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#include "xlib.h"
static Object V_X_Error_Handler, V_X_Fatal_Error_Handler;
/* Default error handlers of the Xlib */
extern int _XDefaultIOError();
extern int _XDefaultError();
static X_Fatal_Error (d) Display *d; {
Object args, fun;
GC_Node;
Reset_IO (0);
args = Make_Display (0, d);
GC_Link (args);
args = Cons (args, Null);
GC_Unlink;
fun = Var_Get (V_X_Fatal_Error_Handler);
if (TYPE(fun) == T_Compound)
(void)Funcall (fun, args, 0);
_XDefaultIOError (d);
exit (1); /* In case the default handler doesn't exit() */
/*NOTREACHED*/
}
static X_Error (d, ep) Display *d; XErrorEvent *ep; {
Object args, a, fun;
GC_Node;
Reset_IO (0);
args = Make_Unsigned_Long ((unsigned long)ep->resourceid);
GC_Link (args);
args = Cons (args, Null);
a = Make_Unsigned (ep->minor_code);
args = Cons (a, args);
a = Make_Unsigned (ep->request_code);
args = Cons (a, args);
a = Bits_To_Symbols ((unsigned long)ep->error_code, 0, Error_Syms);
if (Nullp (a))
a = Make_Unsigned (ep->error_code);
args = Cons (a, args);
a = Make_Unsigned_Long (ep->serial);
args = Cons (a, args);
a = Make_Display (0, ep->display);
args = Cons (a, args);
GC_Unlink;
fun = Var_Get (V_X_Error_Handler);
if (TYPE(fun) == T_Compound)
(void)Funcall (fun, args, 0);
else
_XDefaultError (d, ep);
}
static X_After_Function (d) Display *d; {
Object args;
GC_Node;
args = Make_Display (0, d);
GC_Link (args);
args = Cons (args, Null);
GC_Unlink;
(void)Funcall (DISPLAY(Car (args))->after, args, 0);
}
static Object P_Set_After_Function (d, f) Object d, f; {
Object old;
Check_Type (d, T_Display);
if (EQ(f, False)) {
(void)XSetAfterFunction (DISPLAY(d)->dpy, (int (*)())0);
} else {
Check_Procedure (f);
(void)XSetAfterFunction (DISPLAY(d)->dpy, X_After_Function);
}
old = DISPLAY(d)->after;
DISPLAY(d)->after = f;
return old;
}
static Object P_After_Function (d) Object d; {
Check_Type (d, T_Display);
return DISPLAY(d)->after;
}
elk_init_xlib_error () {
Define_Variable (&V_X_Fatal_Error_Handler, "x-fatal-error-handler", Null);
Define_Variable (&V_X_Error_Handler, "x-error-handler", Null);
(void)XSetIOErrorHandler (X_Fatal_Error);
(void)XSetErrorHandler (X_Error);
Define_Primitive (P_Set_After_Function, "set-after-function!", 2, 2, EVAL);
Define_Primitive (P_After_Function, "after-function", 1, 1, EVAL);
}
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