author | Claus Gittinger <cg@exept.de> |
Thu, 25 Apr 1996 18:02:18 +0200 | |
changeset 1286 | 4270a0b4917d |
parent 1267 | e285a3a94d9e |
child 1317 | cc737e0fdf48 |
permissions | -rw-r--r-- |
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1 |
" |
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2 |
COPYRIGHT (c) 1994 by Claus Gittinger |
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3 |
All Rights Reserved |
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4 |
|
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5 |
This software is furnished under a license and may be used |
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6 |
only in accordance with the terms of that license and with the |
76a83f34c26a
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7 |
inclusion of the above copyright notice. This software may not |
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8 |
be provided or otherwise made available to, or used by, any |
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9 |
other person. No title to or ownership of the software is |
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10 |
hereby transferred. |
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" |
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|
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ExecutableFunction subclass:#ExternalFunction |
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instanceVariableNames:'' |
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subclasses of fixed classes are still possible
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classVariableNames:'InvalidCustomFunctionSignal' |
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poolDictionaries:'' |
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17 |
category:'System-Support' |
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! |
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|
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!ExternalFunction primitiveFunctions! |
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%{ |
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|
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/* |
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* given an ST-object, make something useful for C |
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* cast it to an int |
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* |
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* CAVEAT: floats are not allowed. |
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*/ |
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int |
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convertST_to_C(stObj) |
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OBJ stObj; |
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{ |
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if (__isString(stObj) || __isSymbol(stObj)) { |
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return (int)(__stringVal(stObj)); |
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} |
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if (__isSmallInteger(stObj)) { |
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return (int)(__intVal(stObj)); |
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} |
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if (__isCharacter(stObj)) { |
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return (int)(__intVal(__characterVal(stObj))); |
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} |
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if (stObj == true) { |
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return 1; |
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} |
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if (stObj == false) { |
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46 |
return 0; |
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} |
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if (stObj == nil) { |
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return 0; |
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} |
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return 0; |
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} |
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|
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%} |
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! ! |
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56 |
|
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!ExternalFunction class methodsFor:'documentation'! |
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|
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59 |
copyright |
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" |
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61 |
COPYRIGHT (c) 1994 by Claus Gittinger |
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All Rights Reserved |
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63 |
|
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64 |
This software is furnished under a license and may be used |
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65 |
only in accordance with the terms of that license and with the |
76a83f34c26a
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66 |
inclusion of the above copyright notice. This software may not |
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67 |
be provided or otherwise made available to, or used by, any |
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68 |
other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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|
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documentation |
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" |
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75 |
Instances of this class represent external (non-Smalltalk) functions. |
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|
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Also, the class provides access to custom functions |
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These custom functions enable you to call c functions |
79 |
even if no stc compiler is available |
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(they are kind of what user-primitives are in ST-80). |
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You can register your own custom C-functions in a private main.c |
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and relink ST/X from the binaries. |
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(see the demo functions provided in main.c). |
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84 |
|
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If you have the stc compiler, we recommend using inline primitive |
86 |
code: its much easier to enter, compile, debug and maintain. |
|
87 |
(especially, to maintain, since the primitive code is contained |
|
88 |
in the classes source/object file - while custom functions are |
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89 |
external to the classLibraries). |
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90 |
|
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In the furture, non custom externalFunctions will be created when |
92 |
a non-ST shared library is loaded, and the contained C Functions will |
|
93 |
be callable via those handles. |
|
94 |
- however, this is still in construction and NOT yet published for |
|
95 |
general use. For now, either use inline C-code, or use the customFunction call |
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96 |
mechanism. |
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[author:] |
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99 |
Claus Gittinger |
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" |
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! ! |
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102 |
