author | Stefan Vogel <sv@exept.de> |
Thu, 16 Apr 2020 16:57:05 +0200 | |
changeset 25362 | f1606835f9fb |
parent 22605 | e517e048e546 |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1997 by eXept Software AG / 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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"{ Package: 'stx:libbasic' }" |
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"{ NameSpace: Smalltalk }" |
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Object subclass:#OSErrorHolder |
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instanceVariableNames:'errorNumber errorSymbol errorCategory parameter' |
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classVariableNames:'Signals' |
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poolDictionaries:'' |
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category:'OS-Support' |
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! |
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!OSErrorHolder class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1997 by eXept Software AG / 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 |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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" |
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This class represents low level operating system errors. |
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We do not use error numbers, because there may be different errnos |
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for the same error on different systems. |
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[instance variables:] |
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errorSymbol symbol associated with this error |
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errorCategory symbol defining the error category. |
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This is in fact a symbol that returns a |
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Signal when sent to myself. |
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While the errorSymbol may be different on different platforms, |
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the errorCategories (which refer to the Signals that will be raised) |
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are identical. |
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You can get an OS independent error message for an error by sending |
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#errorCategoryString. |
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[author:] |
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Stefan Vogel |
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[see also:] |
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OperatingSystem |
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! ! |
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!OSErrorHolder class methodsFor:'instance creation'! |
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errorNumber:num errorSymbol:sym errorCategory:typ |
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^ self new |
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errorNumber:num errorSymbol:sym errorCategory:typ |
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! |
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errorSymbol:sym errorCategory:typ |
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^ self new |
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errorSymbol:sym errorCategory:typ |
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! |
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unsupportedOperation |
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^ self new |
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errorSymbol:'operation not supported' errorCategory:#unsupportedOperationSignal |
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! ! |
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!OSErrorHolder class methodsFor:'Signal constants'! |
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allocRetrySignal |
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^ self signals at:#allocRetrySignal |
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! |
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badAccessorSignal |
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^ self signals at:#badAccessorSignal |
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! |
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badArgumentsSignal |
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^ self signals at:#badArgumentsSignal |
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! |
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classNotRegisteredSignal |
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^ self signals at:#classNotRegisteredSignal |
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! |
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coNotInitializedSignal |
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^ self signals at:#coNotInitializedSignal |
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! |
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defaultOsErrorSignal |
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^ self signals at:#defaultOsErrorSignal |
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! |
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existingReferentSignal |
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^ self signals at:#existingReferentSignal |
