* event-loop.c (create_file_handler): Don't do anything but

        update data when we are given a fd which we are already
        monitoring.

1 files changed, 37 insertions, 36 deletions

diff --git a/gdb/event-loop.c b/gdb/event-loop.c
index ea74419..4e42d7e 100644
--- a/gdb/event-loop.c
+++ b/gdb/event-loop.c
@@ -494,51 +494,52 @@ create_file_handler (int fd, int mask, handler_func * proc, gdb_client_data clie
       file_ptr->ready_mask = 0;
       file_ptr->next_file = gdb_notifier.first_file_handler;
       gdb_notifier.first_file_handler = file_ptr;
-    }
-  file_ptr->proc = proc;
-  file_ptr->client_data = client_data;
-  file_ptr->mask = mask;
 
-  if (use_poll)
-    {
+      if (use_poll)
+	{
 #ifdef HAVE_POLL
-      gdb_notifier.num_fds++;
-      if (gdb_notifier.poll_fds)
-	gdb_notifier.poll_fds =
-	  (struct pollfd *) xrealloc (gdb_notifier.poll_fds,
-				      (gdb_notifier.num_fds
-				       * sizeof (struct pollfd)));
-      else
-	gdb_notifier.poll_fds =
-	  (struct pollfd *) xmalloc (sizeof (struct pollfd));
-      (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->fd = fd;
-      (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->events = mask;
-      (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->revents = 0;
+	  gdb_notifier.num_fds++;
+	  if (gdb_notifier.poll_fds)
+	    gdb_notifier.poll_fds =
+	      (struct pollfd *) xrealloc (gdb_notifier.poll_fds,
+					  (gdb_notifier.num_fds
+					   * sizeof (struct pollfd)));
+	  else
+	    gdb_notifier.poll_fds =
+	      (struct pollfd *) xmalloc (sizeof (struct pollfd));
+	  (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->fd = fd;
+	  (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->events = mask;
+	  (gdb_notifier.poll_fds + gdb_notifier.num_fds - 1)->revents = 0;
 #else
-      internal_error (__FILE__, __LINE__,
-		      "use_poll without HAVE_POLL");
+	  internal_error (__FILE__, __LINE__,
+			  "use_poll without HAVE_POLL");
 #endif /* HAVE_POLL */
-    }
-  else
-    {
-      if (mask & GDB_READABLE)
-	FD_SET (fd, &gdb_notifier.check_masks[0]);
+	}
       else
-	FD_CLR (fd, &gdb_notifier.check_masks[0]);
+	{
+	  if (mask & GDB_READABLE)
+	    FD_SET (fd, &gdb_notifier.check_masks[0]);
+	  else
+	    FD_CLR (fd, &gdb_notifier.check_masks[0]);
 
-      if (mask & GDB_WRITABLE)
-	FD_SET (fd, &gdb_notifier.check_masks[1]);
-      else
-	FD_CLR (fd, &gdb_notifier.check_masks[1]);
+	  if (mask & GDB_WRITABLE)
+	    FD_SET (fd, &gdb_notifier.check_masks[1]);
+	  else
+	    FD_CLR (fd, &gdb_notifier.check_masks[1]);
 
-      if (mask & GDB_EXCEPTION)
-	FD_SET (fd, &gdb_notifier.check_masks[2]);
-      else
-	FD_CLR (fd, &gdb_notifier.check_masks[2]);
+	  if (mask & GDB_EXCEPTION)
+	    FD_SET (fd, &gdb_notifier.check_masks[2]);
+	  else
+	    FD_CLR (fd, &gdb_notifier.check_masks[2]);
 
-      if (gdb_notifier.num_fds <= fd)
-	gdb_notifier.num_fds = fd + 1;
+	  if (gdb_notifier.num_fds <= fd)
+	    gdb_notifier.num_fds = fd + 1;
+	}
     }
+
+  file_ptr->proc = proc;
+  file_ptr->client_data = client_data;
+  file_ptr->mask = mask;
 }
 
 /* Remove the file descriptor FD from the list of monitored fd's: