 |
RegistrationFailedSignal notifierString:'weakArray registration failed'. |
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] |
117 |
! ! |
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||
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!WeakArray class methodsFor:'instance creation'! |
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121 |
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 |
290 | 126 |
methods are called is not defined ... |
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... therefore it could happen, that a WeakArray is used by other |
128 |
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:[ |
133 |
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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140 |
!WeakArray methodsFor:'GC registration'! |
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142 |
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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%{ |
149 |
OBJ __addShadowObject(); |
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159 | 151 |
ok = __addShadowObject(self, 0); |
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if (ok == false) { |
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/* |
154 |
* 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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* 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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* |
161 |
* 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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*/ |
326 | 167 |
__nonTenuringScavenge(__context); |
186 | 168 |
ok = __addShadowObject(self, 0); |
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#ifdef OLD |
186 | 170 |
if (ok == false) { |
290 | 171 |
/* |
172 |
* try more ... |
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*/ |
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__scavenge(__context); |
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ok = __addShadowObject(self, 0); |
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#endif |
186 | 177 |
if (ok == false) { |
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/* |
179 |
* hard stuff - need full collect |
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462 | 180 |
* if this is the very first GC, assume that we are in |
181 |
* the startup phase. Then do no GC. |
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* Heuristics showed, that this GC does not find much ... |
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*/ |
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if ((__garbageCollectCount() != 0) |
185 |
|| (__incrementalGCCount() != 0)) { |
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462 | 186 |
__markAndSweepIfUseful(__context); |
187 |
ok = __addShadowObject(self, 0); |
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188 |
} |
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186 | 189 |
if (ok == false) { |
290 | 190 |
/* |
191 |
* mhmh - it seems that there are really many shadow |
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* objects around - force creation |
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193 |
*/ |
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186 | 194 |
ok = __addShadowObject(self, 1); |
195 |
if (ok == false) { |
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/* no chance - something must be wrong */ |
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} |
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198 |
} |
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} |
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308 | 200 |
#ifdef OLD |
186 | 201 |
} |
308 | 202 |
#endif |
6 | 203 |
} |
159 | 204 |
%}. |
205 |
ok ifFalse:[ |
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290 | 206 |
" |
207 |
the VM was not able to register the new weakArray |
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208 |
This can only happen, if the VM has to resize its tables, |
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209 |
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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Configure your OS for more swap space. |
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213 |
" |
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186 | 214 |
^ RegistrationFailedSignal raiseRequestWith:self |
159 | 215 |
] |
6 | 216 |
! ! |
217 |
||
603 | 218 |
!WeakArray methodsFor:'accessing'! |
219 |
||
220 |
at:index |
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221 |
"return the indexed instance variable with index, anInteger. |
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222 |
Reimplemented here for IGC readBarrier. You dont have to understand this." |
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223 |
||
224 |
^ self basicAt:index |
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225 |
! |
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603 | 227 |
basicAt:index |
228 |
"return the indexed instance variable with index, anInteger. |
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229 |
Reimplemented here for IGC readBarrier. You dont have to understand this." |
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230 |
||
231 |
%{ /* NOCONTEXT */ |
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232 |
||
233 |
REGISTER int indx; |
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234 |
REGISTER unsigned int nIndex; |
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235 |
OBJ el; |
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6 | 236 |
|
603 | 237 |
if (__isSmallInteger(index)) { |
1136 | 238 |
indx = __intVal(index) - 1; |
603 | 239 |
if (indx >= 0) { |
240 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
|
1136 | 241 |
indx += __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
603 | 242 |
if (indx < nIndex) { |
1136 | 243 |
el = __InstPtr(self)->i_instvars[indx]; |
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244 |
if (__isNonNilObject(el)) el = __WEAK_READ__(self, el); |
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|
245 |
RETURN (el); |
603 | 246 |
} |
247 |
} |
|
248 |
} |
|
249 |
%}. |
|
250 |
^ super basicAt:index |