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! |
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illegalOperationSignal |
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^ self signals at:#illegalOperationSignal |
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! |
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inaccessibleSignal |
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^ self signals at:#inaccessibleSignal |
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! |
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inappropriateOperationSignal |
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^ self signals at:#inappropriateOperationSignal |
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! |
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inappropriateReferentSignal |
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^ self signals at:#inappropriateReferentSignal |
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! |
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invalidArgumentsSignal |
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"return the signal for invalid arguments (e.g. right class, wrong value)." |
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^ self signals at:#invalidArgumentsSignal |
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! |
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needRetrySignal |
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^ self signals at:#needRetrySignal |
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! |
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noAggregationSignal |
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^ self signals at:#noAggregationSignal |
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! |
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noAssociationSignal |
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^ self signals at:#noAssociationSignal |
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! |
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noDataSignal |
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^ self signals at:#noDataSignal |
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! |
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noInterfaceSignal |
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^ self signals at:#noInterfaceSignal |
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! |
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noMemorySignal |
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^ self signals at:#noMemorySignal |
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! |
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noPermissionsSignal |
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^ self signals at:#noPermissionsSignal |
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! |
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noResourcesSignal |
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^ self signals at:#noResourcesSignal |
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! |
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noVerbsSignal |
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^ self signals at:#noVerbsSignal |
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! |
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nonexistentSignal |
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"return the signal for non existing referents (i.e. device, file etc.)." |
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^ self signals at:#nonexistentSignal |
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! |
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notReadySignal |
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^ self signals at:#notReadySignal |
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! |
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peerFaultSignal |
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^ self signals at:#peerFaultSignal |
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! |
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rangeErrorSignal |
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^ self signals at:#rangeErrorSignal |
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! |
189 |
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signalNamed:signalName |
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^ self signals at:signalName |
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! |
193 |
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signals |
195 |
Signals isNil ifTrue:[ |
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self initializeSignals |
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]. |
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^ Signals |
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199 |
! |
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transferFaultSignal |
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^ self signals at:#transferFaultSignal |
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! |
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205 |
transientErrorSignal |
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^ self signals at:#transientErrorSignal |
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! |
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unavailableReferentSignal |
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^ self signals at:#unavailableReferentSignal |
