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diff --git a/lnet/ulnds/dispatch.h b/lnet/ulnds/dispatch.h
new file mode 100644
index 0000000..34dd070
--- /dev/null
+++ b/lnet/ulnds/dispatch.h
@@ -0,0 +1,39 @@
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ *  Copyright (c) 2002 Cray Inc.
+ *  Copyright (c) 2002 Eric Hoffman
+ *
+ *   This file is part of Portals, http://www.sf.net/projects/sandiaportals/
+ */
+
+/* this file is only called dispatch.h to prevent it
+   from colliding with /usr/include/sys/select.h */
+
+typedef struct io_handler *io_handler;
+
+struct io_handler{
+  io_handler *last;
+  io_handler next;
+  int fd;
+  int type;
+  int (*function)(void *);
+  void *argument;
+  int disabled;
+};
+
+
+#define READ_HANDLER 1
+#define WRITE_HANDLER 2
+#define EXCEPTION_HANDLER 4
+#define ALL_HANDLER (READ_HANDLER | WRITE_HANDLER | EXCEPTION_HANDLER)
+
+io_handler register_io_handler(int fd,
+                               int type,
+                               int (*function)(void *),
+                               void *arg);
+
+void remove_io_handler (io_handler i);
+void init_unix_timer(void);
+void select_timer_block(when until);
+when now(void);