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251 |
! |
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252 |
||
253 |
dependents |
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254 |
"return the dependents of the receiver" |
|
255 |
||
256 |
^ dependents |
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257 |
! |
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258 |
||
259 |
dependents:aCollection |
|
260 |
"set the dependents of the receiver" |
|
261 |
||
262 |
dependents := aCollection |
|
6 | 263 |
! ! |
264 |
||
159 | 265 |
!WeakArray methodsFor:'copying'! |
266 |
||
267 |
postCopy |
|
268 |
"copying alone does not really help - we have to tell |
|
269 |
the VM, that there is a new WeakArray around ... |
|
270 |
Q: who copies weakArrays ?" |
|
271 |
||
290 | 272 |
dependents := nil. |
159 | 273 |
self registerAsWeakArray. |
274 |
! ! |
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275 |
||
1825 | 276 |
!WeakArray methodsFor:'enumerating'! |
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277 |
|
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278 |
do:aBlock |
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279 |
"evaluate the argument, aBlock for each element in the collection. |
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280 |
- reimplemented for IGC readBarrier. You dont have to understand this." |
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281 |
|
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282 |
|home element| |
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283 |
%{ |
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284 |
REGISTER OBJFUNC codeVal; |
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285 |
REGISTER int index; |
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286 |
unsigned int nIndex; |
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287 |
static struct inlineCache val = _ILC1; |
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288 |
REGISTER OBJ rHome; |
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289 |
|
1136 | 290 |
index = __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
586
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291 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
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|
292 |
if (__isBlockLike(aBlock) |
1136 | 293 |
&& ((codeVal = __BlockInstPtr(aBlock)->b_code) != (OBJFUNC)nil) |
294 |
&& (__BlockInstPtr(aBlock)->b_nargs == __MKSMALLINT(1))) { |
|
586
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|
295 |
#ifdef NEW_BLOCK_CALL |
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|
296 |
for (; index < nIndex; index++) { |
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|
297 |
if (InterruptPending != nil) __interruptL(@line); |
1136 | 298 |
element = __InstPtr(self)->i_instvars[index]; |
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parents:
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diff
changeset
|
299 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
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|
300 |
(*codeVal)(aBlock, element); |
586
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|
301 |
} |
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|
302 |
#else |
1136 | 303 |
home = __BlockInstPtr(aBlock)->b_home; |
586
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304 |
rHome = home; |
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changeset
|
305 |
if ((rHome == nil) || (__qSpace(rHome) >= STACKSPACE)) { |
cab695f942a6
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diff
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|
306 |
/* |
cab695f942a6
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diff
changeset
|
307 |
* home will not move - keep in a fast register |
cab695f942a6
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parents:
530
diff
changeset
|
308 |
*/ |
cab695f942a6
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parents:
530
diff
changeset
|
309 |
for (; index < nIndex; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
310 |
if (InterruptPending != nil) __interruptL(@line); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
311 |
|
1136 | 312 |
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
|
313 |
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
|
314 |
(*codeVal)(rHome, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
315 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
316 |
} else { |
cab695f942a6
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Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
317 |
for (; index < nIndex; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
318 |
if (InterruptPending != nil) __interruptL(@line); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
319 |
|
1136 | 320 |
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
|
321 |
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
|
322 |
(*codeVal)(home, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
323 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
324 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
325 |
#endif |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
326 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
327 |
for (; index < nIndex; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
328 |
if (InterruptPending != nil) __interruptL(@line); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
329 |
|
1136 | 330 |
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
|
331 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
332 |
(*val.ilc_func)(aBlock, |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
333 |
@symbol(value:), |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
334 |
nil, &val, |
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
335 |
element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
336 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
337 |
} |
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
338 |
%}. |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
339 |
^ self |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
340 |
! |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
341 |
|
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