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! |
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213 |
underSpecifiedSignal |
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^ self signals at:#underSpecifiedSignal |
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! |
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unknownNameSignal |
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^ self signals at:#unknownNameSignal |
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! |
220 |
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unpreparedOperationSignal |
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^ self signals at:#unpreparedOperationSignal |
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! |
224 |
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225 |
unsupportedOperationSignal |
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^ self signals at:#unsupportedOperationSignal |
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! |
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229 |
volumeFullSignal |
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^ self signals at:#volumeFullSignal |
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! |
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wrongSubtypeForOperationSignal |
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^ self signals at:#wrongSubtypeForOperationSignal |
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! ! |
236 |
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!OSErrorHolder class methodsFor:'accessing'! |
238 |
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239 |
errorSignal |
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15191 | 240 |
^ OsError |
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242 |
"Created: 25.1.1997 / 18:07:55 / cg" |
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! ! |
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244 |
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!OSErrorHolder class methodsFor:'class initialization'! |
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initializeSignals |
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"init signals etc." |
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249 |
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|unavailableReferentSignal| |
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252 |
Signals isNil ifTrue:[ |
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Signals := Dictionary new:40. |
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OsNoResourcesError notifierString:'Not enough resources'. |
256 |
Signals at:#noResourcesSignal put:OsNoResourcesError. |
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OsIllegalOperation notifierString:'Illegal Operation'. |
259 |
Signals at:#illegalOperationSignal put:OsIllegalOperation. |
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OsInvalidArgumentsError notifierString:'Invalid Arguments'. |
262 |
Signals at:#invalidArgumentsSignal put:OsInvalidArgumentsError. |
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OsInaccessibleError notifierString:'Referent inaccessible'. |
265 |
Signals at:#inaccessibleSignal put:OsInaccessibleError. |
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6297 | 266 |
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OsTransferFaultError notifierString:'Transfer fault'. |
268 |
Signals at:#transferFaultSignal put:OsTransferFaultError. |
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OsNeedRetryError notifierString:'Retry Operation'. |
271 |
Signals at:#needRetrySignal put:OsNeedRetryError. |
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Signals at:#defaultOsErrorSignal put:OsError. |
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"/ Information signals |
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"/ s := self setupSignal:#informationSignal parent:OSErrorSignal |
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"/ notifier:'Information'. |
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"/ self setupSignal:#operationStartedSignal parent:s |
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"/ notifier:'Operation started'. |
281 |
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"/ Retry signals |
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21048 | 284 |
self setupSignal:#notReadySignal parent:OsNeedRetryError |
285 |
notifier:' -- referent not ready'. |
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286 |
self setupSignal:#transientErrorSignal parent:OsNeedRetryError |
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287 |
notifier:' -- transient error'. |
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288 |
self setupSignal:#allocRetrySignal parent:OsNeedRetryError |
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289 |
notifier:' -- allocation failure'. |
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21048 | 291 |
"/ Resource signals |
6271 | 292 |
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21048 | 293 |
self setupSignal:#noMemorySignal parent:OsNoResourcesError |
294 |
notifier:' -- memory'. |
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"/ Transfer faults |
6271 | 297 |
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self setupSignal:#noDataSignal parent:OsTransferFaultError |
299 |
notifier:'Data unavailable/EOF reached'. |
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300 |
self setupSignal:#peerFaultSignal parent:OsTransferFaultError |
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301 |
