Fixed JavaNativeMethodImpl_OpenJDK6 class>>invoke:receiver:arguments:context:constructor:
"
COPYRIGHT (c) 1996-2011 by Claus Gittinger
New code and modifications done at SWING Research Group [1]:
COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko
SWING Research Group, Czech Technical University in Prague
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
[1] Code written at SWING Research Group contains a signature
of one of the above copright owners. For exact set of such code,
see the differences between this version and version stx:libjava
as of 1.9.2010
"
"{ Package: 'stx:libjava' }"
JavaMethodWithHandler variableSubclass:#JavaNativeMethod
instanceVariableNames:'nativeImplementation nCalls'
classVariableNames:'CacheNativeImplementation Verbose'
poolDictionaries:''
category:'Languages-Java-Classes'
!
!JavaNativeMethod class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 1996-2011 by Claus Gittinger
New code and modifications done at SWING Research Group [1]:
COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko
SWING Research Group, Czech Technical University in Prague
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
[1] Code written at SWING Research Group contains a signature
of one of the above copright owners. For exact set of such code,
see the differences between this version and version stx:libjava
as of 1.9.2010
"
! !
!JavaNativeMethod class methodsFor:'initialization'!
cacheNativeImplementation
"For details, see #cacheNativeImplementation:"
^CacheNativeImplementation
"Created: / 30-04-2011 / 23:38:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
cacheNativeImplementation: aBoolean
"If set, native implementations are cached, resulting
in better performance when calling native methods.
Hower, no change in native method implemenetaion will
not be visible then, unless #flushAllCachedNativeMethods
is explictely called"
CacheNativeImplementation := aBoolean
"Created: / 30-04-2011 / 23:38:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
initialize
self flags: (self flags bitOr: Behavior flagJavaMethod).
"By default, do not cache native impls while developing"
CacheNativeImplementation := Smalltalk isStandAloneApp.
Verbose := false.
"
Verbose := true.
"
"Modified: / 30-04-2011 / 23:35:40 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified (comment): / 03-11-2011 / 10:48:12 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
! !
!JavaNativeMethod class methodsFor:'cleanup'!
flushAllCachedNativeMethods
self allInstancesDo:[:aNativeMethod |
aNativeMethod nativeImplementation:nil
].
"
self flushAllCachedNativeMethods
"
"Created: / 24.12.1999 / 03:10:38 / cg"
"Modified: / 24.12.1999 / 03:10:51 / cg"
! !
!JavaNativeMethod methodsFor:'accessing'!
nCalls
^ nCalls ? 0
"Modified: / 27-10-2012 / 18:05:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
nCallsReset
nCalls := 0
"Modified: / 27-10-2012 / 18:05:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
nativeImplementation
"return the value of the instance variable 'nativeImplementation' (automatically generated)"
^ nativeImplementation
"Created: / 25.9.1999 / 23:08:00 / cg"
!
nativeImplementation:something
"set the value of the instance variable 'nativeImplementation' (automatically generated)"
nativeImplementation := something.
"Created: / 25.9.1999 / 23:08:00 / cg"
!
sourceLineNumber
^super sourceLineNumber
"/ ForceByteCodeDisplay == true ifTrue:[ ^ 1].
"/ lineNumberTable notNil ifTrue:[ ^ lineNumberTable at:2].
"/ ^1
"
^ (JavaSourceCodeCache new)
findLineForMethod:(self selector)
inClass:javaClass.
"
"Modified: / 13-12-2010 / 13:55:55 / Jan Kurs <kurs.jan@post.cz>"
"Modified: / 13-12-2010 / 23:46:30 / Marcel Hlopko <hlopik@gmail.com>"
"Created: / 17-12-2010 / 10:34:43 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaNativeMethod methodsFor:'private'!
compileNativeImplementation: sel dispatchingTo: oldSel
| src arg converted |
src := (JavaVM class compiledMethodAt: oldSel) source.
src := src asStringCollection.
(src first includesString: 'aJavaContext') ifTrue:[
arg := 'aJavaContext'
] ifFalse:[
(src first includesString: 'nativeContext') ifTrue:[
arg := 'nativeContext'
]
].
arg ifNotNil:[
src removeFirst asString.
converted := true.
] ifNil:[
arg := 'nativeContext'.
src := ' self breakPoint: #jv info: ''Convert it to new-style natives''.
^ self ', oldSel, ' nativeContext'.
converted := false.
].