342 |
forAllDeadIndicesDo:aBlock |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
343 |
"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
|
344 |
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
|
345 |
|
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
346 |
self keysAndValuesDo:[:index :element | |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
347 |
element == 0 ifTrue:[ |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
348 |
aBlock value:index |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
349 |
] |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
350 |
] |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
351 |
! |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
352 |
|
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
353 |
forAllDeadIndicesDo:aBlock replacingCorpsesWith:newValue |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
354 |
"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
|
355 |
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
|
356 |
with newValue. |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
357 |
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
|
358 |
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
|
359 |
with future versions." |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
360 |
|
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
361 |
self keysAndValuesDo:[:index :element | |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
362 |
element == 0 ifTrue:[ |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
363 |
self at:index put:newValue. |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
364 |
aBlock value:index. |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
365 |
] |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
366 |
] |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
367 |
! |
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
368 |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
369 |
from:start to:stop do:aBlock |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
370 |
"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
|
371 |
up to (and including) stop in the collection. |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
372 |
- reimplemented for IGC readBarrier. You dont have to understand this." |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
373 |
|
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
374 |
|home element| |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
375 |
%{ |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
376 |
REGISTER OBJFUNC codeVal; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
377 |
REGISTER int index; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
378 |
REGISTER OBJ rHome; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
379 |
int nIndex, nInsts; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
380 |
static struct inlineCache val = _ILC1; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
381 |
int indexLow, indexHigh; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
382 |
|
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
383 |
if (__bothSmallInteger(start, stop)) { |
1136 | 384 |
indexLow = __intVal(start); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
385 |
if (indexLow > 0) { |
1136 | 386 |
indexHigh = __intVal(stop); |
387 |
nInsts = __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
388 |
indexLow += nInsts; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
389 |
indexHigh += nInsts; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
390 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
391 |
if (indexHigh <= nIndex) { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
392 |
indexLow--; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
393 |
indexHigh--; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
394 |
if (__isBlockLike(aBlock) |
1136 | 395 |
&& ((codeVal = __BlockInstPtr(aBlock)->b_code) != (OBJFUNC)nil) |
396 |
&& (__BlockInstPtr(aBlock)->b_nargs == __MKSMALLINT(1))) { |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
397 |
#ifdef NEW_BLOCK_CALL |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
398 |
for (index=indexLow; index <= indexHigh; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
399 |
if (InterruptPending != nil) __interruptL(@line); |
1136 | 400 |
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
|
401 |
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
|
402 |
(*codeVal)(aBlock, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
403 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
404 |
#else |
1136 | 405 |
home = __BlockInstPtr(aBlock)->b_home; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
406 |
rHome = home; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
407 |
if ((rHome == nil) || (__qSpace(rHome) >= STACKSPACE)) { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
408 |
index = indexLow; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
409 |
for (; index <= indexHigh; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
410 |
if (InterruptPending != nil) __interruptL(@line); |
1136 | 411 |
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
|
412 |
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
|
413 |
(*codeVal)(rHome, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
414 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
415 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
416 |
for (index=indexLow; index <= indexHigh; index++) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
417 |
if (InterruptPending != nil) __interruptL(@line); |
1136 | 418 |
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
|
419 |
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
|
420 |
(*codeVal)(home, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
421 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
422 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
423 |
#endif |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
424 |
} else { |
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); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
429 |
(*val.ilc_func) (aBlock, |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
430 |