|
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103 |
!ExternalFunction class methodsFor:'initialization'! |
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|
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105 |
initialize |
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"create signals" |
107 |
||
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108 |
InvalidCustomFunctionSignal isNil ifTrue:[ |
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InvalidCustomFunctionSignal := ExecutionErrorSignal newSignalMayProceed:true. |
110 |
InvalidCustomFunctionSignal nameClass:self message:#invalidCustomFunctionSignal. |
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111 |
InvalidCustomFunctionSignal notifierString:'attempt to execute unknown custom function'. |
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112 |
] |
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|
114 |
"Modified: 22.4.1996 / 18:08:55 / cg" |
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! ! |
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116 |
|
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117 |
!ExternalFunction class methodsFor:'Signal constants'! |
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118 |
|
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119 |
invalidCustomFunctionSignal |
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"return the signal raised when a non existent custom function is |
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121 |
called for." |
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122 |
|
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123 |
^ InvalidCustomFunctionSignal |
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124 |
! ! |
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125 |
|
1257 | 126 |
!ExternalFunction class methodsFor:'calling custom functions'! |
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127 |
|
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128 |
callCustomFunction:nr |
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"call the custom function #nr without arguments" |
130 |
||
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^ self callCustomFunction:nr withArguments:#() |
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|
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133 |
" |
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134 |
ExternalFunction callCustomFunction:0 |
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135 |
ExternalFunction callCustomFunction:999 |
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136 |
" |
1257 | 137 |
|
138 |
"Modified: 22.4.1996 / 18:06:52 / cg" |
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139 |
! |
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140 |
|
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141 |
callCustomFunction:nr with:arg |
1257 | 142 |
"call the custom function #nr with a single argument" |
143 |
||
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^ self callCustomFunction:nr withArguments:(Array with:arg) |
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145 |
|
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146 |
" |
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147 |
ExternalFunction callCustomFunction:1 with:'hello world' |
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148 |
" |
1257 | 149 |
|
150 |
"Modified: 22.4.1996 / 18:07:03 / cg" |
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parents:
diff
changeset
|
151 |
! |
76a83f34c26a
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diff
changeset
|
152 |
|
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|
153 |
callCustomFunction:nr with:arg1 with:arg2 |
1257 | 154 |
"call the custom function #nr with two arguments" |
155 |
||
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|
156 |
^ self callCustomFunction:nr withArguments:(Array with:arg1 with:arg2) |
76a83f34c26a
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|
157 |
|
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|
158 |
" |
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|
159 |
ExternalFunction callCustomFunction:2 with:(Float pi) with:1.0 |
76a83f34c26a
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|
160 |
" |
1257 | 161 |
|
162 |
"Modified: 22.4.1996 / 18:07:11 / cg" |
|
848
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changeset
|
163 |
! |
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diff
changeset
|
164 |
|
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|
165 |
callCustomFunction:nr with:arg1 with:arg2 with:arg3 |
1257 | 166 |
"call the custom function #nr with three arguments" |
167 |
||
848
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|
168 |
^ self callCustomFunction:nr |
1257 | 169 |
withArguments:(Array with:arg1 with:arg2 with:arg3) |
170 |
||
171 |
"Modified: 22.4.1996 / 18:07:18 / cg" |
|
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changeset
|
172 |
! |
76a83f34c26a
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changeset
|
173 |
|
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|
174 |
callCustomFunction:nr withArguments:argArray |
1257 | 175 |
"call the custom function #nr with arguments from argArray" |
176 |
||
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|
177 |
|retVal called| |
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|
178 |
|
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|
179 |
%{ |
917 | 180 |
#ifndef __stxNCustomFunctions__ |
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181 |
extern int __stxNCustomFunctions__; |
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182 |
extern CUSTOMFUNCTION __stxCustomFunctions__[]; |
917 | 183 |
#endif |
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|
184 |
int (* func)(); |
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|
185 |
|
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|
186 |
called = false; |
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|
187 |
if (__isSmallInteger(nr) && __isArray(argArray)) { |
1257 | 188 |
int nargs = __arraySize(argArray); |
189 |
int functionNr; |
|
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|
190 |
|
1257 | 191 |
functionNr = __intVal(nr); |
192 |
if ((functionNr >= 0) && (functionNr < __stxNCustomFunctions__)) { |
|
193 |
/* |
|
194 |
* now, call the function; passing nargs and arg-vector |
|
195 |
*/ |
|
196 |
func = __stxCustomFunctions__[functionNr].func; |
|
197 |
if (func) { |
|
198 |
int ok; |
|
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|
199 |
|
1257 | 200 |
retVal = self; |
201 |
ok = (*func)(nargs, &retVal, __ArrayInstPtr(argArray)->a_element); |
|
202 |
if (ok) { |
|
203 |
RETURN (retVal); |
|
204 |
} |
|
205 |
called = true; |
|
206 |
} |
|
207 |
} |
|
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|
208 |
} |
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|
209 |
%}. |
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|
210 |
called ifTrue:[ |
1257 | 211 |
" |
212 |
the customFunction returned 0 (failure) |
|
213 |
" |
|
214 |
^ self primitiveFailed |
|
848
76a83f34c26a
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changeset
|
215 |
]. |
76a83f34c26a
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changeset
|
216 |
|
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|
217 |
" |
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changeset
|
218 |
an invalid customFunction-nr was given, |
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changeset
|
219 |
" |
76a83f34c26a
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changeset
|
220 |
InvalidCustomFunctionSignal raise |
76a83f34c26a
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changeset
|
221 |
|
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changeset
|
222 |
|
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changeset
|
223 |
" |
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|
224 |
