68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
/* function.c
|
|
*
|
|
* $Id$
|
|
*
|
|
* Copyright 1990, 1991, 1992, 1993, 1994, 1995, Oliver Laumann, Berlin
|
|
* Copyright 2002, 2003 Sam Hocevar <sam@zoy.org>, Paris
|
|
*
|
|
* This software was derived from Elk 1.2, which was Copyright 1987, 1988,
|
|
* 1989, Nixdorf Computer AG and TELES GmbH, Berlin (Elk 1.2 has been written
|
|
* by Oliver Laumann for TELES Telematic Services, Berlin, in a joint project
|
|
* between TELES and Nixdorf Microprocessor Engineering, Berlin).
|
|
*
|
|
* Oliver Laumann, TELES GmbH, Nixdorf Computer AG and Sam Hocevar, as co-
|
|
* owners or individual owners of copyright in this software, grant to any
|
|
* person or company a worldwide, royalty free, license to
|
|
*
|
|
* i) copy this software,
|
|
* ii) prepare derivative works based on this software,
|
|
* iii) distribute copies of this software or derivative works,
|
|
* iv) perform this software, or
|
|
* v) display this software,
|
|
*
|
|
* provided that this notice is not removed and that neither Oliver Laumann
|
|
* nor Teles nor Nixdorf are deemed to have made any representations as to
|
|
* the suitability of this software for any purpose nor are held responsible
|
|
* for any defects of this software.
|
|
*
|
|
* THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
|
|
*/
|
|
|
|
#include "xt.h"
|
|
|
|
static int max_functions = 512;
|
|
static Object Functions;
|
|
|
|
int Register_Function (Object x) {
|
|
register int i;
|
|
Object v;
|
|
GC_Node;
|
|
|
|
for (i = 0; i < max_functions; i++)
|
|
if (Nullp (VECTOR(Functions)->data[i])) break;
|
|
if (i == max_functions) {
|
|
max_functions *= 2;
|
|
GC_Link (x);
|
|
v = Make_Vector (max_functions, Null);
|
|
GC_Unlink;
|
|
memcpy ((char *)VECTOR(v)->data, (char *)VECTOR(Functions)->data,
|
|
i * sizeof (Object));
|
|
Functions = v;
|
|
}
|
|
VECTOR(Functions)->data[i] = x;
|
|
return i;
|
|
}
|
|
|
|
Object Get_Function (int i) {
|
|
return VECTOR(Functions)->data[i];
|
|
}
|
|
|
|
void Deregister_Function (int i) {
|
|
VECTOR(Functions)->data[i] = Null;
|
|
}
|
|
|
|
void elk_init_xt_function () {
|
|
Functions = Make_Vector (max_functions, Null);
|
|
Global_GC_Link (Functions);
|
|
}
|