93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
#include "xlib.h"
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static s48_value V_X_Error_Handler, V_X_Fatal_Error_Handler;
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/* Default error handlers of the Xlib */
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extern int _XDefaultIOError();
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extern int _XDefaultError();
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static X_Fatal_Error (d) Display *d; {
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s48_value args, fun;
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S48_DECLARE_GC_PROTECT(1);
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Reset_IO (0);
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args = Make_Display (0, d);
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S48_GC_PROTECT_1 (args);
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args = s48_cons (args, S48_NULL);
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S48_GC_UNPROTECT;
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fun = Var_Get (V_X_Fatal_Error_Handler);
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if (TYPE(fun) == T_Compound)
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(void)Funcall (fun, args, 0);
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_XDefaultIOError (d);
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exit (1); /* In case the default handler doesn't exit() */
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/*NOTREACHED*/
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}
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static X_Error (d, ep) Display *d; XErrorEvent *ep; {
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s48_value args, a, fun;
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S48_DECLARE_GC_PROTECT(1);
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Reset_IO (0);
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args = s48_enter_integer ((unsigned long)ep->resourceid);
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S48_GC_PROTECT_1 (args);
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args = s48_cons (args, S48_NULL);
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a = s48_enter_integer (ep->minor_code);
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args = s48_cons (a, args);
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a = s48_enter_integer (ep->request_code);
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args = s48_cons (a, args);
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a = Bits_To_Symbols ((unsigned long)ep->error_code, 0, Error_Syms);
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if (S48_NULL_P (a))
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a = s48_enter_integer (ep->error_code);
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args = s48_cons (a, args);
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a = s48_enter_integer (ep->serial);
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args = s48_cons (a, args);
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a = Make_Display (0, ep->display);
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args = s48_cons (a, args);
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S48_GC_UNPROTECT;
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fun = Var_Get (V_X_Error_Handler);
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if (TYPE(fun) == T_Compound)
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(void)Funcall (fun, args, 0);
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else
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_XDefaultError (d, ep);
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}
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static X_After_Function (d) Display *d; {
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s48_value args;
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S48_DECLARE_GC_PROTECT(1);
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args = Make_Display (0, d);
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S48_GC_PROTECT_1 (args);
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args = s48_cons (args, S48_NULL);
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S48_GC_UNPROTECT;
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(void)Funcall (DISPLAY(S48_CAR (args))->after, args, 0);
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}
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static s48_value P_Set_After_Function (d, f) s48_value d, f; {
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s48_value old;
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Check_Type (d, T_Display);
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if (S48_EQ_P(f, S48_FALSE)) {
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(void)XSetAfterFunction (DISPLAY(d)->dpy, (int (*)())0);
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} else {
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Check_Procedure (f);
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(void)XSetAfterFunction (DISPLAY(d)->dpy, X_After_Function);
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}
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old = DISPLAY(d)->after;
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DISPLAY(d)->after = f;
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return old;
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}
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static s48_value P_After_Function (d) s48_value d; {
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Check_Type (d, T_Display);
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return DISPLAY(d)->after;
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}
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elk_init_xlib_error () {
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Define_Variable (&V_X_Fatal_Error_Handler, "x-fatal-error-handler", S48_NULL);
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Define_Variable (&V_X_Error_Handler, "x-error-handler", S48_NULL);
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(void)XSetIOErrorHandler (X_Fatal_Error);
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(void)XSetErrorHandler (X_Error);
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Define_Primitive (P_Set_After_Function, "set-after-function!", 2, 2, EVAL);
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Define_Primitive (P_After_Function, "after-function", 1, 1, EVAL);
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}
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