ExternalFunction callCustomFunction:2 withArguments:#(1.0 1.0) |
76a83f34c26a
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|
225 |
ExternalFunction callCustomFunction:999 withArguments:#(1.0 1.0) |
76a83f34c26a
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changeset
|
226 |
" |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
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diff
changeset
|
227 |
! |
76a83f34c26a
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parents:
diff
changeset
|
228 |
|
76a83f34c26a
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|
229 |
callCustomFunctionNamed:name withArguments:argArray |
1257 | 230 |
"call a custom function by name with arguments from argArray" |
231 |
||
848
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|
232 |
|index| |
76a83f34c26a
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diff
changeset
|
233 |
|
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parents:
diff
changeset
|
234 |
index := self indexOfCustomFunctionNamed:name. |
76a83f34c26a
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|
235 |
index notNil ifTrue:[ |
1257 | 236 |
^ self callCustomFunction:index withArguments:argArray |
848
76a83f34c26a
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diff
changeset
|
237 |
]. |
76a83f34c26a
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parents:
diff
changeset
|
238 |
" |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
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parents:
diff
changeset
|
239 |
no such function exists |
76a83f34c26a
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parents:
diff
changeset
|
240 |
" |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
241 |
InvalidCustomFunctionSignal raise |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
242 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
243 |
" |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
244 |
ExternalFunction callCustomFunctionNamed:'demoFunction0' |
1257 | 245 |
withArguments:#() |
848
76a83f34c26a
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parents:
diff
changeset
|
246 |
" |
1257 | 247 |
|
248 |
"Modified: 22.4.1996 / 18:08:09 / cg" |
|
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
249 |
! |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
250 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
251 |
indexOfCustomFunctionNamed:functionName |
1257 | 252 |
"return the index of a named custom function" |
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
253 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
254 |
%{ /* NOCONTEXT */ |
917 | 255 |
#ifndef __stxNCustomFunctions__ |
856
d2c9f9ecedcf
renamed customFunction-globals
Claus Gittinger <cg@exept.de>
parents:
848
diff
changeset
|
256 |
extern int __stxNCustomFunctions__; |
d2c9f9ecedcf
renamed customFunction-globals
Claus Gittinger <cg@exept.de>
parents:
848
diff
changeset
|
257 |
extern CUSTOMFUNCTION __stxCustomFunctions__[]; |
917 | 258 |
#endif |
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
259 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
260 |
if (__isString(functionName)) { |
1257 | 261 |
char *nm; |
262 |
int i; |
|
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
263 |
|
1257 | 264 |
nm = __stringVal(functionName); |
265 |
for (i=0; i < __stxNCustomFunctions__; i++) { |
|
266 |
if (strcmp(__stxCustomFunctions__[i].name, nm) == 0) { |
|
267 |
RETURN (__MKSMALLINT(i)); |
|
268 |
} |
|
269 |
} |
|
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
270 |
} |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
271 |
%}. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
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parents:
diff
changeset
|
272 |
^ nil |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
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parents:
diff
changeset
|
273 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
274 |
" |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
275 |
ExternalFunction indexOfCustomFunctionNamed:'demoFunction0' |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
276 |
ExternalFunction indexOfCustomFunctionNamed:'fooBar' |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
277 |
" |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
278 |
! ! |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
279 |
|
1184
e15a6702c812
subclasses of fixed classes are still possible
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
280 |
!ExternalFunction class methodsFor:'queries'! |
e15a6702c812
subclasses of fixed classes are still possible
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
281 |
|
e15a6702c812
subclasses of fixed classes are still possible
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
282 |
isBuiltInClass |
1267 | 283 |
"return true if this class is known by the run-time-system. |
284 |
Here, true is returned for myself, false for subclasses." |
|
1184
e15a6702c812
subclasses of fixed classes are still possible
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
285 |
|
e15a6702c812
subclasses of fixed classes are still possible
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
286 |
^ self == ExternalFunction |
e15a6702c812
subclasses of fixed classes are still possible
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
287 |
|
e15a6702c812
subclasses of fixed classes are still possible
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
288 |
"Created: 16.4.1996 / 11:24:50 / cg" |
1267 | 289 |
"Modified: 23.4.1996 / 15:58:55 / cg" |
1184
e15a6702c812
subclasses of fixed classes are still possible
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
290 |
! ! |
e15a6702c812
subclasses of fixed classes are still possible
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
291 |
|
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
292 |
!ExternalFunction methodsFor:'function calling'! |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
293 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
294 |
call |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
295 |
"call the underlying C function, passing no argument. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
296 |
The return value is interpreted as an integer |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
297 |
(and must be converted to an externalBytes object, |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
298 |
if it is a pointer to something). |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
299 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
300 |
DANGER alert: This is an unprotected low-level entry. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
301 |
Not for normal application usage. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
302 |
" |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
303 |
%{ |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
304 |
INTFUNC func; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
305 |
int retVal; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
306 |
|
1133 | 307 |
func = (INTFUNC) __INST(code_); |
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
308 |
retVal = (*func)(); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
309 |
RETURN (__MKINT(retVal)); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
310 |
%} |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
311 |
! |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
312 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
313 |
callWith:arg |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
314 |
"call the underlying C function, passing a single argument. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
315 |
The argument arg is converted to a corresponding C data type, |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
316 |
as defined in the convertST_to_C() function. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
317 |
The return value is interpreted as an integer |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