notifier:'Communication with peer failed'. |
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302 |
self setupSignal:#volumeFullSignal parent:OsTransferFaultError |
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303 |
notifier:'Volume full'. |
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"/ Inaccessible faults |
6271 | 306 |
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21048 | 307 |
self setupSignal:#nonexistentSignal parent:OsInaccessibleError |
308 |
notifier:'File does not exist'. |
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309 |
unavailableReferentSignal := |
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310 |
self setupSignal:#unavailableReferentSignal parent:OsInaccessibleError |
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311 |
notifier:' currently'. |
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312 |
self setupSignal:#noPermissionsSignal parent:OsInaccessibleError |
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313 |
notifier:'Permission denied'. |
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314 |
self setupSignal:#existingReferentSignal parent:OsInaccessibleError |
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315 |
notifier:' -- already exists or currently in use'. |
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316 |
self setupSignal:#inappropriateReferentSignal parent:OsInaccessibleError |
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317 |
notifier:' -- operation inappropriate'. |
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21048 | 319 |
"/ Illegal operations |
6271 | 320 |
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21048 | 321 |
self setupSignal:#inappropriateOperationSignal parent:OsIllegalOperation |
322 |
notifier:'Inappropriate operation'. |
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323 |
self setupSignal:#wrongSubtypeForOperationSignal parent:OsIllegalOperation |
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324 |
notifier:' -- wrong subtype'. |
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325 |
self setupSignal:#unsupportedOperationSignal parent:OsIllegalOperation |
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326 |
notifier:' -- on this platform'. |
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327 |
self setupSignal:#unpreparedOperationSignal parent:OsIllegalOperation |
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328 |
notifier:' -- wrong sequence'. |
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6271 | 329 |
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21048 | 330 |
"/ Illegal arguments |
6271 | 331 |
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21048 | 332 |
self setupSignal:#badArgumentsSignal parent:OsInvalidArgumentsError |
333 |
notifier:' -- wrong class'. |
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334 |
self setupSignal:#badAccessorSignal parent:OsInvalidArgumentsError |
|
335 |
notifier:' -- accessor invalid'. |
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336 |
self setupSignal:#rangeErrorSignal parent:OsInvalidArgumentsError |
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337 |
notifier:' -- out of range'. |
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338 |
self setupSignal:#underSpecifiedSignal parent:OsInvalidArgumentsError |
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339 |
notifier:' -- operation not fully specified'. |
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9164 | 340 |
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21048 | 341 |
"/ COM errors |
342 |
self setupSignal:#coNotInitializedSignal parent:OsIllegalOperation |
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343 |
notifier:'COM not initialized'. |
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344 |
self setupSignal:#noInterfaceSignal parent:unavailableReferentSignal |
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345 |
notifier:'No such interface'. |
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346 |
self setupSignal:#classNotRegisteredSignal parent:unavailableReferentSignal |
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347 |
notifier:'Class not registered'. |
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348 |
self setupSignal:#noAggregationSignal parent:OsIllegalOperation |
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349 |
notifier:'No Aggregation'. |
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350 |
self setupSignal:#unknownNameSignal parent:unavailableReferentSignal |
|
351 |
notifier:'Unknown member name'. |
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352 |
self setupSignal:#noVerbsSignal parent:OsIllegalOperation |
|
353 |
notifier:'No verbs for OLE object'. |
|
11031 | 354 |
|
21048 | 355 |
"/ Shell errors |
356 |
self setupSignal:#noAssociationSignal parent:unavailableReferentSignal |
|
357 |
notifier:'No association for file extension'. |
|
6271 | 358 |
]. |
359 |
||
360 |
" |
|
18355
a584e6b0919f
lazy initialization of signals
Claus Gittinger <cg@exept.de>
parents:
17464
diff
changeset
|
361 |
Signals := nil. |
a584e6b0919f
lazy initialization of signals
Claus Gittinger <cg@exept.de>
parents:
17464
diff
changeset
|
362 |
self initializeSignals |
6271 | 363 |
" |
6297 | 364 |
! |
365 |
||
366 |
setupSignal:aSymbol parent:parentSignal notifier:aString |
|
367 |
"setup a signal, which can be retrieved by sending aSymbol to self. |
|
368 |
Return the new signal" |
|
369 |
||
370 |
|s| |
|
371 |
||
372 |
Signals at:aSymbol |
|
18355
a584e6b0919f