(JavaVM class
compile:
(self nativeMethodTemplate bindWith:sel with: arg with: src asString)
classified:
'native - ', ((javaClass javaPackage upTo:$$) replaceAll:$/ with:$. ))
package: JavaVM package.
converted ifTrue:[
(JavaVM class compiledMethodAt: oldSel) category: 'native - old-style (converted)'
] ifFalse:[
(JavaVM class compiledMethodAt: oldSel) category: 'native - old-style (FAILED to convert)'
]
"Created: / 01-05-2011 / 00:08:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 01-05-2011 / 13:15:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
compileNativeImplementationStub: sel
(JavaVM class
compile:
(self nativeMethodTemplate bindWith:sel with: 'nativeContext' with:('^ JavaVM unimplementedNativeMethodSignal raise'))
classified:
'native - ', ((javaClass javaPackage upTo:$$) replaceAll:$/ with:$.))
package: JavaVM package
"Created: / 01-05-2011 / 00:08:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 16-01-2013 / 21:26:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
nativeMethodTemplate
^'%1 %2
<javanative: ''', javaClass name , ''' name: ''', (selector copyWithoutLast:signature size), '''>
%3'
"Created: / 01-05-2011 / 00:12:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
searchNativeImplementation
"Returns a SELECTOR of native method implementation.
For now, two naming schemes are used. The onld one uses
just a class name and selector as a name for native method impl.
The new one uses fully qualified class name.
"
| nm newStyleSel oldStyleSel |
nm := selector upTo: $(.
newStyleSel := ('_' , ((javaClass name copyReplaceAll:$/ with:$_) replaceAll:$$ with:$_), '_' , nm , ':') asSymbol.
(JavaVM natives class canUnderstand: newStyleSel) ifTrue:[
"Good, a JavaVM understands new style native selectors"
^newStyleSel
].
oldStyleSel := ('_' , (javaClass lastName copyReplaceAll:$$ with:$_) , '_' , nm , ':') asSymbol.
(JavaVM natives canUnderstand: oldStyleSel) ifTrue:[
"Convert method on the fly only if Im Jan Vrany
(to avoid confusion of other developers :-)"
OperatingSystem getLoginName = 'jv' ifTrue:[
"OK, old style method has not yet been converted to a newstyle one.
Converts old-style method to a new-style one"
self compileNativeImplementation: newStyleSel dispatchingTo: oldStyleSel.
^newStyleSel
] ifFalse:[
^oldStyleSel
]
].
self compileNativeImplementationStub: newStyleSel.
^newStyleSel
"Created: / 30-04-2011 / 23:50:29 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 16-01-2013 / 21:25:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaNativeMethod methodsFor:'vm support'!
nativeMethodInvokation
"Called by the VM when a native method is
to be executed - old (slow) implementation"
^self nativeMethodInvokation: thisContext sender.
"
JavaNativeMethod flushAllCachedNativeMethods"
"Modified: / 27-01-2000 / 13:34:53 / cg"
"Modified: / 03-11-2011 / 10:47:48 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
"Modified: / 27-10-2012 / 15:15:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!
nativeMethodInvokation: context
"Called by the VM when a native method is
to be executed.
'context' is the context of being-invoked native method"
| sel mthd sender |
nCalls := (nCalls ? 0) + 1.
(mthd := nativeImplementation) isNil ifTrue: [
sel := self searchNativeImplementation.
mthd := (JavaVM natives class compiledMethodAt: sel).
(mthd isNil or: [ mthd isLazyMethod ]) ifTrue: [
sender := context.
sender sender selector == #noByteCode ifTrue: [
sender := sender sender.
sender := sender sender.
sender := sender sender.
].
^ JavaVM natives perform: sel with: sender.
].
CacheNativeImplementation ifTrue: [ nativeImplementation := mthd. ]
].
Verbose ifTrue: [Logger log: 'Native method invokation: ' , sel severity: #debug facility: #JVM].
^ mthd
valueWithReceiver: JavaVM natives
arguments: (Array with: context)
selector: selector
search: JavaVM natives class
sender: nil
"
JavaNativeMethod flushAllCachedNativeMethods"
"Created: / 27-10-2012 / 15:13:35 / Jan Vrany <jan.vrany@fit.cvut.cz>"
"Modified: / 16-01-2013 / 20:03:41 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !
!JavaNativeMethod class methodsFor:'documentation'!
version
^ '$Header$'
!
version_HG
^ '$Changeset: <not expanded> $'
!
version_SVN
^ '§Id§'
! !
JavaNativeMethod initialize!