318 |
(and must be converted to an externalBytes object, |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
319 |
if it is a pointer to something). |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
320 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
321 |
DANGER alert: This is an unprotected low-level entry. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
322 |
Not for normal application usage. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
323 |
" |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
324 |
%{ |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
325 |
INTFUNC func; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
326 |
int retVal; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
327 |
|
1133 | 328 |
func = (INTFUNC) __INST(code_); |
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
329 |
retVal = (*func)(convertST_to_C(arg)); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
330 |
RETURN (__MKINT(retVal)); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
331 |
%} |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
332 |
! |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
333 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
334 |
callWithArguments:argArray |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
335 |
"call the underlying C function, passing up to 10 arguments. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
336 |
The arguments are converted to a corresponding C data type, |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
337 |
as defined in the convertST_to_C() function. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
338 |
The return value is interpreted as an integer |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
339 |
(and must be converted to an externalBytes object, |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
340 |
if it is a pointer to something). |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
341 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
342 |
DANGER alert: This is an unprotected low-level entry. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
343 |
Not for normal application usage. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
344 |
" |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
345 |
%{ |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
346 |
INTFUNC func; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
347 |
# define NUMARGS 10 |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
348 |
int args[NUMARGS]; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
349 |
int retVal; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
350 |
OBJ *ap; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
351 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
352 |
if (__isArray(argArray)) { |
1133 | 353 |
int n = __arraySize(argArray); |
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
354 |
int i; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
355 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
356 |
if (n <= 10) { |
1133 | 357 |
ap = __ArrayInstPtr(argArray)->a_element; |
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
358 |
for (i=0; i<NUMARGS; i++) { |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
359 |
args[i] = convertST_to_C(*ap++); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
360 |
} |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
361 |
} |
1133 | 362 |
func = (INTFUNC) __INST(code_); |
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
363 |
switch (n) { |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
364 |
case 0: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
365 |
retVal = (*func)(); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
366 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
367 |
case 1: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
368 |
retVal = (*func)(args[0]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
369 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
370 |
case 2: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
371 |
retVal = (*func)(args[0], args[1]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
372 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
373 |
case 3: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
374 |
retVal = (*func)(args[0], args[1], args[2]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
375 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
376 |
case 4: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
377 |
retVal = (*func)(args[0], args[1], args[2], args[3]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
378 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
379 |
case 5: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
380 |
retVal = (*func)(args[0], args[1], args[2], args[3], |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
381 |
args[4]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
382 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
383 |
case 6: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
384 |
retVal = (*func)(args[0], args[1], args[2], args[3], |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
385 |
args[4], args[5]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
386 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
387 |
case 7: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
388 |
retVal = (*func)(args[0], args[1], args[2], args[3], |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
389 |
args[4], args[5], args[6]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
390 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
391 |
case 8: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
392 |
retVal = (*func)(args[0], args[1], args[2], args[3], |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
393 |
args[4], args[5], args[6], args[7]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
394 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
395 |
case 9: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
396 |
retVal = (*func)(args[0], args[1], args[2], args[3], |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
397 |
args[4], args[5], args[6], args[7], |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
398 |
args[8]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
399 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
400 |
case 10: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
401 |
retVal = (*func)(args[0], args[1], args[2], args[3], |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
402 |
args[4], args[5], args[6], args[7], |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
403 |
args[8], args[9]); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
404 |
break; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
405 |
default: |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
406 |
goto err; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
407 |
} |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
408 |
RETURN (__MKINT(retVal)); |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
409 |
} |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
410 |
err: ; |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
411 |
%}. |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
412 |
self primitiveFailed |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
413 |
! ! |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
414 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
415 |
!ExternalFunction class methodsFor:'documentation'! |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
416 |
|
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
417 |
version |
1286 | 418 |
^ '$Header: /cvs/stx/stx/libbasic/ExternalFunction.st,v 1.8 1996-04-25 15:59:43 cg Exp $' |
848
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
419 |
! ! |
76a83f34c26a
moved ExtBytes & ExtFunc from libbasic2
Claus Gittinger <cg@exept.de>
parents:
diff
changeset
|
420 |
ExternalFunction initialize! |