lazy initialization of signals
Claus Gittinger <cg@exept.de>
parents:
17464
diff
changeset
|
373 |
put:(s := parentSignal newSignal |
a584e6b0919f
lazy initialization of signals
Claus Gittinger <cg@exept.de>
parents:
17464
diff
changeset
|
374 |
notifierString:aString; |
a584e6b0919f
lazy initialization of signals
Claus Gittinger <cg@exept.de>
parents:
17464
diff
changeset
|
375 |
nameClass:self message:aSymbol). |
6297 | 376 |
^ s |
6271 | 377 |
! ! |
378 |
||
6270 | 379 |
!OSErrorHolder methodsFor:'accessing'! |
380 |
||
15463 | 381 |
errorCategory |
382 |
^ errorCategory |
|
383 |
! |
|
384 |
||
22120 | 385 |
errorNumber |
386 |
^ errorNumber |
|
387 |
! |
|
388 |
||
389 |
errorNumber:num errorSymbol:sym errorCategory:typ |
|
390 |
errorNumber := num. |
|
391 |
errorSymbol := sym. |
|
392 |
errorCategory := typ ? #defaultOsErrorSignal. |
|
393 |
! |
|
394 |
||
18355
a584e6b0919f
lazy initialization of signals
Claus Gittinger <cg@exept.de>
parents:
17464
diff
changeset
|
395 |
errorSymbol |
15463 | 396 |
^ errorSymbol |
397 |
! |
|
398 |
||
6280 | 399 |
errorSymbol:sym errorCategory:typ |
6270 | 400 |
errorSymbol := sym. |
21058 | 401 |
errorCategory := typ ? #defaultOsErrorSignal. |
10388 | 402 |
! |
403 |
||
404 |
parameter |
|
405 |
^ parameter |
|
406 |
! |
|
407 |
||
408 |
parameter:something |
|
409 |
parameter := something. |
|
6270 | 410 |
! ! |
411 |
||
6294 | 412 |
!OSErrorHolder methodsFor:'error reporting'! |
413 |
||
414 |
reportError |
|
415 |
"Report an error." |
|
416 |
"Delegate to the receiver's error reporter." |
|
417 |
||
9179 | 418 |
|signal| |
419 |
||
420 |
signal := self class signalNamed:errorCategory. |
|
18355
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lazy initialization of signals
Claus Gittinger <cg@exept.de>
parents:
17464
diff
changeset
|
421 |
signal |
21048 | 422 |
raiseWith:self |
423 |
errorString:(parameter isNil ifTrue:[nil] ifFalse:[' - ', parameter printString]) |
|
424 |
in:(thisContext "sender"). |
|
425 |
||
426 |
" |
|
427 |
(OperatingSystem errorHolderForNumber:22) reportError |
|
428 |
" |
|
429 |
! |
|
430 |
||
431 |
reportError:errorMessage |
|
432 |
"Report an error. Show insert errorMessage into error string." |
|
433 |
"Delegate to the receiver's error reporter." |
|
434 |
||
21061 | 435 |
|signal| |
9179 | 436 |
|
21048 | 437 |
signal := self class signalNamed:errorCategory. |
438 |
signal |
|
439 |
raiseWith:self |
|
21061 | 440 |
errorString:(self makeErrorStringFor:errorMessage) |
21048 | 441 |
in:(thisContext "sender"). |
19531 | 442 |
! |
443 |
||
444 |
reportProceedableError |
|
445 |
"Report an error." |
|
446 |
"Delegate to the receiver's error reporter." |
|
447 |
||
448 |
|signal| |
|
449 |
||
450 |
signal := self class signalNamed:errorCategory. |
|
451 |
signal |
|
452 |
raiseRequestWith:self |
|
453 |
errorString:(parameter isNil ifTrue:[nil] ifFalse:[' - ', parameter printString]) |
|
454 |
in:(thisContext "sender"). |
|
455 |
||
456 |
"/ ^ self errorReporter reportOn:self |
|
21061 | 457 |
! |
458 |
||
459 |
reportProceedableError:errorMessage |
|
460 |
"Report an error. Show insert errorMessage into error string." |
|
461 |
"Delegate to the receiver's error reporter." |
|
462 |
||
463 |
|signal| |
|
464 |
||
465 |
signal := self class signalNamed:errorCategory. |
|
466 |
signal |
|
467 |
raiseRequestWith:self |
|
468 |
errorString:(self makeErrorStringFor:errorMessage) |
|
469 |
in:(thisContext "sender"). |
|
6294 | 470 |
! ! |
471 |
||
6271 | 472 |
!OSErrorHolder methodsFor:'others'! |
473 |
||
21048 | 474 |
description |
10388 | 475 |
|s| |
476 |
||
21048 | 477 |
s := self errorString. |
10388 | 478 |
parameter notNil ifTrue:[ |
21048 | 479 |
^ s,': ',parameter printString. |
10388 | 480 |
]. |
481 |
^ s |
|
482 |
||
483 |
"Modified: / 12-02-2007 / 12:29:07 / cg" |
|
21048 | 484 |
! |
485 |
||
486 |
errorString |
|
487 |
^ OperatingSystem errorStringForSymbol:errorSymbol. |
|
15463 | 488 |
! ! |
489 |
||
490 |
!OSErrorHolder methodsFor:'printing'! |
|
6270 | 491 |
|
15463 | 492 |
printOn:aStream |
18355
a584e6b0919f
lazy initialization of signals
Claus Gittinger <cg@exept.de>
parents:
17464
diff
changeset
|
493 |
aStream |
22120 | 494 |
nextPutAll:self className; |
495 |
nextPut:$(; |
|
496 |
nextPutAll:errorSymbol; |
|
497 |
nextPutAll:', '; |
|
498 |
nextPutAll:errorCategory. |
|
499 |
errorNumber notNil ifTrue:[ |
|
500 |
aStream |
|
501 |
nextPutAll:' <'; |
|
502 |
print:errorNumber; |
|
503 |
nextPutAll:'>' |
|
504 |
]. |
|
505 |
aStream |
|
506 |
nextPut:$). |
|
6270 | 507 |
! ! |
6271 | 508 |
|
21061 | 509 |
!OSErrorHolder methodsFor:'private'! |
510 |
||
511 |
makeErrorStringFor:aString |
|
512 |
"Private: compute an errorString from myself and aString" |
|
513 |
||
514 |
|errorString| |
|
515 |
||
516 |
errorString := aString ? ''. |
|
517 |
parameter notNil ifTrue:[ |
|
518 |
errorString notEmpty ifTrue:[ |
|
519 |
errorString := errorString, ': '. |
|
520 |
]. |
|
521 |
errorString := errorString, parameter printString. |
|
522 |
]. |
|
523 |
errorString notEmptyOrNil ifTrue:[ |
|
524 |
errorString := ' - ', errorString. |
|
525 |
] ifFalse:[ |
|
526 |
errorString := nil. |
|
527 |
]. |
|
528 |
||
529 |
^ errorString. |
|
530 |
! ! |
|
531 |
||
21070 | 532 |
!OSErrorHolder methodsFor:'testing'! |
533 |
||
534 |
isOSErrorHolder |
|
535 |
^ true |
|
536 |
! ! |
|
537 |
||
7593 | 538 |
!OSErrorHolder class methodsFor:'documentation'! |
539 |
||
540 |
version |
|
19531 | 541 |
^ '$Header$' |
12155 | 542 |
! |
543 |
||
544 |
version_CVS |
|
19531 | 545 |
^ '$Header$' |
7593 | 546 |
! ! |
547 |