Initial revision

3 files changed, 108 insertions, 0 deletions

diff --git a/zwgc/xerror.c b/zwgc/xerror.c
new file mode 100644
index 0000000..974d2c8
--- /dev/null
+++ b/zwgc/xerror.c
@@ -0,0 +1,47 @@
+/* This file is part of the Project Athena Zephyr Notification System.
+ * It is one of the source files comprising zwgc, the Zephyr WindowGram
+ * client.
+ *
+ *      Created by:     Marc Horowitz <marc@athena.mit.edu>
+ *
+ *      $Source$
+ *      $Author$
+ *
+ *      Copyright (c) 1989 by the Massachusetts Institute of Technology.
+ *      For copying and distribution information, see the file
+ *      "mit-copyright.h".
+ */
+
+#if (!defined(lint) && !defined(SABER))
+static char rcsid_xerror_c[] = "$Id$";
+#endif
+
+#include <zephyr/mit-copyright.h>
+
+#include <X11/Xlib.h>
+#include <stdio.h>
+#include "mux.h"
+
+int xerror_happened;
+
+/*ARGSUSED*/
+static int xerrortrap(dpy,xerrev)
+     Display *dpy;
+     XErrorEvent *xerrev;
+{
+   xerror_happened = 1;
+}
+
+void begin_xerror_trap(dpy)
+     Display *dpy;
+{
+   xerror_happened = 0;
+   XSetErrorHandler(xerrortrap);
+}
+
+void end_xerror_trap(dpy)
+     Display *dpy;
+{
+   XSync(dpy,False);
+   XSetErrorHandler(NULL);
+}
diff --git a/zwgc/xerror.h b/zwgc/xerror.h
new file mode 100644
index 0000000..0e17936
--- /dev/null
+++ b/zwgc/xerror.h
@@ -0,0 +1,29 @@
+/* This file is part of the Project Athena Zephyr Notification System.
+ * It is one of the source files comprising zwgc, the Zephyr WindowGram
+ * client.
+ *
+ *      Created by:     Marc Horowitz <marc@athena.mit.edu>
+ *
+ *      $Source$
+ *      $Author$
+ *
+ *      Copyright (c) 1989 by the Massachusetts Institute of Technology.
+ *      For copying and distribution information, see the file
+ *      "mit-copyright.h".
+ */
+
+#ifndef _XERROR_H_
+#define _XERROR_H_
+
+#if (!defined(lint) && !defined(SABER))
+static char rcsid_xerror_h[] = "$Id$";
+#endif
+
+#include <zephyr/mit-copyright.h>
+
+extern int xerror_happened;
+
+void begin_xerror_trap();
+void end_xerror_trap();
+
+#endif
diff --git a/zwgc/xrevstack.h b/zwgc/xrevstack.h
new file mode 100644
index 0000000..24eaf77
--- /dev/null
+++ b/zwgc/xrevstack.h
@@ -0,0 +1,32 @@
+/* This file is part of the Project Athena Zephyr Notification System.
+ * It is one of the source files comprising zwgc, the Zephyr WindowGram
+ * client.
+ *
+ *      Created by:     Marc Horowitz <marc@athena.mit.edu>
+ *
+ *      $Source$
+ *      $Author$
+ *
+ *      Copyright (c) 1989 by the Massachusetts Institute of Technology.
+ *      For copying and distribution information, see the file
+ *      "mit-copyright.h".
+ */
+
+#ifndef _XREVSTACK_H_
+#define _XREVSTACK_H_
+
+#if (!defined(lint) && !defined(SABER))
+static char rcsid_xrevstack_h[] = "$Id$";
+#endif
+
+#include <zephyr/mit-copyright.h>
+
+extern x_gram *bottom_gram; /* for testing against NULL */
+extern int reverse_stack; /* is reverse stack on? */
+
+void add_to_bottom(/* x_gram */);
+void delete_from_list(/* x_gram */);
+void pull_to_top(/* x_gram */);
+void push_to_bottom(/* x_gram */);
+
+#endif /* _XREVSTACK_H_ */