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LibFFI.class.st
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LibFFI.class.st
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Class {
#name : #LibFFI,
#superclass : #VMClass,
#instVars : [
'nextAddress',
'cifs',
'functions',
'interpreter',
'testWorker'
],
#pools : [
'LibFFIConstants'
],
#category : #'VMMaker-FFI'
}
{ #category : #translation }
LibFFI class >> ancilliaryClasses [
^ { LibFFICIF. LibFFIType. LibFFIWorkerTask }
]
{ #category : #'type constants' }
LibFFI >> char [
<doNotGenerate>
^ self uint8
]
{ #category : #'call simulations' }
LibFFI >> cifAtAddress: anInteger [
<doNotGenerate>
^ cifs at: anInteger
]
{ #category : #'type constants' }
LibFFI >> double [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_DOUBLE size: 8 on: self.
]
{ #category : #'call simulations' }
LibFFI >> ffiCall: aCif _: externalFunctionAddress _: returnHolder _: parameters [
<doNotGenerate>
| retValue |
retValue := (functions at: externalFunctionAddress)
valueWithArguments: (aCif parametersToSmalltalk: parameters).
^ aCif returnType fromSmalltalk: retValue putInto: returnHolder
]
{ #category : #'type constants' }
LibFFI >> float [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_FLOAT size: 4 on: self.
]
{ #category : #'instance creation' }
LibFFI >> initialize [
super initialize.
cifs := Dictionary new.
functions := Dictionary new.
nextAddress := 1.
]
{ #category : #accessing }
LibFFI >> interpreter [
<doNotGenerate>
^ interpreter
]
{ #category : #accessing }
LibFFI >> interpreter: anInterpreter [
<doNotGenerate>
interpreter := anInterpreter
]
{ #category : #'instance creation' }
LibFFI >> newCif [
<doNotGenerate>
| cif |
cif := LibFFICIF new.
cif libFFI: self.
cif address: nextAddress.
cifs at: nextAddress put: cif.
nextAddress := nextAddress + 1.
^ cif
]
{ #category : #'type constants' }
LibFFI >> pointer [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_POINTER size: interpreter objectMemory wordSize on: self
]
{ #category : #'registering functions' }
LibFFI >> registerFunction: aBlockClosure [
<doNotGenerate>
| functionAddress |
functionAddress := nextAddress.
functions at: nextAddress put: aBlockClosure.
nextAddress := nextAddress + 1.
^ functionAddress
]
{ #category : #'type constants' }
LibFFI >> sint16 [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_SINT16 size: 2 on: self
]
{ #category : #'type constants' }
LibFFI >> sint32 [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_SINT32 size: 4 on: self
]
{ #category : #'type constants' }
LibFFI >> sint64 [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_SINT64 size: 8 on: self
]
{ #category : #'type constants' }
LibFFI >> sint8 [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_SINT8 size: 1 on: self
]
{ #category : #'type constants' }
LibFFI >> structWith: anArrayOfTypes [
| size |
size := anArrayOfTypes sumNumbers: [ :e | e size ].
^ (LibFFIType type: FFI_TYPE_STRUCT size: size on: self)
elements: anArrayOfTypes;
yourself
]
{ #category : #testing }
LibFFI >> testWorker [
<doNotGenerate>
^ testWorker ifNil: [ testWorker := LibFFITestWorker new ]
]
{ #category : #'type constants' }
LibFFI >> uint16 [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_UINT16 size: 2 on: self
]
{ #category : #'type constants' }
LibFFI >> uint32 [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_UINT32 size: 4 on: self
]
{ #category : #'type constants' }
LibFFI >> uint64 [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_UINT64 size: 8 on: self
]
{ #category : #'type constants' }
LibFFI >> uint8 [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_UINT8 size: 1 on: self
]
{ #category : #'type constants' }
LibFFI >> void [
<doNotGenerate>
^ LibFFIType type: FFI_TYPE_VOID size: 0 on: self
]