Initial revision

diff --git a/v7/src/microcode/sgx11.c b/v7/src/microcode/sgx11.c
new file mode 100644 (file)
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+++ b/v7/src/microcode/sgx11.c
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+/* -*-C-*-
+
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/Attic/sgx11.c,v 1.1 1989/02/24 09:24:50 cph Rel $
+
+Copyright (c) 1989 Massachusetts Institute of Technology
+
+This material was developed by the Scheme project at the Massachusetts
+Institute of Technology, Department of Electrical Engineering and
+Computer Science.  Permission to copy this software, to redistribute
+it, and to use it for any purpose is granted, subject to the following
+restrictions and understandings.
+
+1. Any copy made of this software must include this copyright notice
+in full.
+
+2. Users of this software agree to make their best efforts (a) to
+return to the MIT Scheme project any improvements or extensions that
+they make, so that these may be included in future releases; and (b)
+to inform MIT of noteworthy uses of this software.
+
+3. All materials developed as a consequence of the use of this
+software shall duly acknowledge such use, in accordance with the usual
+standards of acknowledging credit in academic research.
+
+4. MIT has made no warrantee or representation that the operation of
+this software will be error-free, and MIT is under no obligation to
+provide any services, by way of maintenance, update, or otherwise.
+
+5. In conjunction with products arising from the use of this material,
+there shall be no use of the name of the Massachusetts Institute of
+Technology nor of any adaptation thereof in any advertising,
+promotional, or sales literature without prior written consent from
+MIT in each case. */
+
+/* Simple X11 graphics for HP 9000 series 300 machines. */
+
+#include <X11/Xlib.h>
+#include "scheme.h"
+#include "prims.h"
+#include "Sgraph.h"
+\f
+static int
+x_io_error_handler (display)
+     Display * display;
+{
+  fprintf (stderr, "\nX IO Error\n");
+  error_external_return ();
+}
+
+static int
+x_error_handler (display, error_event)
+     Display * display;
+     XErrorEvent * error_event;
+{
+  char buffer [2048];
+
+  XGetErrorText (display, (error_event -> error_code),
+                (& buffer), (sizeof (buffer)));
+  fprintf (stderr, "\nX Error: %s\n", buffer);
+  fprintf (stderr, "         Request code: %d\n",
+          (error_event -> request_code));
+  fprintf (stderr, "         Error serial: %x\n", (error_event -> serial));
+  error_external_return ();
+}
+
+DEFINE_PRIMITIVE ("X-GRAPHICS-DISPLAY-NAME", Prim_x_graphics_display_name, 1, 1, 0)
+{
+  PRIMITIVE_HEADER (1);
+
+  PRIMITIVE_RETURN
+    (C_String_To_Scheme_String
+     (XDisplayName (((ARG_REF (1)) == SHARP_F) ? NULL : (STRING_ARG (1)))));
+}
+
+DEFINE_PRIMITIVE ("X-GRAPHICS-GRAB-ERROR-HANDLERS", Prim_x_graphics_grab_error_handlers, 0, 0, 0)
+{
+  PRIMITIVE_HEADER (0);
+
+  XSetErrorHandler (x_error_handler);
+  XSetIOErrorHandler (x_io_error_handler);
+  PRIMITIVE_RETURN (SHARP_F);
+}