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5409
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"{ Package: 'stx:libbasic' }"
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OSHandle subclass:#OSFileHandle
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instanceVariableNames:''
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classVariableNames:'ConcreteClass'
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poolDictionaries:''
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category:'System-Support'
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!
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!OSFileHandle class methodsFor:'initialization'!
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initialize
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"initialize for the OS we are running on"
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self initializeConcreteClass
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"
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self initialize
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"
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!
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initializeConcreteClass
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"initialize for the OS we are running on"
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OperatingSystem isMSDOSlike ifTrue:[
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ConcreteClass := Win32FileHandle
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] ifFalse:[
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OperatingSystem isVMSlike ifTrue:[
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ConcreteClass := OpenVMSFileHandle
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] ifFalse:[
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OperatingSystem isUNIXlike ifTrue:[
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ConcreteClass := UnixFileHandle
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] ifFalse:[
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ConcreteClass := nil
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]
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]
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]
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"
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self initializeConcreteClass
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"
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"Modified: 7.9.1997 / 23:32:37 / cg"
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!
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reinitialize
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"initialize for the OS we are running on"
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self initializeConcreteClass
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"
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self reinitialize
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"
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! !
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!OSFileHandle methodsFor:'finalization'!
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disposed
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"a filedescriptor was garbage collected - close the underlying file"
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self closeFile
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! !
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!OSFileHandle methodsFor:'input/output'!
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readBytes:count into:aByteBuffer startingAt:startAddress
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"read count bytes into a byte-buffer;
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Return the number of bytes read (negative on error)"
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^ self subclassResponsibility
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!
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writeBytes:count from:aByteBuffer startingAt:startAddress
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"write count bytes from a byte-buffer;
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Return the number of bytes written (negative on error)"
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^ self subclassResponsibility
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! !
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!OSFileHandle methodsFor:'release'!
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close
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"close the file"
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self closeFile.
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self unregisterForFinalization.
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!
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closeFile
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"close the underlying file"
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self subclassResponsibility
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! !
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!OSFileHandle class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/libbasic/OSFileHandle.st,v 1.3 2000-06-23 19:43:57 cg Exp $'
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! !
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OSFileHandle initialize!
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