@symbol(value:), |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
431 |
nil, &val, |
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
432 |
element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
433 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
434 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
435 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
436 |
RETURN ( self ); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
437 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
438 |
} |
1780
1b3a4ddc5b94
changed WeakArray to set emptied slots to zero
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
439 |
%}. |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
440 |
^ super from:start to:stop do:aBlock |
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 |
|
603 | 443 |
keysAndValuesDo:aBlock |
444 |
"evaluate the argument, aBlock for each element in the collection. |
|
445 |
Pass both index and element to the block. |
|
446 |
- reimplemented for speed" |
|
447 |
||
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
448 |
|home element| |
603 | 449 |
%{ |
450 |
REGISTER OBJFUNC codeVal; |
|
451 |
REGISTER int index; |
|
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
452 |
unsigned int nIndex, index0; |
603 | 453 |
static struct inlineCache val2 = _ILC2; |
454 |
REGISTER OBJ rHome; |
|
455 |
||
1136 | 456 |
index = __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
457 |
index0 = index; |
603 | 458 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
459 |
|
603 | 460 |
if (__isBlockLike(aBlock) |
1136 | 461 |
&& ((codeVal = __BlockInstPtr(aBlock)->b_code) != (OBJFUNC)nil) |
462 |
&& (__BlockInstPtr(aBlock)->b_nargs == __MKSMALLINT(2))) { |
|
603 | 463 |
#ifdef NEW_BLOCK_CALL |
464 |
for (; index < nIndex; index++) { |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
465 |
if (InterruptPending != nil) __interruptL(@line); |
603 | 466 |
|
1136 | 467 |
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
|
468 |
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
|
469 |
(*codeVal)(aBlock, __MKSMALLINT(index+1-index0), element); |
603 | 470 |
} |
471 |
#else |
|
1136 | 472 |
home = __BlockInstPtr(aBlock)->b_home; |
603 | 473 |
rHome = home; |
474 |
if ((rHome == nil) || (__qSpace(rHome) >= STACKSPACE)) { |
|
475 |
/* |
|
476 |
* home will not move - keep in a fast register |
|
477 |
*/ |
|
478 |
while (index < nIndex) { |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
479 |
if (InterruptPending != nil) __interruptL(@line); |
603 | 480 |
|
1136 | 481 |
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
|
482 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
603 | 483 |
index++; |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
484 |
(*codeVal)(rHome, __MKSMALLINT(index-index0), element); |
603 | 485 |
} |
486 |
} else { |
|
487 |
while (index < nIndex) { |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
488 |
if (InterruptPending != nil) __interruptL(@line); |
603 | 489 |
|
1136 | 490 |
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
|
491 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
603 | 492 |
index++; |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
493 |
(*codeVal)(home, __MKSMALLINT(index-index0), element); |
603 | 494 |
} |
495 |
} |
|
496 |
#endif |
|
497 |
} else { |
|
498 |
while (index < nIndex) { |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
499 |
if (InterruptPending != nil) __interruptL(@line); |
603 | 500 |
|
1136 | 501 |
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
|
502 |
if (__isNonNilObject(element)) element = __WEAK_READ__(self, element); |
603 | 503 |
index++; |
504 |
(*val2.ilc_func)(aBlock, |
|
505 |
@symbol(value:value:), |
|
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
506 |
nil, &val2, |
1782
76bcca2667a8
oops - keysAndValuesDo: passed the wrong index
Claus Gittinger <cg@exept.de>
parents:
1780
diff
changeset
|
507 |
__MKSMALLINT(index-index0), |
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
508 |
element); |
603 | 509 |
} |
510 |
} |
|
511 |
%}. |
|
512 |
^ self |
|
513 |
! |
|
514 |
||
1785
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
515 |
nilAllCorpsesAndDo:aBlock |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
516 |
"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
|
517 |
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
|
518 |
|
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
519 |
self forAllDeadIndicesDo:aBlock replacingCorpsesWith:nil |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
520 |
! |
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
521 |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
522 |
nonNilElementsDo:aBlock |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
523 |
"evaluate the argument, aBlock for each non-nil element" |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
524 |
|
981
6da206fcc1c4
keep ref to weak-element somewhere (this is a try)
Claus Gittinger <cg@exept.de>
parents:
829
diff
changeset
|
525 |
|home element| |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
526 |
%{ |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
527 |
REGISTER OBJFUNC codeVal; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
528 |
REGISTER int index; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
529 |
int nIndex; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
530 |
static struct inlineCache val = _ILC1; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
531 |
REGISTER OBJ rHome; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
532 |
|
1136 | 533 |
index = __intVal(__ClassInstPtr(__qClass(self))->c_ninstvars); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
534 |
nIndex = __BYTES2OBJS__(__qSize(self) - OHDR_SIZE); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
535 |
if (__isBlockLike(aBlock) |
1136 | 536 |
&& ((codeVal = __BlockInstPtr(aBlock)->b_code) != (OBJFUNC)nil) |
537 |
&& (__BlockInstPtr(aBlock)->b_nargs == __MKSMALLINT(1))) { |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
538 |
#ifdef NEW_BLOCK_CALL |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
539 |
for (; index < nIndex; index++) { |
1136 | 540 |
element = __InstPtr(self)->i_instvars[index]; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
