/usr/share/gnu-smalltalk/kernel/CFuncs.st is in gnu-smalltalk-common 3.2.4-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 | "======================================================================
|
| CFunctionDescriptor Method Definitions
|
|
======================================================================"
"======================================================================
|
| Copyright 1988,92,94,95,99,2000,2001,2002,2003,2005,2008
| Free Software Foundation, Inc.
| Written by Steve Byrne.
|
| This file is part of the GNU Smalltalk class library.
|
| The GNU Smalltalk class library is free software; you can redistribute it
| and/or modify it under the terms of the GNU Lesser General Public License
| as published by the Free Software Foundation; either version 2.1, or (at
| your option) any later version.
|
| The GNU Smalltalk class library is distributed in the hope that it will be
| useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
| General Public License for more details.
|
| You should have received a copy of the GNU Lesser General Public License
| along with the GNU Smalltalk class library; see the file COPYING.LIB.
| If not, write to the Free Software Foundation, 59 Temple Place - Suite
| 330, Boston, MA 02110-1301, USA.
|
======================================================================"
CCallable subclass: CFunctionDescriptor [
| cFunctionName |
<shape: #inherit>
<category: 'Language-C interface'>
<comment: 'I am not part of the Smalltalk definition. My instances contain information
about C functions that can be called from within Smalltalk, such as number
and type of parameters. This information is used by the C callout mechanism
to perform the actual call-out to C routines.'>
CFunctionDescriptor class >> for: funcName returning: returnTypeSymbol withArgs: argsArray [
"Answer a CFunctionDescriptor with the given function name, return type
and arguments. funcName must be a String."
<category: 'instance creation'>
^(super for: nil returning: returnTypeSymbol withArgs: argsArray)
name: funcName;
yourself
]
CFunctionDescriptor class >> addressOf: function [
"Answer the address (CObject) of the function which is registered (on
the C side) with the given name, or zero if no such a function is
registered."
<category: 'testing'>
<primitive: VMpr_CFuncDescriptor_addressOf>
^CObject new
]
CFunctionDescriptor class >> isFunction: function [
"Answer whether a function is registered (on the C side) with the
given name."
<category: 'testing'>
^(self addressOf: function) address ~= 0
]
name [
"Answer the name of the function (on the C side) represented by the
receiver"
<category: 'accessing'>
^cFunctionName
]
name: aString [
"Set the name of the function (on the C side) represented by the
receiver"
<category: 'accessing'>
cFunctionName := aString
]
link [
"Make the address of the function point to the registered address."
<category: 'restoring'>
self address: (CFunctionDescriptor addressOf: self name) address.
]
printOn: aStream [
"Print a representation of the receiver onto aStream"
<category: 'printing'>
aStream
print: self class;
nextPut: $(.
self name isNil ifFalse: [ aStream nextPutAll: self name ].
self address = 0 ifFalse: [
self name isNil ifFalse: [ aStream nextPutAll: ' @ ' ].
aStream nextPutAll: (self address printStringRadix: 16)
].
aStream nextPut: $)
]
]
SystemDictionary extend [
system: aString [
<category: 'c call-outs'>
<cCall: 'system' returning: #int args: #(#string)>
]
getenv: aString [
<category: 'c call-outs'>
<cCall: 'getenv' returning: #string args: #(#string)>
]
putenv: aString [
<category: 'c call-outs'>
<cCall: 'putenv' returning: #int args: #(#string)>
]
getArgc [
<category: 'c call-outs'>
<cCall: 'getArgc' returning: #int args: #()>
]
getArgv: index [
<category: 'c call-outs'>
<cCall: 'getArgv' returning: #string args: #(#int)>
]
]
|