Merged the get_read_fd and get_write_fd requests.

diff --git a/server/request.h b/server/request.h
index ec32edf..ef856f3 100644
--- a/server/request.h
+++ b/server/request.h
@@ -106,8 +106,7 @@
 DECL_HANDLER(open_semaphore);
 DECL_HANDLER(create_file);
 DECL_HANDLER(alloc_file_handle);
-DECL_HANDLER(get_read_fd);
-DECL_HANDLER(get_write_fd);
+DECL_HANDLER(get_handle_fd);
 DECL_HANDLER(set_file_pointer);
 DECL_HANDLER(truncate_file);
 DECL_HANDLER(set_file_time);
@@ -222,8 +221,7 @@
     (req_handler)req_open_semaphore,
     (req_handler)req_create_file,
     (req_handler)req_alloc_file_handle,
-    (req_handler)req_get_read_fd,
-    (req_handler)req_get_write_fd,
+    (req_handler)req_get_handle_fd,
     (req_handler)req_set_file_pointer,
     (req_handler)req_truncate_file,
     (req_handler)req_set_file_time,