541 |
if (element != nil) { |
1903 | 542 |
if (InterruptPending != nil) { |
543 |
__interruptL(CONARG); |
|
544 |
/* refetch; who knows what is done in the interrupt ... */ |
|
545 |
element = __InstPtr(self)->i_instvars[index]; |
|
546 |
} |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
547 |
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
|
548 |
if (element != nil) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
549 |
(*codeVal)(aBlock, element); |
759
908363ce8a32
interest is written with one 'r' (shame on me)
Claus Gittinger <cg@exept.de>
parents:
681
diff
changeset
|
550 |
} |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
551 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
552 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
553 |
#else |
1136 | 554 |
home = __BlockInstPtr(aBlock)->b_home; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
555 |
rHome = home; |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
556 |
if ((rHome == nil) || (__qSpace(rHome) >= STACKSPACE)) { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
557 |
/* |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
558 |
* home will not move - keep in in a register |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
559 |
*/ |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
560 |
for (; index < nIndex; index++) { |
1136 | 561 |
element = __InstPtr(self)->i_instvars[index]; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
562 |
if (element != nil) { |
1903 | 563 |
if (InterruptPending != nil) { |
564 |
__interruptL(CONARG); |
|
565 |
/* refetch; who knows what is done in the interrupt ... */ |
|
566 |
element = __InstPtr(self)->i_instvars[index]; |
|
567 |
} |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
568 |
element = __WEAK_READ__(self, element); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
569 |
if (element != nil) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
570 |
(*codeVal)(rHome, element); |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
571 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
572 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
573 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
574 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
575 |
for (; index < nIndex; index++) { |
1136 | 576 |
element = __InstPtr(self)->i_instvars[index]; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
577 |
if (element != nil) { |
1903 | 578 |
if (InterruptPending != nil) { |
579 |
__interruptL(@line CONARG); |
|
580 |
/* refetch; who knows what is done in the interrupt ... */ |
|
581 |
element = __InstPtr(self)->i_instvars[index]; |
|
582 |
} |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
583 |
element = __WEAK_READ__(self, element); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
584 |
if (element != nil) { |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
585 |
(*codeVal)(home, element); |
586
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 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
588 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
589 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
590 |
#endif |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
591 |
} else { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
592 |
for (; index < nIndex; index++) { |
1136 | 593 |
element = __InstPtr(self)->i_instvars[index]; |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
594 |
if (element != nil) { |
1903 | 595 |
if (InterruptPending != nil) { |
596 |
__interruptL(@line CONARG); |
|
597 |
/* refetch; who knows what is done in the interrupt ... */ |
|
598 |
element = __InstPtr(self)->i_instvars[index]; |
|
599 |
} |
|
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
600 |
element = __WEAK_READ__(self, element); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
601 |
if (element != nil) { |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
602 |
(*val.ilc_func)(aBlock, |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
603 |
@symbol(value:), |
1688
8a42db1eea60
removed all COMMA_CON / CON_COMMA uses
Claus Gittinger <cg@exept.de>
parents:
1290
diff
changeset
|
604 |
nil, &val, |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
605 |
element); |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
606 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
607 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
608 |
} |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
609 |
} |
604 | 610 |
%}. |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
611 |
^ self |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
612 |
! ! |
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
613 |
|
603 | 614 |
!WeakArray methodsFor:'notification'! |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
615 |
|
603 | 616 |
lostPointer |
2091
c11bb3e29a1b
Use dependent mechamism of WeakArray instead of #watcher.
Stefan Vogel <sv@exept.de>
parents:
1903
diff
changeset
|
617 |
"I lost a pointer; tell dependents. |
1785
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
618 |
This is sent from the finalization code in ObjectMemory." |
586
cab695f942a6
weakArray readBarrier for IGC
Claus Gittinger <cg@exept.de>
parents:
530
diff
changeset
|
619 |
|
603 | 620 |
dependents notNil ifTrue:[ |
1785
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
621 |
self changed:#ElementExpired with:nil. |
603 | 622 |
]. |
1785
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
623 |
|
4b18823528b8
commentary & change-aspect made ST-80 compatible
Claus Gittinger <cg@exept.de>
parents:
1782
diff
changeset
|
624 |
"Modified: 18.10.1996 / 21:28:10 / cg" |
2091
c11bb3e29a1b
Use dependent mechamism of WeakArray instead of #watcher.
Stefan Vogel <sv@exept.de>
parents:
1903
diff
changeset
|
625 |
"Modified: 7.1.1997 / 17:22:52 / stefan" |
603 | 626 |
! ! |
6 | 627 |
|
628 | 628 |
!WeakArray class methodsFor:'documentation'! |
629 |
||
630 |
version |
|
2091
c11bb3e29a1b
Use dependent mechamism of WeakArray instead of #watcher.
Stefan Vogel <sv@exept.de>
parents:
1903
diff
changeset
|
631 |
^ '$Header: /cvs/stx/stx/libbasic/WeakArray.st,v 1.37 1997-01-08 19:42:14 stefan Exp $' |
628 | 632 |
! ! |
603 | 633 |
WeakArray initialize! |