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LibFFIWorkerTask.class.st
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LibFFIWorkerTask.class.st
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Class {
#name : #LibFFIWorkerTask,
#superclass : #VMStructType,
#instVars : [
'address',
'anExternalFunction',
'cif',
'parametersAddress',
'returnHolderAddress',
'semaphoreIndex'
],
#category : #'VMMaker-FFI'
}
{ #category : #translation }
LibFFIWorkerTask class >> filteredInstVarNames [
"Eliminate the obvious simulation-only inst vars"
^ self allInstVarNames copyWithoutAll: #(address)
]
{ #category : #translation }
LibFFIWorkerTask class >> instVarNamesAndTypesForTranslationDo: aBinaryBlock [
self filteredInstVarNames do:
[:ivn|
aBinaryBlock
value: ivn
value: (ivn caseOf: {
['anExternalFunction'] -> [#'void *'].
['cif'] -> [#'ffi_cif *'].
['parametersAddress'] -> [#'void *'].
['returnHolderAddress'] -> [#'void *'].
['semaphoreIndex'] -> [#'int'].
} otherwise: [ self halt ])]
]
{ #category : #translation }
LibFFIWorkerTask class >> printTypedefOn: aStream [
"This is already defined in workerTask.h"
]
{ #category : #translation }
LibFFIWorkerTask class >> structTypeName [
^ 'WorkerTask'
]
{ #category : #accessing }
LibFFIWorkerTask >> anExternalFunction [
^ anExternalFunction
]
{ #category : #accessing }
LibFFIWorkerTask >> anExternalFunction: anObject [
anExternalFunction := anObject
]
{ #category : #accessing }
LibFFIWorkerTask >> asInteger [
^ address ifNil: [
address := (Random new nextInteger: 1024) + 16rFF1FF ]
]
{ #category : #'memory access' }
LibFFIWorkerTask >> cCoerce: value to: cTypeString [
<doNotGenerate>
^value
ifNil: [value]
ifNotNil: [value coerceTo: cTypeString sim: cif interpreter]
]
{ #category : #accessing }
LibFFIWorkerTask >> cif [
^ cif
]
{ #category : #accessing }
LibFFIWorkerTask >> cif: anObject [
cif := anObject
]
{ #category : #operations }
LibFFIWorkerTask >> doFreeFromTask: anAddress [
<cmacro: '(aTask,anAddress) (free(anAddress))'>
]
{ #category : #operations }
LibFFIWorkerTask >> freeTask [
self parametersAddress
ifNotNil: [ :anAddress | | parameters |
parameters := self cCoerce: anAddress to: #'void **'.
0 to: self cif nargs - 1 do: [ :i |
(parameters at: i) ifNotNil: [ :anParameterAddress | self doFreeFromTask: anParameterAddress ] ].
self doFreeFromTask: parameters ].
self returnHolderAddress
ifNotNil: [ :anAddress | self doFreeFromTask: anAddress ].
self doFreeFromTask: self asInteger
]
{ #category : #accessing }
LibFFIWorkerTask >> parametersAddress [
^ parametersAddress
]
{ #category : #accessing }
LibFFIWorkerTask >> parametersAddress: anObject [
parametersAddress := anObject
]
{ #category : #accessing }
LibFFIWorkerTask >> returnHolderAddress [
^ returnHolderAddress
]
{ #category : #accessing }
LibFFIWorkerTask >> returnHolderAddress: anObject [
returnHolderAddress := anObject
]
{ #category : #accessing }
LibFFIWorkerTask >> semaphoreIndex [
^ semaphoreIndex
]
{ #category : #accessing }
LibFFIWorkerTask >> semaphoreIndex: anObject [
semaphoreIndex := anObject
]